public void Run()
{
Dictionary<string, string> cfg = new Dictionary<string, string>() {
{ "AUTO_CONFIG", "true" } };
using (Context ctx = new Context(cfg))
{
IntExpr[] X = new IntExpr[5];
for (uint i = 0; i < 5; i++)
X[i] = ctx.MkIntConst(string.Format("x_{0}", i));
RealExpr[] Y = new RealExpr[5];
for (uint i = 0; i < 5; i++)
Y[i] = ctx.MkRealConst(string.Format("y_{0}", i));
BoolExpr[] P = new BoolExpr[5];
for (uint i = 0; i < 5; i++)
P[i] = ctx.MkBoolConst(string.Format("p_{0}", i));
foreach (Expr x in X)
Console.WriteLine(x);
foreach (Expr x in Y)
Console.WriteLine(x);
foreach (Expr x in P)
Console.WriteLine(x);
foreach (ArithExpr y in Y)
Console.WriteLine(ctx.MkPower(y, ctx.MkReal(2)));
ArithExpr[] Yp = new ArithExpr[Y.Length];
for (uint i = 0; i < Y.Length; i++)
Yp[i] = ctx.MkPower(Y[i], ctx.MkReal(2));
Console.WriteLine(ctx.MkAdd(Yp));
}
}
/// <summary>
/// Translates an ASTVector into a RealExpr[]
/// </summary>
public RealExpr[] ToRealExprArray()
{
uint n = Size;
RealExpr[] res = new RealExpr[n];
for (uint i = 0; i < n; i++)
{
res[i] = (RealExpr)Expr.Create(this.Context, this[i].NativeObject);
}
return(res);
}
/// <summary>
/// Coerce a real to an integer.
/// </summary>
/// <remarks>
/// The semantics of this function follows the SMT-LIB standard for the function to_int.
/// The argument must be of real sort.
/// </remarks>
public IntExpr MkReal2Int(RealExpr t)
{
Contract.Requires(t != null);
Contract.Ensures(Contract.Result<IntExpr>() != null);
CheckContextMatch(t);
return new IntExpr(this, Native.Z3_mk_real2int(nCtx, t.NativeObject));
}
/// <summary>
/// Creates an expression that checks whether a real number is an integer.
/// </summary>
public BoolExpr MkIsInteger(RealExpr t)
{
Contract.Requires(t != null);
Contract.Ensures(Contract.Result<BoolExpr>() != null);
CheckContextMatch(t);
return new BoolExpr(this, Native.Z3_mk_is_int(nCtx, t.NativeObject));
}
/// <summary>
/// Conversion of a real-sorted significand and an integer-sorted exponent into a term of FloatingPoint sort.
/// </summary>
/// <remarks>
/// Produces a term that represents the conversion of sig * 2^exp into a
/// floating-point term of sort s. If necessary, the result will be rounded
/// according to rounding mode rm.
/// </remarks>
/// <param name="rm">RoundingMode term.</param>
/// <param name="exp">Exponent term of Int sort.</param>
/// <param name="sig">Significand term of Real sort.</param>
/// <param name="s">FloatingPoint sort.</param>
public BitVecExpr MkFPToFP(FPRMExpr rm, IntExpr exp, RealExpr sig, FPSort s)
{
Contract.Ensures(Contract.Result<BitVecExpr>() != null);
return new BitVecExpr(this, Native.Z3_mk_fpa_to_fp_int_real(this.nCtx, rm.NativeObject, exp.NativeObject, sig.NativeObject, s.NativeObject));
}
/// <summary>
/// Conversion of a term of real sort into a term of FloatingPoint sort.
/// </summary>
/// <remarks>
/// Produces a term that represents the conversion of term t of real sort into a
/// floating-point term of sort s. If necessary, the result will be rounded according
/// to rounding mode rm.
/// </remarks>
/// <param name="rm">RoundingMode term.</param>
/// <param name="t">term of Real sort.</param>
/// <param name="s">FloatingPoint sort.</param>
public FPExpr MkFPToFP(FPRMExpr rm, RealExpr t, FPSort s)
{
Contract.Ensures(Contract.Result<FPExpr>() != null);
return new FPExpr(this, Native.Z3_mk_fpa_to_fp_real(this.nCtx, rm.NativeObject, t.NativeObject, s.NativeObject));
}
/// <summary>
/// Translates an ASTVector into a RealExpr[]
/// </summary>
public RealExpr[] ToRealExprArray()
{
uint n = Size;
RealExpr[] res = new RealExpr[n];
for (uint i = 0; i < n; i++)
res[i] = (RealExpr)Expr.Create(this.Context, this[i].NativeObject);
return res;
}
