/usr/lib/x86_64-linux-gnu/liblxc.so.1 is in liblxc1 2.0.7-0ubuntu1~16.04.2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/liblxc.so.1.2.0
/usr/lib/x86_64-linux-gnu/liblxc.so.1.2.0