code: def SMOD(self, a, b):
          
          s0, s1 = to_signed(a), to_signed(b)
          sign = Operators.ITEBV(256, s0 < 0, -1, 1)
          try:
              result = (Operators.ABS(s0) % Operators.ABS(s1)) * sign
          except ZeroDivisionError:
              result = 0
  
          return Operators.ITEBV(256, s1 == 0, 0, result)
docs: Signed modulo remainder operation