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:
   [ a -> c,
     a -> h(c,a),
     h(b,f(c)) -> b,
     c -> h(a,h(h(b,a),a)) ]
TRS:
   [ a -> c,
     a -> h(c,a),
     h(b,f(c)) -> b,
     c -> h(a,h(h(b,a),a)) ]
unknown Right-Reducible
problems/668.trs: Failure(unknown UNC)
(0 msec.)