MAYBE

Problem:
 a(x1) -> x1
 a(b(x1)) -> b(b(c(a(c(x1)))))
 c(c(x1)) -> b(a(x1))

Proof:
 RT Transformation Processor:
  strict:
   a(x1) -> x1
   a(b(x1)) -> b(b(c(a(c(x1)))))
   c(c(x1)) -> b(a(x1))
  weak:
   
  Matrix Interpretation Processor:
   dimension: 1
   interpretation:
    [c](x0) = x0 + 14,
    
    [b](x0) = x0 + 9,
    
    [a](x0) = x0 + 6
   orientation:
    a(x1) = x1 + 6 >= x1 = x1
    
    a(b(x1)) = x1 + 15 >= x1 + 52 = b(b(c(a(c(x1)))))
    
    c(c(x1)) = x1 + 28 >= x1 + 15 = b(a(x1))
   problem:
    strict:
     a(b(x1)) -> b(b(c(a(c(x1)))))
    weak:
     a(x1) -> x1
     c(c(x1)) -> b(a(x1))
   Open