MAYBE We are left with following problem, upon which TcT provides the certificate MAYBE. Strict Trs: { div(x, y) -> quot(x, y, y) , div(0(), y) -> 0() , quot(x, 0(), s(z)) -> s(div(x, s(z))) , quot(0(), s(y), z) -> 0() , quot(s(x), s(y), z) -> quot(x, y, z) } Obligation: innermost runtime complexity Answer: MAYBE The input cannot be shown compatible Arrrr..