YES
O(n^3)
TRS:
 {*(x, *(minus(y), y)) -> *(minus(*(y, y)), x)}
 DUP: We consider a non-duplicating system.
  Trs:
   {*(x, *(minus(y), y)) -> *(minus(*(y, y)), x)}
  Matrix Interpretation:
   Interpretation class: triangular
           [X2]    [1 0 0][X2]   [1]
   [minus]([X1]) = [0 0 0][X1] + [0]
           [X0]    [0 0 0][X0]   [1]
   
       [X5]  [X2]    [1 0 1][X5]   [1 0 1][X2]   [0]
   [*]([X4], [X1]) = [0 1 0][X4] + [0 0 0][X1] + [0]
       [X3]  [X0]    [0 0 1][X3]   [0 0 1][X0]   [0]
   
   
   Qed