This file is indexed.

/usr/lib/x86_64-linux-gnu/libsl.so.0 is in libsl0-heimdal 1.7~git20150920+dfsg-4ubuntu1.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libsl.so.0.2.1