LTL_FUTEX_WAIT
ltl_atom_update(current, LTL_FUTEX_WAIT, true);
ltl_atom_set(mon, LTL_FUTEX_WAIT, false);
ltl_atom_set(mon, LTL_FUTEX_WAIT, false);
ltl_atom_set(mon, LTL_FUTEX_WAIT, false);
bool futex_wait = test_bit(LTL_FUTEX_WAIT, mon->atoms);
bool futex_wait = test_bit(LTL_FUTEX_WAIT, mon->atoms);