MAYBE
The TRS could not be proven terminating. The proof attempt took 4090 ms.
Problem 1 remains open; application of the following processors failed [DependencyGraph (37ms), SubtermCriterion (1ms), DependencyGraph (15ms), PolynomialLinearRange4iUR (399ms), DependencyGraph (5ms), PolynomialLinearRange8NegiUR (920ms), DependencyGraph (8ms), ReductionPairSAT (2520ms), DependencyGraph (4ms), SizeChangePrinciple (14ms)].
app#(app(iterate, f), x) | → | app#(iterate, f) | app#(app(iterate, f), x) | → | app#(app(cons, x), app(app(iterate, f), app(f, x))) | |
app#(app(iterate, f), x) | → | app#(cons, x) | app#(app(iterate, f), x) | → | app#(app(iterate, f), app(f, x)) | |
app#(app(iterate, f), x) | → | app#(f, x) |
app(app(iterate, f), x) | → | app(app(cons, x), app(app(iterate, f), app(f, x))) |
Termination of terms over the following signature is verified: app, iterate, cons