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adding Cube method to .NET API, removing lookahead and get-lemmas

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-10-29 08:57:24 -07:00
parent 2774d6896b
commit 92b5301b7f
13 changed files with 38 additions and 187 deletions
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47
src/api/dotnet/Solver.cs
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@ -275,31 +275,6 @@ namespace Microsoft.Z3
return lboolToStatus(r);
}
/// <summary>
/// Select a lookahead literal from the set of supplied candidates.
/// </summary>
public BoolExpr Lookahead(IEnumerable<BoolExpr> assumptions, IEnumerable<BoolExpr> candidates)
{
ASTVector cands = new ASTVector(Context);
foreach (var c in candidates) cands.Push(c);
ASTVector assums = new ASTVector(Context);
foreach (var c in assumptions) assums.Push(c);
return (BoolExpr)Expr.Create(Context, Native.Z3_solver_lookahead(Context.nCtx, NativeObject, assums.NativeObject, cands.NativeObject));
}
/// <summary>
/// Retrieve set of lemmas that have been inferred by solver.
/// </summary>
public BoolExpr[] Lemmas
{
get
{
var r = Native.Z3_solver_get_lemmas(Context.nCtx, NativeObject);
var v = new ASTVector(Context, r);
return v.ToBoolExprArray();
}
}
/// <summary>
/// The model of the last <c>Check</c>.
/// </summary>
@ -370,6 +345,28 @@ namespace Microsoft.Z3
}
}
/// <summary>
/// Return a set of cubes.
/// </summary>
public IEnumerable<BoolExpr> Cube()
{
int rounds = 0;
while (true) {
BoolExpr r = (BoolExpr)Expr.Create(Context, Native.Z3_solver_cube(Context.nCtx, NativeObject));
if (r.IsFalse) {
if (rounds == 0)
yield return r;
break;
}
if (r.IsTrue) {
yield return r;
break;
}
++rounds;
yield return r;
}
}
/// <summary>
/// Create a clone of the current solver with respect to <c>ctx</c>.
/// </summary>