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/// <summary> /// Prove <tt>store(a1, i1, v1) = store(a2, i2, v2) implies (i1 = i3 or i2 = i3 or select(a1, i3) = select(a2, i3))</tt>. /// </summary> /// <remarks>This example demonstrates how to use the array theory.</remarks> public static void ArrayExample2(Context ctx) { Console.WriteLine("ArrayExample2"); Sort int_type = ctx.IntSort; Sort array_type = ctx.MkArraySort(int_type, int_type); ArrayExpr a1 = (ArrayExpr)ctx.MkConst("a1", array_type); ArrayExpr a2 = ctx.MkArrayConst("a2", int_type, int_type); Expr i1 = ctx.MkConst("i1", int_type); Expr i2 = ctx.MkConst("i2", int_type); Expr i3 = ctx.MkConst("i3", int_type); Expr v1 = ctx.MkConst("v1", int_type); Expr v2 = ctx.MkConst("v2", int_type); Expr st1 = ctx.MkStore(a1, i1, v1); Expr st2 = ctx.MkStore(a2, i2, v2); Expr sel1 = ctx.MkSelect(a1, i3); Expr sel2 = ctx.MkSelect(a2, i3); /* create antecedent */ BoolExpr antecedent = ctx.MkEq(st1, st2); /* create consequent: i1 = i3 or i2 = i3 or select(a1, i3) = select(a2, i3) */ BoolExpr consequent = ctx.MkOr(new BoolExpr[] { ctx.MkEq(i1, i3), ctx.MkEq(i2, i3), ctx.MkEq(sel1, sel2) }); /* prove store(a1, i1, v1) = store(a2, i2, v2) implies (i1 = i3 or i2 = i3 or select(a1, i3) = select(a2, i3)) */ BoolExpr thm = ctx.MkImplies(antecedent, consequent); Console.WriteLine("prove: store(a1, i1, v1) = store(a2, i2, v2) implies (i1 = i3 or i2 = i3 or select(a1, i3) = select(a2, i3))"); Console.WriteLine("{0}", (thm)); Prove(ctx, thm); }
public void Run() { Dictionary<string, string> cfg = new Dictionary<string, string>() { { "AUTO_CONFIG", "true" }, { "MODEL", "true" } }; using (Context ctx = new Context(cfg)) { Sort I = ctx.IntSort; ArrayExpr A = ctx.MkArrayConst("A", I, I); IntExpr x = ctx.MkIntConst("x"); Console.WriteLine(ctx.MkSelect(A, x)); Console.WriteLine(ctx.MkStore(A, x, ctx.MkInt(10))); Expr q = ctx.MkSelect(ctx.MkStore(A, ctx.MkInt(2), ctx.MkAdd(x, ctx.MkInt(1))), ctx.MkInt(2)); Console.WriteLine(q); Console.WriteLine(q.Simplify()); } }
public void Run() { using (Context ctx = new Context()) { ArrayExpr a = ctx.MkArrayConst("a", ctx.IntSort, ctx.IntSort); FuncDecl f = ctx.MkFuncDecl("f", ctx.IntSort, ctx.IntSort); ArrayExpr m = ctx.MkMap(f, a); Console.WriteLine(m); Console.WriteLine(m.IsArrayMap); Console.WriteLine(a.IsArrayMap); Console.WriteLine(m.IsSelect); Console.WriteLine(ctx.MkSelect(m, ctx.MkInt(0)).IsSelect); Console.WriteLine(ctx.MkStore(m, ctx.MkInt(0), ctx.MkInt(1)).IsStore); Console.WriteLine(ctx.MkStore(m, ctx.MkInt(0), ctx.MkInt(1))); Console.WriteLine(m.IsStore); Console.WriteLine(m.FuncDecl); Console.WriteLine(m.FuncDecl.Parameters[0].FuncDecl); Console.WriteLine(m.FuncDecl.Parameters[0].FuncDecl[ctx.MkInt(0)]); Console.WriteLine(ctx.MkSelect(m, ctx.MkInt(10))); } }
public void Run() { Dictionary<string, string> cfg = new Dictionary<string, string>() { { "AUTO_CONFIG", "true" }, { "MODEL", "true" } }; using (Context ctx = new Context(cfg)) { ArrayExpr A = ctx.MkArrayConst("A", ctx.IntSort, ctx.IntSort); IntExpr x = ctx.MkIntConst("x"); IntExpr y = ctx.MkIntConst("y"); Solver s = ctx.MkSolver(); s.Assert(ctx.MkEq(ctx.MkSelect(A, x), x)); s.Assert(ctx.MkEq(ctx.MkStore(A, x, y), A)); Console.WriteLine(s); Console.WriteLine(s.Check()); Console.WriteLine(s.Model); } }