Examples with Tuple com.dat3m.dartagnan.wmm.utils.Tuple used on opensource projects

Example 31 with Tuple

use of com.dat3m.dartagnan.wmm.utils.Tuple in project Dat3M by hernanponcedeleon.

the class CoreReasoner method toCoreReason.

public Conjunction<CoreLiteral> toCoreReason(Conjunction<CAATLiteral> baseReason) {
    RelationRepository repo = memoryModel.getRelationRepository();
    EventDomain domain = executionGraph.getDomain();
    List<CoreLiteral> coreReason = new ArrayList<>(baseReason.getSize());
    for (CAATLiteral lit : baseReason.getLiterals()) {
        if (lit instanceof ElementLiteral) {
            Event e = domain.getObjectById(((ElementLiteral) lit).getElement().getId()).getEvent();
            // We only have static tags, so all of them reduce to execution literals
            coreReason.add(new ExecLiteral(e, lit.isNegative()));
        } else {
            EdgeLiteral edgeLit = (EdgeLiteral) lit;
            Edge edge = edgeLit.getEdge();
            Event e1 = domain.getObjectById(edge.getFirst()).getEvent();
            Event e2 = domain.getObjectById(edge.getSecond()).getEvent();
            Tuple tuple = new Tuple(e1, e2);
            Relation rel = repo.getRelation(lit.getName());
            if (lit.isPositive() && rel.getMinTupleSet().contains(tuple)) {
                // Statically present edges
                addExecReason(tuple, coreReason);
            } else if (lit.isNegative() && !rel.getMaxTupleSet().contains(tuple)) {
            // Statically absent edges
            } else {
                if (rel instanceof RelFencerel) {
                    // We should do this transformation directly on the Wmm to avoid this special reasoning
                    if (lit.isNegative()) {
                        throw new UnsupportedOperationException(String.format("FenceRel %s is not allowed on the rhs of differences.", rel));
                    }
                    addFenceReason(rel, edge, coreReason);
                } else if (rel.getName().equals(LOC)) {
                    coreReason.add(new AddressLiteral(tuple, lit.isNegative()));
                } else if (rel.getName().equals(RF) || rel.getName().equals(CO)) {
                    coreReason.add(new RelLiteral(rel.getName(), tuple, lit.isNegative()));
                } else {
                    // TODO: Right now, we assume many relations like Data, Ctrl and Addr to be
                    // static.
                    addExecReason(tuple, coreReason);
                }
            }
        }
    }
    minimize(coreReason);
    return new Conjunction<>(coreReason);
}

Example 32 with Tuple

use of com.dat3m.dartagnan.wmm.utils.Tuple in project Dat3M by hernanponcedeleon.

the class RelCo method getMaxTupleSet.

@Override
public TupleSet getMaxTupleSet() {
    if (maxTupleSet == null) {
        logger.info("Computing maxTupleSet for " + getName());
        AliasAnalysis alias = analysisContext.get(AliasAnalysis.class);
        WmmAnalysis wmmAnalysis = analysisContext.get(WmmAnalysis.class);
        maxTupleSet = new TupleSet();
        List<Event> eventsInit = task.getProgram().getCache().getEvents(FilterBasic.get(INIT));
        List<Event> eventsStore = task.getProgram().getCache().getEvents(FilterMinus.get(FilterBasic.get(WRITE), FilterBasic.get(INIT)));
        for (Event e1 : eventsInit) {
            for (Event e2 : eventsStore) {
                if (alias.mayAlias((MemEvent) e1, (MemEvent) e2)) {
                    maxTupleSet.add(new Tuple(e1, e2));
                }
            }
        }
        for (Event e1 : eventsStore) {
            for (Event e2 : eventsStore) {
                if (e1.getCId() != e2.getCId() && alias.mayAlias((MemEvent) e1, (MemEvent) e2)) {
                    maxTupleSet.add(new Tuple(e1, e2));
                }
            }
        }
        removeMutuallyExclusiveTuples(maxTupleSet);
        if (wmmAnalysis.isLocallyConsistent()) {
            applyLocalConsistencyMaxSet();
        }
        logger.info("maxTupleSet size for " + getName() + ": " + maxTupleSet.size());
    }
    return maxTupleSet;
}

Example 33 with Tuple

use of com.dat3m.dartagnan.wmm.utils.Tuple in project Dat3M by hernanponcedeleon.

the class RelCo method applyLocalConsistencyMinSet.

private void applyLocalConsistencyMinSet() {
    for (Tuple t : getMaxTupleSet()) {
        AliasAnalysis alias = analysisContext.get(AliasAnalysis.class);
        MemEvent w1 = (MemEvent) t.getFirst();
        MemEvent w2 = (MemEvent) t.getSecond();
        if (!w1.is(INIT) && alias.mustAlias(w1, w2) && (w1.is(INIT) || t.isForward())) {
            minTupleSet.add(t);
        }
    }
}

Example 34 with Tuple

use of com.dat3m.dartagnan.wmm.utils.Tuple in project Dat3M by hernanponcedeleon.

the class RelLoc method getMinTupleSet.

@Override
public TupleSet getMinTupleSet() {
    if (minTupleSet == null) {
        AliasAnalysis alias = analysisContext.get(AliasAnalysis.class);
        minTupleSet = new TupleSet();
        for (Tuple t : getMaxTupleSet()) {
            if (alias.mustAlias((MemEvent) t.getFirst(), (MemEvent) t.getSecond())) {
                minTupleSet.add(t);
            }
        }
    }
    return minTupleSet;
}

Example 35 with Tuple

use of com.dat3m.dartagnan.wmm.utils.Tuple in project Dat3M by hernanponcedeleon.

the class RelRf method encodeApprox.

@Override
protected BooleanFormula encodeApprox(SolverContext ctx) {
    FormulaManager fmgr = ctx.getFormulaManager();
    BooleanFormulaManager bmgr = fmgr.getBooleanFormulaManager();
    BooleanFormula enc = bmgr.makeTrue();
    Map<MemEvent, List<BooleanFormula>> edgeMap = new HashMap<>();
    for (Tuple tuple : maxTupleSet) {
        MemEvent w = (MemEvent) tuple.getFirst();
        MemEvent r = (MemEvent) tuple.getSecond();
        BooleanFormula edge = this.getSMTVar(tuple, ctx);
        // The boogie file might have a different type (Ints vs BVs) that the imposed by ARCH_PRECISION
        // In such cases we perform the transformation
        Formula a1 = w.getMemAddressExpr();
        Formula a2 = r.getMemAddressExpr();
        BooleanFormula sameAddress = generalEqual(a1, a2, ctx);
        Formula v1 = w.getMemValueExpr();
        Formula v2 = r.getMemValueExpr();
        BooleanFormula sameValue = generalEqual(v1, v2, ctx);
        edgeMap.computeIfAbsent(r, key -> new ArrayList<>()).add(edge);
        enc = bmgr.and(enc, bmgr.implication(edge, bmgr.and(getExecPair(w, r, ctx), sameAddress, sameValue)));
    }
    for (MemEvent r : edgeMap.keySet()) {
        enc = bmgr.and(enc, encodeEdgeSeq(r, edgeMap.get(r), ctx));
    }
    return enc;
}