We are left with following problem, upon which TcT provides the certificate YES(O(1),O(1)). Strict Trs: { f(s(x)) -> f(g(x, x)) , g(0(), 1()) -> s(0()) , 0() -> 1() } Obligation: innermost runtime complexity Answer: YES(O(1),O(1)) Arguments of following rules are not normal-forms: { g(0(), 1()) -> s(0()) } All above mentioned rules can be savely removed. We are left with following problem, upon which TcT provides the certificate YES(O(1),O(1)). Strict Trs: { f(s(x)) -> f(g(x, x)) , 0() -> 1() } Obligation: innermost runtime complexity Answer: YES(O(1),O(1)) We add the following weak dependency pairs: Strict DPs: { f^#(s(x)) -> c_1(f^#(g(x, x))) , 0^#() -> c_2() } and mark the set of starting terms. We are left with following problem, upon which TcT provides the certificate YES(O(1),O(1)). Strict DPs: { f^#(s(x)) -> c_1(f^#(g(x, x))) , 0^#() -> c_2() } Strict Trs: { f(s(x)) -> f(g(x, x)) , 0() -> 1() } Obligation: innermost runtime complexity Answer: YES(O(1),O(1)) No rule is usable, rules are removed from the input problem. We are left with following problem, upon which TcT provides the certificate YES(O(1),O(1)). Strict DPs: { f^#(s(x)) -> c_1(f^#(g(x, x))) , 0^#() -> c_2() } Obligation: innermost runtime complexity Answer: YES(O(1),O(1)) The weightgap principle applies (using the following constant growth matrix-interpretation) The following argument positions are usable: none TcT has computed the following constructor-restricted matrix interpretation. [s](x1) = [0] [0] [g](x1, x2) = [0] [0] [f^#](x1) = [0] [0] [c_1](x1) = [0] [0] [0^#] = [1] [0] [c_2] = [0] [0] The order satisfies the following ordering constraints: [f^#(s(x))] = [0] [0] >= [0] [0] = [c_1(f^#(g(x, x)))] [0^#()] = [1] [0] > [0] [0] = [c_2()] Further, it can be verified that all rules not oriented are covered by the weightgap condition. We are left with following problem, upon which TcT provides the certificate YES(O(1),O(1)). Strict DPs: { f^#(s(x)) -> c_1(f^#(g(x, x))) } Weak DPs: { 0^#() -> c_2() } Obligation: innermost runtime complexity Answer: YES(O(1),O(1)) We estimate the number of application of {1} by applications of Pre({1}) = {}. Here rules are labeled as follows: DPs: { 1: f^#(s(x)) -> c_1(f^#(g(x, x))) , 2: 0^#() -> c_2() } We are left with following problem, upon which TcT provides the certificate YES(O(1),O(1)). Weak DPs: { f^#(s(x)) -> c_1(f^#(g(x, x))) , 0^#() -> c_2() } Obligation: innermost runtime complexity Answer: YES(O(1),O(1)) The following weak DPs constitute a sub-graph of the DG that is closed under successors. The DPs are removed. { f^#(s(x)) -> c_1(f^#(g(x, x))) , 0^#() -> c_2() } We are left with following problem, upon which TcT provides the certificate YES(O(1),O(1)). Rules: Empty Obligation: innermost runtime complexity Answer: YES(O(1),O(1)) Empty rules are trivially bounded Hurray, we answered YES(O(1),O(1))