WORST_CASE(?,O(n^1)) * Step 1: WeightGap WORST_CASE(?,O(n^1)) + Considered Problem: - Strict TRS: +(x,0()) -> x +(x,s(y)) -> s(+(x,y)) +(s(x),y) -> s(+(x,y)) double(x) -> +(x,x) double(0()) -> 0() double(s(x)) -> s(s(double(x))) - Signature: {+/2,double/1} / {0/0,s/1} - Obligation: innermost runtime complexity wrt. defined symbols {+,double} and constructors {0,s} + Applied Processor: WeightGap {wgDimension = 1, wgDegree = 1, wgKind = Algebraic, wgUArgs = UArgs, wgOn = WgOnAny} + Details: 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(s) = {1} Following symbols are considered usable: all TcT has computed the following interpretation: p(+) = [7] x1 + [0] p(0) = [0] p(double) = [7] x1 + [0] p(s) = [1] x1 + [1] Following rules are strictly oriented: +(s(x),y) = [7] x + [7] > [7] x + [1] = s(+(x,y)) double(s(x)) = [7] x + [7] > [7] x + [2] = s(s(double(x))) Following rules are (at-least) weakly oriented: +(x,0()) = [7] x + [0] >= [1] x + [0] = x +(x,s(y)) = [7] x + [0] >= [7] x + [1] = s(+(x,y)) double(x) = [7] x + [0] >= [7] x + [0] = +(x,x) double(0()) = [0] >= [0] = 0() Further, it can be verified that all rules not oriented are covered by the weightgap condition. * Step 2: WeightGap WORST_CASE(?,O(n^1)) + Considered Problem: - Strict TRS: +(x,0()) -> x +(x,s(y)) -> s(+(x,y)) double(x) -> +(x,x) double(0()) -> 0() - Weak TRS: +(s(x),y) -> s(+(x,y)) double(s(x)) -> s(s(double(x))) - Signature: {+/2,double/1} / {0/0,s/1} - Obligation: innermost runtime complexity wrt. defined symbols {+,double} and constructors {0,s} + Applied Processor: WeightGap {wgDimension = 1, wgDegree = 1, wgKind = Algebraic, wgUArgs = UArgs, wgOn = WgOnAny} + Details: 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(s) = {1} Following symbols are considered usable: all TcT has computed the following interpretation: p(+) = [2] x1 + [3] x2 + [0] p(0) = [6] p(double) = [5] x1 + [1] p(s) = [1] x1 + [0] Following rules are strictly oriented: +(x,0()) = [2] x + [18] > [1] x + [0] = x double(x) = [5] x + [1] > [5] x + [0] = +(x,x) double(0()) = [31] > [6] = 0() Following rules are (at-least) weakly oriented: +(x,s(y)) = [2] x + [3] y + [0] >= [2] x + [3] y + [0] = s(+(x,y)) +(s(x),y) = [2] x + [3] y + [0] >= [2] x + [3] y + [0] = s(+(x,y)) double(s(x)) = [5] x + [1] >= [5] x + [1] = s(s(double(x))) Further, it can be verified that all rules not oriented are covered by the weightgap condition. * Step 3: NaturalMI WORST_CASE(?,O(n^1)) + Considered Problem: - Strict TRS: +(x,s(y)) -> s(+(x,y)) - Weak TRS: +(x,0()) -> x +(s(x),y) -> s(+(x,y)) double(x) -> +(x,x) double(0()) -> 0() double(s(x)) -> s(s(double(x))) - Signature: {+/2,double/1} / {0/0,s/1} - Obligation: innermost runtime complexity wrt. defined symbols {+,double} and constructors {0,s} + Applied Processor: NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Just any strict-rules} + Details: We apply a matrix interpretation of kind constructor based matrix interpretation: The following argument positions are considered usable: uargs(s) = {1} Following symbols are considered usable: {+,double} TcT has computed the following interpretation: p(+) = [5] x1 + [5] x2 + [0] p(0) = [0] p(double) = [11] x1 + [0] p(s) = [1] x1 + [2] Following rules are strictly oriented: +(x,s(y)) = [5] x + [5] y + [10] > [5] x + [5] y + [2] = s(+(x,y)) Following rules are (at-least) weakly oriented: +(x,0()) = [5] x + [0] >= [1] x + [0] = x +(s(x),y) = [5] x + [5] y + [10] >= [5] x + [5] y + [2] = s(+(x,y)) double(x) = [11] x + [0] >= [10] x + [0] = +(x,x) double(0()) = [0] >= [0] = 0() double(s(x)) = [11] x + [22] >= [11] x + [4] = s(s(double(x))) * Step 4: EmptyProcessor WORST_CASE(?,O(1)) + Considered Problem: - Weak TRS: +(x,0()) -> x +(x,s(y)) -> s(+(x,y)) +(s(x),y) -> s(+(x,y)) double(x) -> +(x,x) double(0()) -> 0() double(s(x)) -> s(s(double(x))) - Signature: {+/2,double/1} / {0/0,s/1} - Obligation: innermost runtime complexity wrt. defined symbols {+,double} and constructors {0,s} + Applied Processor: EmptyProcessor + Details: The problem is already closed. The intended complexity is O(1). WORST_CASE(?,O(n^1))