YES
(ignored inputs)COMMENT Cops #647 - #721: generated ground TRSs; evenly distributed in the UNR/UNC/NFP/CR hierarchy submitted by: Bertram Felgenhauer
Input:
   [ h(a,b) -> a,
     f(c) -> f(c),
     c -> h(a,h(b,b)) ]

Make it flat:
   [ h(a,b) -> a,
     f(c) -> f(c),
     !cr_0 -> h(b,b),
     c -> h(a,!cr_0) ]
Time: 0.000 [s]

Make it Complete (R^):
   [ h(a,b) = a,
     !cr_0 = h(b,b),
     c = h(a,!cr_0) ]
Time: 0.000 [s]

CPNF:
   [ c … h(a,h(b,b)),
     !cr_0 … h(b,b),
     b … b,
     a … a ]
Time: 0.000 [s]

Now checking all the pairs in CW...

Time to check pairs: 0.000 [s]

The TRS has Uniqueness of Normal Forms.
Total Time: 0.001 [s]

problems/692.trs: Success(UNC)
real 0.03
user 0.02
sys 0.01