MAYBE We are left with following problem, upon which TcT provides the certificate MAYBE. Strict Trs: { a(b(x1)) -> x1 , a(b(c(x1))) -> b(c(b(c(a(a(b(x1))))))) } Obligation: innermost runtime complexity Answer: MAYBE We add following dependency tuples: Strict DPs: { a^#(b(x1)) -> c_1() , a^#(b(c(x1))) -> c_2(a^#(a(b(x1))), a^#(b(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^#(b(c(x1))) -> c_2(a^#(a(b(x1))), a^#(b(x1))) } Weak Trs: { a(b(x1)) -> x1 , a(b(c(x1))) -> b(c(b(c(a(a(b(x1))))))) } Obligation: innermost runtime complexity Answer: MAYBE We estimate the number of application of {1} by applications of Pre({1}) = {2}. Here rules are labeled as follows: DPs: { 1: a^#(b(x1)) -> c_1() , 2: a^#(b(c(x1))) -> c_2(a^#(a(b(x1))), a^#(b(x1))) } We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { a^#(b(c(x1))) -> c_2(a^#(a(b(x1))), a^#(b(x1))) } Weak DPs: { a^#(b(x1)) -> c_1() } Weak Trs: { a(b(x1)) -> x1 , a(b(c(x1))) -> b(c(b(c(a(a(b(x1))))))) } 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. { a^#(b(x1)) -> c_1() } We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { a^#(b(c(x1))) -> c_2(a^#(a(b(x1))), a^#(b(x1))) } Weak Trs: { a(b(x1)) -> x1 , a(b(c(x1))) -> b(c(b(c(a(a(b(x1))))))) } Obligation: innermost runtime complexity Answer: MAYBE The input cannot be shown compatible Arrrr..