This file is indexed.

/usr/lib/x86_64-linux-gnu/libCLHEP.so is in libclhep-dev 2.1.4.1+dfsg-1.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libCLHEP.so.2.1.4.1