MAYBE
(ignored inputs)COMMENT from experiments for [44] submitted by: Tsubasa Suzuki , Takahito Aoto , and Yoshihito Toyama
input TRS:
   [ a -> f(a),
     a -> g(h(a)),
     f(?x) -> h(g(?x)),
     h(?x) -> f(g(?x)) ]
TRS:
   [ a -> f(a),
     a -> g(h(a)),
     f(?x) -> h(g(?x)),
     h(?x) -> f(g(?x)) ]
New rules by rule reversing:
   [ a -> a,
     f(a) -> a,
     a -> a,
     g(h(a)) -> a,
     f(?x) -> f(?x),
     h(g(?x)) -> f(?x),
     h(?x) -> h(?x),
     f(g(?x)) -> h(?x) ]
Check distinct normal forms in critical pair closure...failed
problems/246.trs: Failure(unknown UNC)
(0 msec.)