YES
Input TRS:
      1: rev(a()) -> a()
      2: rev(b()) -> b()
      3: rev(++(x,y)) -> ++(rev(y),rev(x))
      4: rev(++(x,x)) -> rev(x)
Number of strict rules: 4
Direct POLO(bPol) ... removes: 4 1 3 2
      a 	w: 21239
      b 	w: 2438
      ++	w: x1 + x2 + 3
      rev	w: 2 * x1 + 2
Number of strict rules: 0