/usr/lib/x86_64-linux-gnu/libimobiledevice.so is in libimobiledevice-dev 1.1.5+git20140313.bafe6a9e-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libimobiledevice.so.4.0.1