This file is indexed.

/usr/lib/x86_64-linux-gnu/gambit4/libgambitgsi.so is in libgambit4-dev 4.8.8-3.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/gambit4/libgambitgsi.so.4