/export/starexec/sandbox2/solver/bin/starexec_run_ttt2-1.17+nonreach /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files


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MAYBE

Problem:
 a(a(x1)) -> b(a(b(x1)))
 a(a(a(x1))) -> a(b(a(b(a(x1)))))
 a(b(a(x1))) -> b(b(a(b(b(x1)))))
 a(a(a(a(x1)))) -> a(a(b(a(b(a(a(x1)))))))
 a(a(b(a(x1)))) -> a(b(b(a(b(a(b(x1)))))))
 a(b(a(a(x1)))) -> b(a(b(a(b(b(a(x1)))))))
 a(b(b(a(x1)))) -> b(b(b(a(b(b(b(x1)))))))
 a(a(a(a(a(x1))))) -> a(a(a(b(a(b(a(a(a(x1)))))))))
 a(a(a(b(a(x1))))) -> a(a(b(b(a(b(a(a(b(x1)))))))))
 a(a(b(a(a(x1))))) -> a(b(a(b(a(b(a(b(a(x1)))))))))
 a(a(b(b(a(x1))))) -> a(b(b(b(a(b(a(b(b(x1)))))))))
 a(b(a(a(a(x1))))) -> b(a(a(b(a(b(b(a(a(x1)))))))))
 a(b(a(b(a(x1))))) -> b(a(b(b(a(b(b(a(b(x1)))))))))
 a(b(b(a(a(x1))))) -> b(b(a(b(a(b(b(b(a(x1)))))))))
 a(b(b(b(a(x1))))) -> b(b(b(b(a(b(b(b(b(x1)))))))))

Proof:
 Open