MAYBE We are left with following problem, upon which TcT provides the certificate MAYBE. Strict Trs: { a(b(x1)) -> b(b(a(x1))) , c(b(x1)) -> b(c(c(x1))) } Obligation: innermost runtime complexity Answer: MAYBE We add following dependency tuples: Strict DPs: { a^#(b(x1)) -> c_1(a^#(x1)) , c^#(b(x1)) -> c_2(c^#(c(x1)), c^#(x1)) } and mark the set of starting terms. We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { a^#(b(x1)) -> c_1(a^#(x1)) , c^#(b(x1)) -> c_2(c^#(c(x1)), c^#(x1)) } Weak Trs: { a(b(x1)) -> b(b(a(x1))) , c(b(x1)) -> b(c(c(x1))) } Obligation: innermost runtime complexity Answer: MAYBE We replace rewrite rules by usable rules: Weak Usable Rules: { c(b(x1)) -> b(c(c(x1))) } We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { a^#(b(x1)) -> c_1(a^#(x1)) , c^#(b(x1)) -> c_2(c^#(c(x1)), c^#(x1)) } Weak Trs: { c(b(x1)) -> b(c(c(x1))) } Obligation: innermost runtime complexity Answer: MAYBE The input cannot be shown compatible Arrrr..