/usr/lib/x86_64-linux-gnu/libtrilinos_ifpack2-adapters.so.12 is in libtrilinos-ifpack2-12 12.10.1-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libtrilinos_ifpack2-adapters.so.12.10.1