Takmela: Reverse-same-generation Datalog Example (full)

A well-known example program for Datalog, which I found in the book "Foundations of Databases" by Abiteboul, Hull & Viano, presented in chapter 13

The complete example is presented on this page. An abridged version (the difference being a smaller fact set) is presented here. I don't realistically expect readers to follow this long trace (at a whopping 127 trace steps) but since I had it anyway I included it for fun; an interesting research problem is how to make even this trace understandable so I'll leave it as a reminder!

// 'up' means 'goes up to'
up("a", "e").
up("a", "f").
up("f", "m").
up("g", "n").
up("h", "n").
up("i", "o").
up("j", "o").

// 'goes horizontally toward'
flat("g", "f").
flat("m", "n").
flat("m", "o").
flat("p", "m").

// 'goes down to'
down("l", "f").
down("m", "f").
down("g", "b").
down("h", "c").
down("i", "d").
down("p", "k").

reverse_same_generation(X, Y):-
    flat(X, Y).

reverse_same_generation(X, Y):-
    up(X, X1),
    reverse_same_generation(Y1, X1),
    down(Y1, Y)
    .

reverse_same_generation(A, B)

For the sake of reducing graph size, the identifiers 'up' , 'down' , 'flat' and 'reverse_same_generation' will be renamed in the actual trace to 'u' , 'd' , 'f' and 'r' respectively.

Hint: Hovering over a graph expands it

Trace appears confusing? This might help

Call start rule
	#0: Called r(?, ?) at the top level (will process) Processing r(?, ?) codePos r(X, Y)→•f(X,Y) Calling fact: f(?, ?) Found fact: f(?, ?) → [g, f] Found fact: f(?, ?) → [m, n] Found fact: f(?, ?) → [m, o] Found fact: f(?, ?) → [p, m] Processing r(?, ?) codePos r(X, Y)→•u(X,X1), r(Y1,X1), d(Y1,Y) Calling fact: u(?, ?) Found fact: u(?, ?) → [a, e] Found fact: u(?, ?) → [a, f] Found fact: u(?, ?) → [f, m] Found fact: u(?, ?) → [g, n] Found fact: u(?, ?) → [h, n] Found fact: u(?, ?) → [i, o] Found fact: u(?, ?) → [j, o]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o]
Iteration 0
Worklist - successes jS u(?, ?) → (a, e) jS u(?, ?) → (a, f) jS u(?, ?) → (j, o) jS u(?, ?) → (h, n) jS u(?, ?) → (i, o) jS u(?, ?) → (f, m) jS u(?, ?) → (g, n) jS f(?, ?) → (g, f) jS f(?, ?) → (m, n) jS f(?, ?) → (m, o) jS f(?, ?) → (p, m) Worklist - continuations S⤚ u(?, ?) → r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y) S⤚ f(?, ?) → r(X, Y)→f(X,Y)•
	#1: JoinS: u(?, ?) → [a, e] will resume cont: r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y) newVars: {X=a, X1=e} Processing r(?, ?) codePos r(X, Y)→u(X|a,X1|e)•r(Y1,X1|e), d(Y1,Y) Calling: r(?, e) [will process] Processing r(?, e) codePos r(X, Y)→•f(X,Y|e) Calling fact: f(?, e) Processing r(?, e) codePos r(X, Y)→•u(X,X1), r(Y1,X1), d(Y1,Y|e) Calling fact: u(?, ?) Found fact: u(?, ?) → [a, e] Found fact: u(?, ?) → [a, f] Found fact: u(?, ?) → [f, m] Found fact: u(?, ?) → [g, n] Found fact: u(?, ?) → [h, n] Found fact: u(?, ?) → [i, o] Found fact: u(?, ?) → [j, o]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o]
	#2: JoinS: u(?, ?) → [a, f] will resume cont: r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y) newVars: {X=a, X1=f} Processing r(?, ?) codePos r(X, Y)→u(X|a,X1|f)•r(Y1,X1|f), d(Y1,Y) Calling: r(?, f) [will process] Processing r(?, f) codePos r(X, Y)→•f(X,Y|f) Calling fact: f(?, f) Found fact: f(?, f) → [g, f] Processing r(?, f) codePos r(X, Y)→•u(X,X1), r(Y1,X1), d(Y1,Y|f) Calling fact: u(?, ?) Found fact: u(?, ?) → [a, e] Found fact: u(?, ?) → [a, f] Found fact: u(?, ?) → [f, m] Found fact: u(?, ?) → [g, n] Found fact: u(?, ?) → [h, n] Found fact: u(?, ?) → [i, o] Found fact: u(?, ?) → [j, o]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o]
	#3: JoinS: u(?, ?) → [j, o] will resume cont: r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y) newVars: {X=j, X1=o} Processing r(?, ?) codePos r(X, Y)→u(X|j,X1|o)•r(Y1,X1|o), d(Y1,Y) Calling: r(?, o) [will process] Processing r(?, o) codePos r(X, Y)→•f(X,Y|o) Calling fact: f(?, o) Found fact: f(?, o) → [m, o] Processing r(?, o) codePos r(X, Y)→•u(X,X1), r(Y1,X1), d(Y1,Y|o) Calling fact: u(?, ?) Found fact: u(?, ?) → [a, e] Found fact: u(?, ?) → [a, f] Found fact: u(?, ?) → [f, m] Found fact: u(?, ?) → [g, n] Found fact: u(?, ?) → [h, n] Found fact: u(?, ?) → [i, o] Found fact: u(?, ?) → [j, o]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o]
	#4: JoinS: u(?, ?) → [h, n] will resume cont: r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y) newVars: {X=h, X1=n} Processing r(?, ?) codePos r(X, Y)→u(X|h,X1|n)•r(Y1,X1|n), d(Y1,Y) Calling: r(?, n) [will process] Processing r(?, n) codePos r(X, Y)→•f(X,Y|n) Calling fact: f(?, n) Found fact: f(?, n) → [m, n] Processing r(?, n) codePos r(X, Y)→•u(X,X1), r(Y1,X1), d(Y1,Y|n) Calling fact: u(?, ?) Found fact: u(?, ?) → [a, e] Found fact: u(?, ?) → [a, f] Found fact: u(?, ?) → [f, m] Found fact: u(?, ?) → [g, n] Found fact: u(?, ?) → [h, n] Found fact: u(?, ?) → [i, o] Found fact: u(?, ?) → [j, o]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o]
	#5: JoinS: u(?, ?) → [i, o] will resume cont: r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y) newVars: {X=i, X1=o} Processing r(?, ?) codePos r(X, Y)→u(X|i,X1|o)•r(Y1,X1|o), d(Y1,Y) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o]
	#6: JoinS: u(?, ?) → [f, m] will resume cont: r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y) newVars: {X=f, X1=m} Processing r(?, ?) codePos r(X, Y)→u(X|f,X1|m)•r(Y1,X1|m), d(Y1,Y) Calling: r(?, m) [will process] Processing r(?, m) codePos r(X, Y)→•f(X,Y|m) Calling fact: f(?, m) Found fact: f(?, m) → [p, m] Processing r(?, m) codePos r(X, Y)→•u(X,X1), r(Y1,X1), d(Y1,Y|m) Calling fact: u(?, ?) Found fact: u(?, ?) → [a, e] Found fact: u(?, ?) → [a, f] Found fact: u(?, ?) → [f, m] Found fact: u(?, ?) → [g, n] Found fact: u(?, ?) → [h, n] Found fact: u(?, ?) → [i, o] Found fact: u(?, ?) → [j, o]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o]
	#7: JoinS: u(?, ?) → [g, n] will resume cont: r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y) newVars: {X=g, X1=n} Processing r(?, ?) codePos r(X, Y)→u(X|g,X1|n)•r(Y1,X1|n), d(Y1,Y) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o]
	#8: JoinS: f(?, ?) → [g, f] will resume cont: r(X, Y)→f(X,Y)• newVars: {X=g, Y=f} Processing r(?, ?) codePos r(X, Y)→f(X|g,Y|f)• Reached end of rule, success! r(?, ?) → [g, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f]
	#9: JoinS: f(?, ?) → [m, n] will resume cont: r(X, Y)→f(X,Y)• newVars: {X=m, Y=n} Processing r(?, ?) codePos r(X, Y)→f(X|m,Y|n)• Reached end of rule, success! r(?, ?) → [m, n]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n]
	#10: JoinS: f(?, ?) → [m, o] will resume cont: r(X, Y)→f(X,Y)• newVars: {X=m, Y=o} Processing r(?, ?) codePos r(X, Y)→f(X|m,Y|o)• Reached end of rule, success! r(?, ?) → [m, o]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o]
	#11: JoinS: f(?, ?) → [p, m] will resume cont: r(X, Y)→f(X,Y)• newVars: {X=p, Y=m} Processing r(?, ?) codePos r(X, Y)→f(X|p,Y|m)• Reached end of rule, success! r(?, ?) → [p, m]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m]
Iteration 1
Worklist - successes jS f(?, f) → (g, f) jS r(?, ?) → (g, f) jS r(?, ?) → (m, n) jS r(?, ?) → (m, o) jS r(?, ?) → (p, m) jS f(?, o) → (m, o) jS f(?, n) → (m, n) jS f(?, m) → (p, m) Worklist - continuations S⤚ f(?, f) → r(X, Y)→f(X,Y|f)• nJ f(?, e) → r(X, Y)→f(X,Y|e)• nJ r(?, o) → r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y) nJ r(?, o) → r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y) nJ r(?, n) → r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y) nJ r(?, n) → r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y) jK u(?, ?) → r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|e) jK u(?, ?) → r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|m) jK u(?, ?) → r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|f) jK u(?, ?) → r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|o) jK u(?, ?) → r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|n) nJ r(?, m) → r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y) S⤚ f(?, o) → r(X, Y)→f(X,Y|o)• S⤚ f(?, n) → r(X, Y)→f(X,Y|n)• S⤚ f(?, m) → r(X, Y)→f(X,Y|m)• nJ r(?, f) → r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y) nJ r(?, e) → r(X, Y)→u(X|a,X1|e), r(Y1,X1|e)•d(Y1,Y)
	#12: JoinS: f(?, f) → [g, f] will resume cont: r(X, Y)→f(X,Y|f)• newVars: {X=g} Processing r(?, f) codePos r(X, Y)→f(X|g,Y|f)• Reached end of rule, success! r(?, f) → [g, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f]
	#13: JoinS: r(?, ?) → [g, f] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=g, V1=f} Processing Root() codePos Root(V0, V1)→r(V0|g,V1|f)• Reached end of rule, success! Root() → [g, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓
	#14: JoinS: r(?, ?) → [m, n] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=m, V1=n} Processing Root() codePos Root(V0, V1)→r(V0|m,V1|n)• Reached end of rule, success! Root() → [m, n]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓
	#15: JoinS: r(?, ?) → [m, o] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=m, V1=o} Processing Root() codePos Root(V0, V1)→r(V0|m,V1|o)• Reached end of rule, success! Root() → [m, o]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓
	#16: JoinS: r(?, ?) → [p, m] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=p, V1=m} Processing Root() codePos Root(V0, V1)→r(V0|p,V1|m)• Reached end of rule, success! Root() → [p, m]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓
	#17: JoinS: f(?, o) → [m, o] will resume cont: r(X, Y)→f(X,Y|o)• newVars: {X=m} Processing r(?, o) codePos r(X, Y)→f(X|m,Y|o)• Reached end of rule, success! r(?, o) → [m, o]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o]
	#18: JoinS: f(?, n) → [m, n] will resume cont: r(X, Y)→f(X,Y|n)• newVars: {X=m} Processing r(?, n) codePos r(X, Y)→f(X|m,Y|n)• Reached end of rule, success! r(?, n) → [m, n]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n]
	#19: JoinS: f(?, m) → [p, m] will resume cont: r(X, Y)→f(X,Y|m)• newVars: {X=p} Processing r(?, m) codePos r(X, Y)→f(X|p,Y|m)• Reached end of rule, success! r(?, m) → [p, m]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#20: JoinK: u(?, ?) will use u(?, ?) → [a, e] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|e) newVars: {X=a, X1=e} Processing r(?, e) codePos r(X, Y)→u(X|a,X1|e)•r(Y1,X1|e), d(Y1,Y|e) Calling: r(?, e) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#21: JoinK: u(?, ?) will use u(?, ?) → [a, f] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|e) newVars: {X=a, X1=f} Processing r(?, e) codePos r(X, Y)→u(X|a,X1|f)•r(Y1,X1|f), d(Y1,Y|e) Calling: r(?, f) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#22: JoinK: u(?, ?) will use u(?, ?) → [j, o] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|e) newVars: {X=j, X1=o} Processing r(?, e) codePos r(X, Y)→u(X|j,X1|o)•r(Y1,X1|o), d(Y1,Y|e) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#23: JoinK: u(?, ?) will use u(?, ?) → [h, n] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|e) newVars: {X=h, X1=n} Processing r(?, e) codePos r(X, Y)→u(X|h,X1|n)•r(Y1,X1|n), d(Y1,Y|e) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#24: JoinK: u(?, ?) will use u(?, ?) → [i, o] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|e) newVars: {X=i, X1=o} Processing r(?, e) codePos r(X, Y)→u(X|i,X1|o)•r(Y1,X1|o), d(Y1,Y|e) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#25: JoinK: u(?, ?) will use u(?, ?) → [f, m] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|e) newVars: {X=f, X1=m} Processing r(?, e) codePos r(X, Y)→u(X|f,X1|m)•r(Y1,X1|m), d(Y1,Y|e) Calling: r(?, m) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#26: JoinK: u(?, ?) will use u(?, ?) → [g, n] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|e) newVars: {X=g, X1=n} Processing r(?, e) codePos r(X, Y)→u(X|g,X1|n)•r(Y1,X1|n), d(Y1,Y|e) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#27: JoinK: u(?, ?) will use u(?, ?) → [a, e] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|m) newVars: {X=a, X1=e} Processing r(?, m) codePos r(X, Y)→u(X|a,X1|e)•r(Y1,X1|e), d(Y1,Y|m) Calling: r(?, e) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#28: JoinK: u(?, ?) will use u(?, ?) → [a, f] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|m) newVars: {X=a, X1=f} Processing r(?, m) codePos r(X, Y)→u(X|a,X1|f)•r(Y1,X1|f), d(Y1,Y|m) Calling: r(?, f) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#29: JoinK: u(?, ?) will use u(?, ?) → [j, o] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|m) newVars: {X=j, X1=o} Processing r(?, m) codePos r(X, Y)→u(X|j,X1|o)•r(Y1,X1|o), d(Y1,Y|m) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#30: JoinK: u(?, ?) will use u(?, ?) → [h, n] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|m) newVars: {X=h, X1=n} Processing r(?, m) codePos r(X, Y)→u(X|h,X1|n)•r(Y1,X1|n), d(Y1,Y|m) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#31: JoinK: u(?, ?) will use u(?, ?) → [i, o] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|m) newVars: {X=i, X1=o} Processing r(?, m) codePos r(X, Y)→u(X|i,X1|o)•r(Y1,X1|o), d(Y1,Y|m) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#32: JoinK: u(?, ?) will use u(?, ?) → [f, m] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|m) newVars: {X=f, X1=m} Processing r(?, m) codePos r(X, Y)→u(X|f,X1|m)•r(Y1,X1|m), d(Y1,Y|m) Calling: r(?, m) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#33: JoinK: u(?, ?) will use u(?, ?) → [g, n] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|m) newVars: {X=g, X1=n} Processing r(?, m) codePos r(X, Y)→u(X|g,X1|n)•r(Y1,X1|n), d(Y1,Y|m) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#34: JoinK: u(?, ?) will use u(?, ?) → [a, e] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|f) newVars: {X=a, X1=e} Processing r(?, f) codePos r(X, Y)→u(X|a,X1|e)•r(Y1,X1|e), d(Y1,Y|f) Calling: r(?, e) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#35: JoinK: u(?, ?) will use u(?, ?) → [a, f] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|f) newVars: {X=a, X1=f} Processing r(?, f) codePos r(X, Y)→u(X|a,X1|f)•r(Y1,X1|f), d(Y1,Y|f) Calling: r(?, f) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#36: JoinK: u(?, ?) will use u(?, ?) → [j, o] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|f) newVars: {X=j, X1=o} Processing r(?, f) codePos r(X, Y)→u(X|j,X1|o)•r(Y1,X1|o), d(Y1,Y|f) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#37: JoinK: u(?, ?) will use u(?, ?) → [h, n] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|f) newVars: {X=h, X1=n} Processing r(?, f) codePos r(X, Y)→u(X|h,X1|n)•r(Y1,X1|n), d(Y1,Y|f) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#38: JoinK: u(?, ?) will use u(?, ?) → [i, o] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|f) newVars: {X=i, X1=o} Processing r(?, f) codePos r(X, Y)→u(X|i,X1|o)•r(Y1,X1|o), d(Y1,Y|f) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#39: JoinK: u(?, ?) will use u(?, ?) → [f, m] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|f) newVars: {X=f, X1=m} Processing r(?, f) codePos r(X, Y)→u(X|f,X1|m)•r(Y1,X1|m), d(Y1,Y|f) Calling: r(?, m) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#40: JoinK: u(?, ?) will use u(?, ?) → [g, n] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|f) newVars: {X=g, X1=n} Processing r(?, f) codePos r(X, Y)→u(X|g,X1|n)•r(Y1,X1|n), d(Y1,Y|f) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#41: JoinK: u(?, ?) will use u(?, ?) → [a, e] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|o) newVars: {X=a, X1=e} Processing r(?, o) codePos r(X, Y)→u(X|a,X1|e)•r(Y1,X1|e), d(Y1,Y|o) Calling: r(?, e) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#42: JoinK: u(?, ?) will use u(?, ?) → [a, f] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|o) newVars: {X=a, X1=f} Processing r(?, o) codePos r(X, Y)→u(X|a,X1|f)•r(Y1,X1|f), d(Y1,Y|o) Calling: r(?, f) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#43: JoinK: u(?, ?) will use u(?, ?) → [j, o] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|o) newVars: {X=j, X1=o} Processing r(?, o) codePos r(X, Y)→u(X|j,X1|o)•r(Y1,X1|o), d(Y1,Y|o) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#44: JoinK: u(?, ?) will use u(?, ?) → [h, n] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|o) newVars: {X=h, X1=n} Processing r(?, o) codePos r(X, Y)→u(X|h,X1|n)•r(Y1,X1|n), d(Y1,Y|o) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#45: JoinK: u(?, ?) will use u(?, ?) → [i, o] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|o) newVars: {X=i, X1=o} Processing r(?, o) codePos r(X, Y)→u(X|i,X1|o)•r(Y1,X1|o), d(Y1,Y|o) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#46: JoinK: u(?, ?) will use u(?, ?) → [f, m] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|o) newVars: {X=f, X1=m} Processing r(?, o) codePos r(X, Y)→u(X|f,X1|m)•r(Y1,X1|m), d(Y1,Y|o) Calling: r(?, m) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#47: JoinK: u(?, ?) will use u(?, ?) → [g, n] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|o) newVars: {X=g, X1=n} Processing r(?, o) codePos r(X, Y)→u(X|g,X1|n)•r(Y1,X1|n), d(Y1,Y|o) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#48: JoinK: u(?, ?) will use u(?, ?) → [a, e] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|n) newVars: {X=a, X1=e} Processing r(?, n) codePos r(X, Y)→u(X|a,X1|e)•r(Y1,X1|e), d(Y1,Y|n) Calling: r(?, e) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#49: JoinK: u(?, ?) will use u(?, ?) → [a, f] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|n) newVars: {X=a, X1=f} Processing r(?, n) codePos r(X, Y)→u(X|a,X1|f)•r(Y1,X1|f), d(Y1,Y|n) Calling: r(?, f) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#50: JoinK: u(?, ?) will use u(?, ?) → [j, o] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|n) newVars: {X=j, X1=o} Processing r(?, n) codePos r(X, Y)→u(X|j,X1|o)•r(Y1,X1|o), d(Y1,Y|n) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#51: JoinK: u(?, ?) will use u(?, ?) → [h, n] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|n) newVars: {X=h, X1=n} Processing r(?, n) codePos r(X, Y)→u(X|h,X1|n)•r(Y1,X1|n), d(Y1,Y|n) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#52: JoinK: u(?, ?) will use u(?, ?) → [i, o] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|n) newVars: {X=i, X1=o} Processing r(?, n) codePos r(X, Y)→u(X|i,X1|o)•r(Y1,X1|o), d(Y1,Y|n) Calling: r(?, o) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#53: JoinK: u(?, ?) will use u(?, ?) → [f, m] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|n) newVars: {X=f, X1=m} Processing r(?, n) codePos r(X, Y)→u(X|f,X1|m)•r(Y1,X1|m), d(Y1,Y|n) Calling: r(?, m) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#54: JoinK: u(?, ?) will use u(?, ?) → [g, n] to resume r(X, Y)→u(X,X1)•r(Y1,X1), d(Y1,Y|n) newVars: {X=g, X1=n} Processing r(?, n) codePos r(X, Y)→u(X|g,X1|n)•r(Y1,X1|n), d(Y1,Y|n) Calling: r(?, n) [already processed]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
Iteration 2
Worklist - successes jS r(?, o) → (m, o) nJ Root() → (g, f) nJ Root() → (m, n) nJ Root() → (m, o) nJ Root() → (p, m) jS r(?, n) → (m, n) jS r(?, m) → (p, m) jS r(?, f) → (g, f) Worklist - continuations S⤚ r(?, o) → r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y|e) S⤚ r(?, o) → r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y|m) S⤚ r(?, o) → r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y|f) S⤚ r(?, o) → r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y|o) S⤚ r(?, o) → r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y|n) S⤚ r(?, o) → r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y|e) S⤚ r(?, o) → r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y|m) S⤚ r(?, o) → r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y|f) S⤚ r(?, o) → r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y|o) S⤚ r(?, o) → r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y|n) S⤚ r(?, n) → r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y|e) S⤚ r(?, n) → r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y|m) S⤚ r(?, n) → r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y|e) S⤚ r(?, n) → r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y|m) S⤚ r(?, n) → r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y|f) S⤚ r(?, n) → r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y|o) S⤚ r(?, n) → r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y|n) S⤚ r(?, n) → r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y|f) S⤚ r(?, n) → r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y|o) S⤚ r(?, n) → r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y|n) S⤚ r(?, m) → r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y|e) S⤚ r(?, m) → r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y|m) S⤚ r(?, m) → r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y|f) S⤚ r(?, m) → r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y|o) S⤚ r(?, m) → r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y|n) S⤚ r(?, f) → r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|e) S⤚ r(?, f) → r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|m) S⤚ r(?, f) → r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|f) S⤚ r(?, f) → r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|o) S⤚ r(?, f) → r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|n) nJ r(?, e) → r(X, Y)→u(X|a,X1|e), r(Y1,X1|e)•d(Y1,Y|e) nJ r(?, e) → r(X, Y)→u(X|a,X1|e), r(Y1,X1|e)•d(Y1,Y|m) nJ r(?, e) → r(X, Y)→u(X|a,X1|e), r(Y1,X1|e)•d(Y1,Y|f) nJ r(?, e) → r(X, Y)→u(X|a,X1|e), r(Y1,X1|e)•d(Y1,Y|o) nJ r(?, e) → r(X, Y)→u(X|a,X1|e), r(Y1,X1|e)•d(Y1,Y|n)
	#55: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y|e) newVars: {Y1=m} Processing r(?, e) codePos r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y|e) Calling fact: d(m, e)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#56: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y|m) newVars: {Y1=m} Processing r(?, m) codePos r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y|m) Calling fact: d(m, m)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m]
	#57: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y) newVars: {Y1=m} Processing r(?, ?) codePos r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y) Calling fact: d(m, ?) Found fact: d(m, ?) → [m, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f]
	#58: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y) newVars: {Y1=m} Processing r(?, ?) codePos r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y) Calling fact: d(m, ?) Found fact: d(m, ?) → [m, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f]
	#59: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y|f) newVars: {Y1=m} Processing r(?, f) codePos r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y|f) Calling fact: d(m, f) Found fact: d(m, f) → [m, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f]
	#60: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y|o) newVars: {Y1=m} Processing r(?, o) codePos r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y|o) Calling fact: d(m, o)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f]
	#61: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|i,X1|o), r(Y1,X1|o)•d(Y1,Y|n) newVars: {Y1=m} Processing r(?, n) codePos r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y|n) Calling fact: d(m, n)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f]
	#62: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y|e) newVars: {Y1=m} Processing r(?, e) codePos r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y|e) Calling fact: d(m, e)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f]
	#63: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y|m) newVars: {Y1=m} Processing r(?, m) codePos r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y|m) Calling fact: d(m, m)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f]
	#64: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y|f) newVars: {Y1=m} Processing r(?, f) codePos r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y|f) Calling fact: d(m, f) Found fact: d(m, f) → [m, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f]
	#65: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y|o) newVars: {Y1=m} Processing r(?, o) codePos r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y|o) Calling fact: d(m, o)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f]
	#66: JoinS: r(?, o) → [m, o] will resume cont: r(X, Y)→u(X|j,X1|o), r(Y1,X1|o)•d(Y1,Y|n) newVars: {Y1=m} Processing r(?, n) codePos r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o)•d(Y1|m,Y|n) Calling fact: d(m, n)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f]
	#67: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y) newVars: {Y1=m} Processing r(?, ?) codePos r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y) Calling fact: d(m, ?) Found fact: d(m, ?) → [m, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f]
	#68: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y|e) newVars: {Y1=m} Processing r(?, e) codePos r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y|e) Calling fact: d(m, e)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f]
	#69: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y|m) newVars: {Y1=m} Processing r(?, m) codePos r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y|m) Calling fact: d(m, m)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f]
	#70: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y|e) newVars: {Y1=m} Processing r(?, e) codePos r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y|e) Calling fact: d(m, e)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f]
	#71: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y|m) newVars: {Y1=m} Processing r(?, m) codePos r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y|m) Calling fact: d(m, m)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f]
	#72: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y) newVars: {Y1=m} Processing r(?, ?) codePos r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y) Calling fact: d(m, ?) Found fact: d(m, ?) → [m, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f]
	#73: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y|f) newVars: {Y1=m} Processing r(?, f) codePos r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y|f) Calling fact: d(m, f) Found fact: d(m, f) → [m, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f]
	#74: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y|o) newVars: {Y1=m} Processing r(?, o) codePos r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y|o) Calling fact: d(m, o)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f]
	#75: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|h,X1|n), r(Y1,X1|n)•d(Y1,Y|n) newVars: {Y1=m} Processing r(?, n) codePos r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y|n) Calling fact: d(m, n)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f]
	#76: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y|f) newVars: {Y1=m} Processing r(?, f) codePos r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y|f) Calling fact: d(m, f) Found fact: d(m, f) → [m, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f]
	#77: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y|o) newVars: {Y1=m} Processing r(?, o) codePos r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y|o) Calling fact: d(m, o)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f]
	#78: JoinS: r(?, n) → [m, n] will resume cont: r(X, Y)→u(X|g,X1|n), r(Y1,X1|n)•d(Y1,Y|n) newVars: {Y1=m} Processing r(?, n) codePos r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n)•d(Y1|m,Y|n) Calling fact: d(m, n)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f]
	#79: JoinS: r(?, m) → [p, m] will resume cont: r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y) newVars: {Y1=p} Processing r(?, ?) codePos r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m)•d(Y1|p,Y) Calling fact: d(p, ?) Found fact: d(p, ?) → [p, k]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k]
	#80: JoinS: r(?, m) → [p, m] will resume cont: r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y|e) newVars: {Y1=p} Processing r(?, e) codePos r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m)•d(Y1|p,Y|e) Calling fact: d(p, e)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k]
	#81: JoinS: r(?, m) → [p, m] will resume cont: r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y|m) newVars: {Y1=p} Processing r(?, m) codePos r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m)•d(Y1|p,Y|m) Calling fact: d(p, m)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k]
	#82: JoinS: r(?, m) → [p, m] will resume cont: r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y|f) newVars: {Y1=p} Processing r(?, f) codePos r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m)•d(Y1|p,Y|f) Calling fact: d(p, f)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k]
	#83: JoinS: r(?, m) → [p, m] will resume cont: r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y|o) newVars: {Y1=p} Processing r(?, o) codePos r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m)•d(Y1|p,Y|o) Calling fact: d(p, o)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k]
	#84: JoinS: r(?, m) → [p, m] will resume cont: r(X, Y)→u(X|f,X1|m), r(Y1,X1|m)•d(Y1,Y|n) newVars: {Y1=p} Processing r(?, n) codePos r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m)•d(Y1|p,Y|n) Calling fact: d(p, n)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k]
	#85: JoinS: r(?, f) → [g, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y) newVars: {Y1=g} Processing r(?, ?) codePos r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f)•d(Y1|g,Y) Calling fact: d(g, ?) Found fact: d(g, ?) → [g, b]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b]
	#86: JoinS: r(?, f) → [g, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|e) newVars: {Y1=g} Processing r(?, e) codePos r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f)•d(Y1|g,Y|e) Calling fact: d(g, e)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b]
	#87: JoinS: r(?, f) → [g, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|m) newVars: {Y1=g} Processing r(?, m) codePos r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f)•d(Y1|g,Y|m) Calling fact: d(g, m)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b]
	#88: JoinS: r(?, f) → [g, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|f) newVars: {Y1=g} Processing r(?, f) codePos r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f)•d(Y1|g,Y|f) Calling fact: d(g, f)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b]
	#89: JoinS: r(?, f) → [g, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|o) newVars: {Y1=g} Processing r(?, o) codePos r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f)•d(Y1|g,Y|o) Calling fact: d(g, o)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b]
	#90: JoinS: r(?, f) → [g, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|n) newVars: {Y1=g} Processing r(?, n) codePos r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f)•d(Y1|g,Y|n) Calling fact: d(g, n)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b]
Iteration 3
Worklist - successes jS d(m, ?) → (m, f) jS d(p, ?) → (p, k) jS d(m, f) → (m, f) jS d(g, ?) → (g, b) Worklist - continuations nJ d(m, o) → r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|o)• nJ d(m, o) → r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|o)• nJ d(m, o) → r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|o)• nJ d(m, o) → r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|o)• nJ d(m, n) → r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|n)• nJ d(m, n) → r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|n)• nJ d(m, n) → r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|n)• nJ d(m, n) → r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|n)• nJ d(p, n) → r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m), d(Y1|p,Y|n)• nJ d(g, e) → r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f), d(Y1|g,Y|e)• nJ d(p, m) → r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m), d(Y1|p,Y|m)• nJ d(m, m) → r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|m)• nJ d(m, m) → r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|m)• nJ d(m, m) → r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|m)• nJ d(m, m) → r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|m)• nJ d(p, o) → r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m), d(Y1|p,Y|o)• nJ d(g, f) → r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f), d(Y1|g,Y|f)• S⤚ d(m, f) → r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|f)• S⤚ d(m, f) → r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|f)• S⤚ d(m, f) → r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|f)• S⤚ d(m, f) → r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|f)• S⤚ d(g, ?) → r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f), d(Y1|g,Y)• nJ d(p, f) → r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m), d(Y1|p,Y|f)• nJ d(p, e) → r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m), d(Y1|p,Y|e)• nJ d(m, e) → r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|e)• nJ d(m, e) → r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|e)• nJ d(m, e) → r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|e)• nJ d(m, e) → r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|e)• S⤚ d(m, ?) → r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n), d(Y1|m,Y)• S⤚ d(m, ?) → r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o), d(Y1|m,Y)• S⤚ d(m, ?) → r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n), d(Y1|m,Y)• S⤚ d(m, ?) → r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o), d(Y1|m,Y)• S⤚ d(p, ?) → r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m), d(Y1|p,Y)• nJ d(g, m) → r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f), d(Y1|g,Y|m)• nJ d(g, o) → r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f), d(Y1|g,Y|o)• nJ d(g, n) → r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f), d(Y1|g,Y|n)•
	#91: JoinS: d(m, ?) → [m, f] will resume cont: r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n), d(Y1|m,Y)• newVars: {Y=f} Processing r(?, ?) codePos r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|f)• Reached end of rule, success! r(?, ?) → [g, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f]
	#92: JoinS: d(m, ?) → [m, f] will resume cont: r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o), d(Y1|m,Y)• newVars: {Y=f} Processing r(?, ?) codePos r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|f)• Reached end of rule, success! r(?, ?) → [i, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f]
	#93: JoinS: d(m, ?) → [m, f] will resume cont: r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n), d(Y1|m,Y)• newVars: {Y=f} Processing r(?, ?) codePos r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|f)• Reached end of rule, success! r(?, ?) → [h, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f]
	#94: JoinS: d(m, ?) → [m, f] will resume cont: r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o), d(Y1|m,Y)• newVars: {Y=f} Processing r(?, ?) codePos r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|f)• Reached end of rule, success! r(?, ?) → [j, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f]
	#95: JoinS: d(p, ?) → [p, k] will resume cont: r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m), d(Y1|p,Y)• newVars: {Y=k} Processing r(?, ?) codePos r(X, Y)→u(X|f,X1|m), r(Y1|p,X1|m), d(Y1|p,Y|k)• Reached end of rule, success! r(?, ?) → [f, k]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k]
	#96: JoinS: d(m, f) → [m, f] will resume cont: r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|f)• Processing r(?, f) codePos r(X, Y)→u(X|j,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|f)• Reached end of rule, success! r(?, f) → [j, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f]
	#97: JoinS: d(m, f) → [m, f] will resume cont: r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|f)• Processing r(?, f) codePos r(X, Y)→u(X|i,X1|o), r(Y1|m,X1|o), d(Y1|m,Y|f)• Reached end of rule, success! r(?, f) → [i, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f]
	#98: JoinS: d(m, f) → [m, f] will resume cont: r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|f)• Processing r(?, f) codePos r(X, Y)→u(X|h,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|f)• Reached end of rule, success! r(?, f) → [h, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f]
	#99: JoinS: d(m, f) → [m, f] will resume cont: r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|f)• Processing r(?, f) codePos r(X, Y)→u(X|g,X1|n), r(Y1|m,X1|n), d(Y1|m,Y|f)• Reached end of rule, success! r(?, f) → [g, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f]
	#100: JoinS: d(g, ?) → [g, b] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f), d(Y1|g,Y)• newVars: {Y=b} Processing r(?, ?) codePos r(X, Y)→u(X|a,X1|f), r(Y1|g,X1|f), d(Y1|g,Y|b)• Reached end of rule, success! r(?, ?) → [a, b]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b]
Iteration 4
Worklist - successes jS r(?, ?) → (a, b) jS r(?, ?) → (f, k) jS r(?, ?) → (j, f) jS r(?, ?) → (i, f) jS r(?, ?) → (h, f) jS r(?, f) → (j, f) jS r(?, f) → (i, f) jS r(?, f) → (h, f) Worklist - continuations
	#101: JoinS: r(?, ?) → [a, b] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=a, V1=b} Processing Root() codePos Root(V0, V1)→r(V0|a,V1|b)• Reached end of rule, success! Root() → [a, b]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓
	#102: JoinS: r(?, ?) → [f, k] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=f, V1=k} Processing Root() codePos Root(V0, V1)→r(V0|f,V1|k)• Reached end of rule, success! Root() → [f, k]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓
	#103: JoinS: r(?, ?) → [j, f] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=j, V1=f} Processing Root() codePos Root(V0, V1)→r(V0|j,V1|f)• Reached end of rule, success! Root() → [j, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓
	#104: JoinS: r(?, ?) → [i, f] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=i, V1=f} Processing Root() codePos Root(V0, V1)→r(V0|i,V1|f)• Reached end of rule, success! Root() → [i, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓
	#105: JoinS: r(?, ?) → [h, f] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=h, V1=f} Processing Root() codePos Root(V0, V1)→r(V0|h,V1|f)• Reached end of rule, success! Root() → [h, f]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓
	#106: JoinS: r(?, f) → [j, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y) newVars: {Y1=j} Processing r(?, ?) codePos r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f)•d(Y1|j,Y) Calling fact: d(j, ?)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓
	#107: JoinS: r(?, f) → [j, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|e) newVars: {Y1=j} Processing r(?, e) codePos r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f)•d(Y1|j,Y|e) Calling fact: d(j, e)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓
	#108: JoinS: r(?, f) → [j, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|m) newVars: {Y1=j} Processing r(?, m) codePos r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f)•d(Y1|j,Y|m) Calling fact: d(j, m)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓
	#109: JoinS: r(?, f) → [j, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|f) newVars: {Y1=j} Processing r(?, f) codePos r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f)•d(Y1|j,Y|f) Calling fact: d(j, f)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓
	#110: JoinS: r(?, f) → [j, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|o) newVars: {Y1=j} Processing r(?, o) codePos r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f)•d(Y1|j,Y|o) Calling fact: d(j, o)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓
	#111: JoinS: r(?, f) → [j, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|n) newVars: {Y1=j} Processing r(?, n) codePos r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f)•d(Y1|j,Y|n) Calling fact: d(j, n)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓
	#112: JoinS: r(?, f) → [i, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y) newVars: {Y1=i} Processing r(?, ?) codePos r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f)•d(Y1|i,Y) Calling fact: d(i, ?) Found fact: d(i, ?) → [i, d]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d]
	#113: JoinS: r(?, f) → [i, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|e) newVars: {Y1=i} Processing r(?, e) codePos r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f)•d(Y1|i,Y|e) Calling fact: d(i, e)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d]
	#114: JoinS: r(?, f) → [i, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|m) newVars: {Y1=i} Processing r(?, m) codePos r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f)•d(Y1|i,Y|m) Calling fact: d(i, m)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d]
	#115: JoinS: r(?, f) → [i, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|f) newVars: {Y1=i} Processing r(?, f) codePos r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f)•d(Y1|i,Y|f) Calling fact: d(i, f)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d]
	#116: JoinS: r(?, f) → [i, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|o) newVars: {Y1=i} Processing r(?, o) codePos r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f)•d(Y1|i,Y|o) Calling fact: d(i, o)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d]
	#117: JoinS: r(?, f) → [i, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|n) newVars: {Y1=i} Processing r(?, n) codePos r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f)•d(Y1|i,Y|n) Calling fact: d(i, n)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d]
	#118: JoinS: r(?, f) → [h, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y) newVars: {Y1=h} Processing r(?, ?) codePos r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f)•d(Y1|h,Y) Calling fact: d(h, ?) Found fact: d(h, ?) → [h, c]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d] d(h, ?) → [h, c]
	#119: JoinS: r(?, f) → [h, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|e) newVars: {Y1=h} Processing r(?, e) codePos r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f)•d(Y1|h,Y|e) Calling fact: d(h, e)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d] d(h, ?) → [h, c]
	#120: JoinS: r(?, f) → [h, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|m) newVars: {Y1=h} Processing r(?, m) codePos r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f)•d(Y1|h,Y|m) Calling fact: d(h, m)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d] d(h, ?) → [h, c]
	#121: JoinS: r(?, f) → [h, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|f) newVars: {Y1=h} Processing r(?, f) codePos r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f)•d(Y1|h,Y|f) Calling fact: d(h, f)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d] d(h, ?) → [h, c]
	#122: JoinS: r(?, f) → [h, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|o) newVars: {Y1=h} Processing r(?, o) codePos r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f)•d(Y1|h,Y|o) Calling fact: d(h, o)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d] d(h, ?) → [h, c]
	#123: JoinS: r(?, f) → [h, f] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1,X1|f)•d(Y1,Y|n) newVars: {Y1=h} Processing r(?, n) codePos r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f)•d(Y1|h,Y|n) Calling fact: d(h, n)
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d] d(h, ?) → [h, c]
Iteration 5
Worklist - successes nJ Root() → (a, b) nJ Root() → (f, k) nJ Root() → (j, f) nJ Root() → (i, f) nJ Root() → (h, f) jS d(h, ?) → (h, c) jS d(i, ?) → (i, d) Worklist - continuations nJ d(j, n) → r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f), d(Y1|j,Y|n)• nJ d(i, m) → r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f), d(Y1|i,Y|m)• nJ d(j, m) → r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f), d(Y1|j,Y|m)• nJ d(h, f) → r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f), d(Y1|h,Y|f)• nJ d(i, f) → r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f), d(Y1|i,Y|f)• nJ d(h, e) → r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f), d(Y1|h,Y|e)• nJ d(j, f) → r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f), d(Y1|j,Y|f)• nJ d(i, e) → r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f), d(Y1|i,Y|e)• nJ d(j, e) → r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f), d(Y1|j,Y|e)• nJ d(j, ?) → r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f), d(Y1|j,Y)• S⤚ d(h, ?) → r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f), d(Y1|h,Y)• S⤚ d(i, ?) → r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f), d(Y1|i,Y)• nJ d(i, o) → r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f), d(Y1|i,Y|o)• nJ d(h, n) → r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f), d(Y1|h,Y|n)• nJ d(j, o) → r(X, Y)→u(X|a,X1|f), r(Y1|j,X1|f), d(Y1|j,Y|o)• nJ d(i, n) → r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f), d(Y1|i,Y|n)• nJ d(h, m) → r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f), d(Y1|h,Y|m)• nJ d(h, o) → r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f), d(Y1|h,Y|o)•
	#124: JoinS: d(h, ?) → [h, c] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f), d(Y1|h,Y)• newVars: {Y=c} Processing r(?, ?) codePos r(X, Y)→u(X|a,X1|f), r(Y1|h,X1|f), d(Y1|h,Y|c)• Reached end of rule, success! r(?, ?) → [a, c]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d] d(h, ?) → [h, c] r(?, ?) → [a, c]
	#125: JoinS: d(i, ?) → [i, d] will resume cont: r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f), d(Y1|i,Y)• newVars: {Y=d} Processing r(?, ?) codePos r(X, Y)→u(X|a,X1|f), r(Y1|i,X1|f), d(Y1|i,Y|d)• Reached end of rule, success! r(?, ?) → [a, d]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d] d(h, ?) → [h, c] r(?, ?) → [a, c] r(?, ?) → [a, d]
Iteration 6
Worklist - successes jS r(?, ?) → (a, c) jS r(?, ?) → (a, d) Worklist - continuations
	#126: JoinS: r(?, ?) → [a, c] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=a, V1=c} Processing Root() codePos Root(V0, V1)→r(V0|a,V1|c)• Reached end of rule, success! Root() → [a, c]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d] d(h, ?) → [h, c] r(?, ?) → [a, c] r(?, ?) → [a, d] Root() → [a, c]✓
	#127: JoinS: r(?, ?) → [a, d] will resume cont: Root(V0, V1)→r(V0,V1)• newVars: {V0=a, V1=d} Processing Root() codePos Root(V0, V1)→r(V0|a,V1|d)• Reached end of rule, success! Root() → [a, d]
f(?, ?) → [g, f] f(?, ?) → [m, n] f(?, ?) → [m, o] f(?, ?) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, f) → [g, f] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, o) → [m, o] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, n) → [m, n] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] f(?, m) → [p, m] u(?, ?) → [a, e] u(?, ?) → [a, f] u(?, ?) → [f, m] u(?, ?) → [g, n] u(?, ?) → [h, n] u(?, ?) → [i, o] u(?, ?) → [j, o] r(?, ?) → [g, f] r(?, ?) → [m, n] r(?, ?) → [m, o] r(?, ?) → [p, m] r(?, f) → [g, f] Root() → [g, f]✓ Root() → [m, n]✓ Root() → [m, o]✓ Root() → [p, m]✓ r(?, o) → [m, o] r(?, n) → [m, n] r(?, m) → [p, m] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(m, ?) → [m, f] d(m, ?) → [m, f] d(m, f) → [m, f] d(m, f) → [m, f] d(p, ?) → [p, k] d(g, ?) → [g, b] r(?, ?) → [g, f] r(?, ?) → [i, f] r(?, ?) → [h, f] r(?, ?) → [j, f] r(?, ?) → [f, k] r(?, f) → [j, f] r(?, f) → [i, f] r(?, f) → [h, f] r(?, f) → [g, f] r(?, ?) → [a, b] Root() → [a, b]✓ Root() → [f, k]✓ Root() → [j, f]✓ Root() → [i, f]✓ Root() → [h, f]✓ d(i, ?) → [i, d] d(h, ?) → [h, c] r(?, ?) → [a, c] r(?, ?) → [a, d] Root() → [a, c]✓ Root() → [a, d]✓
Iteration 7
Worklist - successes nJ Root() → (a, c) nJ Root() → (a, d) Worklist - continuations
(No new calls or successes that can be further processed)
Iteration 8 [Fixed point reached]