/export/starexec/sandbox/solver/bin/starexec_run_ttt2 /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files


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failure 'Failure("No result of SMT solver - maybe due to some flag of the solver? or the solver was not found in PATH?")' in subprocess 12653
MAYBE

Problem:
 f(true(),true(),x,s(y)) -> f(isNat(x),isNat(y),s(x),double(s(y)))
 isNat(0()) -> true()
 isNat(s(x)) -> isNat(x)
 double(0()) -> 0()
 double(s(x)) -> s(s(double(x)))

Proof:
 Open