Microsoft.Z3.Context.MkFixedpoint C# (CSharp) Méthode

        public Fixedpoint MkFixedpoint()
        {
            Contract.Ensures(Contract.Result<Fixedpoint>() != null);

            return new Fixedpoint(this);
        }

 public void Run()
 {
     using (Context ctx = new Context()) {
         var s = ctx.MkFixedpoint();
         BoolSort B = ctx.BoolSort;
         Sort BV8   = ctx.MkBitVecSort(8);
         FuncDecl edge = ctx.MkFuncDecl("edge", new Sort[]{BV8, BV8}, B);
         FuncDecl path = ctx.MkFuncDecl("path", new Sort[]{BV8, BV8}, B);
         BitVecExpr x = (BitVecExpr)ctx.MkBound(0,BV8);
         BitVecExpr y = (BitVecExpr)ctx.MkBound(1,BV8);
         BitVecExpr z = (BitVecExpr)ctx.MkBound(2,BV8);
         s.RegisterRelation(edge);
         s.RegisterRelation(path);
         s.AddRule(ctx.MkImplies((BoolExpr)edge[x,y],(BoolExpr)path[x,y]));
         s.AddRule(ctx.MkImplies(ctx.MkAnd((BoolExpr)path[x,y],(BoolExpr)path[y,z]),
                                 (BoolExpr)path[x,z]));
         for (uint i = 0; i < 128; ++i) {
            s.AddFact(edge, i, i+1);
         }
         Console.WriteLine(s.Query((BoolExpr)path[ctx.MkBV(0,8),ctx.MkBV(129,8)]));
         Console.WriteLine(s.GetAnswer());
         Console.WriteLine(s.Query((BoolExpr)path[ctx.MkBV(0,8),ctx.MkBV(128,8)]));
         Console.WriteLine(s.GetAnswer());
         Console.WriteLine(s.Query((BoolExpr)path[x,ctx.MkBV(20,8)]));
         Console.WriteLine(s.GetAnswer());
         Console.WriteLine(s.Query(ctx.MkAnd((BoolExpr)path[x,y],
                                             (BoolExpr)path[y,ctx.MkBV(20,8)])));
         Console.WriteLine(s.GetAnswer());
     }
 }