MAYBE

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

Proof:
 RT Transformation Processor:
  strict:
   a(x1) -> x1
   a(x1) -> b(x1)
   a(b(c(x1))) -> c(c(a(b(a(x1)))))
   b(x1) -> x1
  weak:
   
  Matrix Interpretation Processor:
   dimension: 1
   interpretation:
    [c](x0) = x0 + 11,
    
    [b](x0) = x0 + 17,
    
    [a](x0) = x0 + 8
   orientation:
    a(x1) = x1 + 8 >= x1 = x1
    
    a(x1) = x1 + 8 >= x1 + 17 = b(x1)
    
    a(b(c(x1))) = x1 + 36 >= x1 + 55 = c(c(a(b(a(x1)))))
    
    b(x1) = x1 + 17 >= x1 = x1
   problem:
    strict:
     a(x1) -> b(x1)
     a(b(c(x1))) -> c(c(a(b(a(x1)))))
    weak:
     a(x1) -> x1
     b(x1) -> x1
   Matrix Interpretation Processor:
    dimension: 1
    interpretation:
     [c](x0) = x0 + 2,
     
     [b](x0) = x0 + 2,
     
     [a](x0) = x0 + 4
    orientation:
     a(x1) = x1 + 4 >= x1 + 2 = b(x1)
     
     a(b(c(x1))) = x1 + 8 >= x1 + 14 = c(c(a(b(a(x1)))))
     
     a(x1) = x1 + 4 >= x1 = x1
     
     b(x1) = x1 + 2 >= x1 = x1
    problem:
     strict:
      a(b(c(x1))) -> c(c(a(b(a(x1)))))
     weak:
      a(x1) -> b(x1)
      a(x1) -> x1
      b(x1) -> x1
    Open