MAYBE
(ignored inputs)COMMENT submitted by: Johannes Waldmann secret problem 2019 category: SRS
input TRS:
   [ b(?x) -> b(a(b(?x))),
     a(?x) -> c(a(a(?x))),
     b(?x) -> a(c(a(?x))),
     c(?x) -> c(a(c(?x))),
     b(?x) -> a(c(b(?x))) ]
TRS:
   [ b(?x) -> b(a(b(?x))),
     a(?x) -> c(a(a(?x))),
     b(?x) -> a(c(a(?x))),
     c(?x) -> c(a(c(?x))),
     b(?x) -> a(c(b(?x))) ]
New rules by rule reversing:
   [ b(?x) -> b(?x),
     b(a(b(?x))) -> b(?x),
     a(?x) -> a(?x),
     c(a(a(?x))) -> a(?x),
     b(?x) -> b(?x),
     a(c(a(?x))) -> b(?x),
     c(?x) -> c(?x),
     c(a(c(?x))) -> c(?x),
     b(?x) -> b(?x),
     a(c(b(?x))) -> b(?x) ]
unknown UNC Completion (Development Closed)
problems/1131.trs: Failure(unknown UNC)
(944 msec.)