MAYBE We are left with following problem, upon which TcT provides the certificate MAYBE. Strict Trs: { f(s(x), y) -> f(x, f(x, y)) , f(0(), y) -> c(y, y) } Obligation: innermost runtime complexity Answer: MAYBE We add following dependency tuples: Strict DPs: { f^#(s(x), y) -> c_1(f^#(x, f(x, y)), f^#(x, y)) , f^#(0(), y) -> c_2() } and mark the set of starting terms. We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { f^#(s(x), y) -> c_1(f^#(x, f(x, y)), f^#(x, y)) , f^#(0(), y) -> c_2() } Weak Trs: { f(s(x), y) -> f(x, f(x, y)) , f(0(), y) -> c(y, y) } Obligation: innermost runtime complexity Answer: MAYBE We estimate the number of application of {2} by applications of Pre({2}) = {1}. Here rules are labeled as follows: DPs: { 1: f^#(s(x), y) -> c_1(f^#(x, f(x, y)), f^#(x, y)) , 2: f^#(0(), y) -> c_2() } We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { f^#(s(x), y) -> c_1(f^#(x, f(x, y)), f^#(x, y)) } Weak DPs: { f^#(0(), y) -> c_2() } Weak Trs: { f(s(x), y) -> f(x, f(x, y)) , f(0(), y) -> c(y, y) } Obligation: innermost runtime complexity Answer: MAYBE The following weak DPs constitute a sub-graph of the DG that is closed under successors. The DPs are removed. { f^#(0(), y) -> c_2() } We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { f^#(s(x), y) -> c_1(f^#(x, f(x, y)), f^#(x, y)) } Weak Trs: { f(s(x), y) -> f(x, f(x, y)) , f(0(), y) -> c(y, y) } Obligation: innermost runtime complexity Answer: MAYBE The input cannot be shown compatible Arrrr..