This file is indexed.

/usr/lib/x86_64-linux-gnu/libmrpt-hmtslam.so is in libmrpt-dev 1:1.4.0-7.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libmrpt-hmtslam.so.1.4