private ContextElem LemmaContext(
CFGRepr cfg,
Term vcAssm
)
{
var multiRed = IsaBoogieTerm.RedCFGMulti(
BoogieContextIsa.CreateWithNewVarContext(
boogieContext,
new TermTuple(programAccessor.ConstsAndGlobalsDecl(), programAccessor.ParamsAndLocalsDecl())
),
programAccessor.CfgDecl(),
IsaBoogieTerm.CFGConfigNode(new NatConst(cfg.GetUniqueIntLabel(cfg.entry)),
IsaBoogieTerm.Normal(normalInitState)),
IsaBoogieTerm.CFGConfig(finalNodeOrReturn, finalState)
);
var closedAssm = EndToEndAssumptions.ClosednessAssumption(boogieContext.absValTyMap);
var nonEmptyTypesAssm = EndToEndAssumptions.NonEmptyTypesAssumption(boogieContext.absValTyMap);
var finterpAssm = IsaBoogieTerm.FunInterpWf(boogieContext.absValTyMap, programAccessor.FunctionsDecl(),
boogieContext.funContext);
var absValType = new VarType("a");
//need to explicitly give type for normal state, otherwise Isabelle won't know that the abstract value type is the same as used in the VC
var axiomAssm = EndToEndAssumptions.AxiomAssumption(boogieContext, programAccessor,
new TermWithExplicitType(normalInitState, IsaBoogieType.NormalStateType(absValType)));
var presAssm =
IsaBoogieTerm.ExprAllSat(boogieContext, normalInitState, programAccessor.PreconditionsDecl());
var localsAssm = EndToEndAssumptions.LocalStateAssumption(boogieContext,
IsaCommonTerms.Snd(boogieContext.varContext), normalInitState);
var globalsAssm = EndToEndAssumptions.GlobalStateAssumption(boogieContext,
IsaCommonTerms.Fst(boogieContext.varContext), normalInitState);
var oldGlobalStateAssm = EndToEndAssumptions.OldGlobalStateAssumption(normalInitState);
var binderEmptyAssm = EndToEndAssumptions.BinderStateEmpty(normalInitState);
return
(ContextElem.CreateWithAssumptions(
new List <Term>
{
multiRed, vcAssm, closedAssm, nonEmptyTypesAssm, finterpAssm, axiomAssm,
presAssm, localsAssm, globalsAssm, oldGlobalStateAssm, binderEmptyAssm
},
new List <string>
{
redAssmName, vcAssmName, closedAssmName, nonEmptyTypesAssmName, finterpAssmName, axiomAssmName,
preconditionsAssmName, paramsLocalsAssmName, constsGlobalsAssmName, oldGlobalAssmName,
binderEmptyAssmName
}
));
}
/// <summary>The returned list in-sync with <see cref="AllAssumptionLabels" />.</summary>
public IList <Term> AllAssumptions(
IDictionary <Function, TermIdent> funInterpMapping,
IDictionary <NamedDeclaration, Term> declToVCMapping,
Term state,
BoogieContextIsa boogieContext,
IVariableTranslation <Variable> varTranslation
)
{
var assumptions = new List <Term>();
foreach (var obj in _assumptionLabelMap.Keys)
{
if (obj is Function f)
{
assumptions.Add(LemmaHelper.FunctionCtxtWfAssm(f, funInterpMapping, boogieContext));
assumptions.Add(LemmaHelper.FunctionVcCorresAssm(f, funInterpMapping, declToVCMapping,
boogieContext));
}
else if (obj is Variable v)
{
assumptions.Add(LemmaHelper.LocalStateVariableAssumption(v, boogieContext.varContext, state,
declToVCMapping, varTranslation));
if (!TypeUtil.IsPrimitive(v.TypedIdent.Type))
{
assumptions.Add(LemmaHelper.VariableTypeAssumption(
v,
declToVCMapping[v],
new TypeIsaVisitor(_factory.CreateEmptyTranslation().TypeVarTranslation),
boogieContext.absValTyMap));
}
}
else if (obj is SpecialAssumptionsKind kind)
{
switch (kind)
{
case SpecialAssumptionsKind.TypeValClosed:
assumptions.Add(EndToEndAssumptions.ClosednessAssumption(boogieContext.absValTyMap));
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}
return(assumptions);
}