Discoverable simulated SVs. Not all SVs are identifiable, as some of them are not covered by any or enough sequence reads. The lengths of the gray and the colored portions of each bar signify the log-number of indels covered by only one and more than one read, respectively. The bars in different shades of green and red are used for the true positive calls of deletion and insertion of different length. A missing bar indicates a zero count. The counts of simulated deletions (A) and insertions (B) that are covered by at least two reads and by only one read are plotted as colored and gray bars.