MAYBE We are left with following problem, upon which TcT provides the certificate MAYBE. Strict Trs: { *(x, +(y, z)) -> +(*(x, y), *(x, z)) , *(x, 1()) -> x , *(+(x, y), z) -> +(*(x, z), *(y, z)) , *(1(), y) -> y } Obligation: innermost runtime complexity Answer: MAYBE We add following weak dependency pairs: Strict DPs: { *^#(x, +(y, z)) -> c_1(*^#(x, y), *^#(x, z)) , *^#(x, 1()) -> c_2() , *^#(+(x, y), z) -> c_3(*^#(x, z), *^#(y, z)) , *^#(1(), y) -> c_4() } and mark the set of starting terms. We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { *^#(x, +(y, z)) -> c_1(*^#(x, y), *^#(x, z)) , *^#(x, 1()) -> c_2() , *^#(+(x, y), z) -> c_3(*^#(x, z), *^#(y, z)) , *^#(1(), y) -> c_4() } Strict Trs: { *(x, +(y, z)) -> +(*(x, y), *(x, z)) , *(x, 1()) -> x , *(+(x, y), z) -> +(*(x, z), *(y, z)) , *(1(), y) -> y } Obligation: innermost runtime complexity Answer: MAYBE No rule is usable, rules are removed from the input problem. We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { *^#(x, +(y, z)) -> c_1(*^#(x, y), *^#(x, z)) , *^#(x, 1()) -> c_2() , *^#(+(x, y), z) -> c_3(*^#(x, z), *^#(y, z)) , *^#(1(), y) -> c_4() } Obligation: innermost runtime complexity Answer: MAYBE The weightgap principle applies (using the following constant growth matrix-interpretation) The following argument positions are usable: Uargs(c_1) = {1, 2}, Uargs(c_3) = {1, 2} TcT has computed following constructor-restricted matrix interpretation. [+](x1, x2) = [1] x1 + [1] x2 + [1] [1] = [2] [*^#](x1, x2) = [1] [c_1](x1, x2) = [1] x1 + [1] x2 + [1] [c_2] = [0] [c_3](x1, x2) = [1] x1 + [1] x2 + [1] [c_4] = [0] This order satisfies following ordering constraints: 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 MAYBE. Strict DPs: { *^#(x, +(y, z)) -> c_1(*^#(x, y), *^#(x, z)) , *^#(+(x, y), z) -> c_3(*^#(x, z), *^#(y, z)) } Weak DPs: { *^#(x, 1()) -> c_2() , *^#(1(), y) -> c_4() } 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. { *^#(x, 1()) -> c_2() , *^#(1(), y) -> c_4() } We are left with following problem, upon which TcT provides the certificate MAYBE. Strict DPs: { *^#(x, +(y, z)) -> c_1(*^#(x, y), *^#(x, z)) , *^#(+(x, y), z) -> c_3(*^#(x, z), *^#(y, z)) } Obligation: innermost runtime complexity Answer: MAYBE The input cannot be shown compatible Arrrr..