MAYBE
The TRS could not be proven terminating. The proof attempt took 4749 ms.
Problem 1 remains open; application of the following processors failed [DependencyGraph (27ms), SubtermCriterion (1ms), DependencyGraph (12ms), PolynomialLinearRange4iUR (311ms), DependencyGraph (4ms), PolynomialLinearRange8NegiUR (2436ms), DependencyGraph (4ms), ReductionPairSAT (1813ms), DependencyGraph (3ms), SizeChangePrinciple (15ms)].
f#(x, f(y, a)) | → | f#(f(a, a), f(f(x, a), y)) | f#(x, f(y, a)) | → | f#(a, a) | |
f#(x, f(y, a)) | → | f#(f(x, a), y) | f#(x, f(y, a)) | → | f#(x, a) |
f(x, f(y, a)) | → | f(f(a, a), f(f(x, a), y)) |
Termination of terms over the following signature is verified: f, a