/usr/lib/x86_64-linux-gnu/ada/adalib/ is in libalog3-dev 0.5.2-3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-active_logger.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-controlled_map.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-exceptions.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-facilities-file_descriptor.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-facilities-syslog.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-facilities.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-helpers.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-log_request.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-logger.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-maps.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-policy_db-types.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-policy_db.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-protected_containers.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-tasked_logger.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-transforms-casing.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog-transforms.ali
/usr/lib/x86_64-linux-gnu/ada/adalib/alog/alog.ali