- XBT_DEBUG("Actor '%s'@%s is killing actor '%s'@%s", get_cname(), host_->get_cname(), actor->get_cname(),
- actor->host_->get_cname());
+ XBT_DEBUG("Actor '%s'@%s is killing actor '%s'@%s", get_cname(), host_ ? host_->get_cname() : "", actor->get_cname(),
+ actor->host_ ? actor->host_->get_cname() : "");