/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:
 active(from(X)) -> mark(cons(X,from(s(X))))
 active(head(cons(X,XS))) -> mark(X)
 active(2nd(cons(X,XS))) -> mark(head(XS))
 active(take(0(),XS)) -> mark(nil())
 active(take(s(N),cons(X,XS))) -> mark(cons(X,take(N,XS)))
 active(sel(0(),cons(X,XS))) -> mark(X)
 active(sel(s(N),cons(X,XS))) -> mark(sel(N,XS))
 mark(from(X)) -> active(from(mark(X)))
 mark(cons(X1,X2)) -> active(cons(mark(X1),X2))
 mark(s(X)) -> active(s(mark(X)))
 mark(head(X)) -> active(head(mark(X)))
 mark(2nd(X)) -> active(2nd(mark(X)))
 mark(take(X1,X2)) -> active(take(mark(X1),mark(X2)))
 mark(0()) -> active(0())
 mark(nil()) -> active(nil())
 mark(sel(X1,X2)) -> active(sel(mark(X1),mark(X2)))
 from(mark(X)) -> from(X)
 from(active(X)) -> from(X)
 cons(mark(X1),X2) -> cons(X1,X2)
 cons(X1,mark(X2)) -> cons(X1,X2)
 cons(active(X1),X2) -> cons(X1,X2)
 cons(X1,active(X2)) -> cons(X1,X2)
 s(mark(X)) -> s(X)
 s(active(X)) -> s(X)
 head(mark(X)) -> head(X)
 head(active(X)) -> head(X)
 2nd(mark(X)) -> 2nd(X)
 2nd(active(X)) -> 2nd(X)
 take(mark(X1),X2) -> take(X1,X2)
 take(X1,mark(X2)) -> take(X1,X2)
 take(active(X1),X2) -> take(X1,X2)
 take(X1,active(X2)) -> take(X1,X2)
 sel(mark(X1),X2) -> sel(X1,X2)
 sel(X1,mark(X2)) -> sel(X1,X2)
 sel(active(X1),X2) -> sel(X1,X2)
 sel(X1,active(X2)) -> sel(X1,X2)

Proof:
 Open