/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:
 plus(x,y) -> plusIter(x,y,0())
 plusIter(x,y,z) -> ifPlus(le(x,z),x,y,z)
 ifPlus(true(),x,y,z) -> y
 ifPlus(false(),x,y,z) -> plusIter(x,s(y),s(z))
 le(s(x),0()) -> false()
 le(0(),y) -> true()
 le(s(x),s(y)) -> le(x,y)
 sum(xs) -> sumIter(xs,0())
 sumIter(xs,x) -> ifSum(isempty(xs),xs,x,plus(x,head(xs)))
 ifSum(true(),xs,x,y) -> x
 ifSum(false(),xs,x,y) -> sumIter(tail(xs),y)
 isempty(nil()) -> true()
 isempty(cons(x,xs)) -> false()
 head(nil()) -> error()
 head(cons(x,xs)) -> x
 tail(nil()) -> nil()
 tail(cons(x,xs)) -> xs
 a() -> b()
 a() -> c()

Proof:
 Open