/usr/lib/libsmokekdeui.so.3 is in libsmokekdeui4-3 4:4.13.0-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libsmokekdeui.so.3.0.0
/usr/lib/libsmokekdeui.so.3.0.0