This file is indexed.

/usr/lib/x86_64-linux-gnu/libpostproc.so.52 is in libpostproc52 4:0.8.1-0ubuntu1.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libpostproc.so.52.0.0