Input TRS: 1: f(f(a(),a()),x) -> f(x,f(f(a(),f(a(),a())),a())) Number of strict rules: 1 Direct Order(PosReal,>,Poly) ... failed. Freezing f 1: f❆2_a(a(),x) -> f(x,f❆2_a(f❆1_a(a()),a())) 2: f(a(),_1) ->= f❆1_a(_1) 3: f(f❆1_a(_1),_2) ->= f❆2_a(_1,_2) Number of strict rules: 1 Direct Order(PosReal,>,Poly) ... failed. Dependency Pairs: #1: #f(f❆1_a(_1),_2) ->? #f❆2_a(_1,_2) #2: #f❆2_a(a(),x) -> #f(x,f❆2_a(f❆1_a(a()),a())) #3: #f❆2_a(a(),x) -> #f❆2_a(f❆1_a(a()),a()) Number of SCCs: 1, DPs: 2, edges: 2 SCC { #1 #2 } Removing DPs: Order(PosReal,>,Sum)... succeeded. a() weight: 0 f❆2_a(x1,x2) weight: (/ 1 4) #f❆2_a(x1,x2) weight: (/ 1 2) + x2 f(x1,x2) weight: 0 #f(x1,x2) weight: x1 + x2 f❆1_a(x1) weight: (/ 3 4) Usable rules: { } Removed DPs: #1 #2 Number of SCCs: 0, DPs: 0, edges: 0 YES