/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:
 a__from(X) -> cons(mark(X),from(s(X)))
 a__sel(0(),cons(X,Y)) -> mark(X)
 a__sel(s(X),cons(Y,Z)) -> a__sel(mark(X),mark(Z))
 mark(from(X)) -> a__from(mark(X))
 mark(sel(X1,X2)) -> a__sel(mark(X1),mark(X2))
 mark(cons(X1,X2)) -> cons(mark(X1),X2)
 mark(s(X)) -> s(mark(X))
 mark(0()) -> 0()
 a__from(X) -> from(X)
 a__sel(X1,X2) -> sel(X1,X2)

Proof:
 Open