This file is indexed.

/usr/lib/x86_64-linux-gnu/libcloog-isl.so is in libcloog-isl-dev 0.18.2-1+b2.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libcloog-isl.so.4.0.0