MAYBE
by ttt2 (version ttt2 1.15)
The rewrite relation of the following TRS is considered.
a(a(a(a(x0)))) | → | b(b(c(c(x0)))) |
b(b(b(b(x0)))) | → | a(a(c(c(x0)))) |
c(c(c(c(x0)))) | → | b(a(a(a(x0)))) |
a(a(a(a(x0)))) | → | b(b(c(c(x0)))) |
b(b(b(b(x0)))) | → | a(a(c(c(x0)))) |
c(c(c(c(x0)))) | → | b(a(a(a(x0)))) |