MAYBE
The TRS could not be proven terminating. The proof attempt took 7355 ms.
Problem 1 remains open; application of the following processors failed [DependencyGraph (29ms), SubtermCriterion (1ms), DependencyGraph (12ms), PolynomialLinearRange4iUR (326ms), DependencyGraph (4ms), PolynomialLinearRange8NegiUR (5123ms), DependencyGraph (3ms), ReductionPairSAT (1758ms), DependencyGraph (3ms), SizeChangePrinciple (13ms)].
f#(f(a, a), x) | → | f#(x, a) | f#(f(a, a), x) | → | f#(a, a) | |
f#(f(a, a), x) | → | f#(a, f(a, a)) | f#(f(a, a), x) | → | f#(f(x, a), f(a, f(a, a))) |
f(f(a, a), x) | → | f(f(x, a), f(a, f(a, a))) |
Termination of terms over the following signature is verified: f, a