*** 1 Progress [(O(1),O(n^1))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: ackin(s(X),s(Y)) -> u21(ackin(s(X),Y),X) u21(ackout(X),Y) -> u22(ackin(Y,X)) Weak DP Rules: Weak TRS Rules: Signature: {ackin/2,u21/2} / {ackout/1,s/1,u22/1} Obligation: Innermost basic terms: {ackin,u21}/{ackout,s,u22} Applied Processor: NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Just any strict-rules, greedy = NoGreedy} Proof: We apply a matrix interpretation of kind constructor based matrix interpretation: The following argument positions are considered usable: uargs(u21) = {1}, uargs(u22) = {1} Following symbols are considered usable: {ackin,u21} TcT has computed the following interpretation: p(ackin) = [0] p(ackout) = [1] p(s) = [2] p(u21) = [8] x1 + [0] p(u22) = [1] x1 + [2] Following rules are strictly oriented: u21(ackout(X),Y) = [8] > [2] = u22(ackin(Y,X)) Following rules are (at-least) weakly oriented: ackin(s(X),s(Y)) = [0] >= [0] = u21(ackin(s(X),Y),X) *** 1.1 Progress [(O(1),O(n^1))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: ackin(s(X),s(Y)) -> u21(ackin(s(X),Y),X) Weak DP Rules: Weak TRS Rules: u21(ackout(X),Y) -> u22(ackin(Y,X)) Signature: {ackin/2,u21/2} / {ackout/1,s/1,u22/1} Obligation: Innermost basic terms: {ackin,u21}/{ackout,s,u22} 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(u21) = {1}, uargs(u22) = {1} Following symbols are considered usable: {} TcT has computed the following interpretation: p(ackin) = [1] x2 + [0] p(ackout) = [1] x1 + [0] p(s) = [1] x1 + [1] p(u21) = [1] x1 + [0] p(u22) = [1] x1 + [0] Following rules are strictly oriented: ackin(s(X),s(Y)) = [1] Y + [1] > [1] Y + [0] = u21(ackin(s(X),Y),X) Following rules are (at-least) weakly oriented: u21(ackout(X),Y) = [1] X + [0] >= [1] X + [0] = u22(ackin(Y,X)) Further, it can be verified that all rules not oriented are covered by the weightgap condition. *** 1.1.1 Progress [(O(1),O(1))] *** Considered Problem: Strict DP Rules: Strict TRS Rules: Weak DP Rules: Weak TRS Rules: ackin(s(X),s(Y)) -> u21(ackin(s(X),Y),X) u21(ackout(X),Y) -> u22(ackin(Y,X)) Signature: {ackin/2,u21/2} / {ackout/1,s/1,u22/1} Obligation: Innermost basic terms: {ackin,u21}/{ackout,s,u22} Applied Processor: EmptyProcessor Proof: The problem is already closed. The intended complexity is O(1).