/**
* Compute the min/max probability, from the initial state, of reaching a set of target locations.
*/
private double computeProbabilisticReachability(BitSet targetLocs, boolean min)
throws PrismException {
// Determine which method to use for computation
String ptaMethod = prism.getSettings().getString(PrismSettings.PRISM_PTA_METHOD);
// Do probability computation through abstraction/refinement/stochastic games
if (ptaMethod.equals("Stochastic games")) {
PTAAbstractRefine ptaAR;
ptaAR = new PTAAbstractRefine();
String arOptions = prism.getSettings().getString(PrismSettings.PRISM_AR_OPTIONS);
ptaAR.setLog(mainLog);
ptaAR.parseOptions(arOptions.split(","));
return ptaAR.forwardsReachAbstractRefine(pta, targetLocs, null, min);
}
// Do probability computation by first constructing a bisimulation
else if (ptaMethod.equals("Bisimulation minimisation")) {
// Not supported yet
throw new PrismException("Not yet supported");
} else throw new PrismException("Unknown PTA solution method");
}
