/usr/include/BALL/SYSTEM/ is in libball1.4-dev 1.4.3~beta1-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/BALL/SYSTEM/MPISupport.h
/usr/include/BALL/SYSTEM/binaryFileAdaptor.h
/usr/include/BALL/SYSTEM/binaryFileAdaptor.iC
/usr/include/BALL/SYSTEM/directory.h
/usr/include/BALL/SYSTEM/directory.iC
/usr/include/BALL/SYSTEM/file.h
/usr/include/BALL/SYSTEM/file.iC
/usr/include/BALL/SYSTEM/fileSystem.h
/usr/include/BALL/SYSTEM/mutex.h
/usr/include/BALL/SYSTEM/networking.h
/usr/include/BALL/SYSTEM/path.h
/usr/include/BALL/SYSTEM/simpleDownloader.h
/usr/include/BALL/SYSTEM/sources.cmake
/usr/include/BALL/SYSTEM/sysinfo.h
/usr/include/BALL/SYSTEM/system.doc
/usr/include/BALL/SYSTEM/systemCalls.h
/usr/include/BALL/SYSTEM/timer.h
/usr/include/BALL/SYSTEM/timer.iC