YES Prover = TRS(tech=PATTERN_RULES, nb_unfoldings=unlimited, max_nb_unfolded_rules=200) ** BEGIN proof argument ** All the DP problems were proved finite. As all the involved DP processors are sound, the TRS under analysis terminates. ** END proof argument ** ** BEGIN proof description ** ## Searching for a generalized rewrite rule (a rule whose right-hand side contains a variable that does not occur in the left-hand side)... No generalized rewrite rule found! ## Applying the DP framework... ## Round 1: ## DP problem: Dependency pairs = [mark^#(inf(_0)) -> mark^#(_0), mark^#(take(_0,_1)) -> mark^#(_0), mark^#(take(_0,_1)) -> mark^#(_1), mark^#(length(_0)) -> mark^#(_0)] TRS = {a__eq(0,0) -> true, a__eq(s(_0),s(_1)) -> a__eq(_0,_1), a__eq(_0,_1) -> false, a__inf(_0) -> cons(_0,inf(s(_0))), a__take(0,_0) -> nil, a__take(s(_0),cons(_1,_2)) -> cons(_1,take(_0,_2)), a__length(nil) -> 0, a__length(cons(_0,_1)) -> s(length(_1)), mark(eq(_0,_1)) -> a__eq(_0,_1), mark(inf(_0)) -> a__inf(mark(_0)), mark(take(_0,_1)) -> a__take(mark(_0),mark(_1)), mark(length(_0)) -> a__length(mark(_0)), mark(0) -> 0, mark(true) -> true, mark(s(_0)) -> s(_0), mark(false) -> false, mark(cons(_0,_1)) -> cons(_0,_1), mark(nil) -> nil, a__eq(_0,_1) -> eq(_0,_1), a__inf(_0) -> inf(_0), a__take(_0,_1) -> take(_0,_1), a__length(_0) -> length(_0)} ## Trying with homeomorphic embeddings... Success! This DP problem is finite. ## DP problem: Dependency pairs = [a__eq^#(s(_0),s(_1)) -> a__eq^#(_0,_1)] TRS = {a__eq(0,0) -> true, a__eq(s(_0),s(_1)) -> a__eq(_0,_1), a__eq(_0,_1) -> false, a__inf(_0) -> cons(_0,inf(s(_0))), a__take(0,_0) -> nil, a__take(s(_0),cons(_1,_2)) -> cons(_1,take(_0,_2)), a__length(nil) -> 0, a__length(cons(_0,_1)) -> s(length(_1)), mark(eq(_0,_1)) -> a__eq(_0,_1), mark(inf(_0)) -> a__inf(mark(_0)), mark(take(_0,_1)) -> a__take(mark(_0),mark(_1)), mark(length(_0)) -> a__length(mark(_0)), mark(0) -> 0, mark(true) -> true, mark(s(_0)) -> s(_0), mark(false) -> false, mark(cons(_0,_1)) -> cons(_0,_1), mark(nil) -> nil, a__eq(_0,_1) -> eq(_0,_1), a__inf(_0) -> inf(_0), a__take(_0,_1) -> take(_0,_1), a__length(_0) -> length(_0)} ## Trying with homeomorphic embeddings... Success! This DP problem is finite. ** END proof description ** Proof stopped at iteration 0 Number of unfolded rules generated by this proof = 0 Number of unfolded rules generated by all the parallel proofs = 0