/usr/lib/x86_64-linux-gnu/libtercpp.so is in libtercpp-dev 0.6.2+svn46-1.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libtercpp.so.0
/usr/lib/x86_64-linux-gnu/libtercpp.so.0