/// <summary>
/// Find x and y such that: x ^ y - 103 == x * y
/// </summary>
public static void BitvectorExample2()
{
print("BitvectorExample2");
using var svc = Z3Api.Create();
var bvSize = default(N32);
/* construct x ^ y - 103 == x * y */
var x = svc.BvConst("x", bvSize);
var y = svc.BvConst("y", bvSize);
var x_xor_y = svc.XOr(x, y);
var c103 = svc.BvNumeral("103", bvSize);
var lhs = svc.Sub(x_xor_y, c103);
var rhs = svc.Mul(x, y);
var ctr = svc.Eq(lhs, rhs);
print("find values of x and y, such that x ^ y - 103 == x * y");
/* find a model (i.e., values for x an y that satisfy the constraint */
Model m = Check(svc, ctr, Status.SATISFIABLE);
foreach (var e in m.Consts)
{
print($"{e.Key.Name}:{e.Key.ASTKind} = {e.Value}");
}
}
public static void BvExample1()
{
using var svc = Z3Api.Create();
var x = svc.BvVal(3);
var y = svc.BvVal(5);
var z = svc.Or(x, y);
var eval = z.Simplify();
inform($"{z.SExpr()} = {eval}:{eval.ASTKind}");
}
public static void EnumExamples()
{
using var svc = Z3Api.Create();
var choices = svc.Enum("Choices", "ChoiceA", "ChoiceB", "ChoiceC");
for (var i = 0u; i < choices.Consts.Length; i++)
{
inform($"Choice {i} = {choices.Const(i)}");
}
}