TIMEOUT We are left with following problem, upon which TcT provides the certificate TIMEOUT. Strict Trs: { p(0()) -> 0() , p(s(x)) -> x , le(0(), y) -> true() , le(s(x), 0()) -> false() , le(s(x), s(y)) -> le(x, y) , minus(x, y) -> if(le(x, y), x, y) , if(true(), x, y) -> 0() , if(false(), x, y) -> s(minus(p(x), y)) } Obligation: innermost runtime complexity Answer: TIMEOUT Computation stopped due to timeout after 10.0 seconds. Arrrr..