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 = [rev^#(.(_0,_1)) -> rev^#(_1)] TRS = {rev(nil) -> nil, rev(.(_0,_1)) -> ++(rev(_1),.(_0,nil)), car(.(_0,_1)) -> _0, cdr(.(_0,_1)) -> _1, null(nil) -> true, null(.(_0,_1)) -> false, ++(nil,_0) -> _0, ++(.(_0,_1),_2) -> .(_0,++(_1,_2))} ## Trying with homeomorphic embeddings... Success! This DP problem is finite. ## DP problem: Dependency pairs = [++^#(.(_0,_1),_2) -> ++^#(_1,_2)] TRS = {rev(nil) -> nil, rev(.(_0,_1)) -> ++(rev(_1),.(_0,nil)), car(.(_0,_1)) -> _0, cdr(.(_0,_1)) -> _1, null(nil) -> true, null(.(_0,_1)) -> false, ++(nil,_0) -> _0, ++(.(_0,_1),_2) -> .(_0,++(_1,_2))} ## 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