YES Input TRS: 1: f(0()) -> s(0()) 2: f(s(0())) -> s(s(0())) 3: f(s(0())) -> *(s(s(0())),f(0())) 4: f(+(x,s(0()))) -> +(s(s(0())),f(x)) 5: f(+(x,y)) -> *(f(x),f(y)) Number of strict rules: 5 Direct POLO(bPol) ... removes: 1 5 2 s w: x1 f w: x1 + 8946 0 w: 0 + w: x1 + x2 + 8947 * w: x1 + x2 Number of strict rules: 2 Direct POLO(bPol) ... removes: 4 s w: x1 f w: 2 * x1 + 18588 0 w: 0 + w: 2 * x1 + 2 * x2 + 18589 * w: x1 + x2 Number of strict rules: 1 Direct POLO(bPol) ... failed. Uncurrying f 3: f^1_s(0()) -> *(s(s(0())),f^1_0()) 6: f(0()) ->= f^1_0() 7: f(s(_1)) ->= f^1_s(_1) Number of strict rules: 1 Direct POLO(bPol) ... removes: 3 7 6 s w: 2 * x1 + 2438 f w: 2 * x1 + 9762 0 w: 1 + w: x1 + x2 f^1_0 w: 1 f^1_s w: 2 * x1 + 14637 * w: 2 * x1 + 2 * x2 Number of strict rules: 0