NO Termination proof of ex7.trs

(0) Obligation:

Relative term rewrite system:
The relative TRS consists of the following R rules:

f(s(x)) → f(x)

The relative TRS consists of the following S rules:

infs(inf)

(1) RelTRSLoopFinderProof (COMPLETE transformation)

The following loop was found:

---------- Loop: ----------

f(inf) → f(s(inf)) with rule infs(inf) at position [0] and matcher [ ]

f(s(inf)) → f(inf) with rule f(s(x)) → f(x) at position [] and matcher [x / inf]

Now an instance of the first term with Matcher [ ] occurs in the last term at position [].

Context: []

Therefore, the relative TRS problem does not terminate.

(2) NO