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 -> c,
     b -> f(c),
     c -> c ]
TRS:
   [ b -> c,
     b -> f(c),
     c -> c ]
New rules by rule reversing:
   [ b -> c,
     f(c) -> b,
     c -> c ]
Check distinct normal forms in critical pair closure...failed
problems/684.trs: Failure(unknown UNC)
(4 msec.)