* That is, a reset has just been done.
*/
protected void startBuildGraph()
{
assert fsmState != null;
fsmGraph = new IncidenceListGraph();
fsmVertex = new HashMap<Object,Vertex>();
fsmDone = new HashMap<Object,BitSet>();
fsmTodo = new HashMap<Object,BitSet>();
// set up the initial state
Vertex initial = fsmGraph.insertVertex(fsmState);