/usr/lib/x86_64-linux-gnu/libbabeltrace-lttng-live.so is in libbabeltrace-dev 1.2.3-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libbabeltrace-lttng-live.so.1.0.0
/usr/lib/x86_64-linux-gnu/libbabeltrace-lttng-live.so.1.0.0