YES Input TRS: 1: +(x,0()) -> x 2: +(x,s(y)) -> s(+(x,y)) 3: +(0(),y) -> y 4: +(s(x),y) -> s(+(x,y)) 5: +(x,+(y,z)) -> +(+(x,y),z) 6: f(g(f(x))) -> f(h(s(0()),x)) 7: f(g(h(x,y))) -> f(h(s(x),y)) 8: f(h(x,h(y,z))) -> f(h(+(x,y),z)) Number of strict rules: 8 Direct POLO(bPol) ... removes: 8 1 3 5 7 6 2 h w: 2 * x1 + 2 * x2 + 15927 s w: x1 + 20538 f w: 2 * x1 + 15927 0 w: 1 + w: x1 + 2 * x2 + 15922 g w: 2 * x1 + 25153 Number of strict rules: 1 Direct POLO(bPol) ... failed. Uncurrying ... failed. Dependency Pairs: #1: #+(s(x),y) -> #+(x,y) Number of SCCs: 1, DPs: 1 SCC { #1 } POLO(Sum)... succeeded. h w: 0 s w: x1 + 1 f w: 0 0 w: 0 + w: 0 g w: 0 #+ w: x1 USABLE RULES: { } Removed DPs: #1 Number of SCCs: 0, DPs: 0