/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:
 f(x,s(y)) -> f(d(x),y)
 f(x,0()) -> f(s(0()),x)
 d(0()) -> 0()
 d(s(x)) -> s(s(d(x)))

Proof:
 Open