Input TRS: 1: f(x,y) -> f(x,x) 2: f(s(x),y) -> f(y,x) Number of strict rules: 2 Direct Order(PosReal,>,Poly) ... failed. Freezing ... failed. Dependency Pairs: #1: #f(s(x),y) -> #f(y,x) #2: #f(x,y) -> #f(x,x) Number of SCCs: 1, DPs: 2, edges: 4 SCC { #1 #2 } Removing DPs: Order(PosReal,>,Sum)... Order(PosReal,>,Max)... QLPOpS... Order(PosReal,>,MaxSum)... QWPOpS(PosReal,>,MaxSum)... Order(PosReal,>,Sum-Sum; PosReal,≥,Sum-Sum)... Order(PosReal,>,Sum-Sum; NegReal,≥,Sum)... Order(PosReal,>,MaxSum-Sum; NegReal,≥,Sum)... failed. Removing edges: failed. Finding a loop... found. #f(x_{1},y) -#2-> #f(x_{1},x_{1}) --->* #f(x_{1},x_{1}) Looping with: [ y := x_{1}; x_{1} := x_{1}; ] NO