MAYBE
(ignored inputs)COMMENT TPDB SRS_Standard/Waldmann_07_size12/size-12-alpha-3-num-284
input TRS:
   [ a(?x) -> ?x,
     a(b(?x)) -> c(b(b(a(a(?x))))),
     b(?x) -> c(?x),
     c(c(?x)) -> ?x ]
TRS:
   [ a(?x) -> ?x,
     a(b(?x)) -> c(b(b(a(a(?x))))),
     b(?x) -> c(?x),
     c(c(?x)) -> ?x ]
New rules by rule reversing:
   [ a(?x) -> ?x,
     c(b(b(a(a(?x))))) -> a(b(?x)),
     b(?x) -> c(?x),
     c(c(?x)) -> ?x ]
Check distinct normal forms in critical pair closure...failed
problems/960.trs: Failure(unknown UNC)
(0 msec.)