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

Make it flat:
   [ h(!cl_4,a) -> h(!cr_6,c),
     !cl_4 -> !cl_4,
     h(a,!cl_3) -> !cl_4,
     !cr_6 -> h(!cr_5,b),
     !cr_5 -> f(!cr_4),
     !cr_4 -> h(c,!cr_3),
     !cr_3 -> h(c,!cr_2),
     !cr_2 -> f(b),
     h(!cl_1,b) -> f(!cr_1),
     !cl_2 -> !cl_2,
     f(!cl_0) -> !cl_2,
     !cr_1 -> f(!cr_0),
     !cr_0 -> h(b,c),
     b -> b,
     c -> a,
     !cl_0 -> !cl_0,
     f(a) -> !cl_0,
     a -> h(!cr_11,a),
     !cr_11 -> h(!cr_8,!cr_10),
     !cr_10 -> f(!cr_9),
     !cr_9 -> h(a,a),
     !cr_8 -> f(!cr_7),
     !cr_7 -> h(b,c),
     h(b,c) -> !cl_1,
     !cl_1 -> !cl_1,
     f(!cl_2) -> !cl_3,
     !cl_3 -> !cl_3 ]
Time: 0.001 [s]

Make it Complete (R^):
   [ h(!cr_6,a) = h(!cl_4,a),
     h(!cr_6,a) = h(!cr_6,c),
     h(!cr_6,a) = h(!cl_4,c),
     h(!cl_4,c) = h(!cl_4,a),
     h(!cl_4,c) = h(!cr_6,c),
     h(!cl_4,a) = h(!cr_6,c),
     h(c,!cl_3) = h(a,!cl_3),
     h(c,!cl_3) = !cl_4,
     h(a,!cl_3) = !cl_4,
     !cr_6 = h(!cr_5,b),
     !cr_5 = f(!cr_4),
     h(a,!cr_3) = h(c,!cr_3),
     h(a,!cr_3) = !cr_4,
     !cr_4 = h(c,!cr_3),
     h(a,!cr_2) = h(c,!cr_2),
     h(a,!cr_2) = !cr_3,
     !cr_3 = h(c,!cr_2),
     !cr_2 = f(b),
     f(!cr_8) = h(!cl_1,b),
     h(!cr_7,b) = f(!cr_1),
     h(!cr_7,b) = f(!cr_8),
     f(!cr_8) = f(!cr_1),
     f(!cr_8) = h(!cr_0,b),
     h(!cr_7,b) = h(!cr_0,b),
     h(!cr_7,b) = h(!cl_1,b),
     h(!cr_0,b) = h(!cl_1,b),
     h(!cr_0,b) = f(!cr_1),
     h(!cl_1,b) = f(!cr_1),
     f(!cl_0) = !cl_2,
     f(!cr_7) = !cr_1,
     f(!cl_1) = !cr_1,
     h(!cr_1,!cr_10) = h(!cr_8,!cr_10),
     h(!cr_1,!cr_10) = !cr_11,
     !cr_1 = !cr_8,
     !cr_1 = f(!cr_0),
     h(b,a) = !cr_0,
     !cr_0 = !cl_1,
     f(!cr_0) = !cr_8,
     f(!cr_7) = f(!cr_0),
     f(!cr_0) = f(!cl_1),
     !cr_0 = !cr_7,
     !cr_0 = h(b,c),
     h(a,c) = !cr_9,
     h(c,c) = !cr_9,
     h(a,c) = h(c,a),
     h(a,c) = h(c,c),
     h(c,a) = h(c,c),
     h(a,c) = h(a,a),
     h(c,c) = h(a,a),
     h(c,a) = h(a,a),
     h(c,a) = !cr_9,
     h(!cr_11,c) = a,
     h(!cr_11,c) = h(!cr_11,a),
     h(!cr_11,c) = c,
     c = h(!cr_11,a),
     f(c) = f(a),
     f(c) = !cl_0,
     h(b,a) = !cl_1,
     h(b,a) = h(b,c),
     h(b,a) = !cr_7,
     c = a,
     f(a) = !cl_0,
     a = h(!cr_11,a),
     !cr_11 = h(!cr_8,!cr_10),
     !cr_10 = f(!cr_9),
     !cr_9 = h(a,a),
     f(!cl_1) = f(!cr_7),
     f(!cl_1) = !cr_8,
     !cr_8 = f(!cr_7),
     !cr_7 = !cl_1,
     !cr_7 = h(b,c),
     h(b,c) = !cl_1,
     f(!cl_2) = !cl_3 ]
Time: 0.020 [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: 0.024 [s]

problems/659.trs: Success(UNC)
real 0.06
user 0.04
sys 0.00