This file is indexed.

/usr/lib/x86_64-linux-gnu/libsynthesis.so.0 is in libsynthesis0v5 3.4.0.47.5+syncevolution-1.5.3-1.

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

It is a symlink to /usr/lib/x86_64-linux-gnu/libsynthesis.so.0.6.0