exec = (Executive) loadObject("org.mitre.sim.Executive.class");
exec.setProperties(properties);
exec.setFlow(flow);
exec.setSimulation(this);
EventManager event = (EventManager) loadObject("org.mitre.sim.EventManager.class");
exec.setEventManager(event);
LogicalProcess.resetEntityNumber();
if (properties.getProperty("org.mitre.sim.Simulation.suppressVersionPrint")