MAYBE
(ignored inputs)COMMENT doi:10.4230/LIPIcs.RTA.2012.165 [37] Example 3.1 ( R )
input TRS:
   [ a -> b,
     a -> f(a),
     b -> f(f(b)) ]
TRS:
   [ a -> b,
     a -> f(a),
     b -> f(f(b)) ]
New rules by rule reversing:
   [ a -> b,
     f(a) -> a,
     b -> b,
     f(f(b)) -> b ]
Check distinct normal forms in critical pair closure...failed
problems/212.trs: Failure(unknown UNC)
(4 msec.)