/usr/lib/x86_64-linux-gnu/libsofa_c.so is in libsofa-c-dev 2013.12.02-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libsofa_c.so.0
/usr/lib/x86_64-linux-gnu/libsofa_c.so.0