YES

Problem:
 f(s(x),y,y) -> f(y,x,s(x))

Proof:
 Matrix Interpretation Processor: dim=1
  
  interpretation:
   [f](x0, x1, x2) = 3x0 + x1 + 2x2,
   
   [s](x0) = x0 + 1
  orientation:
   f(s(x),y,y) = 3x + 3y + 3 >= 3x + 3y + 2 = f(y,x,s(x))
  problem:
   
  Qed