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


--------------------------------------------------------------------------------


MAYBE

Problem:
 +(x,0()) -> x
 +(x,s(y)) -> s(+(x,y))
 *(x,0()) -> 0()
 *(x,s(y)) -> +(*(x,y),x)
 ge(x,0()) -> true()
 ge(0(),s(y)) -> false()
 ge(s(x),s(y)) -> ge(x,y)
 -(x,0()) -> x
 -(s(x),s(y)) -> -(x,y)
 fact(x) -> iffact(x,ge(x,s(s(0()))))
 iffact(x,true()) -> *(x,fact(-(x,s(0()))))
 iffact(x,false()) -> s(0())

Proof:
 Open