/usr/include/bulletml/ is in libbulletml-dev 0.0.6-6.
This file is owned by root:root, with mode 0o755.
..
/usr/include/bulletml/auto_ptr_fix.h
/usr/include/bulletml/bulletmlcommon.h
/usr/include/bulletml/bulletmlerror.h
/usr/include/bulletml/bulletmlparser-tinyxml.h
/usr/include/bulletml/bulletmlparser-xerces.h
/usr/include/bulletml/bulletmlparser-ygg.h
/usr/include/bulletml/bulletmlparser.h
/usr/include/bulletml/bulletmlrunner.h
/usr/include/bulletml/bulletmlrunnerimpl.h
/usr/include/bulletml/bulletmltree.h
/usr/include/bulletml/calc.h
/usr/include/bulletml/formula-variables.h
/usr/include/bulletml/formula.h
/usr/include/bulletml/tinyxml/
/usr/include/bulletml/tinyxml/tinyxml.h
/usr/include/bulletml/tree.h