1776030 reads; of these:
  1776030 (100.00%) were paired; of these:
    820180 (46.18%) aligned concordantly 0 times
    834393 (46.98%) aligned concordantly exactly 1 time
    121457 (6.84%) aligned concordantly >1 times
    ----
    820180 pairs aligned concordantly 0 times; of these:
      158247 (19.29%) aligned discordantly 1 time
    ----
    661933 pairs aligned 0 times concordantly or discordantly; of these:
      1323866 mates make up the pairs; of these:
        729159 (55.08%) aligned 0 times
        485924 (36.70%) aligned exactly 1 time
        108783 (8.22%) aligned >1 times
79.47% overall alignment rate
[bam_sort_core] merging from 1 files and 1 in-memory blocks...