MAYBE
(ignored inputs)COMMENT Cops #647 - #721: generated ground TRSs; evenly distributed in the UNR/UNC/NFP/CR hierarchy submitted by: Bertram Felgenhauer
input TRS:
   [ b -> f(b),
     f(a) -> f(h(h(h(h(c,b),a),f(c)),c)),
     c -> h(f(c),f(h(c,a))),
     c -> f(b) ]
TRS:
   [ b -> f(b),
     f(a) -> f(h(h(h(h(c,b),a),f(c)),c)),
     c -> h(f(c),f(h(c,a))),
     c -> f(b) ]
problems/660.trs: Failure(unknown UNC)
(0 msec.)