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