Input TRS: 1: f(f(x)) -> f(g(f(x),x)) 2: f(f(x)) -> f(h(f(x),f(x))) 3: g(x,y) -> y 4: h(x,x) -> g(x,0()) Number of strict rules: 4 Direct Order(PosReal,>,Poly) ... failed. Freezing ... failed. Dependency Pairs: #1: #f(f(x)) -> #f(h(f(x),f(x))) #2: #f(f(x)) -> #h(f(x),f(x)) #3: #f(f(x)) -> #f(g(f(x),x)) #4: #f(f(x)) -> #g(f(x),x) #5: #h(x,x) -> #g(x,0()) Number of SCCs: 1, DPs: 2, edges: 4 SCC { #1 #3 } Removing DPs: Order(PosReal,>,Sum)... succeeded. h(x1,x2) weight: x1 f(x1) weight: (/ 1 2) + x1 0() weight: 0 #h(x1,x2) weight: 0 #f(x1) weight: x1 #g(x1,x2) weight: 0 g(x1,x2) weight: x2 Usable rules: { 1..4 } Removed DPs: #3 Number of SCCs: 1, DPs: 1, edges: 1 SCC { #1 } Removing DPs: Order(PosReal,>,Sum)... succeeded. h(x1,x2) weight: (/ 1 4) f(x1) weight: (/ 1 2) + x1 0() weight: 0 #h(x1,x2) weight: 0 #f(x1) weight: x1 #g(x1,x2) weight: 0 g(x1,x2) weight: x2 Usable rules: { 3 4 } Removed DPs: #1 Number of SCCs: 0, DPs: 0, edges: 0 YES