MAYBE
(ignored inputs)COMMENT submitted by: Raul Gutierrez secret problem 2021 category: SRS
Rewrite Rules:
   [ a(b(?x)) -> b(c(?x)),
     a(c(?x)) -> c(a(?x)),
     b(b(?x)) -> a(c(?x)),
     c(b(?x)) -> b(c(?x)),
     c(b(?x)) -> c(c(?x)),
     c(c(?x)) -> c(b(?x)),
     0(1(2(?x))) -> 2(0(1(?x))),
     2(2(2(2(2(2(2(1(1(1(1(2(?x)))))))))))) -> 2(1(2(2(0(1(2(1(1(0(1(0(?x)))))))))))) ]
Apply Direct Methods...
Inner CPs:
   [ a(a(c(?x_2))) = b(c(b(?x_2))),
     a(b(c(?x_3))) = c(a(b(?x_3))),
     a(c(c(?x_4))) = c(a(b(?x_4))),
     a(c(b(?x_5))) = c(a(c(?x_5))),
     c(a(c(?x_2))) = b(c(b(?x_2))),
     c(a(c(?x_2))) = c(c(b(?x_2))),
     c(b(c(?x_3))) = c(b(b(?x_3))),
     c(c(c(?x_4))) = c(b(b(?x_4))),
     0(1(2(1(2(2(0(1(2(1(1(0(1(0(?x_7)))))))))))))) = 2(0(1(2(2(2(2(2(2(1(1(1(1(2(?x_7)))))))))))))),
     b(a(c(?x))) = a(c(b(?x))),
     c(c(b(?x))) = c(b(c(?x))),
     2(2(2(2(2(2(2(1(1(1(1(2(1(2(2(0(1(2(1(1(0(1(0(?x))))))))))))))))))))))) = 2(1(2(2(0(1(2(1(1(0(1(0(2(2(2(2(2(2(1(1(1(1(2(?x))))))))))))))))))))))) ]
Outer CPs:
   [ b(c(?x_3)) = c(c(?x_3)) ]
Linear
(inner) Parallel CPs: (not computed)
unknown Toyama (Parallel CPs)
Direct Methods: Can't judge

Combined result: Can't judge
1156.trs: Failure(unknown CR)
(1 msec.)