This file is indexed.

/usr/lib/libmrpt-hmtslam.so.1.0 is in libmrpt-hmtslam1.0 1:1.0.2-1ubuntu1.

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

It is a symlink to /usr/lib/libmrpt-hmtslam.so.1.0.2