More deep analysis besides the quantitative data reporting is needed. For example,

1. According to Section 4, each bug is categorized into three. Regarding to the first category “disjoint bugs”, the only examples come to my mind is missing statements. Did you check the instances within this category since it is against the core SBFL assumption? Unfortunately, this section presents only the quantitative data without analyzing instances. Without deep analysis, it is not clear to me what can we do with the quantitative data. In other words, what this work brings to our community is not clear.