public StagedHoudini(Program program, Func <string, Program> ProgramFromFile)
{
this.program = program;
this.ProgramFromFile = ProgramFromFile;
this.houdiniInstances = new List <Houdini> [CommandLineOptions.Clo.StagedHoudiniThreads];
for (int i = 0; i < CommandLineOptions.Clo.StagedHoudiniThreads; i++)
{
houdiniInstances[i] = new List <Houdini>();
}
var candidateDependenceAnalyser = new CandidateDependenceAnalyser(program);
candidateDependenceAnalyser.Analyse();
this.plan = candidateDependenceAnalyser.ApplyStages();
if (CommandLineOptions.Clo.Trace)
{
candidateDependenceAnalyser.dump();
EmitProgram("staged.bpl");
}
}
public StagedHoudini(Program program, HoudiniSession.HoudiniStatistics houdiniStats,
Func <string, Program> ProgramFromFile)
{
this.program = program;
this.houdiniStats = houdiniStats;
this.ProgramFromFile = ProgramFromFile;
this.houdiniInstances = new List <Houdini> [CommandLineOptions.Clo.StagedHoudiniThreads];
for (int i = 0; i < CommandLineOptions.Clo.StagedHoudiniThreads; i++)
{
houdiniInstances[i] = new List <Houdini>();
}
BreakApartConjunctionsInAnnotations();
var annotationDependenceAnalyser = new AnnotationDependenceAnalyser(program);
annotationDependenceAnalyser.Analyse();
this.plan = annotationDependenceAnalyser.ApplyStages();
if (CommandLineOptions.Clo.Trace)
{
annotationDependenceAnalyser.dump();
if (CommandLineOptions.Clo.DebugStagedHoudini)
{
Console.WriteLine("Plan\n====\n");
if (plan == null)
{
Console.WriteLine("No plan, as there were no stages");
}
else
{
Console.WriteLine(this.plan);
}
}
EmitProgram("staged.bpl");
}
}
public StagedHoudiniPlan ApplyStages()
{
if (NoStages())
{
Debug.Assert(false);
var TrivialGraph = new Graph <ScheduledStage>();
TrivialGraph.AddSource(new ScheduledStage(0, new HashSet <string>()));
return(new StagedHoudiniPlan(TrivialGraph));
}
#region Assign annotations to stages at a given level of granularity
switch (CommandLineOptions.Clo.StagedHoudini)
{
case COARSE_STAGES:
Plan = ComputeCoarseStages();
break;
case FINE_STAGES:
Plan = ComputeFineStages();
break;
case BALANCED_STAGES:
Plan = ComputeBalancedStages();
break;
default:
Debug.Assert(false);
Plan = null;
break;
}
foreach (var c in AllAnnotationIdentifiers())
{
Debug.Assert(Plan.StageForAnnotation(c) != null);
}
#endregion
#region Generate boolean variables to control stages
var stageToActiveBoolean = new Dictionary <int, Constant>();
var stageToCompleteBoolean = new Dictionary <int, Constant>();
foreach (var stage in Plan)
{
var stageActive = new Constant(Token.NoToken,
new TypedIdent(Token.NoToken, "_stage_" + stage.GetId() + "_active", Type.Bool),
false);
stageActive.AddAttribute("stage_active",
new object[] { new LiteralExpr(Token.NoToken, BigNum.FromInt(stage.GetId())) });
prog.AddTopLevelDeclaration(stageActive);
stageToActiveBoolean[stage.GetId()] = stageActive;
var stageComplete = new Constant(Token.NoToken,
new TypedIdent(Token.NoToken, "_stage_" + stage.GetId() + "_complete", Type.Bool),
false);
stageComplete.AddAttribute("stage_complete",
new object[] { new LiteralExpr(Token.NoToken, BigNum.FromInt(stage.GetId())) });
prog.AddTopLevelDeclaration(stageComplete);
stageToCompleteBoolean[stage.GetId()] = stageComplete;
}
#endregion
#region Adapt annotation assertions to take account of stages
foreach (var b in prog.Implementations.Select(Item => Item.Blocks).SelectMany(Item => Item))
{
List <Cmd> newCmds = new List <Cmd>();
foreach (var cmd in b.Cmds)
{
var a = cmd as AssertCmd;
string c;
if (a != null)
{
if (Houdini.MatchCandidate(a.Expr, CandidateIdentifiers, out c))
{
newCmds.Add(new AssertCmd(a.tok, Houdini.AddConditionToCandidate(a.Expr,
Expr.Ident(stageToActiveBoolean[Plan.StageForAnnotation(c).GetId()]), c), a.Attributes));
newCmds.Add(new AssumeCmd(a.tok, Houdini.AddConditionToCandidate(a.Expr,
Expr.Ident(stageToCompleteBoolean[Plan.StageForAnnotation(c).GetId()]), c), a.Attributes));
}
else if (QKeyValue.FindBoolAttribute(a.Attributes, "originated_from_invariant"))
{
string tag = GetTagFromNonCandidateAttributes(a.Attributes);
if (tag == null)
{
newCmds.Add(a);
}
else
{
newCmds.Add(new AssertCmd(a.tok, Expr.Imp(
Expr.Ident(stageToActiveBoolean[Plan.StageForAnnotation(tag).GetId()]), a.Expr),
a.Attributes));
newCmds.Add(new AssumeCmd(a.tok, Expr.Imp(
Expr.Ident(stageToCompleteBoolean[Plan.StageForAnnotation(tag).GetId()]), a.Expr),
a.Attributes));
}
}
}
else
{
newCmds.Add(cmd);
}
}
b.Cmds = newCmds;
}
#endregion
#region Adapt pre/postconditions to take account of stages
foreach (var p in prog.NonInlinedProcedures())
{
#region Handle the preconditions
{
List <Requires> newRequires = new List <Requires>();
foreach (Requires r in p.Requires)
{
string c;
if (Houdini.MatchCandidate(r.Condition, CandidateIdentifiers, out c))
{
newRequires.Add(new Requires(r.tok, false,
Houdini.AddConditionToCandidate(r.Condition,
Expr.Ident(stageToActiveBoolean[Plan.StageForAnnotation(c).GetId()]), c),
r.Comment, r.Attributes));
newRequires.Add(new Requires(r.tok, true,
Houdini.AddConditionToCandidate(r.Condition,
Expr.Ident(stageToCompleteBoolean[Plan.StageForAnnotation(c).GetId()]), c),
r.Comment, r.Attributes));
}
else
{
string tag = GetTagFromNonCandidateAttributes(r.Attributes);
if (tag == null)
{
newRequires.Add(r);
}
else
{
newRequires.Add(new Requires(r.tok, false,
Expr.Imp(Expr.Ident(stageToActiveBoolean[Plan.StageForAnnotation(tag).GetId()]), r.Condition),
r.Comment, r.Attributes));
newRequires.Add(new Requires(r.tok, true,
Expr.Imp(Expr.Ident(stageToCompleteBoolean[Plan.StageForAnnotation(tag).GetId()]), r.Condition),
r.Comment, r.Attributes));
}
}
}
p.Requires = newRequires;
}
#endregion
#region Handle the postconditions
{
List <Ensures> newEnsures = new List <Ensures>();
foreach (Ensures e in p.Ensures)
{
string c;
if (Houdini.MatchCandidate(e.Condition, CandidateIdentifiers, out c))
{
int stage = Plan.StageForAnnotation(c).GetId();
newEnsures.Add(new Ensures(e.tok, false,
Houdini.AddConditionToCandidate(e.Condition,
Expr.Ident(stageToActiveBoolean[stage]), c),
e.Comment, e.Attributes));
newEnsures.Add(new Ensures(e.tok, true,
Houdini.AddConditionToCandidate(e.Condition,
Expr.Ident(stageToCompleteBoolean[stage]), c),
e.Comment, e.Attributes));
}
else
{
string tag = GetTagFromNonCandidateAttributes(e.Attributes);
if (tag == null)
{
newEnsures.Add(e);
}
else
{
newEnsures.Add(new Ensures(e.tok, false,
Expr.Imp(Expr.Ident(stageToActiveBoolean[Plan.StageForAnnotation(tag).GetId()]), e.Condition),
e.Comment, e.Attributes));
newEnsures.Add(new Ensures(e.tok, true,
Expr.Imp(Expr.Ident(stageToCompleteBoolean[Plan.StageForAnnotation(tag).GetId()]), e.Condition),
e.Comment, e.Attributes));
}
}
}
p.Ensures = newEnsures;
}
#endregion
}
#endregion
return(Plan);
}
public StagedHoudiniPlan ApplyStages()
{
if (NoStages())
{
return(null);
}
#region Assign candidates to stages at a given level of granularity
switch (CommandLineOptions.Clo.StagedHoudini)
{
case COARSE_STAGES:
Plan = ComputeCoarseStages();
break;
case FINE_STAGES:
Plan = ComputeFineStages();
break;
case BALANCED_STAGES:
Plan = ComputeBalancedStages();
break;
default:
Debug.Assert(false);
Plan = null;
break;
}
foreach (var c in candidates)
{
Debug.Assert(Plan.StageForCandidate(c) != null);
}
#endregion
#region Generate boolean variables to control stages
var stageToActiveBoolean = new Dictionary <int, Constant>();
var stageToCompleteBoolean = new Dictionary <int, Constant>();
foreach (var stage in Plan)
{
var stageActive = new Constant(Token.NoToken,
new TypedIdent(Token.NoToken, "_stage_" + stage.GetId() + "_active", Type.Bool),
false);
stageActive.AddAttribute("stage_active", new object[] { new LiteralExpr(Token.NoToken, BigNum.FromInt(stage.GetId())) });
prog.TopLevelDeclarations.Add(stageActive);
stageToActiveBoolean[stage.GetId()] = stageActive;
var stageComplete = new Constant(Token.NoToken,
new TypedIdent(Token.NoToken, "_stage_" + stage.GetId() + "_complete", Type.Bool),
false);
stageComplete.AddAttribute("stage_complete", new object[] { new LiteralExpr(Token.NoToken, BigNum.FromInt(stage.GetId())) });
prog.TopLevelDeclarations.Add(stageComplete);
stageToCompleteBoolean[stage.GetId()] = stageComplete;
}
#endregion
#region Adapt candidate assertions to take account of stages
foreach (var b in prog.TopLevelDeclarations.OfType <Implementation>().Select(Item => Item.Blocks).SelectMany(Item => Item))
{
List <Cmd> newCmds = new List <Cmd>();
foreach (var cmd in b.Cmds)
{
var a = cmd as AssertCmd;
string c;
if (a != null && (Houdini.MatchCandidate(a.Expr, candidates, out c)))
{
newCmds.Add(new AssertCmd(a.tok, Houdini.AddConditionToCandidate(a.Expr,
new IdentifierExpr(Token.NoToken, stageToActiveBoolean[Plan.StageForCandidate(c).GetId()]), c), a.Attributes));
newCmds.Add(new AssumeCmd(a.tok, Houdini.AddConditionToCandidate(a.Expr,
new IdentifierExpr(Token.NoToken, stageToCompleteBoolean[Plan.StageForCandidate(c).GetId()]), c), a.Attributes));
}
else
{
newCmds.Add(cmd);
}
}
b.Cmds = newCmds;
}
#endregion
#region Adapt candidate pre/postconditions to take account of stages
foreach (var p in prog.TopLevelDeclarations.OfType <Procedure>())
{
#region Handle the preconditions
List <Requires> newRequires = new List <Requires>();
foreach (Requires r in p.Requires)
{
string c;
if (Houdini.MatchCandidate(r.Condition, candidates, out c))
{
newRequires.Add(new Requires(r.tok, false,
Houdini.AddConditionToCandidate(r.Condition,
new IdentifierExpr(Token.NoToken, stageToActiveBoolean[Plan.StageForCandidate(c).GetId()]), c),
r.Comment, r.Attributes));
newRequires.Add(new Requires(r.tok, true,
Houdini.AddConditionToCandidate(r.Condition,
new IdentifierExpr(Token.NoToken, stageToCompleteBoolean[Plan.StageForCandidate(c).GetId()]), c),
r.Comment, r.Attributes));
}
else
{
newRequires.Add(r);
}
}
p.Requires = newRequires;
#endregion
#region Handle the postconditions
List <Ensures> newEnsures = new List <Ensures>();
foreach (Ensures e in p.Ensures)
{
string c;
if (Houdini.MatchCandidate(e.Condition, candidates, out c))
{
int stage = Plan.StageForCandidate(c).GetId();
Constant activeBoolean = stageToActiveBoolean[stage];
newEnsures.Add(new Ensures(e.tok, false,
Houdini.AddConditionToCandidate(e.Condition,
new IdentifierExpr(Token.NoToken, activeBoolean), c),
e.Comment, e.Attributes));
newEnsures.Add(new Ensures(e.tok, true,
Houdini.AddConditionToCandidate(e.Condition,
new IdentifierExpr(Token.NoToken, stageToCompleteBoolean[stage]), c),
e.Comment, e.Attributes));
}
else
{
newEnsures.Add(e);
}
}
p.Ensures = newEnsures;
#endregion
}
#endregion
return(Plan);
}