Term Rewriting System R:
[X]
f(a, b, X) -> f(X, X, X)
c -> a
c -> b

Termination of R to be shown.



   R
Dependency Pair Analysis



R contains the following Dependency Pairs:

F(a, b, X) -> F(X, X, X)

Furthermore, R contains one SCC.


   R
DPs
       →DP Problem 1
Non Termination


Dependency Pair:

F(a, b, X) -> F(X, X, X)


Rules:


f(a, b, X) -> f(X, X, X)
c -> a
c -> b





Found an infinite P-chain over R:
P =

F(a, b, X) -> F(X, X, X)

R =

f(a, b, X) -> f(X, X, X)
c -> a
c -> b

s = F(c, c, c)
evaluates to t =F(c, c, c)

Thus, s starts an infinite chain.

Non-Termination of R could be shown.
Duration:
0:00 minutes