public IEnumerable <LemmaDecl> GetHints(Expr e)
{
_hintLemmas = new List <LemmaDecl>();
tyVarTranslation = variableFactory.CreateTranslation().TypeVarTranslation;
Visit(e);
return(_hintLemmas);
}
public PassificationLemmaManager(
CFGRepr cfg,
IDictionary <Block, Block> origToPassiveBlock,
IProgramAccessor programAccessor,
IProgramAccessor passiveProgramAccessor,
Tuple <string, string> varContextNonPassivePassive,
StateRelationData oldStateRelationData,
PassiveRelationGen relationGen,
IVariableTranslationFactory varTranslationFactory,
IVariableTranslationFactory passiveTranslationFactory)
{
this.cfg = cfg;
this.origToPassiveBlock = origToPassiveBlock;
this.programAccessor = programAccessor;
this.passiveProgramAccessor = passiveProgramAccessor;
_oldStateRelationData = oldStateRelationData;
_relationGen = relationGen;
initState = IsaBoogieTerm.Normal(normalInitState);
varTranslation = varTranslationFactory.CreateTranslation().VarTranslation;
passiveVarTranslation = passiveTranslationFactory.CreateTranslation().VarTranslation;
//separate unique namer for function interpretations (since they already have a name in uniqueNamer): possible clashes
boogieContext = new BoogieContextIsa(
IsaCommonTerms.TermIdentFromName("A"),
IsaCommonTerms.TermIdentFromName("M"),
IsaCommonTerms.TermIdentFromName(varContextNonPassivePassive.Item1),
IsaCommonTerms.TermIdentFromName("\\<Gamma>"),
IsaCommonTerms.TermIdentFromName("\\<Omega>")
);
passiveVarContext = IsaCommonTerms.TermIdentFromName(varContextNonPassivePassive.Item2);
}
public BasicCmdIsaVisitor(IVariableTranslationFactory variableFactory)
{
this.variableFactory = variableFactory;
boogieVarTranslation = variableFactory.CreateTranslation();
//by sharing TypeVarTranslation, changes in the bound variables will be visible in the type visitor
typeIsaVisitor = new TypeIsaVisitor(boogieVarTranslation.TypeVarTranslation);
}
/// <summary>
/// Initializes a new instance of the <see cref="MembershipLemmaManager"/> class.
/// Generated instance only has information about global data.
/// </summary>
public MembershipLemmaManager(
IsaGlobalProgramRepr globalProgRepr,
int globalsMax,
IVariableTranslationFactory factory,
string theoryName)
{
containsLocalInformation = false;
this.factory = factory;
this.theoryName = theoryName;
typeIsaVisitor = new TypeIsaVisitor(factory.CreateTranslation().TypeVarTranslation);
basicCmdIsaVisitor = new BasicCmdIsaVisitor(factory);
isaProgramRepr = new IsaProgramRepr(globalProgRepr, null, null, null, null, null, null);
config = new IsaProgramGeneratorConfig(null, true, true, true, false, SpecsConfig.None, false);
consts = QualifyAccessName(isaProgramRepr.GlobalProgramRepr.constantsDeclDef);
globals = QualifyAccessName(isaProgramRepr.GlobalProgramRepr.globalsDeclDef);
constsAndGlobalsDefs =
new[] { consts + "_def", globals + "_def" };
constsAndGlobalsList =
IsaCommonTerms.AppendList(IsaCommonTerms.TermIdentFromName(consts),
IsaCommonTerms.TermIdentFromName(globals));
AddMinOrMaxLemma(true, globalsMax, VariableNames(constsAndGlobalsList));
AddWellFormednessLemmas();
}
public ContextElem Context()
{
return(new ContextElem(
ContextHelper.GlobalFixedVariables(boogieContext, methodData.Functions, methodData.Constants,
normalInitState, funToInterpMapping, uniqueNamer),
assmManager.AllAssumptions(funToInterpMapping, declToVCMapping, normalInitState, boogieContext,
variableFactory.CreateTranslation().VarTranslation),
assmManager.AllAssumptionLabels()
));
}
public MembershipLemmaManager(
IsaProgramGeneratorConfig config,
IsaProgramRepr isaProgramRepr,
IsaBlockInfo isaBlockInfo,
Tuple <int, int> GlobalsMaxLocalsMin,
IVariableTranslationFactory factory,
string theoryName
)
{
parent = config.parentAccessor;
this.isaProgramRepr = isaProgramRepr;
this.factory = factory;
this.theoryName = theoryName;
this.config = config;
this.isaBlockInfo = isaBlockInfo;
typeIsaVisitor = new TypeIsaVisitor(factory.CreateTranslation().TypeVarTranslation);
basicCmdIsaVisitor = new BasicCmdIsaVisitor(factory);
paramsAndLocalsDefs =
new[] { isaProgramRepr.paramsDeclDef + "_def", isaProgramRepr.localVarsDeclDef + "_def" };
parameters = config.generateParamsAndLocals
? QualifyAccessName(isaProgramRepr.paramsDeclDef)
: parent.ParamsDecl();
locals = config.generateParamsAndLocals
? QualifyAccessName(isaProgramRepr.localVarsDeclDef)
: parent.LocalsDecl();
paramsAndLocalsList =
IsaCommonTerms.AppendList(IsaCommonTerms.TermIdentFromName(parameters),
IsaCommonTerms.TermIdentFromName(locals));
consts = config.generateGlobalsAndConstants
? QualifyAccessName(isaProgramRepr.GlobalProgramRepr.constantsDeclDef)
: parent.ConstsDecl();
globals = config.generateGlobalsAndConstants
? QualifyAccessName(isaProgramRepr.GlobalProgramRepr.globalsDeclDef)
: parent.GlobalsDecl();
constsAndGlobalsDefs =
new[] { consts + "_def", globals + "_def" };
constsAndGlobalsList =
IsaCommonTerms.AppendList(IsaCommonTerms.TermIdentFromName(consts),
IsaCommonTerms.TermIdentFromName(globals));
AddDisjointnessLemmas(GlobalsMaxLocalsMin.Item1, GlobalsMaxLocalsMin.Item2);
AddWellFormednessLemmas();
}
public BoogieVariableTranslation VariableTranslation()
{
return(factory.CreateTranslation());
}
public static Theory PassificationProof(
string theoryName,
string boogieToVcTheoryName,
bool generateEndToEndLemma,
LemmaDecl boogieToVcLemma,
Term vcAssm,
CFGRepr beforePassificationCfg,
IDictionary <Block, Block> nonPassiveToPassiveBlock,
PassiveRelationGen relationGen,
IProgramAccessor beforePassiveProgAccess,
IProgramAccessor passiveProgAccess,
BoogieMethodData beforePassiveData,
IVariableTranslationFactory beforePassiveFactory,
IVariableTranslationFactory passiveFactory)
{
var varContextName = "\\<Lambda>1";
var passiveVarContextName = "\\<Lambda>2";
var varContextNonPassivePassive = Tuple.Create(varContextName, passiveVarContextName);
var oldGlobalVars = GetOldGlobalVariables(beforePassificationCfg);
var oldRelationData =
OldRelation(
oldGlobalVars,
beforePassiveFactory.CreateTranslation().VarTranslation,
out var oldRelListDecl);
var passificationProofDecls = new List <OuterDecl>();
passificationProofDecls.AddRange(oldRelListDecl);
passificationProofDecls.AddRange(oldRelationData.VarToLookupLemma.Values);
if (oldRelationData.VarToLookupLemma.Any())
{
passificationProofDecls.Add(new LemmasDecl(allOldLookupLemmasName,
oldRelationData.VarToLookupLemma.Values.Select(lemma => lemma.Name).ToList()));
}
var beforePassiveLemmaManager = new PassificationLemmaManager(
beforePassificationCfg,
nonPassiveToPassiveBlock,
beforePassiveProgAccess,
passiveProgAccess,
varContextNonPassivePassive,
oldRelationData,
relationGen,
beforePassiveFactory,
passiveFactory
);
var lemmaNamer = new IsaUniqueNamer();
var varContextAbbrev = new AbbreviationDecl(
varContextName,
new Tuple <IList <Term>, Term>(new List <Term>(), beforePassiveProgAccess.VarContext())
);
var passiveVarContextAbbrev = new AbbreviationDecl(
passiveVarContextName,
new Tuple <IList <Term>, Term>(new List <Term>(), passiveProgAccess.VarContext())
);
passificationProofDecls.Add(varContextAbbrev);
passificationProofDecls.Add(passiveVarContextAbbrev);
passificationProofDecls.AddRange(beforePassiveLemmaManager.Prelude());
var cfgLemmas = new List <OuterDecl>();
foreach (var block in beforePassificationCfg.GetBlocksBackwards())
{
var localAndCfgLemma =
beforePassiveLemmaManager.GenerateBlockLemma(
block,
GetLemmaName(block, lemmaNamer),
b => GetCfgLemmaName(b, lemmaNamer));
passificationProofDecls.Add(localAndCfgLemma.Item1);
cfgLemmas.Add(localAndCfgLemma.Item2);
}
//add cfg lemmas at the end
passificationProofDecls.AddRange(cfgLemmas);
if (generateEndToEndLemma)
{
var endToEnd = new PassificationEndToEnd();
passificationProofDecls.AddRange(endToEnd.EndToEndProof(
GetCfgLemmaName(beforePassificationCfg.entry, lemmaNamer),
boogieToVcTheoryName + "." + boogieToVcLemma.Name,
vcAssm,
beforePassiveProgAccess,
passiveProgAccess,
varContextNonPassivePassive,
oldRelationData,
beforePassificationCfg,
relationGen.LiveVarsBeforeBlock(beforePassificationCfg.entry),
passiveFactory.CreateTranslation().VarTranslation
));
}
var imports = new List <string>
{
"Boogie_Lang.Semantics", "Boogie_Lang.Util", beforePassiveProgAccess.TheoryName(),
passiveProgAccess.TheoryName(), "Boogie_Lang.PassificationML",
boogieToVcTheoryName
};
if (generateEndToEndLemma)
{
imports.Add("Boogie_Lang.PassificationEndToEnd");
}
return(new Theory(theoryName, imports, passificationProofDecls));
}
public IProgramAccessor GetIsaProgram(
string theoryName,
string procName,
BoogieMethodData methodData,
IsaProgramGeneratorConfig config,
IVariableTranslationFactory varTranslationFactory,
CFGRepr cfg,
out IList <OuterDecl> decls,
bool generateMembershipLemmas = true,
bool onlyGlobalData = false
)
{
this.varTranslationFactory = varTranslationFactory;
varTranslation = varTranslationFactory.CreateTranslation();
cmdIsaVisitor = new MultiCmdIsaVisitor(varTranslationFactory);
/*
* Term program = IsaBoogieTerm.Program(IsaCommonTerms.TermIdentFromName(funcs.name),
* new TermList(new List<Term>()),
* new TermList(new List<Term>()),
* IsaCommonTerms.TermIdentFromName(axiomsDecl.name),
* new List<Term>() { method });
*
* var list = new List<Tuple<IList<Term>, Term>>
* {
* new Tuple<IList<Term>, Term>(new List<Term>(), program)
* };
*/
//OuterDecl programDefinition = new DefDecl("ProgramM", new Tuple<IList<Term>, Term>(new List<Term>(), program));
decls = new List <OuterDecl>();
var isaGlobalProgramRepr = new IsaGlobalProgramRepr(
FunctionDeclarationsName(),
AxiomDeclarationsName(),
VariableDeclarationsName("globals"),
VariableDeclarationsName("constants")
);
var globalsMax = methodData.Constants.Count() + methodData.GlobalVars.Count() - 1;
// assume single versioning and order on constants, globals, params, locals
var localsMin = globalsMax + 1;
if (globalsMax < 0)
{
globalsMax = 0;
}
MembershipLemmaManager membershipLemmaManager;
if (onlyGlobalData)
{
membershipLemmaManager = new MembershipLemmaManager(
isaGlobalProgramRepr, globalsMax, varTranslationFactory, theoryName);
}
else
{
var outEdges = GetOutEdgesIsa(procName, cfg, out var edgeLemmas);
var blockInfo = BlockToInfo(theoryName, procName, cfg, edgeLemmas);
var isaProgramRepr = new IsaProgramRepr(
isaGlobalProgramRepr,
PreconditionDeclarationName(),
PostconditionDeclarationName(),
VariableDeclarationsName("params"),
VariableDeclarationsName("locals"),
cfgName,
procDefName);
membershipLemmaManager = new MembershipLemmaManager(config, isaProgramRepr, blockInfo,
Tuple.Create(globalsMax, localsMin), varTranslationFactory, theoryName);
var nodesToBlocks = GetNodeToBlocksIsa(cfg, blockInfo.BlockCmdsDefs);
decls.AddRange(blockInfo.BlockCmdsDefs.Values);
Term entry = new IntConst(BigNum.FromInt(cfg.GetUniqueIntLabel(cfg.entry)));
var methodBodyCFG =
IsaBoogieTerm.MethodCFGBody(
entry, IsaCommonTerms.TermIdentFromName(outEdges.Name),
IsaCommonTerms.TermIdentFromName(nodesToBlocks.Name)
);
var methodBodyDecl = GetMethodBodyCFGDecl(procName, methodBodyCFG);
decls.AddRange(
new List <OuterDecl>
{
outEdges, nodesToBlocks, methodBodyDecl
});
decls.AddRange(blockInfo.BlockCmdsLemmas.Values);
decls.AddRange(blockInfo.BlockOutEdgesLemmas.Values);
if (config.specsConfig != SpecsConfig.None)
{
OuterDecl preconditions;
OuterDecl postconditions;
if (config.specsConfig == SpecsConfig.AllPreCheckedPost)
{
preconditions = GetExprListIsa(PreconditionDeclarationName(), methodData.Preconditions.Select(pre => pre.Item1));
postconditions = GetExprListIsa(PostconditionDeclarationName(), methodData.Postconditions.Where(post => !post.Item2).Select(post => post.Item1));
}
else
{
preconditions = GetExprListIsa(PreconditionDeclarationName(), methodData.Preconditions);
postconditions = GetExprListIsa(PostconditionDeclarationName(), methodData.Postconditions);
}
decls.Add(preconditions);
decls.Add(postconditions);
}
if (config.generateParamsAndLocals)
{
decls.Add(GetVariableDeclarationsIsa("params", methodData.InParams));
decls.Add(GetVariableDeclarationsIsa("locals", methodData.Locals));
}
/* membership lemmas might still be added even if the parameter and local variable definitions are not generated
* at this point (since the variable context may still be different, which requires other lookup lemmas)
*/
if (generateMembershipLemmas)
{
membershipLemmaManager.AddVariableMembershipLemmas(methodData.InParams, VarKind.ParamOrLocal);
membershipLemmaManager.AddVariableMembershipLemmas(methodData.Locals, VarKind.ParamOrLocal);
}
}
if (config.generateAxioms)
{
decls.Add(GetAxioms(methodData.Axioms));
if (generateMembershipLemmas)
{
membershipLemmaManager.AddAxiomMembershipLemmas(methodData.Axioms);
}
}
if (config.generateFunctions)
{
decls.Add(GetFunctionDeclarationsIsa(methodData.Functions));
if (generateMembershipLemmas)
{
membershipLemmaManager.AddFunctionMembershipLemmas(methodData.Functions);
}
}
if (config.generateGlobalsAndConstants)
{
decls.Add(GetVariableDeclarationsIsa("globals", methodData.GlobalVars));
decls.Add(GetVariableDeclarationsIsa("constants", methodData.Constants));
}
if (generateMembershipLemmas)
{
membershipLemmaManager.AddVariableMembershipLemmas(methodData.GlobalVars, VarKind.Global);
membershipLemmaManager.AddVariableMembershipLemmas(methodData.Constants, VarKind.Constant);
decls.AddRange(membershipLemmaManager.OuterDecls());
}
if (config.specsConfig != SpecsConfig.None)
{
DefDecl methodDef = MethodDefinition(membershipLemmaManager, methodData, config.specsConfig);
decls.Add(methodDef);
}
return(membershipLemmaManager);
}
