/usr/include/boost/statechart/ is in libboost1.62-dev 1.62.0+dfsg-5.
This file is owned by root:root, with mode 0o755.
..
/usr/include/boost/statechart/asynchronous_state_machine.hpp
/usr/include/boost/statechart/custom_reaction.hpp
/usr/include/boost/statechart/deep_history.hpp
/usr/include/boost/statechart/deferral.hpp
/usr/include/boost/statechart/detail/
/usr/include/boost/statechart/detail/avoid_unused_warning.hpp
/usr/include/boost/statechart/detail/constructor.hpp
/usr/include/boost/statechart/detail/counted_base.hpp
/usr/include/boost/statechart/detail/leaf_state.hpp
/usr/include/boost/statechart/detail/memory.hpp
/usr/include/boost/statechart/detail/node_state.hpp
/usr/include/boost/statechart/detail/reaction_dispatcher.hpp
/usr/include/boost/statechart/detail/rtti_policy.hpp
/usr/include/boost/statechart/detail/state_base.hpp
/usr/include/boost/statechart/event.hpp
/usr/include/boost/statechart/event_base.hpp
/usr/include/boost/statechart/event_processor.hpp
/usr/include/boost/statechart/exception_translator.hpp
/usr/include/boost/statechart/fifo_scheduler.hpp
/usr/include/boost/statechart/fifo_worker.hpp
/usr/include/boost/statechart/history.hpp
/usr/include/boost/statechart/in_state_reaction.hpp
/usr/include/boost/statechart/null_exception_translator.hpp
/usr/include/boost/statechart/processor_container.hpp
/usr/include/boost/statechart/result.hpp
/usr/include/boost/statechart/shallow_history.hpp
/usr/include/boost/statechart/simple_state.hpp
/usr/include/boost/statechart/state.hpp
/usr/include/boost/statechart/state_machine.hpp
/usr/include/boost/statechart/termination.hpp
/usr/include/boost/statechart/transition.hpp