/usr/lib/x86_64-linux-gnu/lorene/Lib/liblorene_export.so is in liblorene-dev 0.0.0~cvs20161116+dfsg-1ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/lorene/Lib/../../liblorene_export-debian.so.0