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 = [i^#(:(_0,_1)) -> :^#(_1,_0), :^#(i(_0),:(_1,:(_0,_2))) -> i^#(_2), :^#(i(_0),:(_1,_0)) -> i^#(_1), :^#(_0,:(_1,:(i(_0),_2))) -> i^#(_2), :^#(_0,:(_1,i(_0))) -> i^#(_1), :^#(e,_0) -> i^#(_0), :^#(:(_0,_1),_2) -> i^#(_1), :^#(:(_0,_1),_2) -> :^#(_0,:(_2,i(_1))), :^#(:(_0,_1),_2) -> :^#(_2,i(_1)), :^#(_0,:(_1,:(i(_0),_2))) -> :^#(i(_2),_1), :^#(i(_0),:(_1,:(_0,_2))) -> :^#(i(_2),_1)] TRS = {:(_0,_0) -> e, :(_0,e) -> _0, i(:(_0,_1)) -> :(_1,_0), :(:(_0,_1),_2) -> :(_0,:(_2,i(_1))), :(e,_0) -> i(_0), i(i(_0)) -> _0, i(e) -> e, :(_0,:(_1,i(_0))) -> i(_1), :(_0,:(_1,:(i(_0),_2))) -> :(i(_2),_1), :(i(_0),:(_1,_0)) -> i(_1), :(i(_0),:(_1,:(_0,_2))) -> :(i(_2),_1)} ## Trying with homeomorphic embeddings... Failed! ## Trying with polynomial interpretations... The constraints are satisfied by the polynomials: {:(_0,_1):[_0 * _1], i(_0):[_0], e:[2], i^#(_0):[2 * _0], :^#(_0,_1):[_0 + _0 * _1]} for all instantiations of the variables with values greater than or equal to mu = 2. 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 = 239