This file is indexed.

/usr/lib/x86_64-linux-gnu/libgrafX11.so is in libgrafx11-1-dev 20061220+dfsg3-4.3ubuntu1.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libgrafX11.so.1_gfortran.2006