*** 1 Progress [(O(1),O(n^2))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: plus(x,0()) -> x plus(x,s(y)) -> s(plus(x,y)) times(x,0()) -> 0() times(x,plus(y,s(z))) -> plus(times(x,plus(y,times(s(z),0()))),times(x,s(z))) times(x,s(y)) -> plus(times(x,y),x) Weak DP Rules: Weak TRS Rules: Signature: {plus/2,times/2} / {0/0,s/1} Obligation: Innermost basic terms: {plus,times}/{0,s} Applied Processor: InnermostRuleRemoval Proof: Arguments of following rules are not normal-forms. times(x,plus(y,s(z))) -> plus(times(x,plus(y,times(s(z),0()))),times(x,s(z))) All above mentioned rules can be savely removed. *** 1.1 Progress [(O(1),O(n^2))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: plus(x,0()) -> x plus(x,s(y)) -> s(plus(x,y)) times(x,0()) -> 0() times(x,s(y)) -> plus(times(x,y),x) Weak DP Rules: Weak TRS Rules: Signature: {plus/2,times/2} / {0/0,s/1} Obligation: Innermost basic terms: {plus,times}/{0,s} 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(plus) = {1}, uargs(s) = {1} Following symbols are considered usable: {} TcT has computed the following interpretation: p(0) = [0] p(plus) = [1] x1 + [0] p(s) = [1] x1 + [1] p(times) = [12] x1 + [8] x2 + [3] Following rules are strictly oriented: times(x,0()) = [12] x + [3] > [0] = 0() times(x,s(y)) = [12] x + [8] y + [11] > [12] x + [8] y + [3] = plus(times(x,y),x) Following rules are (at-least) weakly oriented: plus(x,0()) = [1] x + [0] >= [1] x + [0] = x plus(x,s(y)) = [1] x + [0] >= [1] x + [1] = s(plus(x,y)) Further, it can be verified that all rules not oriented are covered by the weightgap condition. *** 1.1.1 Progress [(O(1),O(n^2))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: plus(x,0()) -> x plus(x,s(y)) -> s(plus(x,y)) Weak DP Rules: Weak TRS Rules: times(x,0()) -> 0() times(x,s(y)) -> plus(times(x,y),x) Signature: {plus/2,times/2} / {0/0,s/1} Obligation: Innermost basic terms: {plus,times}/{0,s} 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(plus) = {1}, uargs(s) = {1} Following symbols are considered usable: {} TcT has computed the following interpretation: p(0) = [2] p(plus) = [1] x1 + [2] p(s) = [1] x1 + [1] p(times) = [1] x1 + [4] x2 + [8] Following rules are strictly oriented: plus(x,0()) = [1] x + [2] > [1] x + [0] = x Following rules are (at-least) weakly oriented: plus(x,s(y)) = [1] x + [2] >= [1] x + [3] = s(plus(x,y)) times(x,0()) = [1] x + [16] >= [2] = 0() times(x,s(y)) = [1] x + [4] y + [12] >= [1] x + [4] y + [10] = plus(times(x,y),x) Further, it can be verified that all rules not oriented are covered by the weightgap condition. *** 1.1.1.1 Progress [(O(1),O(n^2))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: plus(x,s(y)) -> s(plus(x,y)) Weak DP Rules: Weak TRS Rules: plus(x,0()) -> x times(x,0()) -> 0() times(x,s(y)) -> plus(times(x,y),x) Signature: {plus/2,times/2} / {0/0,s/1} Obligation: Innermost basic terms: {plus,times}/{0,s} Applied Processor: NaturalPI {shape = Mixed 2, restrict = Restrict, uargs = UArgs, urules = URules, selector = Just any strict-rules, greedy = NoGreedy} Proof: We apply a polynomial interpretation of kind constructor-based(mixed(2)): The following argument positions are considered usable: uargs(plus) = {1}, uargs(s) = {1} Following symbols are considered usable: {plus,times} TcT has computed the following interpretation: p(0) = 0 p(plus) = 3 + x1 + 2*x2 p(s) = 1 + x1 p(times) = 2*x1*x2 + x2 + 2*x2^2 Following rules are strictly oriented: plus(x,s(y)) = 5 + x + 2*y > 4 + x + 2*y = s(plus(x,y)) Following rules are (at-least) weakly oriented: plus(x,0()) = 3 + x >= x = x times(x,0()) = 0 >= 0 = 0() times(x,s(y)) = 3 + 2*x + 2*x*y + 5*y + 2*y^2 >= 3 + 2*x + 2*x*y + y + 2*y^2 = plus(times(x,y),x) *** 1.1.1.1.1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: Weak DP Rules: Weak TRS Rules: plus(x,0()) -> x plus(x,s(y)) -> s(plus(x,y)) times(x,0()) -> 0() times(x,s(y)) -> plus(times(x,y),x) Signature: {plus/2,times/2} / {0/0,s/1} Obligation: Innermost basic terms: {plus,times}/{0,s} Applied Processor: EmptyProcessor Proof: The problem is already closed. The intended complexity is O(1).