public bool BindLambdaFunction(Function lambdaFunction)
{
if (lambdaDefinition.ContainsKey(lambdaFunction))
{
return(true);
}
var lambdaDefinitionExpr = lambdaFunction.DefinitionAxiom.Expr as QuantifierExpr;
if (lambdaDefinitionExpr.TypeParameters.Count > 0)
{
return(false);
}
var translatedExpr = exprTranslator.Translate(lambdaDefinitionExpr) as VCExprQuantifier;
var boundVariableToLabels = translatedExpr.Info.instantiationLabels;
var numParametersInLambdaDefinition = lambdaDefinitionExpr.Dummies.Count - lambdaFunction.InParams.Count;
if (boundVariableToLabels.Count < numParametersInLambdaDefinition ||
Enumerable.Range(lambdaFunction.InParams.Count, numParametersInLambdaDefinition)
.Any(i => boundVariableToLabels[translatedExpr.BoundVars[i]].Count == 0))
{
return(false);
}
lambdaDefinition[lambdaFunction] = translatedExpr;
quantifierInstantiationInfo[translatedExpr] = new QuantifierInstantiationInfo(boundVariableToLabels);
return(true);
}
public VCExpr BindQuantifier(VCExprQuantifier node)
{
if (node.TypeParameters.Count > 0)
{
return(node);
}
var boundVariableToLabels = node.Info.instantiationLabels;
if (boundVariableToLabels.Count < node.BoundVars.Count ||
boundVariableToLabels.Any(kv => kv.Value.Count == 0))
{
return(node);
}
var v = new VCExprVar($"{quantifierBindingNamePrefix}{quantifierBinding.Count}", Type.Bool);
quantifierBinding[v] = node;
quantifierInstantiationInfo[node] = new QuantifierInstantiationInfo(boundVariableToLabels);
return(v);
}
