Term Rewriting System R:
[x]
f(h(x)) -> f(i(x))
g(i(x)) -> g(h(x))
h(a) -> b
i(a) -> b

Innermost Termination of R to be shown.

`   R`
`     ↳Dependency Pair Analysis`

R contains the following Dependency Pairs:

F(h(x)) -> F(i(x))
F(h(x)) -> I(x)
G(i(x)) -> G(h(x))
G(i(x)) -> H(x)

Furthermore, R contains two SCCs.

`   R`
`     ↳DPs`
`       →DP Problem 1`
`         ↳Argument Filtering and Ordering`
`       →DP Problem 2`
`         ↳AFS`

Dependency Pair:

F(h(x)) -> F(i(x))

Rules:

f(h(x)) -> f(i(x))
g(i(x)) -> g(h(x))
h(a) -> b
i(a) -> b

Strategy:

innermost

The following dependency pair can be strictly oriented:

F(h(x)) -> F(i(x))

The following usable rule for innermost w.r.t. to the AFS can be oriented:

i(a) -> b

Used ordering: Polynomial ordering with Polynomial interpretation:
 POL(i(x1)) =  x1 POL(b) =  0 POL(h(x1)) =  1 + x1 POL(a) =  0 POL(F(x1)) =  x1

resulting in one new DP problem.
Used Argument Filtering System:
F(x1) -> F(x1)
h(x1) -> h(x1)
i(x1) -> i(x1)

`   R`
`     ↳DPs`
`       →DP Problem 1`
`         ↳AFS`
`           →DP Problem 3`
`             ↳Dependency Graph`
`       →DP Problem 2`
`         ↳AFS`

Dependency Pair:

Rules:

f(h(x)) -> f(i(x))
g(i(x)) -> g(h(x))
h(a) -> b
i(a) -> b

Strategy:

innermost

Using the Dependency Graph resulted in no new DP problems.

`   R`
`     ↳DPs`
`       →DP Problem 1`
`         ↳AFS`
`       →DP Problem 2`
`         ↳Argument Filtering and Ordering`

Dependency Pair:

G(i(x)) -> G(h(x))

Rules:

f(h(x)) -> f(i(x))
g(i(x)) -> g(h(x))
h(a) -> b
i(a) -> b

Strategy:

innermost

The following dependency pair can be strictly oriented:

G(i(x)) -> G(h(x))

The following usable rule for innermost w.r.t. to the AFS can be oriented:

h(a) -> b

Used ordering: Polynomial ordering with Polynomial interpretation:
 POL(i(x1)) =  1 + x1 POL(G(x1)) =  x1 POL(b) =  0 POL(h(x1)) =  x1 POL(a) =  0

resulting in one new DP problem.
Used Argument Filtering System:
G(x1) -> G(x1)
i(x1) -> i(x1)
h(x1) -> h(x1)

`   R`
`     ↳DPs`
`       →DP Problem 1`
`         ↳AFS`
`       →DP Problem 2`
`         ↳AFS`
`           →DP Problem 4`
`             ↳Dependency Graph`

Dependency Pair:

Rules:

f(h(x)) -> f(i(x))
g(i(x)) -> g(h(x))
h(a) -> b
i(a) -> b

Strategy:

innermost

Using the Dependency Graph resulted in no new DP problems.

Innermost Termination of R successfully shown.
Duration:
0:00 minutes