/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:
 minus(minus(x,y),z) -> minus(x,plus(y,z))
 minus(0(),y) -> 0()
 minus(x,0()) -> x
 minus(s(x),s(y)) -> minus(x,y)
 plus(0(),y) -> y
 plus(s(x),y) -> plus(x,s(y))
 plus(s(x),y) -> s(plus(y,x))
 zero(s(x)) -> false()
 zero(0()) -> true()
 p(s(x)) -> x
 p(0()) -> 0()
 div(x,y) -> quot(x,y,0())
 quot(s(x),s(y),z) -> quot(minus(p(ack(0(),x)),y),s(y),s(z))
 quot(0(),s(y),z) -> z
 ack(0(),x) -> s(x)
 ack(0(),x) -> plus(x,s(0()))
 ack(s(x),0()) -> ack(x,s(0()))
 ack(s(x),s(y)) -> ack(x,ack(s(x),y))

Proof:
 Open