store.updateGraph(source, graph1);
clock.setTime(date1b);
store.assertGraph(source, graph1b);
store = reGetStoreImpl();
clock.setTime(date2);
store.revokeGraph(source, graph2);
FCAGraph graphR = store.getGraphOverTime(Collections.singleton(source)).getGraph(dateFormat.parse("20060913"));
//no exception retrieving graph containing fg-node that doesn't exist the same way as wehn stuff was added
assertTrue(true);
JenaUtil.getModelFromGraph(graphR).write(System.out);
}