Examples with SmtReachabilityAnswerElement org.batfish.symbolic.answers.SmtReachabilityAnswerElement used on opensource projects

Example 1 with SmtReachabilityAnswerElement

use of org.batfish.symbolic.answers.SmtReachabilityAnswerElement in project batfish by batfish.

the class PropertyChecker method checkReachability.

/*
   * Check if a collection of routers will be reachable to
   * one or more destinations.
   */
public AnswerElement checkReachability(HeaderLocationQuestion q) {
    return checkProperty(q, (enc, srcRouters, destPorts) -> {
        PropertyAdder pa = new PropertyAdder(enc.getMainSlice());
        return pa.instrumentReachability(destPorts);
    }, (vp) -> {
        if (vp.getResult().isVerified()) {
            return new SmtReachabilityAnswerElement(vp.getResult(), new FlowHistory());
        } else {
            FlowHistory fh;
            CounterExample ce = new CounterExample(vp.getModel());
            String testrigName = _batfish.getTestrigName();
            if (q.getDiffType() != null) {
                fh = ce.buildFlowHistoryDiff(testrigName, vp.getSrcRouters(), vp.getEnc(), vp.getEncDiff(), vp.getProp(), vp.getPropDiff());
            } else {
                Map<String, Boolean> reachVals = vp.getProp().entrySet().stream().collect(Collectors.toMap(Map.Entry::getKey, entry -> ce.isTrue(entry.getValue()) ^ q.getNegate()));
                fh = ce.buildFlowHistory(testrigName, vp.getSrcRouters(), vp.getEnc(), reachVals);
            }
            return new SmtReachabilityAnswerElement(vp.getResult(), fh);
        }
    });
}