NO Prover = TRS(tech=GUIDED_UNF, nb_unfoldings=unlimited, unfold_variables=true, strategy=LEFTMOST_NE) ** BEGIN proof argument ** The following rule was generated while unfolding the analyzed TRS: [iteration = 1] h(_0,g(_0,s(_0))) -> h(0,g(_0,s(_0))) Let l be the left-hand side and r be the right-hand side of this rule. Let p = epsilon, theta1 = {_0->0} and theta2 = {}. We have r|p = h(0,g(_0,s(_0))) and theta2(theta1(l)) = theta1(r|p). Hence, the term theta1(l) = h(0,g(0,s(0))) loops w.r.t. the analyzed TRS. ** 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! ## Searching for a loop by unfolding (unfolding of variable subterms: ON)... # Iteration 0: no loop detected, 2 unfolded rules generated. # Iteration 1: loop detected, 1 unfolded rule generated. Here is the successful unfolding. Let IR be the TRS under analysis. L0 = [h^#(_0,_1) -> f^#(_0,s(_0),_1), f^#(_2,_3,g(_2,_3)) -> h^#(0,g(_2,_3))] is in U_IR^0. We merge the first and the second rule of L0. ==> L1 = h^#(0,g(0,s(0))) -> h^#(0,g(0,s(0))) is in U_IR^1. ** END proof description ** Proof stopped at iteration 1 Number of unfolded rules generated by this proof = 3 Number of unfolded rules generated by all the parallel proofs = 3