MAYBE * Step 1: DependencyPairs MAYBE + Considered Problem: - Strict TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2} / {+/2,f/1,g/2} - Obligation: innermost runtime complexity wrt. defined symbols {*} and constructors {+,f,g} + Applied Processor: DependencyPairs {dpKind_ = DT} + Details: We add the following dependency tuples: Strict DPs *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))) *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) Weak DPs and mark the set of starting terms. * Step 2: Decompose MAYBE + Considered Problem: - Strict DPs: *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))) *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: Decompose {onSelection = all cycle independent sub-graph, withBound = RelativeAdd} + Details: We analyse the complexity of following sub-problems (R) and (S). Problem (S) is obtained from the input problem by shifting strict rules from (R) into the weak component. Problem (R) - Strict DPs: *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))) - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} Problem (S) - Strict DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak DPs: *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} ** Step 2.a:1: DecomposeDG MAYBE + Considered Problem: - Strict DPs: *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))) - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: DecomposeDG {onSelection = all below first cut in WDG, onUpper = Just someStrategy, onLower = Nothing} + Details: We decompose the input problem according to the dependency graph into the upper component *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) and a lower component *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))) Further, following extension rules are added to the lower component. *#(*(x,y),z) -> *#(x,*(y,z)) *#(*(x,y),z) -> *#(y,z) *#(+(x,y),z) -> *#(x,z) *#(+(x,y),z) -> *#(y,z) *** Step 2.a:1.a:1: PredecessorEstimationCP WORST_CASE(?,O(n^1)) + Considered Problem: - Strict DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: PredecessorEstimationCP {onSelectionCP = any intersect of rules of CDG leaf and strict-rules, withComplexityPair = NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Nothing}} + Details: We first use the processor NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Nothing} to orient following rules strictly: 1: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) The strictly oriented rules are moved into the weak component. **** Step 2.a:1.a:1.a:1: NaturalMI WORST_CASE(?,O(n^1)) + Considered Problem: - Strict DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Just first alternative for predecessorEstimation on any intersect of rules of CDG leaf and strict-rules} + Details: We apply a matrix interpretation of kind constructor based matrix interpretation: The following argument positions are considered usable: uargs(c_2) = {1,2}, uargs(c_3) = {1,2} Following symbols are considered usable: {*#} TcT has computed the following interpretation: p(*) = [4] x1 + [4] x2 + [2] p(+) = [1] x1 + [1] x2 + [0] p(f) = [0] p(g) = [1] x2 + [4] p(*#) = [4] x1 + [0] p(c_1) = [1] x1 + [0] p(c_2) = [2] x1 + [4] x2 + [0] p(c_3) = [1] x1 + [1] x2 + [0] Following rules are strictly oriented: *#(*(x,y),z) = [16] x + [16] y + [8] > [8] x + [16] y + [0] = c_2(*#(x,*(y,z)),*#(y,z)) Following rules are (at-least) weakly oriented: *#(+(x,y),z) = [4] x + [4] y + [0] >= [4] x + [4] y + [0] = c_3(*#(x,z),*#(y,z)) **** Step 2.a:1.a:1.a:2: Assumption WORST_CASE(?,O(1)) + Considered Problem: - Strict DPs: *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: Assumption {assumed = Certificate {spaceUB = Unknown, spaceLB = Unknown, timeUB = Poly (Just 0), timeLB = Unknown}} + Details: () **** Step 2.a:1.a:1.b:1: PredecessorEstimationCP WORST_CASE(?,O(n^1)) + Considered Problem: - Strict DPs: *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: PredecessorEstimationCP {onSelectionCP = any intersect of rules of CDG leaf and strict-rules, withComplexityPair = NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Nothing}} + Details: We first use the processor NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Nothing} to orient following rules strictly: 1: *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) The strictly oriented rules are moved into the weak component. ***** Step 2.a:1.a:1.b:1.a:1: NaturalMI WORST_CASE(?,O(n^1)) + Considered Problem: - Strict DPs: *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Just first alternative for predecessorEstimation on any intersect of rules of CDG leaf and strict-rules} + Details: We apply a matrix interpretation of kind constructor based matrix interpretation: The following argument positions are considered usable: uargs(c_2) = {1,2}, uargs(c_3) = {1,2} Following symbols are considered usable: {*#} TcT has computed the following interpretation: p(*) = [1] x1 + [1] x2 + [3] p(+) = [1] x1 + [1] x2 + [1] p(f) = [0] p(g) = [1] x2 + [9] p(*#) = [8] x1 + [0] p(c_1) = [8] p(c_2) = [1] x1 + [1] x2 + [1] p(c_3) = [1] x1 + [1] x2 + [1] Following rules are strictly oriented: *#(+(x,y),z) = [8] x + [8] y + [8] > [8] x + [8] y + [1] = c_3(*#(x,z),*#(y,z)) Following rules are (at-least) weakly oriented: *#(*(x,y),z) = [8] x + [8] y + [24] >= [8] x + [8] y + [1] = c_2(*#(x,*(y,z)),*#(y,z)) ***** Step 2.a:1.a:1.b:1.a:2: Assumption WORST_CASE(?,O(1)) + Considered Problem: - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: Assumption {assumed = Certificate {spaceUB = Unknown, spaceLB = Unknown, timeUB = Poly (Just 0), timeLB = Unknown}} + Details: () ***** Step 2.a:1.a:1.b:1.b:1: RemoveWeakSuffixes WORST_CASE(?,O(1)) + Considered Problem: - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: RemoveWeakSuffixes + Details: Consider the dependency graph 1:W:*#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) -->_2 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_1 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_2 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 -->_1 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 2:W:*#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) -->_2 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_1 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_2 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 -->_1 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 The following weak DPs constitute a sub-graph of the DG that is closed under successors. The DPs are removed. 1: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) 2: *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) ***** Step 2.a:1.a:1.b:1.b:2: EmptyProcessor WORST_CASE(?,O(1)) + Considered Problem: - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: EmptyProcessor + Details: The problem is already closed. The intended complexity is O(1). *** Step 2.a:1.b:1: Failure MAYBE + Considered Problem: - Strict DPs: *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))) - Weak DPs: *#(*(x,y),z) -> *#(x,*(y,z)) *#(*(x,y),z) -> *#(y,z) *#(+(x,y),z) -> *#(x,z) *#(+(x,y),z) -> *#(y,z) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: EmptyProcessor + Details: The problem is still open. ** Step 2.b:1: RemoveWeakSuffixes WORST_CASE(?,O(n^1)) + Considered Problem: - Strict DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak DPs: *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: RemoveWeakSuffixes + Details: Consider the dependency graph 1:S:*#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) -->_2 *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))):3 -->_1 *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))):3 -->_2 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_1 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_2 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 -->_1 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 2:S:*#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) -->_2 *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))):3 -->_1 *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))):3 -->_2 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_1 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_2 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 -->_1 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 3:W:*#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))) -->_1 *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))):3 The following weak DPs constitute a sub-graph of the DG that is closed under successors. The DPs are removed. 3: *#(x,+(y,f(z))) -> c_1(*#(g(x,z),+(y,y))) ** Step 2.b:2: PredecessorEstimationCP WORST_CASE(?,O(n^1)) + Considered Problem: - Strict DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: PredecessorEstimationCP {onSelectionCP = any intersect of rules of CDG leaf and strict-rules, withComplexityPair = NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Nothing}} + Details: We first use the processor NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Nothing} to orient following rules strictly: 1: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) The strictly oriented rules are moved into the weak component. *** Step 2.b:2.a:1: NaturalMI WORST_CASE(?,O(n^1)) + Considered Problem: - Strict DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Just first alternative for predecessorEstimation on any intersect of rules of CDG leaf and strict-rules} + Details: We apply a matrix interpretation of kind constructor based matrix interpretation: The following argument positions are considered usable: uargs(c_2) = {1,2}, uargs(c_3) = {1,2} Following symbols are considered usable: {*#} TcT has computed the following interpretation: p(*) = [4] x1 + [4] x2 + [2] p(+) = [1] x1 + [1] x2 + [0] p(f) = [0] p(g) = [1] x2 + [4] p(*#) = [4] x1 + [0] p(c_1) = [1] x1 + [0] p(c_2) = [2] x1 + [4] x2 + [0] p(c_3) = [1] x1 + [1] x2 + [0] Following rules are strictly oriented: *#(*(x,y),z) = [16] x + [16] y + [8] > [8] x + [16] y + [0] = c_2(*#(x,*(y,z)),*#(y,z)) Following rules are (at-least) weakly oriented: *#(+(x,y),z) = [4] x + [4] y + [0] >= [4] x + [4] y + [0] = c_3(*#(x,z),*#(y,z)) *** Step 2.b:2.a:2: Assumption WORST_CASE(?,O(1)) + Considered Problem: - Strict DPs: *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: Assumption {assumed = Certificate {spaceUB = Unknown, spaceLB = Unknown, timeUB = Poly (Just 0), timeLB = Unknown}} + Details: () *** Step 2.b:2.b:1: PredecessorEstimationCP WORST_CASE(?,O(n^1)) + Considered Problem: - Strict DPs: *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: PredecessorEstimationCP {onSelectionCP = any intersect of rules of CDG leaf and strict-rules, withComplexityPair = NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Nothing}} + Details: We first use the processor NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Nothing} to orient following rules strictly: 1: *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) The strictly oriented rules are moved into the weak component. **** Step 2.b:2.b:1.a:1: NaturalMI WORST_CASE(?,O(n^1)) + Considered Problem: - Strict DPs: *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Just first alternative for predecessorEstimation on any intersect of rules of CDG leaf and strict-rules} + Details: We apply a matrix interpretation of kind constructor based matrix interpretation: The following argument positions are considered usable: uargs(c_2) = {1,2}, uargs(c_3) = {1,2} Following symbols are considered usable: {*#} TcT has computed the following interpretation: p(*) = [1] x1 + [1] x2 + [3] p(+) = [1] x1 + [1] x2 + [1] p(f) = [0] p(g) = [1] x2 + [9] p(*#) = [8] x1 + [0] p(c_1) = [8] p(c_2) = [1] x1 + [1] x2 + [1] p(c_3) = [1] x1 + [1] x2 + [1] Following rules are strictly oriented: *#(+(x,y),z) = [8] x + [8] y + [8] > [8] x + [8] y + [1] = c_3(*#(x,z),*#(y,z)) Following rules are (at-least) weakly oriented: *#(*(x,y),z) = [8] x + [8] y + [24] >= [8] x + [8] y + [1] = c_2(*#(x,*(y,z)),*#(y,z)) **** Step 2.b:2.b:1.a:2: Assumption WORST_CASE(?,O(1)) + Considered Problem: - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: Assumption {assumed = Certificate {spaceUB = Unknown, spaceLB = Unknown, timeUB = Poly (Just 0), timeLB = Unknown}} + Details: () **** Step 2.b:2.b:1.b:1: RemoveWeakSuffixes WORST_CASE(?,O(1)) + Considered Problem: - Weak DPs: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: RemoveWeakSuffixes + Details: Consider the dependency graph 1:W:*#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) -->_2 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_1 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_2 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 -->_1 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 2:W:*#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) -->_2 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_1 *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)):2 -->_2 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 -->_1 *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)):1 The following weak DPs constitute a sub-graph of the DG that is closed under successors. The DPs are removed. 1: *#(*(x,y),z) -> c_2(*#(x,*(y,z)),*#(y,z)) 2: *#(+(x,y),z) -> c_3(*#(x,z),*#(y,z)) **** Step 2.b:2.b:1.b:2: EmptyProcessor WORST_CASE(?,O(1)) + Considered Problem: - Weak TRS: *(x,+(y,f(z))) -> *(g(x,z),+(y,y)) *(*(x,y),z) -> *(x,*(y,z)) *(+(x,y),z) -> +(*(x,z),*(y,z)) - Signature: {*/2,*#/2} / {+/2,f/1,g/2,c_1/1,c_2/2,c_3/2} - Obligation: innermost runtime complexity wrt. defined symbols {*#} and constructors {+,f,g} + Applied Processor: EmptyProcessor + Details: The problem is already closed. The intended complexity is O(1). MAYBE