public void checkEqualityConstraint(object executor, Executor.BreakPointEventArgs data, Predicate <LiteralExpr> condition)
{
// Check that the equality constraint has been stored
bool found = false;
// Find the symbolic associated with variable "a".
var theLocal = e.CurrentState.GetInScopeVariableAndExprByName("a");
//var symbolic = e.CurrentState.Symbolics.Where( s => s.Origin.AsVariable == theLocal.Key).First();
foreach (Expr constraint in e.CurrentState.Constraints.ConstraintExprs)
{
LiteralExpr literal = null;
Variable symbolic = null;
found = FindLiteralAssignment.findAnyVariable(constraint, out symbolic, out literal);
if (found)
{
Assert.IsInstanceOf <SymbolicVariable>(symbolic);
var asSym = symbolic as SymbolicVariable;
if (asSym.Origin.IsVariable && asSym.Origin.AsVariable == theLocal.Key)
{
Assert.IsTrue(condition(literal));
found = true;
break;
}
}
}
Assert.IsTrue(found, "Equality constraint not found");
}
public void GlobalConstantWithAxiom()
{
p = LoadProgramFrom("programs/GlobalConstantWithAxiom.bpl");
e = GetExecutor(p);
e.BreakPointReached += delegate(object executor, Executor.BreakPointEventArgs data)
{
Assert.IsTrue(data.Name == "entry");
var constant = p.TopLevelDeclarations.OfType <Constant>().Where(c => c.Name == "a").First();
Assert.IsTrue(constant is Constant);
Assert.IsTrue(e.CurrentState.IsInScopeVariable(constant));
Assert.IsFalse(e.IsSymbolic(constant)); // There is an equality constraint that forces this to be concrete
// Find the symbolic associated with Constant
//var relevantSymbolic = e.CurrentState.Symbolics.Where( s => s.Origin.IsVariable && s.Origin.AsVariable == constant).First();
// Check for the expect equality constraint.
bool found = false;
foreach (Expr constraint in e.CurrentState.Constraints.ConstraintExprs)
{
LiteralExpr literal = null;
Variable symbolic = null;
if (FindLiteralAssignment.findAnyVariable(constraint, out symbolic, out literal))
{
Assert.IsInstanceOf <SymbolicVariable>(symbolic);
var asSym = symbolic as SymbolicVariable;
if (asSym.Origin.IsVariable && asSym.Origin.AsVariable == constant)
{
found = true;
Assert.IsTrue(literal.isBvConst);
Assert.AreEqual(literal.asBvConst.Value.ToInt, 7);
}
}
}
Assert.IsTrue(found, "Did not find expected equality constraint");
};
e.Run(GetMain(p));
}
