Term Rewriting System R:
[x, y, z]
f(x, y, z) -> g(x, y, z)
g(0, 1, x) -> f(x, x, x)
Termination of R to be shown.
R
↳Overlay and local confluence Check
The TRS is overlay and locally confluent (all critical pairs are trivially joinable).Hence, we can switch to innermost.
R
↳OC
→TRS2
↳Dependency Pair Analysis
R contains the following Dependency Pairs:
F(x, y, z) -> G(x, y, z)
G(0, 1, x) -> F(x, x, x)
Furthermore, R contains one SCC.
R
↳OC
→TRS2
↳DPs
→DP Problem 1
↳Usable Rules (Innermost)
Dependency Pairs:
G(0, 1, x) -> F(x, x, x)
F(x, y, z) -> G(x, y, z)
Rules:
f(x, y, z) -> g(x, y, z)
g(0, 1, x) -> f(x, x, x)
Strategy:
innermost
As we are in the innermost case, we can delete all 2 non-usable-rules.
R
↳OC
→TRS2
↳DPs
→DP Problem 1
↳UsableRules
...
→DP Problem 2
↳Instantiation Transformation
Dependency Pairs:
G(0, 1, x) -> F(x, x, x)
F(x, y, z) -> G(x, y, z)
Rule:
none
Strategy:
innermost
On this DP problem, an Instantiation SCC transformation can be performed.
As a result of transforming the rule
F(x, y, z) -> G(x, y, z)
one new Dependency Pair
is created:
F(z', z', z') -> G(z', z', z')
The transformation is resulting in no new DP problems.
Termination of R successfully shown.
Duration:
0:00 minutes