MAYBE
(ignored inputs)COMMENT doi:10.1016/j.ic.2016.06.011 [76] Example 28
input TRS:
   [ c -> f(a,b),
     c -> f(a,a),
     f(?x,?x) -> ?x,
     f(?x,?y) -> f(?y,?x),
     f(a,a) -> f(b,b),
     f(b,b) -> f(a,a) ]
TRS:
   [ c -> f(a,b),
     c -> f(a,a),
     f(?x,?x) -> ?x,
     f(?x,?y) -> f(?y,?x),
     f(a,a) -> f(b,b),
     f(b,b) -> f(a,a) ]
unknown UNC Completion (Development Closed)
problems/392.trs: Failure(unknown UNC)
(0 msec.)