This file is indexed.

/usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so is in libgtk2.0-dev 2.24.32-1ubuntu1.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0.2400.32