This file is indexed.

/usr/lib/x86_64-linux-gnu/libmiagsl-2.2.so is in libmia-2.2-dev 2.2.2-1+b1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/libmiagsl-2.2.so.0