*** 1 Progress [(?,O(n^1))] ***
Considered Problem:
Strict DP Rules:
Strict TRS Rules:
f(X,Y,g(X,Y)) -> h(0(),g(X,Y))
g(X,s(Y)) -> g(X,Y)
g(0(),Y) -> 0()
h(X,Z) -> f(X,s(X),Z)
Weak DP Rules:
Weak TRS Rules:
Signature:
{f/3,g/2,h/2} / {0/0,s/1}
Obligation:
Innermost
basic terms: {f,g,h}/{0,s}
Applied Processor:
DependencyPairs {dpKind_ = WIDP}
Proof:
We add the following weak innermost dependency pairs:
Strict DPs
f#(X,Y,g(X,Y)) -> c_1(h#(0(),g(X,Y)))
g#(X,s(Y)) -> c_2(g#(X,Y))
g#(0(),Y) -> c_3()
h#(X,Z) -> c_4(f#(X,s(X),Z))
Weak DPs
and mark the set of starting terms.
*** 1.1 Progress [(?,O(n^1))] ***
Considered Problem:
Strict DP Rules:
f#(X,Y,g(X,Y)) -> c_1(h#(0(),g(X,Y)))
g#(X,s(Y)) -> c_2(g#(X,Y))
g#(0(),Y) -> c_3()
h#(X,Z) -> c_4(f#(X,s(X),Z))
Strict TRS Rules:
f(X,Y,g(X,Y)) -> h(0(),g(X,Y))
g(X,s(Y)) -> g(X,Y)
g(0(),Y) -> 0()
h(X,Z) -> f(X,s(X),Z)
Weak DP Rules:
Weak TRS Rules:
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
Applied Processor:
UsableRules
Proof:
We replace rewrite rules by usable rules:
g(X,s(Y)) -> g(X,Y)
g(0(),Y) -> 0()
f#(X,Y,g(X,Y)) -> c_1(h#(0(),g(X,Y)))
g#(X,s(Y)) -> c_2(g#(X,Y))
g#(0(),Y) -> c_3()
h#(X,Z) -> c_4(f#(X,s(X),Z))
*** 1.1.1 Progress [(?,O(n^1))] ***
Considered Problem:
Strict DP Rules:
f#(X,Y,g(X,Y)) -> c_1(h#(0(),g(X,Y)))
g#(X,s(Y)) -> c_2(g#(X,Y))
g#(0(),Y) -> c_3()
h#(X,Z) -> c_4(f#(X,s(X),Z))
Strict TRS Rules:
g(X,s(Y)) -> g(X,Y)
g(0(),Y) -> 0()
Weak DP Rules:
Weak TRS Rules:
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
Applied Processor:
WeightGap {wgDimension = 1, wgDegree = 1, wgKind = Algebraic, wgUArgs = UArgs, wgOn = WgOnTrs}
Proof:
The weightgap principle applies using the following constant growth matrix-interpretation:
We apply a matrix interpretation of kind constructor based matrix interpretation:
The following argument positions are considered usable:
uargs(c_1) = {1},
uargs(c_2) = {1},
uargs(c_4) = {1}
Following symbols are considered usable:
{}
TcT has computed the following interpretation:
p(0) = [0]
p(f) = [0]
p(g) = [4] x2 + [2]
p(h) = [1] x1 + [2]
p(s) = [1] x1 + [4]
p(f#) = [10] x1 + [2] x2 + [4] x3 + [0]
p(g#) = [8] x1 + [1] x2 + [1]
p(h#) = [13] x1 + [4] x2 + [2]
p(c_1) = [1] x1 + [4]
p(c_2) = [1] x1 + [3]
p(c_3) = [2]
p(c_4) = [1] x1 + [8]
Following rules are strictly oriented:
g#(X,s(Y)) = [8] X + [1] Y + [5]
> [8] X + [1] Y + [4]
= c_2(g#(X,Y))
g(X,s(Y)) = [4] Y + [18]
> [4] Y + [2]
= g(X,Y)
g(0(),Y) = [4] Y + [2]
> [0]
= 0()
Following rules are (at-least) weakly oriented:
f#(X,Y,g(X,Y)) = [10] X + [18] Y + [8]
>= [16] Y + [14]
= c_1(h#(0(),g(X,Y)))
g#(0(),Y) = [1] Y + [1]
>= [2]
= c_3()
h#(X,Z) = [13] X + [4] Z + [2]
>= [12] X + [4] Z + [16]
= c_4(f#(X,s(X),Z))
Further, it can be verified that all rules not oriented are covered by the weightgap condition.
*** 1.1.1.1 Progress [(?,O(n^1))] ***
Considered Problem:
Strict DP Rules:
f#(X,Y,g(X,Y)) -> c_1(h#(0(),g(X,Y)))
g#(0(),Y) -> c_3()
h#(X,Z) -> c_4(f#(X,s(X),Z))
Strict TRS Rules:
Weak DP Rules:
g#(X,s(Y)) -> c_2(g#(X,Y))
Weak TRS Rules:
g(X,s(Y)) -> g(X,Y)
g(0(),Y) -> 0()
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
Applied Processor:
RemoveInapplicable
Proof:
Only the nodes
{2,3,4}
are reachable from nodes
{2,3,4}
that start derivation from marked basic terms.
The nodes not reachable are removed from the problem.
*** 1.1.1.1.1 Progress [(?,O(n^1))] ***
Considered Problem:
Strict DP Rules:
g#(0(),Y) -> c_3()
h#(X,Z) -> c_4(f#(X,s(X),Z))
Strict TRS Rules:
Weak DP Rules:
g#(X,s(Y)) -> c_2(g#(X,Y))
Weak TRS Rules:
g(X,s(Y)) -> g(X,Y)
g(0(),Y) -> 0()
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
Applied Processor:
PredecessorEstimation {onSelection = all simple predecessor estimation selector}
Proof:
We estimate the number of application of
{2}
by application of
Pre({2}) = {}.
Here rules are labelled as follows:
1: g#(0(),Y) -> c_3()
2: h#(X,Z) -> c_4(f#(X,s(X),Z))
3: g#(X,s(Y)) -> c_2(g#(X,Y))
*** 1.1.1.1.1.1 Progress [(?,O(n^1))] ***
Considered Problem:
Strict DP Rules:
g#(0(),Y) -> c_3()
Strict TRS Rules:
Weak DP Rules:
g#(X,s(Y)) -> c_2(g#(X,Y))
h#(X,Z) -> c_4(f#(X,s(X),Z))
Weak TRS Rules:
g(X,s(Y)) -> g(X,Y)
g(0(),Y) -> 0()
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
Applied Processor:
RemoveWeakSuffixes
Proof:
Consider the dependency graph
1:S:g#(0(),Y) -> c_3()
2:W:g#(X,s(Y)) -> c_2(g#(X,Y))
-->_1 g#(X,s(Y)) -> c_2(g#(X,Y)):2
-->_1 g#(0(),Y) -> c_3():1
3:W:h#(X,Z) -> c_4(f#(X,s(X),Z))
The following weak DPs constitute a sub-graph of the DG that is closed under successors. The DPs are removed.
3: h#(X,Z) -> c_4(f#(X,s(X),Z))
*** 1.1.1.1.1.1.1 Progress [(?,O(n^1))] ***
Considered Problem:
Strict DP Rules:
g#(0(),Y) -> c_3()
Strict TRS Rules:
Weak DP Rules:
g#(X,s(Y)) -> c_2(g#(X,Y))
Weak TRS Rules:
g(X,s(Y)) -> g(X,Y)
g(0(),Y) -> 0()
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
Applied Processor:
UsableRules
Proof:
We replace rewrite rules by usable rules:
g#(X,s(Y)) -> c_2(g#(X,Y))
g#(0(),Y) -> c_3()
*** 1.1.1.1.1.1.1.1 Progress [(?,O(n^1))] ***
Considered Problem:
Strict DP Rules:
g#(0(),Y) -> c_3()
Strict TRS Rules:
Weak DP Rules:
g#(X,s(Y)) -> c_2(g#(X,Y))
Weak TRS Rules:
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
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, greedy = NoGreedy}}
Proof:
We first use the processor NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Nothing, greedy = NoGreedy} to orient following rules strictly:
1: g#(0(),Y) -> c_3()
The strictly oriented rules are moved into the weak component.
*** 1.1.1.1.1.1.1.1.1 Progress [(?,O(n^1))] ***
Considered Problem:
Strict DP Rules:
g#(0(),Y) -> c_3()
Strict TRS Rules:
Weak DP Rules:
g#(X,s(Y)) -> c_2(g#(X,Y))
Weak TRS Rules:
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
Applied Processor:
NaturalMI {miDimension = 1, miDegree = 1, miKind = Algebraic, uargs = UArgs, urules = URules, selector = Just first alternative for predecessorEstimation any intersect of rules of CDG leaf and strict-rules, greedy = NoGreedy}
Proof:
We apply a matrix interpretation of kind constructor based matrix interpretation:
The following argument positions are considered usable:
uargs(c_2) = {1}
Following symbols are considered usable:
{f#,g#,h#}
TcT has computed the following interpretation:
p(0) = [4]
p(f) = [1]
p(g) = [2] x1 + [1] x2 + [8]
p(h) = [1] x1 + [1] x2 + [0]
p(s) = [1] x1 + [4]
p(f#) = [1] x2 + [1]
p(g#) = [4] x1 + [4] x2 + [0]
p(h#) = [2] x2 + [0]
p(c_1) = [1] x1 + [0]
p(c_2) = [1] x1 + [11]
p(c_3) = [13]
p(c_4) = [0]
Following rules are strictly oriented:
g#(0(),Y) = [4] Y + [16]
> [13]
= c_3()
Following rules are (at-least) weakly oriented:
g#(X,s(Y)) = [4] X + [4] Y + [16]
>= [4] X + [4] Y + [11]
= c_2(g#(X,Y))
*** 1.1.1.1.1.1.1.1.1.1 Progress [(?,O(1))] ***
Considered Problem:
Strict DP Rules:
Strict TRS Rules:
Weak DP Rules:
g#(X,s(Y)) -> c_2(g#(X,Y))
g#(0(),Y) -> c_3()
Weak TRS Rules:
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
Applied Processor:
Assumption
Proof:
()
*** 1.1.1.1.1.1.1.1.2 Progress [(O(1),O(1))] ***
Considered Problem:
Strict DP Rules:
Strict TRS Rules:
Weak DP Rules:
g#(X,s(Y)) -> c_2(g#(X,Y))
g#(0(),Y) -> c_3()
Weak TRS Rules:
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
Applied Processor:
RemoveWeakSuffixes
Proof:
Consider the dependency graph
1:W:g#(X,s(Y)) -> c_2(g#(X,Y))
-->_1 g#(0(),Y) -> c_3():2
-->_1 g#(X,s(Y)) -> c_2(g#(X,Y)):1
2:W:g#(0(),Y) -> c_3()
The following weak DPs constitute a sub-graph of the DG that is closed under successors. The DPs are removed.
1: g#(X,s(Y)) -> c_2(g#(X,Y))
2: g#(0(),Y) -> c_3()
*** 1.1.1.1.1.1.1.1.2.1 Progress [(O(1),O(1))] ***
Considered Problem:
Strict DP Rules:
Strict TRS Rules:
Weak DP Rules:
Weak TRS Rules:
Signature:
{f/3,g/2,h/2,f#/3,g#/2,h#/2} / {0/0,s/1,c_1/1,c_2/1,c_3/0,c_4/1}
Obligation:
Innermost
basic terms: {f#,g#,h#}/{0,s}
Applied Processor:
EmptyProcessor
Proof:
The problem is already closed. The intended complexity is O(1).