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

Make it flat:
   [ a -> a,
     !cr_0 -> f(b),
     !cr_1 -> f(!cr_0),
     !cr_2 -> f(!cr_1),
     !cr_3 -> f(a),
     !cr_4 -> h(b,!cr_3),
     b -> h(!cr_2,!cr_4) ]
Time: 0.000 [s]

Make it Complete (R^):
   [ !cr_0 = f(b),
     !cr_1 = f(!cr_0),
     !cr_2 = f(!cr_1),
     !cr_3 = f(a),
     !cr_4 = h(b,!cr_3),
     b = h(!cr_2,!cr_4) ]
Time: 0.000 [s]

CPNF:
   [  ]
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/649.trs: Success(UNC)
real 0.01
user 0.00
sys 0.01