/usr/lib/x86_64-linux-gnu/libixion-0.13.so is in libixion-dev 0.13.0-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libixion-0.13.so.0.0.0
/usr/lib/x86_64-linux-gnu/libixion-0.13.so.0.0.0