*** 1 Progress [(O(1),O(n^1))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: g(f(x),y) -> f(h(x,y)) h(x,y) -> g(x,f(y)) Weak DP Rules: Weak TRS Rules: Signature: {g/2,h/2} / {f/1} Obligation: Innermost basic terms: {g,h}/{f} Applied Processor: WeightGap {wgDimension = 1, wgDegree = 1, wgKind = Algebraic, wgUArgs = UArgs, wgOn = WgOnAny} Proof: The weightgap principle applies using the following nonconstant growth matrix-interpretation: We apply a matrix interpretation of kind constructor based matrix interpretation: The following argument positions are considered usable: uargs(f) = {1} Following symbols are considered usable: {} TcT has computed the following interpretation: p(f) = [1] x1 + [5] p(g) = [4] x1 + [1] x2 + [0] p(h) = [4] x1 + [1] x2 + [14] Following rules are strictly oriented: g(f(x),y) = [4] x + [1] y + [20] > [4] x + [1] y + [19] = f(h(x,y)) h(x,y) = [4] x + [1] y + [14] > [4] x + [1] y + [5] = g(x,f(y)) Following rules are (at-least) weakly oriented: Further, it can be verified that all rules not oriented are covered by the weightgap condition. *** 1.1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: Weak DP Rules: Weak TRS Rules: g(f(x),y) -> f(h(x,y)) h(x,y) -> g(x,f(y)) Signature: {g/2,h/2} / {f/1} Obligation: Innermost basic terms: {g,h}/{f} Applied Processor: EmptyProcessor Proof: The problem is already closed. The intended complexity is O(1).