MAYBE

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

Proof:
 RT Transformation Processor:
  strict:
   a(b(b(x1))) -> b(b(a(a(x1))))
   a(a(x1)) -> b(x1)
  weak:
   
  Matrix Interpretation Processor:
   dimension: 1
   interpretation:
    [a](x0) = x0 + 2,
    
    [b](x0) = x0 + 1
   orientation:
    a(b(b(x1))) = x1 + 4 >= x1 + 6 = b(b(a(a(x1))))
    
    a(a(x1)) = x1 + 4 >= x1 + 1 = b(x1)
   problem:
    strict:
     a(b(b(x1))) -> b(b(a(a(x1))))
    weak:
     a(a(x1)) -> b(x1)
   Open