}
      } while (!Impl.GUAVA.noAddOverflow(longsToAdd[i][0], longsToAdd[i][1]));
      do {
        for (int j = 0; j < 2; j++) {
          intsToMul[i][j] = randomBigInteger(Integer.SIZE - 2).intValue();
        }
      } while (!Impl.GUAVA.noMulOverflow(intsToMul[i][0], intsToMul[i][1]));
      do {
        for (int j = 0; j < 2; j++) {
          longsToMul[i][j] = randomBigInteger(Long.SIZE - 2).longValue();
        }