MAYBE

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

Proof:
 RT Transformation Processor:
  strict:
   a(a(x1)) -> b(x1)
   b(a(c(x1))) -> c(c(a(a(a(a(x1))))))
  weak:
   
  Matrix Interpretation Processor:
   dimension: 1
   interpretation:
    [c](x0) = x0 + 16,
    
    [b](x0) = x0,
    
    [a](x0) = x0 + 2
   orientation:
    a(a(x1)) = x1 + 4 >= x1 = b(x1)
    
    b(a(c(x1))) = x1 + 18 >= x1 + 40 = c(c(a(a(a(a(x1))))))
   problem:
    strict:
     b(a(c(x1))) -> c(c(a(a(a(a(x1))))))
    weak:
     a(a(x1)) -> b(x1)
   Open