/usr/lib/x86_64-linux-gnu/libics.so is in libics-dev 1.5.2-6.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libics.so.0.0.0
/usr/lib/x86_64-linux-gnu/libics.so.0.0.0