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

Make it flat:
   [ h(!cl_2,!cl_8) -> a,
     !cl_8 -> !cl_8,
     f(!cl_7) -> !cl_8,
     !cl_6 -> !cl_6,
     f(!cl_5) -> !cl_6,
     !cl_4 -> !cl_4,
     h(!cl_3,b) -> !cl_4,
     !cl_2 -> !cl_2,
     h(!cl_1,a) -> !cl_2,
     a -> c,
     b -> h(c,!cr_0),
     !cr_0 -> f(b),
     !cl_0 -> !cl_0,
     f(a) -> !cl_0,
     c -> h(!cr_4,!cr_5),
     !cr_5 -> f(b),
     !cr_4 -> f(!cr_3),
     !cr_3 -> h(c,!cr_2),
     !cr_2 -> f(!cr_1),
     !cr_1 -> f(c),
     h(!cl_0,a) -> !cl_1,
     !cl_1 -> !cl_1,
     f(b) -> !cl_3,
     !cl_3 -> !cl_3,
     h(!cl_4,b) -> !cl_5,
     !cl_5 -> !cl_5,
     f(!cl_6) -> !cl_7,
     !cl_7 -> !cl_7 ]
Time: 0.002 [s]

Make it Complete (R^):
   [ c = h(!cl_2,!cl_8),
     h(!cl_2,!cl_8) = h(!cr_4,!cr_0),
     h(!cl_2,!cl_8) = h(!cr_4,!cl_3),
     h(!cl_2,!cl_8) = h(!cr_4,!cr_5),
     h(!cl_2,!cl_8) = a,
     f(!cl_7) = !cl_8,
     f(!cl_5) = !cl_6,
     h(!cr_5,b) = !cl_4,
     h(!cr_5,b) = h(!cr_0,b),
     h(!cr_5,b) = h(!cl_3,b),
     h(!cr_0,b) = h(!cl_3,b),
     h(!cr_0,b) = !cl_4,
     h(!cl_3,b) = !cl_4,
     h(!cl_1,c) = h(!cl_1,a),
     h(!cl_1,c) = !cl_2,
     h(!cl_1,a) = !cl_2,
     f(a) = !cr_1,
     h(a,!cr_2) = h(c,!cr_2),
     h(a,!cr_2) = !cr_3,
     a = h(!cr_4,!cr_5),
     a = h(!cr_4,!cl_3),
     a = h(!cr_4,!cr_0),
     h(a,!cr_0) = b,
     h(a,!cl_3) = b,
     h(a,!cr_0) = h(c,!cl_3),
     h(a,!cl_3) = h(c,!cr_0),
     h(a,!cr_0) = h(c,!cr_5),
     h(a,!cr_0) = h(c,!cr_0),
     h(a,!cr_5) = h(c,!cr_0),
     h(a,!cl_3) = h(c,!cr_5),
     h(a,!cr_0) = h(a,!cl_3),
     h(a,!cr_0) = h(a,!cr_5),
     h(a,!cl_3) = h(a,!cr_5),
     h(a,!cl_3) = h(c,!cl_3),
     h(a,!cr_5) = h(c,!cl_3),
     h(a,!cr_5) = h(c,!cr_5),
     h(a,!cr_5) = b,
     h(!cl_0,c) = !cl_1,
     f(c) = f(a),
     f(!cl_0) = f(!cr_1),
     f(!cl_0) = !cr_2,
     h(!cr_1,c) = !cl_1,
     h(!cl_0,c) = h(!cr_1,a),
     h(!cl_0,c) = h(!cr_1,c),
     h(!cr_1,a) = h(!cr_1,c),
     h(!cl_0,c) = h(!cl_0,a),
     h(!cr_1,c) = h(!cl_0,a),
     h(!cr_1,a) = h(!cl_0,a),
     h(!cr_1,a) = !cl_1,
     !cl_0 = !cr_1,
     f(c) = !cl_0,
     a = c,
     h(c,!cr_5) = b,
     h(c,!cr_5) = h(c,!cl_3),
     h(c,!cr_5) = h(c,!cr_0),
     h(c,!cl_3) = h(c,!cr_0),
     h(c,!cl_3) = b,
     b = h(c,!cr_0),
     !cr_0 = !cl_3,
     h(!cr_4,!cr_0) = c,
     h(!cr_4,!cr_5) = h(!cr_4,!cr_0),
     h(!cr_4,!cr_0) = h(!cr_4,!cl_3),
     !cr_0 = !cr_5,
     !cr_0 = f(b),
     f(a) = !cl_0,
     h(!cr_4,!cl_3) = h(!cr_4,!cr_5),
     h(!cr_4,!cl_3) = c,
     c = h(!cr_4,!cr_5),
     !cr_5 = !cl_3,
     !cr_5 = f(b),
     !cr_4 = f(!cr_3),
     !cr_3 = h(c,!cr_2),
     !cr_2 = f(!cr_1),
     !cr_1 = f(c),
     h(!cl_0,a) = !cl_1,
     f(b) = !cl_3,
     h(!cl_4,b) = !cl_5,
     f(!cl_6) = !cl_7 ]
Time: 0.054 [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: 0.062 [s]

problems/686.trs: Success(UNC)
real 0.09
user 0.07
sys 0.01