Term Rewriting System R:
[x, y]
f(x, x) -> a
f(g(x), y) -> f(x, y)

Termination of R to be shown.



   R
Dependency Pair Analysis



R contains the following Dependency Pairs:

F(g(x), y) -> F(x, y)

Furthermore, R contains one SCC.


   R
DPs
       →DP Problem 1
Forward Instantiation Transformation


Dependency Pair:

F(g(x), y) -> F(x, y)


Rules:


f(x, x) -> a
f(g(x), y) -> f(x, y)





On this DP problem, a Forward Instantiation SCC transformation can be performed.
As a result of transforming the rule

F(g(x), y) -> F(x, y)
one new Dependency Pair is created:

F(g(g(x'')), y'') -> F(g(x''), y'')

The transformation is resulting in one new DP problem:



   R
DPs
       →DP Problem 1
FwdInst
           →DP Problem 2
Remaining Obligation(s)




The following remains to be proven:
Dependency Pair:

F(g(g(x'')), y'') -> F(g(x''), y'')


Rules:


f(x, x) -> a
f(g(x), y) -> f(x, y)




Termination of R could not be shown.
Duration:
0:00 minutes