This file is indexed.

/usr/lib/x86_64-linux-gnu/libsingular-gfan.so is in libsingular4-dev 1:4.0.3-p3+ds-5.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libsingular-gfan.so.0.0.0