/usr/lib/libmpi.so.12.0.2 is in libopenmpi1.10 1.10.2-8ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/openmpi/lib/libmpi.so.12.0.2
/usr/lib/openmpi/lib/libmpi.so.12.0.2