C# Context.MkInt方法代码示例

    public void Run()
    {
        Dictionary<string, string> settings = new Dictionary<string, string>() { { "AUTO_CONFIG", "true" }, { "MODEL", "true" } };

        using (Context ctx = new Context(settings))
        {
            IntExpr a = ctx.MkIntConst("a");
            IntExpr b = ctx.MkIntConst("b");
            IntExpr c = ctx.MkIntConst("c");
            RealExpr d = ctx.MkRealConst("d");
            RealExpr e = ctx.MkRealConst("e");

            BoolExpr q = ctx.MkAnd(
                ctx.MkGt(a, ctx.MkAdd(b, ctx.MkInt(2))),
                ctx.MkEq(a, ctx.MkAdd(ctx.MkMul(ctx.MkInt(2), c), ctx.MkInt(10))),
                ctx.MkLe(ctx.MkAdd(c, b), ctx.MkInt(1000)),
                ctx.MkGe(d, e));

            Solver s = ctx.MkSolver();
            s.Assert(q);

            Console.WriteLine(s.Check());

            Console.WriteLine(s.Model);
        }
    }

    public void Run()
    {
        Dictionary<string, string> cfg = new Dictionary<string, string>() {
            { "AUTO_CONFIG", "true" } };

        using (Context ctx = new Context(cfg))
        {
            BoolExpr p1 = ctx.MkBoolConst("p1");
            BoolExpr p2 = ctx.MkBoolConst("p2");
            BoolExpr p3 = ctx.MkBoolConst("p3");

            IntExpr x = ctx.MkIntConst("x");
            IntExpr y = ctx.MkIntConst("y");

            Solver s = ctx.MkSolver();

            s.Assert(ctx.MkImplies(p1, ctx.MkGt(x, ctx.MkInt(10))),
                     ctx.MkImplies(p1, ctx.MkGt(y, x)),
                     ctx.MkImplies(p2, ctx.MkLt(y, ctx.MkInt(5))),
                     ctx.MkImplies(p3, ctx.MkGt(y, ctx.MkInt(0))));

            Console.WriteLine(s);
            Console.WriteLine(s.Check(p1, p2, p3));
            Console.WriteLine("Core: ");
            foreach (Expr e in s.UnsatCore)
                Console.WriteLine(e);

            Console.WriteLine(s.Check(p1, p3));
            Console.WriteLine(s.Model);
        }
    }

    public void Run()
    {
        Dictionary<string, string> cfg = new Dictionary<string, string>() {
            { "AUTO_CONFIG", "true" } };

        using (Context ctx = new Context(cfg))
        {
            IntExpr x = ctx.MkIntConst("x");
            IntExpr y = ctx.MkIntConst("y");

            Solver s = ctx.MkSolver();
            Console.WriteLine(s);

            s.Assert(ctx.MkGt(x, ctx.MkInt(10)), ctx.MkEq(y, ctx.MkAdd(x, ctx.MkInt(2))));
            Console.WriteLine(s);
            Console.WriteLine("solving s");
            Console.WriteLine(s.Check());

            Console.WriteLine("creating new scope");
            s.Push();
            s.Assert(ctx.MkLt(y, ctx.MkInt(11)));
            Console.WriteLine(s);
            Console.WriteLine("solving updated constraints");
            Console.WriteLine(s.Check());

            Console.WriteLine("restoring");
            s.Pop();
            Console.WriteLine(s);
            Console.WriteLine("solving restored constraints");
            Console.WriteLine(s.Check());
        }
    }

 /// <summary>
 /// Generates a slightly randomized expression.
 /// </summary>
 static BoolExpr MkRandomExpr(Context ctx, System.Random rng)
 {
     int limit = 1073741823;
         Sort i = ctx.IntSort;
         Sort b = ctx.BoolSort;
         Symbol sr1 = ctx.MkSymbol(rng.Next(0, limit));
         Symbol sr2 = ctx.MkSymbol(rng.Next(0, limit));
         Symbol sr3 = ctx.MkSymbol(rng.Next(0, limit));
         FuncDecl r1 = ctx.MkFuncDecl(sr1, i, b);
         FuncDecl r2 = ctx.MkFuncDecl(sr2, i, b);
         FuncDecl r3 = ctx.MkFuncDecl(sr3, i, b);
         Symbol s = ctx.MkSymbol(rng.Next(0, limit));
         Expr x = ctx.MkConst(s, i);
         BoolExpr r1x = (BoolExpr)ctx.MkApp(r1, x);
         BoolExpr r2x = (BoolExpr)ctx.MkApp(r2, x);
         BoolExpr r3x = (BoolExpr)ctx.MkApp(r3, x);
         Expr[] vars = { x };
         BoolExpr rl1 = ctx.MkForall(vars, ctx.MkImplies(r1x, r2x));
         BoolExpr rl2 = ctx.MkForall(vars, ctx.MkImplies(r2x, r1x));
         BoolExpr rl3 = (BoolExpr)ctx.MkApp(r1, ctx.MkInt(3));
         BoolExpr q = (BoolExpr)ctx.MkApp(r3, ctx.MkInt(2));
         BoolExpr a1 = ctx.MkNot(q);
         BoolExpr q1 = ctx.MkExists(vars, ctx.MkAnd(r3x, r2x));
         BoolExpr q2 = ctx.MkExists(vars, ctx.MkAnd(r3x, r1x));
         BoolExpr[] all = { a1, q1, q2 };
         return ctx.MkAnd(all);
 }

    public void Run()
    {
        Dictionary<string, string> cfg = new Dictionary<string, string>() {
            { "AUTO_CONFIG", "true" } };

        using (Context ctx = new Context(cfg))
        {
            IntExpr[] x = new IntExpr[20];
            IntExpr[] y = new IntExpr[20];

            for (uint i = 0; i < 20; i++)
            {
                x[i] = ctx.MkIntConst(string.Format("x_{0}", i));
                y[i] = ctx.MkIntConst(string.Format("y_{0}", i));
            }

            BoolExpr f = ctx.MkAnd(ctx.MkGe(ctx.MkAdd(x), ctx.MkInt(0)),
                                   ctx.MkGe(ctx.MkAdd(y), ctx.MkInt(0)));

            Console.WriteLine("now: " + ctx.GetParamValue("PP_MAX_DEPTH"));

            ctx.UpdateParamValue("PP_MAX_DEPTH", "1");
            Console.WriteLine(f);

            ctx.UpdateParamValue("PP_MAX_DEPTH", "100");
            ctx.UpdateParamValue("PP_MAX_NUM_LINES", "10");
            Console.WriteLine(f);

            ctx.UpdateParamValue("PP_MAX_NUM_LINES", "20");
            ctx.UpdateParamValue("PP_MAX_WIDTH", "300");
            Console.WriteLine(f);

            Console.WriteLine("now: " + ctx.GetParamValue("PP_MAX_WIDTH"));
        }
    }

    public void Run()
    {
        using (Context ctx = new Context())
        {
            BoolExpr p = ctx.MkBoolConst("p");
            BoolExpr q = ctx.MkBoolConst("q");
            Console.WriteLine(ctx.MkAnd(p, q));
            Console.WriteLine(ctx.MkOr(p, q));
            Console.WriteLine(ctx.MkAnd(p, ctx.MkTrue()));
            Console.WriteLine(ctx.MkOr(p, ctx.MkFalse()));
            Console.WriteLine(ctx.MkNot(p));
            Console.WriteLine(ctx.MkImplies(p, q));
            Console.WriteLine(ctx.MkEq(p, q).Simplify());
            Console.WriteLine(ctx.MkEq(p, q));

            BoolExpr r = ctx.MkBoolConst("r");

            Console.WriteLine(ctx.MkNot(ctx.MkEq(p, ctx.MkNot(ctx.MkEq(q, r)))));
            Console.WriteLine(ctx.MkNot(ctx.MkEq(ctx.MkNot(ctx.MkEq(p, q)), r)));
            Console.WriteLine(ctx.MkEq(p, ctx.MkTrue()));
            Console.WriteLine(ctx.MkEq(p, ctx.MkFalse()));
            Console.WriteLine(ctx.MkEq(p, ctx.MkTrue()).Simplify());
            Console.WriteLine(ctx.MkEq(p, ctx.MkFalse()).Simplify());
            Console.WriteLine(ctx.MkEq(p, p).Simplify());
            Console.WriteLine(ctx.MkEq(p, q).Simplify());
            Console.WriteLine(ctx.MkAnd(p, q, r));
            Console.WriteLine(ctx.MkOr(p, q, r));

            IntExpr x = ctx.MkIntConst("x");

            Console.WriteLine(x is BoolExpr);
            Console.WriteLine(p is BoolExpr);
            Console.WriteLine(ctx.MkAnd(p, q) is BoolExpr);
            Console.WriteLine(p is BoolExpr);
            Console.WriteLine(ctx.MkAdd(x, ctx.MkInt(1)) is BoolExpr);
            Console.WriteLine(p.IsAnd);
            Console.WriteLine(ctx.MkOr(p, q).IsOr);
            Console.WriteLine(ctx.MkAnd(p, q).IsAnd);
            Console.WriteLine(x.IsNot);
            Console.WriteLine(p.IsNot);
            Console.WriteLine(ctx.MkNot(p));
            Console.WriteLine(ctx.MkNot(p).IsDistinct);
            Console.WriteLine(ctx.MkEq(p, q).IsDistinct);
            Console.WriteLine(ctx.MkDistinct(p, q).IsDistinct);
            Console.WriteLine(ctx.MkDistinct(x, ctx.MkAdd(x, ctx.MkInt(1)), ctx.MkAdd(x, ctx.MkInt(2))).IsDistinct);

            Console.WriteLine();

            Console.WriteLine(ctx.MkBool(true));
            Console.WriteLine(ctx.MkBool(false));
            Console.WriteLine(ctx.BoolSort);

            Context ctx1 = new Context();
            Console.WriteLine(ctx1.MkBool(true));
            Console.WriteLine(ctx1.BoolSort);
            Console.WriteLine(ctx1.MkBool(true).Sort == ctx1.BoolSort);
            Console.WriteLine(ctx1.MkBool(true).Sort == ctx.BoolSort);
            Console.WriteLine(ctx1.MkBool(true).Sort != ctx.BoolSort);
        }
    }

    public void Run()
    {
        using (Context ctx = new Context()) {
            ctx.UpdateParamValue("DL_ENGINE","1");
            ctx.UpdateParamValue("DL_PDR_USE_FARKAS","true");
        //          ctx.UpdateParamValue("VERBOSE","2");
            var s = ctx.MkFixedpoint();
            BoolSort B = ctx.BoolSort;
            IntSort I = ctx.IntSort;
            FuncDecl mc = ctx.MkFuncDecl("mc", new Sort[]{I, I}, B);
            ArithExpr x = (ArithExpr)ctx.MkBound(0,I);
            ArithExpr y = (ArithExpr)ctx.MkBound(1,I);
            ArithExpr z = (ArithExpr)ctx.MkBound(2,I);
            s.RegisterRelation(mc);
            BoolExpr gt = ctx.MkGt(x, ctx.MkInt(100));
            s.AddRule(ctx.MkImplies(gt,(BoolExpr)mc[x,ctx.MkSub(x,ctx.MkInt(10))]));
            s.AddRule(ctx.MkImplies(ctx.MkAnd(ctx.MkNot(gt),
                                      (BoolExpr) mc[ctx.MkAdd(x,ctx.MkInt(11)),y],
                                      (BoolExpr) mc[y,z]),
                                      (BoolExpr) mc[x,z]));
            Console.WriteLine(s.Query(ctx.MkAnd((BoolExpr)mc[x,y], ctx.MkGt(y,ctx.MkInt(100)))));
            Console.WriteLine(s.GetAnswer());

            Console.WriteLine(s.Query(ctx.MkAnd((BoolExpr)mc[x,y], ctx.MkLt(y,ctx.MkInt(91)))));
            Console.WriteLine(s.GetAnswer());
        }
    }

    public void Run()
    {
        using (Context ctx = new Context())
        {
            FuncDecl f = ctx.MkFuncDecl("f", new Sort[] { ctx.IntSort, ctx.RealSort }, ctx.IntSort);

            try
            {
                Console.WriteLine(f.Domain[3]);
            }
            catch (IndexOutOfRangeException ex)
            {
                Console.WriteLine("failed: " + ex.Message);
            }

            IntExpr x = ctx.MkIntConst("x");

            Console.WriteLine(f[ctx.MkInt(1), ctx.MkReal(1)]);
            Console.WriteLine(f[ctx.MkInt(1), ctx.MkReal(1)].Sort);
            Console.WriteLine(f[ctx.MkInt(1), ctx.MkReal(1)].NumArgs);
            foreach (Expr e in f[ctx.MkAdd(x, ctx.MkInt(1)), ctx.MkReal(1)].Args)
            Console.WriteLine(e);
            Console.WriteLine(f[ctx.MkAdd(x, ctx.MkInt(1)), ctx.MkReal(1)].Args[0]);
            Console.WriteLine(f[ctx.MkAdd(x, ctx.MkInt(1)), ctx.MkReal(1)].Args[0].Equals(ctx.MkAdd(x, ctx.MkInt(1))));
            Console.WriteLine(f[ctx.MkAdd(x, ctx.MkInt(1)), ctx.MkReal(1)].FuncDecl[ctx.MkInt(2), ctx.MkInt2Real((IntExpr)ctx.MkAdd(x, ctx.MkInt(1)))]);

            Console.WriteLine(ctx.MkInt(1).IsExpr);
            Console.WriteLine(ctx.MkAdd(x, ctx.MkInt(1)).IsExpr);
            Console.WriteLine(ctx.MkForall(new Expr[] { x }, ctx.MkGt(x, ctx.MkInt(0))).IsExpr);
            Console.WriteLine(ctx.MkInt(1).IsConst);
            Console.WriteLine(x.IsConst);
            Console.WriteLine(ctx.MkAdd(x, ctx.MkInt(1)).IsConst);
            Console.WriteLine(ctx.MkForall(new Expr[] { x }, ctx.MkGt(x, ctx.MkInt(0))).IsConst);

            Console.WriteLine(ctx.MkForall(new Expr[] { x }, ctx.MkGt(x, ctx.MkInt(0))).Body.Args[0]);
            Console.WriteLine(ctx.MkForall(new Expr[] { x }, ctx.MkGt(x, ctx.MkInt(0))).Body.Args[0].IsExpr);
            Console.WriteLine(ctx.MkForall(new Expr[] { x }, ctx.MkGt(x, ctx.MkInt(0))).Body.Args[0].IsConst);
            Console.WriteLine(ctx.MkForall(new Expr[] { x }, ctx.MkGt(x, ctx.MkInt(0))).Body.Args[0].IsVar);
            Console.WriteLine(x.IsVar);
            Console.WriteLine(ctx.MkITE(ctx.MkTrue(), x, ctx.MkAdd(x, ctx.MkInt(1))));

            Context ctx1 = new Context();
            Console.WriteLine(ctx1.MkITE(ctx1.MkTrue(), x.Translate(ctx1), ctx.MkAdd(x, ctx.MkInt(1)).Translate(ctx1)));
            Console.WriteLine(ctx.MkITE(ctx.MkTrue(), ctx.MkInt(1), ctx.MkInt(1)));

            Console.WriteLine(ctx.MkDistinct(x, ctx.MkAdd(x, ctx.MkInt(1)), ctx.MkAdd(x, ctx.MkInt(2))));

            Console.WriteLine(ctx1.MkAnd(ctx1.MkDistinct(x.Translate(ctx1), ctx1.MkInt(1)),
                                         ctx1.MkGt((IntExpr)x.Translate(ctx1), ctx1.MkInt(0))));

        }
    }

    public void Run()
    {
        Dictionary<string, string> cfg = new Dictionary<string, string>() {
            { "AUTO_CONFIG", "true" } };

        using (Context ctx = new Context(cfg))
        {
            IntExpr x = ctx.MkIntConst("x");

            Console.WriteLine(ctx.MkAdd(x, ctx.MkInt(1)).GetHashCode() == ctx.MkAdd(ctx.MkInt(1), x).GetHashCode());
            Console.WriteLine(x.Sort.GetHashCode() == ctx.IntSort.GetHashCode());
        }
    }

    public void Run()
    {
        Dictionary<string, string> cfg = new Dictionary<string, string>() {
            { "AUTO_CONFIG", "true" } };

        using (Context ctx = new Context(cfg))
        {
            IntExpr dog = ctx.MkIntConst("dog");
            IntExpr cat = ctx.MkIntConst("cat");
            IntExpr mouse = ctx.MkIntConst("mouse");

            Solver s = ctx.MkSolver();

            s.Assert(ctx.MkGe(dog, ctx.MkInt(1)));
            s.Assert(ctx.MkGe(cat, ctx.MkInt(1)));
            s.Assert(ctx.MkGe(mouse, ctx.MkInt(1)));
            s.Assert(ctx.MkEq(ctx.MkAdd(dog, cat, mouse), ctx.MkInt(100)));
            s.Assert(ctx.MkEq(ctx.MkAdd(ctx.MkMul(ctx.MkInt(1500), dog),
                                        ctx.MkMul(ctx.MkInt(100), cat),
                                        ctx.MkMul(ctx.MkInt(25), mouse)),
                              ctx.MkInt(10000)));

            Console.WriteLine(s.Check());
            Console.WriteLine(s.Model);
        }
    }

    public void Run()
    {
        Dictionary<string, string> cfg = new Dictionary<string, string>() {
            { "AUTO_CONFIG", "true" } };

        using (Context ctx = new Context(cfg))
        {
            IntExpr x = ctx.MkIntConst("x");
            RealExpr y = ctx.MkRealConst("y");
            Console.WriteLine((ctx.MkAdd(x, ctx.MkInt(1))).Sort);
            Console.WriteLine((ctx.MkAdd(y, ctx.MkReal(1))).Sort);
            Console.WriteLine((ctx.MkGe(x, ctx.MkInt(2))).Sort);
        }
    }

 public void Run()
 {
     using (Context ctx = new Context())
     {
         IntExpr x = ctx.MkIntConst("x");
         Console.WriteLine(ctx.MkAdd(x, ctx.MkInt(1)));
     }
 }

    public void Run()
    {
        Dictionary<string, string> cfg = new Dictionary<string, string>() {
            { "AUTO_CONFIG", "true" } };

        using (Context ctx = new Context(cfg))
        {
            ArithExpr[] a = new ArithExpr[5];
            for (uint x = 0; x < 5; x++)
                a[x] = ctx.MkInt(x+1);

            foreach (Expr e in a)
                Console.WriteLine(e);

            ArithExpr[] X = new ArithExpr[5];
            for (uint i = 0; i < 5; i++)
                X[i] = ctx.MkIntConst(string.Format("x{0}", i));

            ArithExpr[] Y = new ArithExpr[5];
            for (uint i = 0; i < 5; i++)
                Y[i] = ctx.MkIntConst(string.Format("y{0}", i));

            foreach (Expr e in X)
                Console.WriteLine(e);

            ArithExpr[] X_plus_Y = new ArithExpr[5];
            for (uint i = 0; i < 5; i++)
                X_plus_Y[i] = ctx.MkAdd(X[i], Y[i]);

            foreach (Expr e in X_plus_Y)
                Console.WriteLine(e);

            BoolExpr[] X_gt_Y = new BoolExpr[5];
            for (uint i = 0; i < 5; i++)
                X_gt_Y[i] = ctx.MkGt(X[i], Y[i]);

            foreach (Expr e in X_gt_Y)
                Console.WriteLine(e);

            Console.WriteLine(ctx.MkAnd(X_gt_Y));

            Expr[][] matrix = new Expr[3][];
            for (uint i = 0; i < 3; i++) {
                matrix[i] = new Expr[3];
                for (uint j = 0; j < 3; j++)
                    matrix[i][j] = ctx.MkIntConst(string.Format("x_{0}_{1}", i + 1, j + 1));
            }

            foreach(Expr[] row in matrix) {
                foreach(Expr e in row)
                    Console.Write(" " + e);
                Console.WriteLine();
            }
        }
    }

    public void Run()
    {
        Dictionary<string, string> cfg = new Dictionary<string, string>() {
            { "AUTO_CONFIG", "true" } };

        using (Context ctx = new Context(cfg))
        {
            Params p = ctx.MkParams();
            p.Add(":arith-lhs", true);
            p.Add(":som", true);

            Solver s = ctx.Then(ctx.With(ctx.MkTactic("simplify"), p),
                                ctx.MkTactic("normalize-bounds"),
                                ctx.MkTactic("lia2pb"),
                                ctx.MkTactic("pb2bv"),
                                ctx.MkTactic("bit-blast"),
                                ctx.MkTactic("sat")).Solver;

            IntExpr x = ctx.MkIntConst("x");
            IntExpr y = ctx.MkIntConst("y");
            IntExpr z = ctx.MkIntConst("z");

            s.Assert(new BoolExpr[] { ctx.MkGt(x, ctx.MkInt(0)),
                                      ctx.MkLt(x, ctx.MkInt(10)),
                                      ctx.MkGt(y, ctx.MkInt(0)),
                                      ctx.MkLt(y, ctx.MkInt(10)),
                                      ctx.MkGt(z, ctx.MkInt(0)),
                                      ctx.MkLt(z, ctx.MkInt(10)),
                                      ctx.MkEq(ctx.MkAdd(ctx.MkMul(ctx.MkInt(3), y),
                                                         ctx.MkMul(ctx.MkInt(2), x)), z) });

            Console.WriteLine(s.Check());
            Console.WriteLine(s.Model);

            s.Reset();

            s.Assert(ctx.MkEq(ctx.MkAdd(ctx.MkMul(ctx.MkInt(3), y),
                                        ctx.MkMul(ctx.MkInt(2), x)), z));

            Console.WriteLine(s.Check());
        }
    }

    public void Run()
    {
        Dictionary<string, string> cfg = new Dictionary<string, string>() {
            { "AUTO_CONFIG", "true" },
            { "MODEL", "true" } };

        using (Context ctx = new Context(cfg))
        {
            ArrayExpr X = ctx.MkArrayConst("A", ctx.IntSort, ctx.IntSort);

            Expr q = ctx.MkGe(
                        ctx.MkAdd((IntExpr)ctx.MkSelect(X, ctx.MkInt(0)),
                                  (IntExpr)ctx.MkSelect(X, ctx.MkInt(1)),
                                  (IntExpr)ctx.MkSelect(X, ctx.MkInt(2))),
                        ctx.MkInt(0));

            Console.WriteLine(q);
            Console.WriteLine(q.Simplify());
        }
    }