Examples with Context com.microsoft.z3.Context used on opensource projects

Example 41 with Context

use of com.microsoft.z3.Context in project webtools.servertools by eclipse.

the class Tomcat41TestConfiguration method verifyPublishedModule.

protected void verifyPublishedModule(IPath baseDir, IModule module) throws Exception {
    Tomcat41TestConfiguration config = new Tomcat41TestConfiguration(null);
    config.load(baseDir.append("conf"), null);
    ServerInstance serverInstance = config.getServerInstance();
    Context context = serverInstance.getContext(module.getName());
    String deployDir = getTomcatServer().getDeployDirectory();
    if ("webapps".equals(deployDir)) {
        assertEquals(module.getName(), context.getDocBase());
    } else {
        assertEquals(getTomcatServerBehaviour().getModuleDeployDirectory(module).toOSString(), context.getDocBase());
    }
    verifyPublishedModuleFiles(module);
}

Example 42 with Context

use of com.microsoft.z3.Context in project webtools.servertools by eclipse.

the class Tomcat50TestConfiguration method verifyPublishedModule.

protected void verifyPublishedModule(IPath baseDir, IModule module) throws Exception {
    Tomcat50TestConfiguration config = new Tomcat50TestConfiguration(null);
    config.load(baseDir.append("conf"), null);
    ServerInstance serverInstance = config.getServerInstance();
    Context context = serverInstance.getContext(module.getName());
    String deployDir = getTomcatServer().getDeployDirectory();
    if ("webapps".equals(deployDir)) {
        assertEquals(module.getName(), context.getDocBase());
    } else {
        assertEquals(getTomcatServerBehaviour().getModuleDeployDirectory(module).toOSString(), context.getDocBase());
    }
    verifyPublishedModuleFiles(module);
}

Example 43 with Context

use of com.microsoft.z3.Context in project webtools.servertools by eclipse.

the class Tomcat70TestConfiguration method verifyPublishedModule.

protected void verifyPublishedModule(IPath baseDir, IModule module) throws Exception {
    Tomcat70TestConfiguration config = new Tomcat70TestConfiguration(null);
    config.load(baseDir.append("conf"), null);
    ServerInstance serverInstance = config.getServerInstance();
    Context context = serverInstance.getContext(module.getName());
    String deployDir = getTomcatServer().getDeployDirectory();
    if ("webapps".equals(deployDir)) {
        assertEquals(module.getName(), context.getDocBase());
    } else {
        assertEquals(getTomcatServerBehaviour().getModuleDeployDirectory(module).toOSString(), context.getDocBase());
    }
    verifyPublishedModuleFiles(module);
}

Example 44 with Context

use of com.microsoft.z3.Context in project Dat3M by hernanponcedeleon.

the class ARM method Inconsistent.

public static BoolExpr Inconsistent(Program program, Context ctx) throws Z3Exception {
    Set<Event> events = program.getEvents().stream().filter(e -> e instanceof MemEvent).collect(Collectors.toSet());
    BoolExpr enc = ctx.mkAnd(satCycleDef("hb-arm", events, ctx), satCycleDef("(co+prop)", events, ctx), satCycleDef("(poloc+com)", events, ctx));
    enc = ctx.mkAnd(enc, ctx.mkOr(satCycle("hb-arm", events, ctx), ctx.mkNot(satIrref("((fre;prop);(hb-arm)*)", events, ctx)), satCycle("(co+prop)", events, ctx), satCycle("(poloc+com)", events, ctx)));
    return enc;
}

Example 45 with Context

use of com.microsoft.z3.Context in project Dat3M by hernanponcedeleon.

the class Domain method encode.

public static BoolExpr encode(Program program, Context ctx) throws Z3Exception {
    BoolExpr enc = ctx.mkTrue();
    Set<Event> mEvents = program.getEvents().stream().filter(e -> e instanceof MemEvent).collect(Collectors.toSet());
    Set<Event> barriers = program.getEvents().stream().filter(e -> e instanceof Barrier).collect(Collectors.toSet());
    Set<Event> eventsL = program.getEvents().stream().filter(e -> e instanceof MemEvent || e instanceof Local).collect(Collectors.toSet());
    for (Event e : eventsL) {
        enc = ctx.mkAnd(enc, ctx.mkNot(edge("ii", e, e, ctx)));
        enc = ctx.mkAnd(enc, ctx.mkNot(edge("ic", e, e, ctx)));
        enc = ctx.mkAnd(enc, ctx.mkNot(edge("ci", e, e, ctx)));
        enc = ctx.mkAnd(enc, ctx.mkNot(edge("cc", e, e, ctx)));
    }
    for (Event e1 : mEvents) {
        for (Event e2 : mEvents) {
            enc = ctx.mkAnd(enc, ctx.mkImplies(edge("rf", e1, e2, ctx), ctx.mkAnd(e1.executes(ctx), e2.executes(ctx))));
            enc = ctx.mkAnd(enc, ctx.mkImplies(edge("co", e1, e2, ctx), ctx.mkAnd(e1.executes(ctx), e2.executes(ctx))));
            if (!(e1 instanceof Init)) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("IM", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("IW", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("IR", e1, e2, ctx)));
            } else {
                enc = ctx.mkAnd(enc, edge("IM", e1, e2, ctx));
            }
            if (!(e2 instanceof Init)) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("MI", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("WI", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("RI", e1, e2, ctx)));
            } else {
                enc = ctx.mkAnd(enc, edge("MI", e1, e2, ctx));
            }
            if (!(e1 instanceof Load)) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("RM", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("RW", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("RR", e1, e2, ctx)));
            } else {
                enc = ctx.mkAnd(enc, edge("RM", e1, e2, ctx));
            }
            if (!(e2 instanceof Load)) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("MR", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("WR", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("RR", e1, e2, ctx)));
            } else {
                enc = ctx.mkAnd(enc, edge("MR", e1, e2, ctx));
            }
            if (!(e1 instanceof Store || e1 instanceof Init)) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("WM", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("WW", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("WR", e1, e2, ctx)));
            } else {
                enc = ctx.mkAnd(enc, edge("WM", e1, e2, ctx));
            }
            if (!(e2 instanceof Store || e2 instanceof Init)) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("MW", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("WW", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("RW", e1, e2, ctx)));
            } else {
                enc = ctx.mkAnd(enc, edge("MW", e1, e2, ctx));
            }
            if (e1 instanceof Load && e2 instanceof Load) {
                enc = ctx.mkAnd(enc, edge("RR", e1, e2, ctx));
            }
            if (e1 instanceof Load && (e2 instanceof Init || e2 instanceof Store)) {
                enc = ctx.mkAnd(enc, edge("RW", e1, e2, ctx));
            }
            if ((e1 instanceof Init || e1 instanceof Store) && (e2 instanceof Init || e2 instanceof Store)) {
                enc = ctx.mkAnd(enc, edge("WW", e1, e2, ctx));
            }
            if ((e1 instanceof Init || e1 instanceof Store) && e2 instanceof Load) {
                enc = ctx.mkAnd(enc, edge("WR", e1, e2, ctx));
            }
            if (e1 == e2) {
                enc = ctx.mkAnd(enc, edge("id", e1, e2, ctx));
            } else {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("id", e1, e2, ctx)));
            }
            if (e1.getMainThread() == e2.getMainThread()) {
                enc = ctx.mkAnd(enc, edge("int", e1, e2, ctx));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("ext", e1, e2, ctx)));
                if (e1.getEId() < e2.getEId()) {
                    enc = ctx.mkAnd(enc, edge("po", e1, e2, ctx));
                    if (e1.getCondLevel() < e2.getCondLevel() && e1 instanceof Load && e2.getCondRegs().contains(e1.getReg())) {
                        enc = ctx.mkAnd(enc, edge("ctrlDirect", e1, e2, ctx));
                    } else {
                        enc = ctx.mkAnd(enc, ctx.mkNot(edge("ctrlDirect", e1, e2, ctx)));
                    }
                } else {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("po", e1, e2, ctx)));
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("ctrl", e1, e2, ctx)));
                }
                boolean noMfence = true;
                boolean noSync = true;
                boolean noLwsync = true;
                boolean noIsync = true;
                boolean noIsh = true;
                boolean noIsb = true;
                for (Event b : barriers.stream().filter(e -> e.getMainThread() == e1.getMainThread() && e1.getEId() < e.getEId() && e.getEId() < e2.getEId()).collect(Collectors.toSet())) {
                    if (b instanceof Mfence) {
                        noMfence = false;
                    }
                    if (b instanceof Sync) {
                        noSync = false;
                    }
                    if (b instanceof Lwsync) {
                        noLwsync = false;
                    }
                    if (b instanceof Isync) {
                        noIsync = false;
                    }
                    if (b instanceof Ish) {
                        noIsh = false;
                    }
                    if (b instanceof Isb) {
                        noIsb = false;
                    }
                }
                if (noMfence) {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("mfence", e1, e2, ctx)));
                }
                if (noSync) {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("sync", e1, e2, ctx)));
                }
                if (noLwsync) {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("lwsync", e1, e2, ctx)));
                }
                if (noIsync) {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("isync", e1, e2, ctx)));
                }
                if (noIsh) {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("ish", e1, e2, ctx)));
                }
                if (noIsb) {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("isb", e1, e2, ctx)));
                }
            } else {
                enc = ctx.mkAnd(enc, edge("ext", e1, e2, ctx));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("int", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("po", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("ctrl", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("ii", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("ic", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("ci", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("cc", e1, e2, ctx)));
            }
            if (e1.getLoc() == e2.getLoc()) {
                enc = ctx.mkAnd(enc, edge("loc", e1, e2, ctx));
            } else {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("loc", e1, e2, ctx)));
            }
            if (!((e1 instanceof Store || e1 instanceof Init) && e2 instanceof Load && e1.getLoc() == e2.getLoc())) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("rf", e1, e2, ctx)));
            }
            if (!((e1 instanceof Store || e1 instanceof Init) && (e2 instanceof Store || e2 instanceof Init) && e1.getLoc() == e2.getLoc())) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("co", e1, e2, ctx)));
            }
            if (!(e1.getMainThread() == e2.getMainThread() && e1.getEId() < e2.getEId())) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("mfence", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("sync", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("lwsync", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("isync", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("ish", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("isb", e1, e2, ctx)));
            }
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("rfe", e1, e2, ctx), ctx.mkAnd(edge("rf", e1, e2, ctx), edge("ext", e1, e2, ctx))));
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("rfi", e1, e2, ctx), ctx.mkAnd(edge("rf", e1, e2, ctx), edge("int", e1, e2, ctx))));
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("coe", e1, e2, ctx), ctx.mkAnd(edge("co", e1, e2, ctx), edge("ext", e1, e2, ctx))));
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("coi", e1, e2, ctx), ctx.mkAnd(edge("co", e1, e2, ctx), edge("int", e1, e2, ctx))));
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("fre", e1, e2, ctx), ctx.mkAnd(edge("fr", e1, e2, ctx), edge("ext", e1, e2, ctx))));
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("fri", e1, e2, ctx), ctx.mkAnd(edge("fr", e1, e2, ctx), edge("int", e1, e2, ctx))));
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("poloc", e1, e2, ctx), ctx.mkAnd(edge("po", e1, e2, ctx), edge("loc", e1, e2, ctx))));
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("ctrlisync", e1, e2, ctx), ctx.mkAnd(edge("ctrl", e1, e2, ctx), edge("isync", e1, e2, ctx))));
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("ctrlisb", e1, e2, ctx), ctx.mkAnd(edge("ctrl", e1, e2, ctx), edge("isb", e1, e2, ctx))));
        }
    }
    for (Event e1 : mEvents) {
        for (Event e2 : mEvents) {
            BoolExpr mfences = ctx.mkFalse();
            BoolExpr syncs = ctx.mkFalse();
            BoolExpr lwsyncs = ctx.mkFalse();
            BoolExpr isyncs = ctx.mkFalse();
            BoolExpr ishs = ctx.mkFalse();
            BoolExpr isbs = ctx.mkFalse();
            for (Event b : barriers) {
                if (b instanceof Mfence && e1.getMainThread() == b.getMainThread() && b.getMainThread() == e2.getMainThread() && e1.getEId() < b.getEId() && b.getEId() < e2.getEId()) {
                    mfences = ctx.mkOr(mfences, b.executes(ctx));
                    enc = ctx.mkAnd(enc, ctx.mkImplies(ctx.mkAnd(e1.executes(ctx), ctx.mkAnd(b.executes(ctx), e2.executes(ctx))), edge("mfence", e1, e2, ctx)));
                }
                if (b instanceof Sync && e1.getMainThread() == b.getMainThread() && b.getMainThread() == e2.getMainThread() && e1.getEId() < b.getEId() && b.getEId() < e2.getEId()) {
                    syncs = ctx.mkOr(syncs, b.executes(ctx));
                    enc = ctx.mkAnd(enc, ctx.mkImplies(ctx.mkAnd(e1.executes(ctx), ctx.mkAnd(b.executes(ctx), e2.executes(ctx))), edge("sync", e1, e2, ctx)));
                }
                if (b instanceof Lwsync && e1.getMainThread() == b.getMainThread() && b.getMainThread() == e2.getMainThread() && e1.getEId() < b.getEId() && b.getEId() < e2.getEId()) {
                    lwsyncs = ctx.mkOr(lwsyncs, b.executes(ctx));
                    enc = ctx.mkAnd(enc, ctx.mkImplies(ctx.mkAnd(e1.executes(ctx), ctx.mkAnd(b.executes(ctx), e2.executes(ctx))), edge("lwsync", e1, e2, ctx)));
                }
                if (b instanceof Isync && e1.getMainThread() == b.getMainThread() && b.getMainThread() == e2.getMainThread() && e1.getEId() < b.getEId() && b.getEId() < e2.getEId()) {
                    isyncs = ctx.mkOr(isyncs, b.executes(ctx));
                    enc = ctx.mkAnd(enc, ctx.mkImplies(ctx.mkAnd(e1.executes(ctx), ctx.mkAnd(b.executes(ctx), e2.executes(ctx))), edge("isync", e1, e2, ctx)));
                }
                if (b instanceof Ish && e1.getMainThread() == b.getMainThread() && b.getMainThread() == e2.getMainThread() && e1.getEId() < b.getEId() && b.getEId() < e2.getEId()) {
                    ishs = ctx.mkOr(ishs, b.executes(ctx));
                    enc = ctx.mkAnd(enc, ctx.mkImplies(ctx.mkAnd(e1.executes(ctx), ctx.mkAnd(b.executes(ctx), e2.executes(ctx))), edge("ish", e1, e2, ctx)));
                }
                if (b instanceof Isb && e1.getMainThread() == b.getMainThread() && b.getMainThread() == e2.getMainThread() && e1.getEId() < b.getEId() && b.getEId() < e2.getEId()) {
                    isbs = ctx.mkOr(isbs, b.executes(ctx));
                    enc = ctx.mkAnd(enc, ctx.mkImplies(ctx.mkAnd(e1.executes(ctx), ctx.mkAnd(b.executes(ctx), e2.executes(ctx))), edge("isb", e1, e2, ctx)));
                }
            }
            enc = ctx.mkAnd(enc, ctx.mkImplies(edge("mfence", e1, e2, ctx), mfences));
            enc = ctx.mkAnd(enc, ctx.mkImplies(edge("sync", e1, e2, ctx), syncs));
            enc = ctx.mkAnd(enc, ctx.mkImplies(edge("lwsync", e1, e2, ctx), lwsyncs));
            enc = ctx.mkAnd(enc, ctx.mkImplies(edge("isync", e1, e2, ctx), isyncs));
            enc = ctx.mkAnd(enc, ctx.mkImplies(edge("ish", e1, e2, ctx), ishs));
            enc = ctx.mkAnd(enc, ctx.mkImplies(edge("isb", e1, e2, ctx), isbs));
        }
    }
    for (Event e1 : eventsL) {
        for (Event e2 : eventsL) {
            if (e1.getMainThread() != e2.getMainThread() || e2.getEId() < e1.getEId() || e1 == e2) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("idd", e1, e2, ctx)));
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("data", e1, e2, ctx)));
            }
            if (e2 instanceof Store) {
                if (!e2.getLastModMap().get(e2.getReg()).contains(e1)) {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("idd", e1, e2, ctx)));
                }
            }
            if (e2 instanceof Load) {
                if (!e2.getLastModMap().keySet().contains(e2.getLoc())) {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("idd", e1, e2, ctx)));
                }
            }
            if (e2 instanceof Local && e2.getExpr() instanceof AConst) {
                enc = ctx.mkAnd(enc, ctx.mkNot(edge("idd", e1, e2, ctx)));
            }
        }
    }
    for (Event e : eventsL) {
        if (e instanceof Store) {
            BoolExpr orClause = ctx.mkFalse();
            for (Event x : eventsL) {
                if (e.getLastModMap().get(e.getReg()).contains(x)) {
                    orClause = ctx.mkOr(orClause, edge("idd", x, e, ctx));
                } else {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("idd", x, e, ctx)));
                }
            }
            enc = ctx.mkAnd(enc, orClause);
        }
        if (e instanceof Load) {
            if (!e.getLastModMap().keySet().contains(e.getLoc())) {
                continue;
            }
            BoolExpr orClause = ctx.mkFalse();
            for (Event x : eventsL) {
                if (e.getLastModMap().get(e.getLoc()).contains(x)) {
                    orClause = ctx.mkOr(orClause, edge("idd", x, e, ctx));
                } else {
                    enc = ctx.mkAnd(enc, ctx.mkNot(edge("idd", x, e, ctx)));
                }
            }
            enc = ctx.mkAnd(enc, orClause);
        }
        if (e instanceof Local) {
            for (Register reg : e.getExpr().getRegs()) {
                BoolExpr orClause = ctx.mkFalse();
                for (Event x : eventsL) {
                    if (e.getLastModMap().get(reg).contains(x)) {
                        orClause = ctx.mkOr(orClause, edge("idd", x, e, ctx));
                    } else {
                        enc = ctx.mkAnd(enc, ctx.mkNot(edge("idd", x, e, ctx)));
                    }
                }
                enc = ctx.mkAnd(enc, orClause);
            }
        }
    }
    for (Event e1 : mEvents) {
        for (Event e2 : mEvents) {
            BoolExpr ctrlClause = edge("ctrlDirect", e1, e2, ctx);
            BoolExpr orClause = ctx.mkFalse();
            for (Event e3 : mEvents) {
                ctrlClause = ctx.mkOr(ctrlClause, ctx.mkAnd(edge("ctrl", e1, e3, ctx), edge("po", e3, e2, ctx)));
                orClause = ctx.mkOr(orClause, ctx.mkAnd(edge("rf", e3, e1, ctx), edge("co", e3, e2, ctx)));
            }
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("fr", e1, e2, ctx), orClause));
            enc = ctx.mkAnd(enc, ctx.mkEq(edge("ctrl", e1, e2, ctx), ctrlClause));
        }
    }
    Set<Location> locs = mEvents.stream().filter(e -> e instanceof MemEvent).map(e -> e.getLoc()).collect(Collectors.toSet());
    for (Location loc : locs) {
        Set<Event> writesEventsLoc = mEvents.stream().filter(e -> (e instanceof Store || e instanceof Init) && e.getLoc() == loc).collect(Collectors.toSet());
        enc = ctx.mkAnd(enc, satTO("co", writesEventsLoc, ctx));
    }
    for (Event e : mEvents.stream().filter(e -> e instanceof Init).collect(Collectors.toSet())) {
        enc = ctx.mkAnd(enc, ctx.mkEq(intVar("co", e, ctx), ctx.mkInt(1)));
    }
    for (Event w1 : mEvents.stream().filter(e -> e instanceof Init || e instanceof Store).collect(Collectors.toSet())) {
        Set<Event> writeSameLoc = mEvents.stream().filter(e -> (e instanceof Init || e instanceof Store) && w1.getLoc() == e.getLoc()).collect(Collectors.toSet());
        BoolExpr lastCoOrder = w1.executes(ctx);
        for (Event w2 : writeSameLoc) {
            lastCoOrder = ctx.mkAnd(lastCoOrder, ctx.mkNot(edge("co", w1, w2, ctx)));
        }
        enc = ctx.mkAnd(enc, ctx.mkImplies(lastCoOrder, ctx.mkEq(lastValueLoc(w1.getLoc(), ctx), ((MemEvent) w1).ssaLoc)));
    }
    for (Event r1 : eventsL.stream().filter(e -> e instanceof Load || e instanceof Local).collect(Collectors.toSet())) {
        Set<Event> modRegLater = eventsL.stream().filter(e -> (e instanceof Load || e instanceof Local) && r1.getReg() == e.getReg() && r1.getEId() < e.getEId()).collect(Collectors.toSet());
        BoolExpr lastModReg = r1.executes(ctx);
        for (Event r2 : modRegLater) {
            lastModReg = ctx.mkAnd(lastModReg, ctx.mkNot(r2.executes(ctx)));
        }
        enc = ctx.mkAnd(enc, ctx.mkImplies(lastModReg, ctx.mkEq(lastValueReg(r1.getReg(), ctx), ssaReg(r1.getReg(), r1.getSsaRegIndex(), ctx))));
    }
    for (Event e : mEvents.stream().filter(e -> e instanceof Load).collect(Collectors.toSet())) {
        Set<Event> storeEventsLoc = mEvents.stream().filter(x -> (x instanceof Store || x instanceof Init) && e.getLoc() == x.getLoc()).collect(Collectors.toSet());
        Set<BoolExpr> rfPairs = new HashSet<BoolExpr>();
        for (Event w : storeEventsLoc) {
            rfPairs.add(edge("rf", w, e, ctx));
        }
        enc = ctx.mkAnd(enc, ctx.mkImplies(e.executes(ctx), encodeEO(rfPairs, ctx)));
    }
    return enc;
}