GParted 0.11.0 --enable-libparted-dmraid

Libparted 2.3
Shrink /dev/sda4 from 254.35 GiB to 195.34 GiB  00:00:00    ( ERROR )

calibrate /dev/sda4  00:00:00    ( SUCCESS )

path: /dev/sda4
start: 8,42,11,712
end: 61,76,29,695
size: 53,34,17,984 (254.35 GiB)
check file system on /dev/sda4 for errors and (if possible) fix them  00:00:00    ( ERROR )

btrfsck /dev/sda4

couldn't open because of unsupported option features (8).
btrfsck: disk-io.c:679: open_ctree_fd: Assertion `!(1)' failed.
Aborted (core dumped)