Program: 161786
Project: 161786
Buggy source:
@Override protected void toBNF(GrammarToBNF grammarToBNF,StringBuilder sb,boolean isNested){
  boolean isUsingMultiplicationTokens=grammarToBNF.isUsingMultiplicationTokens();
  if (maxRepetitionCount == null) {
    if (minRepetitionCount > 0) {
      if (minRepetitionCount == 1 && isUsingMultiplicationTokens) {
        expression.toBNF(grammarToBNF,sb,true);
        sb.append("String_Node_Str");
      }
 else {
        if (isNested) {
          sb.append("String_Node_Str");
        }
        if (minRepetitionCount > 1) {
          sb.append(minRepetitionCount);
          sb.append("String_Node_Str");
        }
        expression.toBNF(grammarToBNF,sb,false);
        if (grammarToBNF.isCommaSeparator()) {
          sb.append("String_Node_Str");
        }
        sb.append("String_Node_Str");
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
        sb.append("String_Node_Str");
        if (isNested) {
          sb.append("String_Node_Str");
        }
      }
    }
 else {
      if (isUsingMultiplicationTokens) {
        expression.toBNF(grammarToBNF,sb,true);
        sb.append("String_Node_Str");
      }
 else {
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
        sb.append("String_Node_Str");
      }
    }
  }
 else {
    if (minRepetitionCount == 0) {
      if (maxRepetitionCount == 1 && isUsingMultiplicationTokens) {
        expression.toBNF(grammarToBNF,sb,true);
        sb.append("String_Node_Str");
      }
 else {
        if (maxRepetitionCount > 1) {
          sb.append(maxRepetitionCount);
          sb.append("String_Node_Str");
        }
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
        sb.append("String_Node_Str");
      }
    }
 else {
      if (minRepetitionCount == maxRepetitionCount) {
        sb.append(minRepetitionCount);
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
      }
 else {
        if (isNested) {
          sb.append("String_Node_Str");
        }
        sb.append(minRepetitionCount);
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
        if (grammarToBNF.isCommaSeparator()) {
          sb.append("String_Node_Str");
        }
        sb.append("String_Node_Str");
        sb.append(maxRepetitionCount - minRepetitionCount);
        sb.append("String_Node_Str");
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
        sb.append("String_Node_Str");
        if (isNested) {
          sb.append("String_Node_Str");
        }
      }
    }
  }
}

Fixed version (ground truth):
@Override protected void toBNF(GrammarToBNF grammarToBNF,StringBuilder sb,boolean isNested){
  boolean isUsingMultiplicationTokens=grammarToBNF.isUsingMultiplicationTokens();
  if (maxRepetitionCount == null) {
    if (minRepetitionCount > 0) {
      if (minRepetitionCount == 1 && isUsingMultiplicationTokens) {
        expression.toBNF(grammarToBNF,sb,true);
        sb.append("String_Node_Str");
      }
 else {
        if (isNested) {
          sb.append("String_Node_Str");
        }
        if (minRepetitionCount > 1) {
          sb.append(minRepetitionCount);
          sb.append("String_Node_Str");
        }
        expression.toBNF(grammarToBNF,sb,false);
        if (grammarToBNF.isCommaSeparator()) {
          sb.append("String_Node_Str");
        }
        sb.append("String_Node_Str");
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
        sb.append("String_Node_Str");
        if (isNested) {
          sb.append("String_Node_Str");
        }
      }
    }
 else {
      if (isUsingMultiplicationTokens) {
        expression.toBNF(grammarToBNF,sb,true);
        sb.append("String_Node_Str");
      }
 else {
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
        sb.append("String_Node_Str");
      }
    }
  }
 else {
    if (minRepetitionCount == 0) {
      if (maxRepetitionCount == 1 && isUsingMultiplicationTokens) {
        expression.toBNF(grammarToBNF,sb,true);
        sb.append("String_Node_Str");
      }
 else {
        if (maxRepetitionCount > 1) {
          sb.append(maxRepetitionCount);
          sb.append("String_Node_Str");
        }
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
        sb.append("String_Node_Str");
      }
    }
 else {
      if (minRepetitionCount == maxRepetitionCount) {
        sb.append(minRepetitionCount);
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,isNested);
      }
 else {
        if (isNested) {
          sb.append("String_Node_Str");
        }
        sb.append(minRepetitionCount);
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
        if (grammarToBNF.isCommaSeparator()) {
          sb.append("String_Node_Str");
        }
        sb.append("String_Node_Str");
        sb.append(maxRepetitionCount - minRepetitionCount);
        sb.append("String_Node_Str");
        sb.append("String_Node_Str");
        expression.toBNF(grammarToBNF,sb,false);
        sb.append("String_Node_Str");
        if (isNested) {
          sb.append("String_Node_Str");
        }
      }
    }
  }
}