YES Prover = TRS(tech=GUIDED_UNF_TRIPLES, nb_unfoldings=unlimited, unfold_variables=false, max_nb_coefficients=12, max_nb_unfolded_rules=-1, strategy=LEFTMOST_NE) ** 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 = [f^#(+(_0,_1),_2) -> f^#(_0,_2), f^#(+(_0,_1),_2) -> f^#(_1,_2)] TRS = {+(a,b) -> +(b,a), +(a,+(b,_0)) -> +(b,+(a,_0)), +(+(_0,_1),_2) -> +(_0,+(_1,_2)), f(a,_0) -> a, f(b,_0) -> b, f(+(_0,_1),_2) -> +(f(_0,_2),f(_1,_2))} ## Trying with homeomorphic embeddings... Success! This DP problem is finite. ## DP problem: Dependency pairs = [+^#(+(_0,_1),_2) -> +^#(_0,+(_1,_2)), +^#(+(_0,_1),_2) -> +^#(_1,_2)] TRS = {+(a,b) -> +(b,a), +(a,+(b,_0)) -> +(b,+(a,_0)), +(+(_0,_1),_2) -> +(_0,+(_1,_2)), f(a,_0) -> a, f(b,_0) -> b, f(+(_0,_1),_2) -> +(f(_0,_2),f(_1,_2))} ## Trying with homeomorphic embeddings... Failed! ## Trying with polynomial interpretations... The constraints are satisfied by the polynomials: {+(_0,_1):[_0 + _1], a:[1], f(_0,_1):[_0 * _1], b:[1], +^#(_0,_1):[_0]} for all instantiations of the variables with values greater than or equal to mu = 1. This DP problem is finite. ## DP problem: Dependency pairs = [+^#(a,+(b,_0)) -> +^#(a,_0)] TRS = {+(a,b) -> +(b,a), +(a,+(b,_0)) -> +(b,+(a,_0)), +(+(_0,_1),_2) -> +(_0,+(_1,_2)), f(a,_0) -> a, f(b,_0) -> b, f(+(_0,_1),_2) -> +(f(_0,_2),f(_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 = 695