DON'T KNOW

Prover = TRS(tech=GUIDED_UNF, nb_unfoldings=unlimited, unfold_variables=true, strategy=LEFTMOST_NE)

** BEGIN proof description **
## Searching for a generalized rewrite rule
(a rule whose right-hand side contains a variable
that does not occur in the left-hand side)...
No generalized rewrite rule found!

## Searching for a loop by unfolding (unfolding of variable subterms: ON)...
# Iteration 0: no loop detected, 1 unfolded rule generated.
# Iteration 1: no loop detected, 3 unfolded rules generated.
# Iteration 2: no loop detected, 1 unfolded rule generated.
# Iteration 3: no loop detected, 0 unfolded rule generated.
No loop found!

** END proof description **

Proof stopped at iteration 3
Number of unfolded rules generated by this proof = 5
Number of unfolded rules generated by all the parallel proofs = 19