Term Rewriting System R:
[X]
f(X, g(X)) -> f(1, g(X))
g(1) -> g(0)
Termination of R to be shown.
R
↳Dependency Pair Analysis
R contains the following Dependency Pairs:
F(X, g(X)) -> F(1, g(X))
G(1) -> G(0)
Furthermore, R contains one SCC.
R
↳DPs
→DP Problem 1
↳Modular Removal of Rules
Dependency Pair:
F(X, g(X)) -> F(1, g(X))
Rules:
f(X, g(X)) -> f(1, g(X))
g(1) -> g(0)
We have the following set of usable rules:
g(1) -> g(0)
To remove rules and DPs from this DP problem we used the following monotonic and CE-compatible order: Polynomial ordering.
Polynomial interpretation:
POL(0) | = 0 |
POL(g(x1)) | = x1 |
POL(1) | = 0 |
POL(F(x1, x2)) | = x1 + x2 |
We have the following set D of usable symbols: {0, g, 1, F}
No Dependency Pairs can be deleted.
1 non usable rules have been deleted.
The result of this processor delivers one new DP problem.
R
↳DPs
→DP Problem 1
↳MRR
→DP Problem 2
↳Non Termination
Dependency Pair:
F(X, g(X)) -> F(1, g(X))
Rule:
g(1) -> g(0)
Found an infinite P-chain over R:
P =
F(X, g(X)) -> F(1, g(X))
R =
g(1) -> g(0)
s = F(1, g(1))
evaluates to t =F(1, g(1))
Thus, s starts an infinite chain.
Non-Termination of R could be shown.
Duration:
0:00 minutes