MAYBE
The TRS could not be proven terminating. The proof attempt took 16761 ms.
Problem 1 remains open; application of the following processors failed [DependencyGraph (30ms), SubtermCriterion (1ms), DependencyGraph (13ms), PolynomialLinearRange4iUR (704ms), DependencyGraph (16ms), PolynomialLinearRange8NegiUR (2098ms), DependencyGraph (8ms), ReductionPairSAT (13642ms), DependencyGraph (31ms), SizeChangePrinciple (15ms)].
app#(app(rec, h), app(g, app(s, x))) | → | app#(rec, h) | app#(app(rec, h), app(g, app(s, x))) | → | app#(app(rec, h), app(g, x)) | |
app#(app(rec, h), app(g, app(s, x))) | → | app#(h, x) | app#(app(rec, h), app(g, app(s, x))) | → | app#(g, x) | |
app#(app(rec, h), app(g, app(s, x))) | → | app#(app(h, x), app(app(rec, h), app(g, x))) |
app(app(rec, h), app(g, 0)) | → | g | app(app(rec, h), app(g, app(s, x))) | → | app(app(h, x), app(app(rec, h), app(g, x))) |
Termination of terms over the following signature is verified: app, rec, 0, s