TIMEOUT We are left with following problem, upon which TcT provides the certificate TIMEOUT. Strict Trs: { -(x, 0()) -> x , -(s(x), s(y)) -> -(x, y) , +(0(), y) -> y , +(s(x), y) -> s(+(x, y)) , *(x, 0()) -> 0() , *(x, s(y)) -> +(x, *(x, y)) , p(s(x)) -> x , f(s(x)) -> f(-(p(*(s(x), s(x))), *(s(x), s(x)))) } Obligation: innermost runtime complexity Answer: TIMEOUT Computation stopped due to timeout after 60.0 seconds. Arrrr..