private VariableState CreateNewInputVariableState(VersionedVariable variable, ISymbolicHeapContext context, bool canBeNull)
{
var newVar = context.CreateVariable(Sort.Int, variable.ToString());
var newState = VariableState.CreateInput(this.nextVariableStateId, newVar, canBeNull);
this.nextVariableStateId++;
return(newState);
}
public void AssignReference(
VersionedVariable result,
VersionedVariable value,
ISymbolicHeapContext context)
{
this.cachedState = null;
var resultState = this.GetVariableStateOrNull(result);
var valueState = this.GetVariableStateOrNull(value);
if (resultState != null && valueState != null)
{
Contract.Assert(resultState.IsInput);
context.AddAssertion(resultState.Representation == valueState.Representation);
this.MapToVariableState(result, valueState);
}
else if (resultState == null && valueState == null)
{
var newVar = context.CreateVariable(Sort.Int, value.Variable.ToString());
var newState = VariableState.CreateInput(this.nextVariableStateId, newVar, true);
this.nextVariableStateId++;
this.MapToVariableState(result, newState);
this.MapToVariableState(value, newState);
}
else if (resultState != null)
{
Contract.Assert(valueState == null);
this.MapToVariableState(value, resultState);
}
else
{
Contract.Assert(valueState != null && resultState == null);
this.MapToVariableState(result, valueState);
}
}