Term Rewriting System R:
[x]
f(a, f(a, x)) -> f(a, f(f(a, a), f(a, x)))
Innermost Termination of R to be shown.
   R
     ↳Dependency Pair Analysis
R contains the following Dependency Pairs: 
F(a, f(a, x)) -> F(a, f(f(a, a), f(a, x)))
F(a, f(a, x)) -> F(f(a, a), f(a, x))
F(a, f(a, x)) -> F(a, a)
Furthermore, R contains one SCC.
   R
     ↳DPs
       →DP Problem 1
         ↳Remaining Obligation(s)
The following remains to be proven:
Dependency Pairs:
F(a, f(a, x)) -> F(f(a, a), f(a, x))
F(a, f(a, x)) -> F(a, f(f(a, a), f(a, x)))
Rule:
f(a, f(a, x)) -> f(a, f(f(a, a), f(a, x)))
Strategy:
innermost
Innermost Termination of R could not be shown.
Duration: 
0:00 minutes