TRS: { times(x, y) -> sum(generate(x, y)), generate(x, y) -> gen(x, y, 0()), gen(x, y, z) -> if(ge(z, x), x, y, z), if(true(), x, y, z) -> nil(), if(false(), x, y, z) -> cons(y, gen(x, y, s(z))), sum(nil()) -> 0(), sum(cons(0(), xs)) -> sum(xs), sum(cons(s(x), xs)) -> s(sum(cons(x, xs))), ge(x, 0()) -> true(), ge(0(), s(y)) -> false(), ge(s(x), s(y)) -> ge(x, y)} Fail