Pass 1: Checking inodes, blocks, and sizes

Running additional passes to resolve blocks claimed by more than one inode...
Pass 1B: Rescanning for multiply-claimed blocks
Multiply-claimed block(s) in inode 12: 9
Multiply-claimed block(s) in inode 13: 9
Pass 1C: Scanning directories for inodes with multiply-claimed blocks
Pass 1D: Reconciling multiply-claimed blocks
(There are 2 inodes containing multiply-claimed blocks.)

File /file2.txt (inode #12, mod time Sat Mar  3 02:12:33 2018) 
  has 1 multiply-claimed block(s), shared with 1 file(s):
	/file1.txt (inode #13, mod time Sat Mar  3 02:12:15 2018)
File /file1.txt (inode #13, mod time Sat Mar  3 02:12:15 2018) 
  has 1 multiply-claimed block(s), shared with 1 file(s):
	/file2.txt (inode #12, mod time Sat Mar  3 02:12:33 2018)
Multiply-claimed blocks already reassigned or cloned.

Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information

test_filesys: ***** FILE SYSTEM WAS MODIFIED *****
test_filesys: 13/32 files (0.0% non-contiguous), 13/64 blocks
Exit status is 0
