* Step 1: Sum WORST_CASE(Omega(n^1),O(n^1))
+ Considered Problem:
- Strict TRS:
a__b() -> a()
a__b() -> b()
a__f(X1,X2,X3) -> f(X1,X2,X3)
a__f(a(),X,X) -> a__f(X,a__b(),b())
mark(a()) -> a()
mark(b()) -> a__b()
mark(f(X1,X2,X3)) -> a__f(X1,mark(X2),X3)
- Signature:
{a__b/0,a__f/3,mark/1} / {a/0,b/0,f/3}
- Obligation:
innermost runtime complexity wrt. defined symbols {a__b,a__f,mark} and constructors {a,b,f}
+ Applied Processor:
Sum {left = someStrategy, right = someStrategy}
+ Details:
()
** Step 1.a:1: DecreasingLoops WORST_CASE(Omega(n^1),?)
+ Considered Problem:
- Strict TRS:
a__b() -> a()
a__b() -> b()
a__f(X1,X2,X3) -> f(X1,X2,X3)
a__f(a(),X,X) -> a__f(X,a__b(),b())
mark(a()) -> a()
mark(b()) -> a__b()
mark(f(X1,X2,X3)) -> a__f(X1,mark(X2),X3)
- Signature:
{a__b/0,a__f/3,mark/1} / {a/0,b/0,f/3}
- Obligation:
innermost runtime complexity wrt. defined symbols {a__b,a__f,mark} and constructors {a,b,f}
+ Applied Processor:
DecreasingLoops {bound = AnyLoop, narrow = 10}
+ Details:
The system has following decreasing Loops:
mark(y){y -> f(x,y,z)} =
mark(f(x,y,z)) ->^+ a__f(x,mark(y),z)
= C[mark(y) = mark(y){}]
** Step 1.b:1: WeightGap WORST_CASE(?,O(n^1))
+ Considered Problem:
- Strict TRS:
a__b() -> a()
a__b() -> b()
a__f(X1,X2,X3) -> f(X1,X2,X3)
a__f(a(),X,X) -> a__f(X,a__b(),b())
mark(a()) -> a()
mark(b()) -> a__b()
mark(f(X1,X2,X3)) -> a__f(X1,mark(X2),X3)
- Signature:
{a__b/0,a__f/3,mark/1} / {a/0,b/0,f/3}
- Obligation:
innermost runtime complexity wrt. defined symbols {a__b,a__f,mark} and constructors {a,b,f}
+ 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(a__f) = {2}
Following symbols are considered usable:
all
TcT has computed the following interpretation:
p(a) = [4]
p(a__b) = [0]
p(a__f) = [1] x1 + [1] x2 + [0]
p(b) = [10]
p(f) = [1] x1 + [1] x2 + [12]
p(mark) = [2] x1 + [0]
Following rules are strictly oriented:
a__f(a(),X,X) = [1] X + [4]
> [1] X + [0]
= a__f(X,a__b(),b())
mark(a()) = [8]
> [4]
= a()
mark(b()) = [20]
> [0]
= a__b()
mark(f(X1,X2,X3)) = [2] X1 + [2] X2 + [24]
> [1] X1 + [2] X2 + [0]
= a__f(X1,mark(X2),X3)
Following rules are (at-least) weakly oriented:
a__b() = [0]
>= [4]
= a()
a__b() = [0]
>= [10]
= b()
a__f(X1,X2,X3) = [1] X1 + [1] X2 + [0]
>= [1] X1 + [1] X2 + [12]
= f(X1,X2,X3)
Further, it can be verified that all rules not oriented are covered by the weightgap condition.
** Step 1.b:2: WeightGap WORST_CASE(?,O(n^1))
+ Considered Problem:
- Strict TRS:
a__b() -> a()
a__b() -> b()
a__f(X1,X2,X3) -> f(X1,X2,X3)
- Weak TRS:
a__f(a(),X,X) -> a__f(X,a__b(),b())
mark(a()) -> a()
mark(b()) -> a__b()
mark(f(X1,X2,X3)) -> a__f(X1,mark(X2),X3)
- Signature:
{a__b/0,a__f/3,mark/1} / {a/0,b/0,f/3}
- Obligation:
innermost runtime complexity wrt. defined symbols {a__b,a__f,mark} and constructors {a,b,f}
+ 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(a__f) = {2}
Following symbols are considered usable:
all
TcT has computed the following interpretation:
p(a) = [1]
p(a__b) = [1]
p(a__f) = [1] x1 + [1] x2 + [1] x3 + [3]
p(b) = [0]
p(f) = [1] x1 + [1] x2 + [1] x3 + [2]
p(mark) = [9] x1 + [1]
Following rules are strictly oriented:
a__b() = [1]
> [0]
= b()
a__f(X1,X2,X3) = [1] X1 + [1] X2 + [1] X3 + [3]
> [1] X1 + [1] X2 + [1] X3 + [2]
= f(X1,X2,X3)
Following rules are (at-least) weakly oriented:
a__b() = [1]
>= [1]
= a()
a__f(a(),X,X) = [2] X + [4]
>= [1] X + [4]
= a__f(X,a__b(),b())
mark(a()) = [10]
>= [1]
= a()
mark(b()) = [1]
>= [1]
= a__b()
mark(f(X1,X2,X3)) = [9] X1 + [9] X2 + [9] X3 + [19]
>= [1] X1 + [9] X2 + [1] X3 + [4]
= a__f(X1,mark(X2),X3)
Further, it can be verified that all rules not oriented are covered by the weightgap condition.
** Step 1.b:3: WeightGap WORST_CASE(?,O(n^1))
+ Considered Problem:
- Strict TRS:
a__b() -> a()
- Weak TRS:
a__b() -> b()
a__f(X1,X2,X3) -> f(X1,X2,X3)
a__f(a(),X,X) -> a__f(X,a__b(),b())
mark(a()) -> a()
mark(b()) -> a__b()
mark(f(X1,X2,X3)) -> a__f(X1,mark(X2),X3)
- Signature:
{a__b/0,a__f/3,mark/1} / {a/0,b/0,f/3}
- Obligation:
innermost runtime complexity wrt. defined symbols {a__b,a__f,mark} and constructors {a,b,f}
+ 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(a__f) = {2}
Following symbols are considered usable:
all
TcT has computed the following interpretation:
p(a) = [4]
p(a__b) = [8]
p(a__f) = [4] x1 + [1] x2 + [3] x3 + [15]
p(b) = [1]
p(f) = [1] x1 + [1] x2 + [1] x3 + [5]
p(mark) = [4] x1 + [4]
Following rules are strictly oriented:
a__b() = [8]
> [4]
= a()
Following rules are (at-least) weakly oriented:
a__b() = [8]
>= [1]
= b()
a__f(X1,X2,X3) = [4] X1 + [1] X2 + [3] X3 + [15]
>= [1] X1 + [1] X2 + [1] X3 + [5]
= f(X1,X2,X3)
a__f(a(),X,X) = [4] X + [31]
>= [4] X + [26]
= a__f(X,a__b(),b())
mark(a()) = [20]
>= [4]
= a()
mark(b()) = [8]
>= [8]
= a__b()
mark(f(X1,X2,X3)) = [4] X1 + [4] X2 + [4] X3 + [24]
>= [4] X1 + [4] X2 + [3] X3 + [19]
= a__f(X1,mark(X2),X3)
Further, it can be verified that all rules not oriented are covered by the weightgap condition.
** Step 1.b:4: EmptyProcessor WORST_CASE(?,O(1))
+ Considered Problem:
- Weak TRS:
a__b() -> a()
a__b() -> b()
a__f(X1,X2,X3) -> f(X1,X2,X3)
a__f(a(),X,X) -> a__f(X,a__b(),b())
mark(a()) -> a()
mark(b()) -> a__b()
mark(f(X1,X2,X3)) -> a__f(X1,mark(X2),X3)
- Signature:
{a__b/0,a__f/3,mark/1} / {a/0,b/0,f/3}
- Obligation:
innermost runtime complexity wrt. defined symbols {a__b,a__f,mark} and constructors {a,b,f}
+ Applied Processor:
EmptyProcessor
+ Details:
The problem is already closed. The intended complexity is O(1).
WORST_CASE(Omega(n^1),O(n^1))