diff options
| author |  Unknown <afd@afd-THINK.home> | 2012-08-14 08:13:56 +0100 |
|---|---|---|
| committer | Unknown <afd@afd-THINK.home> | 2012-08-14 08:13:56 +0100 |
| commit | 6b5e69f1702f9acad0cab789e7570070e8e745c3 (patch) | |
| tree | 6ab8ba45485fc60b5c0d22860fbc63460f07d7f5 /Source/GPUVerifyBoogieDriver | |
| parent | abaeb63964d453b32bc40f820d54d108a354b5a9 (diff) | |
Added GPUVerifyBoogieDriver project.
Contributed by Egor Kyshtymov.
Diffstat (limited to 'Source/GPUVerifyBoogieDriver')
3 files changed, 1135 insertions, 0 deletions
diff --git a/Source/GPUVerifyBoogieDriver/GPUVerifyBoogieDriver.cs b/Source/GPUVerifyBoogieDriver/GPUVerifyBoogieDriver.cs new file mode 100644 index 00000000..a3423b42 --- /dev/null +++ b/Source/GPUVerifyBoogieDriver/GPUVerifyBoogieDriver.cs @@ -0,0 +1,1008 @@ +//-----------------------------------------------------------------------------
+//
+// Copyright (C) Microsoft Corporation. All Rights Reserved.
+//
+//-----------------------------------------------------------------------------
+//---------------------------------------------------------------------------------------------
+// OnlyBoogie OnlyBoogie.ssc
+// - main program for taking a BPL program and verifying it
+//---------------------------------------------------------------------------------------------
+
+namespace Microsoft.Boogie
+{
+ using System;
+ using System.IO;
+ using System.Collections;
+ using System.Collections.Generic;
+ using PureCollections;
+ using Microsoft.Boogie;
+ using Microsoft.Boogie.AbstractInterpretation;
+ using System.Diagnostics.Contracts;
+ using System.Diagnostics;
+ using System.Linq;
+ using VC;
+ using AI = Microsoft.AbstractInterpretationFramework;
+ using BoogiePL = Microsoft.Boogie;
+
+ /*
+ The following assemblies are referenced because they are needed at runtime, not at compile time:
+ BaseTypes
+ Provers.Z3
+ System.Compiler.Framework
+ */
+
+ public class GPUVerifyBoogieDriver
+ {
+ // ------------------------------------------------------------------------
+ // Main
+
+ public static void Main(string[] args)
+ {
+ Contract.Requires(cce.NonNullElements(args));
+ CommandLineOptions.Install(new CommandLineOptions());
+
+ CommandLineOptions.Clo.RunningBoogieFromCommandLine = true;
+ if (!CommandLineOptions.Clo.Parse(args))
+ {
+ goto END;
+ }
+ if (CommandLineOptions.Clo.Files.Count == 0)
+ {
+ ErrorWriteLine("*** Error: No input files were specified.");
+ goto END;
+ }
+ if (CommandLineOptions.Clo.XmlSink != null)
+ {
+ string errMsg = CommandLineOptions.Clo.XmlSink.Open();
+ if (errMsg != null)
+ {
+ ErrorWriteLine("*** Error: " + errMsg);
+ goto END;
+ }
+ }
+ if (!CommandLineOptions.Clo.DontShowLogo)
+ {
+ Console.WriteLine(CommandLineOptions.Clo.Version);
+ }
+ if (CommandLineOptions.Clo.ShowEnv == CommandLineOptions.ShowEnvironment.Always)
+ {
+ Console.WriteLine("---Command arguments");
+ foreach (string arg in args)
+ {
+ Contract.Assert(arg != null);
+ Console.WriteLine(arg);
+ }
+
+ Console.WriteLine("--------------------");
+ }
+
+ Helpers.ExtraTraceInformation("Becoming sentient");
+
+ List<string> fileList = new List<string>();
+ foreach (string file in CommandLineOptions.Clo.Files)
+ {
+ string extension = Path.GetExtension(file);
+ if (extension != null)
+ {
+ extension = extension.ToLower();
+ }
+ if (extension == ".txt")
+ {
+ StreamReader stream = new StreamReader(file);
+ string s = stream.ReadToEnd();
+ fileList.AddRange(s.Split(new char[3] { ' ', '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries));
+ }
+ else
+ {
+ fileList.Add(file);
+ }
+ }
+ foreach (string file in fileList)
+ {
+ Contract.Assert(file != null);
+ string extension = Path.GetExtension(file);
+ if (extension != null)
+ {
+ extension = extension.ToLower();
+ }
+ if (extension != ".bpl")
+ {
+ ErrorWriteLine("*** Error: '{0}': Filename extension '{1}' is not supported. Input files must be BoogiePL programs (.bpl).", file,
+ extension == null ? "" : extension);
+ goto END;
+ }
+ }
+ ProcessFiles(fileList);
+
+ END:
+ if (CommandLineOptions.Clo.XmlSink != null)
+ {
+ CommandLineOptions.Clo.XmlSink.Close();
+ }
+ if (CommandLineOptions.Clo.Wait)
+ {
+ Console.WriteLine("Press Enter to exit.");
+ Console.ReadLine();
+ }
+ }
+
+ public static void ErrorWriteLine(string s)
+ {
+ Contract.Requires(s != null);
+ if (!s.Contains("Error: ") && !s.Contains("Error BP"))
+ {
+ Console.WriteLine(s);
+ return;
+ }
+
+ // split the string up into its first line and the remaining lines
+ string remaining = null;
+ int i = s.IndexOf('\r');
+ if (0 <= i)
+ {
+ remaining = s.Substring(i + 1);
+ if (remaining.StartsWith("\n"))
+ {
+ remaining = remaining.Substring(1);
+ }
+ s = s.Substring(0, i);
+ }
+
+ ConsoleColor col = Console.ForegroundColor;
+ Console.ForegroundColor = ConsoleColor.Red;
+ Console.WriteLine(s);
+ Console.ForegroundColor = col;
+
+ if (remaining != null)
+ {
+ Console.WriteLine(remaining);
+ }
+ }
+
+ public static void ErrorWriteLine(string format, params object[] args)
+ {
+ Contract.Requires(format != null);
+ string s = string.Format(format, args);
+ ErrorWriteLine(s);
+ }
+
+ public static void AdvisoryWriteLine(string format, params object[] args)
+ {
+ Contract.Requires(format != null);
+ ConsoleColor col = Console.ForegroundColor;
+ Console.ForegroundColor = ConsoleColor.Yellow;
+ Console.WriteLine(format, args);
+ Console.ForegroundColor = col;
+ }
+
+ enum FileType
+ {
+ Unknown,
+ Cil,
+ Bpl,
+ Dafny
+ };
+
+ static void ProcessFiles(List<string> fileNames)
+ {
+ Contract.Requires(cce.NonNullElements(fileNames));
+ using (XmlFileScope xf = new XmlFileScope(CommandLineOptions.Clo.XmlSink, fileNames[fileNames.Count - 1]))
+ {
+ //BoogiePL.Errors.count = 0;
+ Program program = ParseBoogieProgram(fileNames, false);
+ if (program == null)
+ return;
+ if (CommandLineOptions.Clo.PrintFile != null)
+ {
+ PrintBplFile(CommandLineOptions.Clo.PrintFile, program, false);
+ }
+
+ PipelineOutcome oc = ResolveAndTypecheck(program, fileNames[fileNames.Count - 1]);
+ if (oc != PipelineOutcome.ResolvedAndTypeChecked)
+ return;
+ //BoogiePL.Errors.count = 0;
+
+ // Do bitvector analysis
+ if (CommandLineOptions.Clo.DoBitVectorAnalysis)
+ {
+ Microsoft.Boogie.BitVectorAnalysis.DoBitVectorAnalysis(program);
+ PrintBplFile(CommandLineOptions.Clo.BitVectorAnalysisOutputBplFile, program, false);
+ return;
+ }
+
+ if (CommandLineOptions.Clo.PrintCFGPrefix != null)
+ {
+ foreach (var impl in program.TopLevelDeclarations.OfType<Implementation>())
+ {
+ using (StreamWriter sw = new StreamWriter(CommandLineOptions.Clo.PrintCFGPrefix + "." + impl.Name + ".dot"))
+ {
+ sw.Write(program.ProcessLoops(impl).ToDot());
+ }
+ }
+ }
+
+ EliminateDeadVariablesAndInline(program);
+
+ int errorCount, verified, inconclusives, timeOuts, outOfMemories;
+ oc = InferAndVerify(program, out errorCount, out verified, out inconclusives, out timeOuts, out outOfMemories);
+ switch (oc)
+ {
+ case PipelineOutcome.Done:
+ case PipelineOutcome.VerificationCompleted:
+ WriteTrailer(verified, errorCount, inconclusives, timeOuts, outOfMemories);
+ break;
+ default:
+ break;
+ }
+ }
+ }
+
+
+ static void PrintBplFile(string filename, Program program, bool allowPrintDesugaring)
+ {
+ Contract.Requires(program != null);
+ Contract.Requires(filename != null);
+ bool oldPrintDesugaring = CommandLineOptions.Clo.PrintDesugarings;
+ if (!allowPrintDesugaring)
+ {
+ CommandLineOptions.Clo.PrintDesugarings = false;
+ }
+ using (TokenTextWriter writer = filename == "-" ?
+ new TokenTextWriter("<console>", Console.Out) :
+ new TokenTextWriter(filename))
+ {
+ if (CommandLineOptions.Clo.ShowEnv != CommandLineOptions.ShowEnvironment.Never)
+ {
+ writer.WriteLine("// " + CommandLineOptions.Clo.Version);
+ writer.WriteLine("// " + CommandLineOptions.Clo.Environment);
+ }
+ writer.WriteLine();
+ program.Emit(writer);
+ }
+ CommandLineOptions.Clo.PrintDesugarings = oldPrintDesugaring;
+ }
+
+
+ static bool ProgramHasDebugInfo(Program program)
+ {
+ Contract.Requires(program != null);
+ // We inspect the last declaration because the first comes from the prelude and therefore always has source context.
+ return program.TopLevelDeclarations.Count > 0 &&
+ ((cce.NonNull(program.TopLevelDeclarations)[program.TopLevelDeclarations.Count - 1]).tok.IsValid);
+ }
+
+
+ /// <summary>
+ /// Inform the user about something and proceed with translation normally.
+ /// Print newline after the message.
+ /// </summary>
+ public static void Inform(string s)
+ {
+ if (!CommandLineOptions.Clo.Trace)
+ {
+ return;
+ }
+ Console.WriteLine(s);
+ }
+
+ static void WriteTrailer(int verified, int errors, int inconclusives, int timeOuts, int outOfMemories)
+ {
+ Contract.Requires(0 <= errors && 0 <= inconclusives && 0 <= timeOuts && 0 <= outOfMemories);
+ Console.WriteLine();
+ if (CommandLineOptions.Clo.vcVariety == CommandLineOptions.VCVariety.Doomed)
+ {
+ Console.Write("{0} finished with {1} credible, {2} doomed{3}", CommandLineOptions.Clo.DescriptiveToolName, verified, errors, errors == 1 ? "" : "s");
+ }
+ else
+ {
+ Console.Write("{0} finished with {1} verified, {2} error{3}", CommandLineOptions.Clo.DescriptiveToolName, verified, errors, errors == 1 ? "" : "s");
+ }
+ if (inconclusives != 0)
+ {
+ Console.Write(", {0} inconclusive{1}", inconclusives, inconclusives == 1 ? "" : "s");
+ }
+ if (timeOuts != 0)
+ {
+ Console.Write(", {0} time out{1}", timeOuts, timeOuts == 1 ? "" : "s");
+ }
+ if (outOfMemories != 0)
+ {
+ Console.Write(", {0} out of memory", outOfMemories);
+ }
+ Console.WriteLine();
+ Console.Out.Flush();
+ }
+
+
+
+ static void ReportBplError(Absy node, string message, bool error, bool showBplLocation)
+ {
+ int failLine = -1;
+ int failCol = -1;
+ string failFile = null;
+ string locinfo = null;
+
+ if (node is PredicateCmd)
+ {
+ PredicateCmd c = (PredicateCmd)node;
+ failLine = QKeyValue.FindIntAttribute(c.Attributes, "line", -1);
+ failCol = QKeyValue.FindIntAttribute(c.Attributes, "col", -1);
+ failFile = QKeyValue.FindStringAttribute(c.Attributes, "fname");
+ }
+ else if (node is Requires)
+ {
+ Requires c = (Requires)node;
+ failLine = QKeyValue.FindIntAttribute(c.Attributes, "line", -1);
+ failCol = QKeyValue.FindIntAttribute(c.Attributes, "col", -1);
+ failFile = QKeyValue.FindStringAttribute(c.Attributes, "fname");
+ }
+ else if (node is Ensures)
+ {
+ Ensures c = (Ensures)node;
+ failLine = QKeyValue.FindIntAttribute(c.Attributes, "line", -1);
+ failCol = QKeyValue.FindIntAttribute(c.Attributes, "col", -1);
+ failFile = QKeyValue.FindStringAttribute(c.Attributes, "fname");
+ }
+ else if (node is CallCmd)
+ {
+ CallCmd c = (CallCmd)node;
+ failLine = QKeyValue.FindIntAttribute(c.Attributes, "line", -1);
+ failCol = QKeyValue.FindIntAttribute(c.Attributes, "col", -1);
+ failFile = QKeyValue.FindStringAttribute(c.Attributes, "fname");
+ }
+
+ if (showBplLocation && failLine != -1 && failCol != -1 && failFile != null)
+ {
+ locinfo = "File: \t" + failFile +
+ "\nLine:\t" + failLine +
+ "\nCol:\t" + failCol + "\n";
+ }
+ Contract.Requires(message != null);
+ Contract.Requires(node != null);
+ IToken tok = node.tok;
+ if (error)
+ {
+ ErrorWriteLine(message);
+ }
+ else
+ {
+ Console.WriteLine(message);
+ }
+ if (!string.IsNullOrEmpty(locinfo))
+ {
+ ErrorWriteLine(locinfo);
+ }
+ else
+ {
+ ErrorWriteLine("Sourceloc info not found for: {0}({1},{2})\n", tok.filename, tok.line, tok.col);
+ }
+ }
+
+ /// <summary>
+ /// Parse the given files into one Boogie program. If an I/O or parse error occurs, an error will be printed
+ /// and null will be returned. On success, a non-null program is returned.
+ /// </summary>
+ static Program ParseBoogieProgram(List<string> fileNames, bool suppressTraceOutput)
+ {
+ Contract.Requires(cce.NonNullElements(fileNames));
+ //BoogiePL.Errors.count = 0;
+ Program program = null;
+ bool okay = true;
+ for (int fileId = 0; fileId < fileNames.Count; fileId++)
+ {
+ string bplFileName = fileNames[fileId];
+ if (!suppressTraceOutput)
+ {
+ if (CommandLineOptions.Clo.XmlSink != null)
+ {
+ CommandLineOptions.Clo.XmlSink.WriteFileFragment(bplFileName);
+ }
+ if (CommandLineOptions.Clo.Trace)
+ {
+ Console.WriteLine("Parsing " + bplFileName);
+ }
+ }
+
+ Program programSnippet;
+ int errorCount;
+ try
+ {
+ var defines = new List<string>() { "FILE_" + fileId };
+ errorCount = BoogiePL.Parser.Parse(bplFileName, defines, out programSnippet);
+ if (programSnippet == null || errorCount != 0)
+ {
+ Console.WriteLine("{0} parse errors detected in {1}", errorCount, bplFileName);
+ okay = false;
+ continue;
+ }
+ }
+ catch (IOException e)
+ {
+ ErrorWriteLine("Error opening file \"{0}\": {1}", bplFileName, e.Message);
+ okay = false;
+ continue;
+ }
+ if (program == null)
+ {
+ program = programSnippet;
+ }
+ else if (programSnippet != null)
+ {
+ program.TopLevelDeclarations.AddRange(programSnippet.TopLevelDeclarations);
+ }
+ }
+ if (!okay)
+ {
+ return null;
+ }
+ else if (program == null)
+ {
+ return new Program();
+ }
+ else
+ {
+ return program;
+ }
+ }
+
+
+ enum PipelineOutcome
+ {
+ Done,
+ ResolutionError,
+ TypeCheckingError,
+ ResolvedAndTypeChecked,
+ FatalError,
+ VerificationCompleted
+ }
+
+ /// <summary>
+ /// Resolves and type checks the given Boogie program. Any errors are reported to the
+ /// console. Returns:
+ /// - Done if no errors occurred, and command line specified no resolution or no type checking.
+ /// - ResolutionError if a resolution error occurred
+ /// - TypeCheckingError if a type checking error occurred
+ /// - ResolvedAndTypeChecked if both resolution and type checking succeeded
+ /// </summary>
+ static PipelineOutcome ResolveAndTypecheck(Program program, string bplFileName)
+ {
+ Contract.Requires(program != null);
+ Contract.Requires(bplFileName != null);
+ // ---------- Resolve ------------------------------------------------------------
+
+ if (CommandLineOptions.Clo.NoResolve)
+ {
+ return PipelineOutcome.Done;
+ }
+
+ int errorCount = program.Resolve();
+ if (errorCount != 0)
+ {
+ Console.WriteLine("{0} name resolution errors detected in {1}", errorCount, bplFileName);
+ return PipelineOutcome.ResolutionError;
+ }
+
+ // ---------- Type check ------------------------------------------------------------
+
+ if (CommandLineOptions.Clo.NoTypecheck)
+ {
+ return PipelineOutcome.Done;
+ }
+
+ errorCount = program.Typecheck();
+ if (errorCount != 0)
+ {
+ Console.WriteLine("{0} type checking errors detected in {1}", errorCount, bplFileName);
+ return PipelineOutcome.TypeCheckingError;
+ }
+
+ if (CommandLineOptions.Clo.PrintFile != null && CommandLineOptions.Clo.PrintDesugarings)
+ {
+ // if PrintDesugaring option is engaged, print the file here, after resolution and type checking
+ PrintBplFile(CommandLineOptions.Clo.PrintFile, program, true);
+ }
+
+ return PipelineOutcome.ResolvedAndTypeChecked;
+ }
+
+ static void EliminateDeadVariablesAndInline(Program program)
+ {
+ Contract.Requires(program != null);
+ // Eliminate dead variables
+ Microsoft.Boogie.UnusedVarEliminator.Eliminate(program);
+
+ // Collect mod sets
+ if (CommandLineOptions.Clo.DoModSetAnalysis)
+ {
+ Microsoft.Boogie.ModSetCollector.DoModSetAnalysis(program);
+ }
+
+ // Coalesce blocks
+ if (CommandLineOptions.Clo.CoalesceBlocks)
+ {
+ if (CommandLineOptions.Clo.Trace)
+ Console.WriteLine("Coalescing blocks...");
+ Microsoft.Boogie.BlockCoalescer.CoalesceBlocks(program);
+ }
+
+ // Inline
+ var TopLevelDeclarations = cce.NonNull(program.TopLevelDeclarations);
+
+ if (CommandLineOptions.Clo.ProcedureInlining != CommandLineOptions.Inlining.None)
+ {
+ bool inline = false;
+ foreach (var d in TopLevelDeclarations)
+ {
+ if (d.FindExprAttribute("inline") != null)
+ {
+ inline = true;
+ }
+ }
+ if (inline)
+ {
+ foreach (var d in TopLevelDeclarations)
+ {
+ var impl = d as Implementation;
+ if (impl != null)
+ {
+ impl.OriginalBlocks = impl.Blocks;
+ impl.OriginalLocVars = impl.LocVars;
+ }
+ }
+ foreach (var d in TopLevelDeclarations)
+ {
+ var impl = d as Implementation;
+ if (impl != null && !impl.SkipVerification)
+ {
+ Inliner.ProcessImplementation(program, impl);
+ }
+ }
+ foreach (var d in TopLevelDeclarations)
+ {
+ var impl = d as Implementation;
+ if (impl != null)
+ {
+ impl.OriginalBlocks = null;
+ impl.OriginalLocVars = null;
+ }
+ }
+ }
+ }
+ }
+
+ static QKeyValue extractSourcelocAttrs(BlockSeq s)
+ {
+ foreach (Block b in s)
+ {
+ foreach (Cmd c in b.Cmds)
+ {
+ if (c is AssertCmd)
+ {
+ if (QKeyValue.FindBoolAttribute(((AssertCmd)c).Attributes, "sourceloc"))
+ {
+ return ((AssertCmd)c).Attributes;
+ }
+ }
+ }
+ }
+ return null;
+ }
+
+ static void ProcessOutcome(VC.VCGen.Outcome outcome, List<Counterexample> errors, string timeIndication,
+ ref int errorCount, ref int verified, ref int inconclusives, ref int timeOuts, ref int outOfMemories)
+ {
+ switch (outcome)
+ {
+ default:
+ Contract.Assert(false); // unexpected outcome
+ throw new cce.UnreachableException();
+ case VCGen.Outcome.ReachedBound:
+ Inform(String.Format("{0}verified", timeIndication));
+ Console.WriteLine(string.Format("Stratified Inlining: Reached recursion bound of {0}", CommandLineOptions.Clo.RecursionBound));
+ verified++;
+ break;
+ case VCGen.Outcome.Correct:
+ if (CommandLineOptions.Clo.vcVariety == CommandLineOptions.VCVariety.Doomed)
+ {
+ Inform(String.Format("{0}credible", timeIndication));
+ verified++;
+ }
+ else
+ {
+ Inform(String.Format("{0}verified", timeIndication));
+ verified++;
+ }
+ break;
+ case VCGen.Outcome.TimedOut:
+ timeOuts++;
+ Inform(String.Format("{0}timed out", timeIndication));
+ break;
+ case VCGen.Outcome.OutOfMemory:
+ outOfMemories++;
+ Inform(String.Format("{0}out of memory", timeIndication));
+ break;
+ case VCGen.Outcome.Inconclusive:
+ inconclusives++;
+ Inform(String.Format("{0}inconclusive", timeIndication));
+ break;
+ case VCGen.Outcome.Errors:
+ if (CommandLineOptions.Clo.vcVariety == CommandLineOptions.VCVariety.Doomed)
+ {
+ Inform(String.Format("{0}doomed", timeIndication));
+ errorCount++;
+ } //else {
+ Contract.Assert(errors != null); // guaranteed by postcondition of VerifyImplementation
+ {
+ // BP1xxx: Parsing errors
+ // BP2xxx: Name resolution errors
+ // BP3xxx: Typechecking errors
+ // BP4xxx: Abstract interpretation errors (Is there such a thing?)
+ // BP5xxx: Verification errors
+
+ errors.Sort(new CounterexampleComparer());
+ foreach (Counterexample error in errors)
+ {
+ if (error is CallCounterexample)
+ {
+ CallCounterexample err = (CallCounterexample)error;
+ if (!CommandLineOptions.Clo.ForceBplErrors && err.FailingRequires.ErrorMessage != null)
+ {
+ ReportBplError(err.FailingRequires, err.FailingRequires.ErrorMessage, true, false);
+ }
+ else if (QKeyValue.FindBoolAttribute(err.FailingRequires.Attributes, "barrier_divergence"))
+ {
+ ReportBplError(err.FailingCall, "Barrier Divergence Error: \nThe following barrier is reached by non-uniform control flow:", true, true);
+ }
+ else
+ {
+ ReportBplError(err.FailingCall, "Requires Error: A precondition for this call might not hold.", true, true);
+ ReportBplError(err.FailingRequires, "Related location: This is the precondition that might not hold.", false, true);
+ }
+ if (CommandLineOptions.Clo.XmlSink != null)
+ {
+ CommandLineOptions.Clo.XmlSink.WriteError("precondition violation", err.FailingCall.tok, err.FailingRequires.tok, error.Trace);
+ }
+ }
+ else if (error is ReturnCounterexample)
+ {
+ ReturnCounterexample err = (ReturnCounterexample)error;
+ if (!CommandLineOptions.Clo.ForceBplErrors && err.FailingEnsures.ErrorMessage != null)
+ {
+ ReportBplError(err.FailingEnsures, err.FailingEnsures.ErrorMessage, true, false);
+ }
+ else
+ {
+ ReportBplError(err.FailingReturn, "Ensures Error: A postcondition might not hold on this return path.", true, true);
+ ReportBplError(err.FailingEnsures, "Related location: This is the postcondition that might not hold.", false, true);
+ }
+ if (CommandLineOptions.Clo.XmlSink != null)
+ {
+ CommandLineOptions.Clo.XmlSink.WriteError("postcondition violation", err.FailingReturn.tok, err.FailingEnsures.tok, error.Trace);
+ }
+ }
+ else // error is AssertCounterexample
+ {
+ AssertCounterexample err = (AssertCounterexample)error;
+ if (err.FailingAssert is LoopInitAssertCmd)
+ {
+ ReportBplError(err.FailingAssert, "Invariant Error: This loop invariant might not hold on entry.", true, true);
+ if (CommandLineOptions.Clo.XmlSink != null)
+ {
+ CommandLineOptions.Clo.XmlSink.WriteError("loop invariant entry violation", err.FailingAssert.tok, null, error.Trace);
+ }
+ }
+ else if (err.FailingAssert is LoopInvMaintainedAssertCmd)
+ {
+ // this assertion is a loop invariant which is not maintained
+ ReportBplError(err.FailingAssert, "Invariant Error: This loop invariant might not be maintained by the loop.", true, true);
+ if (CommandLineOptions.Clo.XmlSink != null)
+ {
+ CommandLineOptions.Clo.XmlSink.WriteError("loop invariant maintenance violation", err.FailingAssert.tok, null, error.Trace);
+ }
+ }
+ else
+ {
+ if (!CommandLineOptions.Clo.ForceBplErrors && err.FailingAssert.ErrorMessage != null)
+ {
+ ReportBplError(err.FailingAssert, err.FailingAssert.ErrorMessage, true, false);
+ }
+ else if (err.FailingAssert.ErrorData is string)
+ {
+ ReportBplError(err.FailingAssert, (string)err.FailingAssert.ErrorData, true, true);
+ }
+ else if (QKeyValue.FindBoolAttribute(err.FailingAssert.Attributes, "write_read_race"))
+ {
+ err.FailingAssert.Attributes = extractSourcelocAttrs(err.Trace);
+ ReportBplError(err.FailingAssert, "Race Error: Write-read race caused by statement at:", true, true);
+ }
+ else if (QKeyValue.FindBoolAttribute(err.FailingAssert.Attributes, "read_write_race"))
+ {
+ err.FailingAssert.Attributes = extractSourcelocAttrs(err.Trace);
+ ReportBplError(err.FailingAssert, "Race Error: Read-write race caused by statement at:", true, true);
+ }
+ else if (QKeyValue.FindBoolAttribute(err.FailingAssert.Attributes, "write_write_race"))
+ {
+ err.FailingAssert.Attributes = extractSourcelocAttrs(err.Trace);
+ ReportBplError(err.FailingAssert, "Race Error: Write-write race caused by statement at:", true, true);
+ }
+ else
+ {
+ ReportBplError(err.FailingAssert, "Assertion Error: This assertion might not hold.", true, true);
+ }
+ if (CommandLineOptions.Clo.XmlSink != null)
+ {
+ CommandLineOptions.Clo.XmlSink.WriteError("assertion violation", err.FailingAssert.tok, null, error.Trace);
+ }
+ }
+ }
+ if (CommandLineOptions.Clo.EnhancedErrorMessages == 1)
+ {
+ foreach (string info in error.relatedInformation)
+ {
+ Contract.Assert(info != null);
+ Console.WriteLine(" " + info);
+ }
+ }
+ if (CommandLineOptions.Clo.ErrorTrace > 0)
+ {
+ Console.WriteLine("Execution trace:");
+ error.Print(4);
+ }
+ if (CommandLineOptions.Clo.ModelViewFile != null)
+ {
+ error.PrintModel();
+ }
+ errorCount++;
+ }
+ //}
+ Inform(String.Format("{0}error{1}", timeIndication, errors.Count == 1 ? "" : "s"));
+ }
+ break;
+ }
+ }
+
+ /// <summary>
+ /// Given a resolved and type checked Boogie program, infers invariants for the program
+ /// and then attempts to verify it. Returns:
+ /// - Done if command line specified no verification
+ /// - FatalError if a fatal error occurred, in which case an error has been printed to console
+ /// - VerificationCompleted if inference and verification completed, in which the out
+ /// parameters contain meaningful values
+ /// </summary>
+ static PipelineOutcome InferAndVerify(Program program,
+ out int errorCount, out int verified, out int inconclusives, out int timeOuts, out int outOfMemories)
+ {
+ Contract.Requires(program != null);
+ Contract.Ensures(0 <= Contract.ValueAtReturn(out inconclusives) && 0 <= Contract.ValueAtReturn(out timeOuts));
+
+ errorCount = verified = inconclusives = timeOuts = outOfMemories = 0;
+
+ // ---------- Infer invariants --------------------------------------------------------
+
+ // Abstract interpretation -> Always use (at least) intervals, if not specified otherwise (e.g. with the "/noinfer" switch)
+ if (CommandLineOptions.Clo.Ai.J_Intervals || CommandLineOptions.Clo.Ai.J_Trivial)
+ {
+ Microsoft.Boogie.AbstractInterpretation.NativeAbstractInterpretation.RunAbstractInterpretation(program);
+ }
+ else
+ {
+ Microsoft.Boogie.AbstractInterpretation.AbstractInterpretation.RunAbstractInterpretation(program);
+ }
+
+ if (CommandLineOptions.Clo.LoopUnrollCount != -1)
+ {
+ program.UnrollLoops(CommandLineOptions.Clo.LoopUnrollCount);
+ }
+
+ if (CommandLineOptions.Clo.DoPredication && CommandLineOptions.Clo.StratifiedInlining > 0)
+ {
+ BlockPredicator.Predicate(program, false, false);
+ if (CommandLineOptions.Clo.PrintInstrumented)
+ {
+ using (TokenTextWriter writer = new TokenTextWriter(Console.Out))
+ {
+ program.Emit(writer);
+ }
+ }
+ }
+
+ Dictionary<string, Dictionary<string, Block>> extractLoopMappingInfo = null;
+ if (CommandLineOptions.Clo.ExtractLoops)
+ {
+ extractLoopMappingInfo = program.ExtractLoops();
+ }
+
+ if (CommandLineOptions.Clo.PrintInstrumented)
+ {
+ program.Emit(new TokenTextWriter(Console.Out));
+ }
+
+ if (CommandLineOptions.Clo.ExpandLambdas)
+ {
+ LambdaHelper.ExpandLambdas(program);
+ //PrintBplFile ("-", program, true);
+ }
+
+ // ---------- Verify ------------------------------------------------------------
+
+ if (!CommandLineOptions.Clo.Verify)
+ {
+ return PipelineOutcome.Done;
+ }
+
+ #region Run Houdini and verify
+ if (CommandLineOptions.Clo.ContractInfer)
+ {
+ Houdini.Houdini houdini = new Houdini.Houdini(program);
+ Houdini.HoudiniOutcome outcome = houdini.PerformHoudiniInference();
+ if (CommandLineOptions.Clo.PrintAssignment)
+ {
+ Console.WriteLine("Assignment computed by Houdini:");
+ foreach (var x in outcome.assignment)
+ {
+ Console.WriteLine(x.Key + " = " + x.Value);
+ }
+ }
+ if (CommandLineOptions.Clo.Trace)
+ {
+ int numTrueAssigns = 0;
+ foreach (var x in outcome.assignment)
+ {
+ if (x.Value)
+ numTrueAssigns++;
+ }
+ Console.WriteLine("Number of true assignments = " + numTrueAssigns);
+ Console.WriteLine("Number of false assignments = " + (outcome.assignment.Count - numTrueAssigns));
+ Console.WriteLine("Prover time = " + Houdini.HoudiniSession.proverTime);
+ Console.WriteLine("Unsat core prover time = " + Houdini.HoudiniSession.unsatCoreProverTime);
+ Console.WriteLine("Number of prover queries = " + Houdini.HoudiniSession.numProverQueries);
+ Console.WriteLine("Number of unsat core prover queries = " + Houdini.HoudiniSession.numUnsatCoreProverQueries);
+ Console.WriteLine("Number of unsat core prunings = " + Houdini.HoudiniSession.numUnsatCorePrunings);
+ }
+
+ foreach (Houdini.VCGenOutcome x in outcome.implementationOutcomes.Values)
+ {
+ ProcessOutcome(x.outcome, x.errors, "", ref errorCount, ref verified, ref inconclusives, ref timeOuts, ref outOfMemories);
+ }
+ //errorCount = outcome.ErrorCount;
+ //verified = outcome.Verified;
+ //inconclusives = outcome.Inconclusives;
+ //timeOuts = outcome.TimeOuts;
+ //outOfMemories = 0;
+ return PipelineOutcome.Done;
+ }
+ #endregion
+
+ #region Verify each implementation
+
+ ConditionGeneration vcgen = null;
+ try
+ {
+ if (CommandLineOptions.Clo.vcVariety == CommandLineOptions.VCVariety.Doomed)
+ {
+ vcgen = new DCGen(program, CommandLineOptions.Clo.SimplifyLogFilePath, CommandLineOptions.Clo.SimplifyLogFileAppend);
+ }
+ else if (CommandLineOptions.Clo.StratifiedInlining > 0)
+ {
+ vcgen = new StratifiedVCGen(program, CommandLineOptions.Clo.SimplifyLogFilePath, CommandLineOptions.Clo.SimplifyLogFileAppend);
+ }
+ else
+ {
+ vcgen = new VCGen(program, CommandLineOptions.Clo.SimplifyLogFilePath, CommandLineOptions.Clo.SimplifyLogFileAppend);
+ }
+ }
+ catch (ProverException e)
+ {
+ ErrorWriteLine("Fatal Error: ProverException: {0}", e);
+ return PipelineOutcome.FatalError;
+ }
+
+ // operate on a stable copy, in case it gets updated while we're running
+ var decls = program.TopLevelDeclarations.ToArray();
+ foreach (Declaration decl in decls)
+ {
+ Contract.Assert(decl != null);
+ int prevAssertionCount = vcgen.CumulativeAssertionCount;
+ Implementation impl = decl as Implementation;
+ if (impl != null && CommandLineOptions.Clo.UserWantsToCheckRoutine(cce.NonNull(impl.Name)) && !impl.SkipVerification)
+ {
+ List<Counterexample/*!*/>/*?*/ errors;
+
+ DateTime start = new DateTime(); // to please compiler's definite assignment rules
+ if (CommandLineOptions.Clo.Trace || CommandLineOptions.Clo.XmlSink != null)
+ {
+ start = DateTime.UtcNow;
+ if (CommandLineOptions.Clo.Trace)
+ {
+ Console.WriteLine();
+ Console.WriteLine("Verifying {0} ...", impl.Name);
+ }
+ if (CommandLineOptions.Clo.XmlSink != null)
+ {
+ CommandLineOptions.Clo.XmlSink.WriteStartMethod(impl.Name, start);
+ }
+ }
+
+ VCGen.Outcome outcome;
+ try
+ {
+ if (CommandLineOptions.Clo.inferLeastForUnsat != null)
+ {
+ var svcgen = vcgen as VC.StratifiedVCGen;
+ Contract.Assert(svcgen != null);
+ var ss = new HashSet<string>();
+ foreach (var tdecl in program.TopLevelDeclarations)
+ {
+ var c = tdecl as Constant;
+ if (c == null || !c.Name.StartsWith(CommandLineOptions.Clo.inferLeastForUnsat)) continue;
+ ss.Add(c.Name);
+ }
+ outcome = svcgen.FindLeastToVerify(impl, ref ss);
+ errors = new List<Counterexample>();
+ Console.Write("Result: ");
+ foreach (var s in ss)
+ {
+ Console.Write("{0} ", s);
+ }
+ Console.WriteLine();
+ }
+ else
+ {
+ outcome = vcgen.VerifyImplementation(impl, out errors);
+ if (CommandLineOptions.Clo.ExtractLoops && vcgen is VCGen && errors != null)
+ {
+ for (int i = 0; i < errors.Count; i++)
+ {
+ errors[i] = (vcgen as VCGen).extractLoopTrace(errors[i], impl.Name, program, extractLoopMappingInfo);
+ }
+ }
+ }
+ }
+ catch (VCGenException e)
+ {
+ ReportBplError(impl, String.Format("Error BP5010: {0} Encountered in implementation {1}.", e.Message, impl.Name), true, true);
+ errors = null;
+ outcome = VCGen.Outcome.Inconclusive;
+ }
+ catch (UnexpectedProverOutputException upo)
+ {
+ AdvisoryWriteLine("Advisory: {0} SKIPPED because of internal error: unexpected prover output: {1}", impl.Name, upo.Message);
+ errors = null;
+ outcome = VCGen.Outcome.Inconclusive;
+ }
+
+ string timeIndication = "";
+ DateTime end = DateTime.UtcNow;
+ TimeSpan elapsed = end - start;
+ if (CommandLineOptions.Clo.Trace || CommandLineOptions.Clo.XmlSink != null)
+ {
+ if (CommandLineOptions.Clo.Trace)
+ {
+ int poCount = vcgen.CumulativeAssertionCount - prevAssertionCount;
+ timeIndication = string.Format(" [{0} s, {1} proof obligation{2}] ", elapsed.ToString("%s\\.fff"), poCount, poCount == 1 ? "" : "s");
+ }
+ }
+
+ ProcessOutcome(outcome, errors, timeIndication, ref errorCount, ref verified, ref inconclusives, ref timeOuts, ref outOfMemories);
+
+ if (CommandLineOptions.Clo.XmlSink != null)
+ {
+ CommandLineOptions.Clo.XmlSink.WriteEndMethod(outcome.ToString().ToLowerInvariant(), end, elapsed);
+ }
+ if (outcome == VCGen.Outcome.Errors || CommandLineOptions.Clo.Trace)
+ {
+ Console.Out.Flush();
+ }
+ }
+ }
+
+ vcgen.Close();
+ cce.NonNull(CommandLineOptions.Clo.TheProverFactory).Close();
+
+
+ #endregion
+
+ return PipelineOutcome.VerificationCompleted;
+ }
+ }
+}
diff --git a/Source/GPUVerifyBoogieDriver/GPUVerifyBoogieDriver.csproj b/Source/GPUVerifyBoogieDriver/GPUVerifyBoogieDriver.csproj new file mode 100644 index 00000000..c4ab1b6f --- /dev/null +++ b/Source/GPUVerifyBoogieDriver/GPUVerifyBoogieDriver.csproj @@ -0,0 +1,91 @@ +<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+ <PropertyGroup>
+ <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+ <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+ <ProductVersion>8.0.30703</ProductVersion>
+ <SchemaVersion>2.0</SchemaVersion>
+ <ProjectGuid>{FD2A2C67-1BD6-4A1A-B65B-B057267E24A3}</ProjectGuid>
+ <OutputType>Exe</OutputType>
+ <AppDesignerFolder>Properties</AppDesignerFolder>
+ <RootNamespace>GPUVerifyBoogieDriver</RootNamespace>
+ <AssemblyName>GPUVerifyBoogieDriver</AssemblyName>
+ <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+ <TargetFrameworkProfile>Client</TargetFrameworkProfile>
+ <FileAlignment>512</FileAlignment>
+ </PropertyGroup>
+ <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
+ <PlatformTarget>x86</PlatformTarget>
+ <DebugSymbols>true</DebugSymbols>
+ <DebugType>full</DebugType>
+ <Optimize>false</Optimize>
+ <OutputPath>..\..\Binaries\</OutputPath>
+ <DefineConstants>DEBUG;TRACE</DefineConstants>
+ <ErrorReport>prompt</ErrorReport>
+ <WarningLevel>4</WarningLevel>
+ </PropertyGroup>
+ <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
+ <PlatformTarget>x86</PlatformTarget>
+ <DebugType>pdbonly</DebugType>
+ <Optimize>true</Optimize>
+ <OutputPath>bin\Release\</OutputPath>
+ <DefineConstants>TRACE</DefineConstants>
+ <ErrorReport>prompt</ErrorReport>
+ <WarningLevel>4</WarningLevel>
+ </PropertyGroup>
+ <ItemGroup>
+ <Reference Include="System" />
+ <Reference Include="System.Core" />
+ <Reference Include="System.Xml.Linq" />
+ <Reference Include="System.Data.DataSetExtensions" />
+ <Reference Include="Microsoft.CSharp" />
+ <Reference Include="System.Data" />
+ <Reference Include="System.Xml" />
+ </ItemGroup>
+ <ItemGroup>
+ <Compile Include="GPUVerifyBoogieDriver.cs" />
+ <Compile Include="Properties\AssemblyInfo.cs" />
+ </ItemGroup>
+ <ItemGroup>
+ <ProjectReference Include="..\AbsInt\AbsInt.csproj">
+ <Project>{0EFA3E43-690B-48DC-A72C-384A3EA7F31F}</Project>
+ <Name>AbsInt</Name>
+ </ProjectReference>
+ <ProjectReference Include="..\AIFramework\AIFramework.csproj">
+ <Project>{39B0658D-C955-41C5-9A43-48C97A1EF5FD}</Project>
+ <Name>AIFramework</Name>
+ </ProjectReference>
+ <ProjectReference Include="..\CodeContractsExtender\CodeContractsExtender.csproj">
+ <Project>{ACCC0156-0921-43ED-8F67-AD8BDC8CDE31}</Project>
+ <Name>CodeContractsExtender</Name>
+ </ProjectReference>
+ <ProjectReference Include="..\Core\Core.csproj">
+ <Project>{B230A69C-C466-4065-B9C1-84D80E76D802}</Project>
+ <Name>Core</Name>
+ </ProjectReference>
+ <ProjectReference Include="..\Graph\Graph.csproj">
+ <Project>{69A2B0B8-BCAC-4101-AE7A-556FCC58C06E}</Project>
+ <Name>Graph</Name>
+ </ProjectReference>
+ <ProjectReference Include="..\Houdini\Houdini.csproj">
+ <Project>{CF41E903-78EB-43BA-A355-E5FEB5ECECD4}</Project>
+ <Name>Houdini</Name>
+ </ProjectReference>
+ <ProjectReference Include="..\ParserHelper\ParserHelper.csproj">
+ <Project>{FCD3AC7F-9DFD-46C8-AB1E-09F0B0F16DC5}</Project>
+ <Name>ParserHelper</Name>
+ </ProjectReference>
+ <ProjectReference Include="..\VCGeneration\VCGeneration.csproj">
+ <Project>{E1F10180-C7B9-4147-B51F-FA1B701966DC}</Project>
+ <Name>VCGeneration</Name>
+ </ProjectReference>
+ </ItemGroup>
+ <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+ <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
+ Other similar extension points exist, see Microsoft.Common.targets.
+ <Target Name="BeforeBuild">
+ </Target>
+ <Target Name="AfterBuild">
+ </Target>
+ -->
+</Project>
\ No newline at end of file diff --git a/Source/GPUVerifyBoogieDriver/Properties/AssemblyInfo.cs b/Source/GPUVerifyBoogieDriver/Properties/AssemblyInfo.cs new file mode 100644 index 00000000..ef014dd1 --- /dev/null +++ b/Source/GPUVerifyBoogieDriver/Properties/AssemblyInfo.cs @@ -0,0 +1,36 @@ +using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("GPUVerifyBoogieDriver")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("GPUVerifyBoogieDriver")]
+[assembly: AssemblyCopyright("Copyright © 2012")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components. If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("d7726f3b-aa69-4a39-a821-9503db2ab23b")]
+
+// Version information for an assembly consists of the following four values:
+//
+// Major Version
+// Minor Version
+// Build Number
+// Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
|