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 -> h(a,f(b)),
     f(f(h(a,a))) -> f(f(f(a))),
     f(h(a,h(a,a))) -> f(a),
     f(h(h(b,a),h(f(c),c))) -> c ]

Make it flat:
   [ f(!cl_6) -> c,
     f(!cl_5) -> f(a),
     !cl_6 -> !cl_6,
     h(!cl_0,!cl_4) -> !cl_6,
     f(!cl_3) -> f(!cr_2),
     h(!cl_2,c) -> !cl_4,
     f(c) -> !cl_2,
     !cr_2 -> f(!cr_1),
     !cr_1 -> f(a),
     a -> h(a,!cr_0),
     !cr_0 -> f(b),
     !cl_0 -> !cl_0,
     h(b,a) -> !cl_0,
     h(a,a) -> !cl_1,
     !cl_1 -> !cl_1,
     f(!cl_1) -> !cl_3,
     !cl_3 -> !cl_3,
     h(a,!cl_1) -> !cl_5,
     !cl_5 -> !cl_5 ]
Time: 0.000 [s]

Make it Complete (R^):
   [ f(!cl_6) = c,
     f(!cl_5) = !cr_1,
     f(!cl_5) = f(a),
     h(!cl_0,!cl_4) = !cl_6,
     f(!cl_3) = f(!cr_2),
     h(!cl_2,c) = !cl_4,
     f(c) = !cl_2,
     !cr_2 = f(!cr_1),
     !cr_1 = f(a),
     a = h(a,!cr_0),
     !cr_0 = f(b),
     h(b,a) = !cl_0,
     h(a,a) = !cl_1,
     f(!cl_1) = !cl_3,
     h(a,!cl_1) = !cl_5 ]
Time: 0.001 [s]

CPNF:
   [ !cr_0 … f(b),
     !cl_4 … !cl_4,
     c … c,
     !cl_2 … !cl_2,
     b … b ]
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: 0.002 [s]

problems/716.trs: Success(UNC)
real 0.01
user 0.01
sys 0.00