/export/starexec/sandbox/solver/bin/starexec_run_ttt2-1.17+nonreach /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files


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MAYBE

Problem:
 active(f(a(),b(),X)) -> mark(f(X,X,X))
 active(c()) -> mark(a())
 active(c()) -> mark(b())
 active(f(X1,X2,X3)) -> f(active(X1),X2,X3)
 active(f(X1,X2,X3)) -> f(X1,X2,active(X3))
 f(mark(X1),X2,X3) -> mark(f(X1,X2,X3))
 f(X1,X2,mark(X3)) -> mark(f(X1,X2,X3))
 proper(f(X1,X2,X3)) -> f(proper(X1),proper(X2),proper(X3))
 proper(a()) -> ok(a())
 proper(b()) -> ok(b())
 proper(c()) -> ok(c())
 f(ok(X1),ok(X2),ok(X3)) -> ok(f(X1,X2,X3))
 top(mark(X)) -> top(proper(X))
 top(ok(X)) -> top(active(X))

Proof:
 Open