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

Make it flat:
   [ h(!cl_19,!cl_20) -> f(a),
     !cl_20 -> !cl_20,
     h(c,a) -> !cl_20,
     !cl_18 -> !cl_18,
     h(!cl_13,!cl_17) -> !cl_18,
     !cl_16 -> !cl_16,
     h(!cl_15,c) -> !cl_16,
     f(a) -> !cl_14,
     !cl_12 -> !cl_12,
     h(!cl_10,!cl_11) -> !cl_12,
     !cl_10 -> !cl_10,
     h(!cl_3,!cl_9) -> !cl_10,
     !cl_8 -> !cl_8,
     h(b,!cl_7) -> !cl_8,
     !cl_6 -> !cl_6,
     f(!cl_5) -> !cl_6,
     !cl_4 -> !cl_4,
     h(c,b) -> !cl_4,
     !cl_2 -> !cl_2,
     h(c,!cl_1) -> !cl_2,
     b -> f(b),
     b -> f(b),
     !cl_0 -> !cl_0,
     f(c) -> !cl_0,
     c -> h(b,b),
     h(!cl_0,b) -> !cl_1,
     !cl_1 -> !cl_1,
     h(a,!cl_2) -> !cl_3,
     !cl_3 -> !cl_3,
     f(!cl_4) -> !cl_5,
     !cl_5 -> !cl_5,
     h(!cl_6,a) -> !cl_7,
     !cl_7 -> !cl_7,
     h(b,!cl_8) -> !cl_9,
     !cl_9 -> !cl_9,
     h(a,a) -> !cl_11,
     h(!cl_12,b) -> !cl_13,
     !cl_13 -> !cl_13,
     h(!cl_14,a) -> !cl_15,
     f(!cl_16) -> !cl_17,
     !cl_17 -> !cl_17,
     h(!cl_18,a) -> !cl_19,
     !cl_19 -> !cl_19 ]
Time: 0.017 [s]

Make it Complete (R^):
   [ h(!cl_19,!cl_20) = !cl_14,
     h(!cl_19,!cl_20) = f(a),
     h(c,a) = !cl_20,
     h(!cl_13,!cl_17) = !cl_18,
     h(!cl_15,c) = !cl_16,
     f(a) = !cl_14,
     h(!cl_10,!cl_11) = !cl_12,
     h(!cl_3,!cl_9) = !cl_10,
     h(b,!cl_7) = !cl_8,
     f(!cl_5) = !cl_6,
     h(c,b) = !cl_4,
     h(c,!cl_1) = !cl_2,
     b = f(b),
     f(c) = !cl_0,
     c = h(b,b),
     h(!cl_0,b) = !cl_1,
     h(a,!cl_2) = !cl_3,
     f(!cl_4) = !cl_5,
     h(!cl_6,a) = !cl_7,
     h(b,!cl_8) = !cl_9,
     h(a,a) = !cl_11,
     h(!cl_12,b) = !cl_13,
     h(!cl_14,a) = !cl_15,
     f(!cl_16) = !cl_17,
     h(!cl_18,a) = !cl_19 ]
Time: 0.002 [s]

CPNF:
   [ !cl_11 … !cl_11,
     !cl_14 … !cl_14,
     !cl_15 … !cl_15,
     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: 0.020 [s]

problems/651.trs: Success(UNC)
real 0.04
user 0.03
sys 0.01