This file is indexed.

/usr/lib/dovecot/libdovecot-sieve.so is in dovecot-sieve 1:2.2.27-3+deb9u2.

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

It is a symlink to /usr/lib/dovecot/libdovecot-sieve.so.0.0.0