Exemplo n.º 1
0
 //TODO consider creating a special StateUpdateMerge class
 /// <summary>Constructor for merging. prevKey_Regular is the key for the regular continue for the provided branchCondition</summary>
 public StateUpdate(BoolExpr branchCondition, string prevKey_Regular, string prevKey_Branch, string nextKey, Tools tools)
 {
     this._ctx = new Context(tools.Settings); // housekeeping in Dispose();
     this._branch_Condition = branchCondition.Translate(this._ctx) as BoolExpr;
     this._prevKey_Regular  = prevKey_Regular;
     this._prevKey_Branch   = prevKey_Branch;
     this._nextKey          = nextKey;
     this._tools            = tools;
     this.Empty             = false;
 }
Exemplo n.º 2
0
        public void Set(Flags flag, BoolExpr value, BoolExpr undef)
        {
            this.Empty = false;

            lock (this._ctxLock)
            {
                Context ctx = this._ctx;

                value = value?.Translate(ctx) as BoolExpr;
                undef = undef?.Translate(ctx) as BoolExpr;

                BoolExpr key = Tools.Create_Key(flag, this.NextKey, ctx);
                BoolExpr value_Constraint;
                {
                    if (value == null)
                    {
                        value_Constraint = ctx.MkEq(key, Tools.Create_Flag_Key_Fresh(flag, this._tools.Rand, ctx));
                    }
                    else if (value.IsTrue)
                    {
                        value_Constraint = key;
                    }
                    else if (value.IsFalse)
                    {
                        value_Constraint = ctx.MkNot(key);
                    }
                    else
                    {
                        value_Constraint = ctx.MkEq(key, value);
                    }
                }
                BoolExpr undef_Constraint;
                {
                    if (undef == null)
                    {
                        undef_Constraint = ctx.MkEq(key, Tools.Create_Flag_Key_Fresh(flag, this._tools.Rand, ctx));
                    }
                    else if (undef.IsTrue)
                    {
                        undef_Constraint = key;
                    }
                    else if (undef.IsFalse)
                    {
                        undef_Constraint = ctx.MkNot(key);
                    }
                    else
                    {
                        undef_Constraint = ctx.MkEq(key, undef);
                    }
                }

                this.Set_Private(flag, value_Constraint, false);
                this.Set_Private(flag, undef_Constraint, true);
            }
        }
Exemplo n.º 3
0
        //TODO consider creating a special StateUpdateMerge class

        /// <summary>Constructor for merging. prevKey_Regular is the key for the regular continue for the provided branchCondition</summary>
        public StateUpdate(BoolExpr branchCondition, string prevKey_Regular, string prevKey_Branch, string nextKey, Tools tools)
        {
            Contract.Requires(tools != null);
            Contract.Requires(branchCondition != null);

            this.ctx_ = new Context(tools.ContextSettings); // housekeeping in Dispose();
            this.branch_Condition_ = branchCondition.Translate(this.ctx_) as BoolExpr;
            this.prevKey_Regular_  = prevKey_Regular;
            this.prevKey_Branch_   = prevKey_Branch;
            this.nextKey_          = nextKey;
            this.tools_            = tools;
            this.Empty             = false;
        }
Exemplo n.º 4
0
        public void Assert(BoolExpr expr, bool undef, bool translate)
        {
            if (expr == null)
            {
                return;
            }

            if (translate)
            {
                BoolExpr t = expr.Translate(this._ctx) as BoolExpr;
                if (undef)
                {
                    this.Solver_U.Assert(t);
                }
                else
                {
                    this.Solver.Assert(t);
                }
            }
            else
            {
                if (undef)
                {
                    this.Solver_U.Assert(expr);
                }
                else
                {
                    this.Solver.Assert(expr);
                }
            }

            if (undef)
            {
                this.Solver_U_Dirty = true;
            }
            else
            {
                this.Solver_Dirty = true;
            }
        }