This file is indexed.

/usr/lib/x86_64-linux-gnu/liblbfgsb.so is in liblbfgsb-dev 3.0+dfsg.3-1build1.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/liblbfgsb.so.0