/usr/lib/x86_64-linux-gnu/libelpa.so.3 is in libelpa3 2015.05.001-4ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libelpa.so.3.0.1
/usr/lib/x86_64-linux-gnu/libelpa.so.3.0.1