genList2 = RapierGeneralizationHelper.getGeneralizationsForRuleItemPatterns(
consideredPreFiller1, consideredPreFiller2);
// 3. n vs. n (n elements of baserule1, n of baserule2)
consideredPreFiller1.clear();
consideredPreFiller2.clear();
for (int i = preFiller1.size() - n; i >= 0 && i <= preFiller1MaxIndex; i++)
consideredPreFiller1.add(preFiller1.get(i));
for (int i = preFiller2.size() - n; i >= 0 && i <= preFiller2MaxIndex; i++)
consideredPreFiller2.add(preFiller2.get(i));
if (consideredPreFiller1.size() + consideredPreFiller2.size() > 0)