private static ResultCounter VerifyFiles(List <string> fileNames)
{
Contract.Requires(cce.NonNullElements(fileNames));
Program program = Utilities.IO.ParseBoogieProgram(fileNames, false);
if (program == null)
{
return(ResultCounter.GetNewCounterWithInputError());
}
KernelAnalyser.PipelineOutcome oc = KernelAnalyser.ResolveAndTypecheck(program, fileNames[fileNames.Count - 1]);
if (oc != KernelAnalyser.PipelineOutcome.ResolvedAndTypeChecked)
{
return(ResultCounter.GetNewCounterWithInputError());
}
KernelAnalyser.EliminateDeadVariables(program);
KernelAnalyser.Inline(program);
KernelAnalyser.CheckForQuantifiersAndSpecifyLogic(program);
CommandLineOptions.Clo.PrintUnstructured = 2;
if (CommandLineOptions.Clo.LoopUnrollCount != -1)
{
Debug.Assert(!CommandLineOptions.Clo.ContractInfer);
program.UnrollLoops(CommandLineOptions.Clo.LoopUnrollCount, CommandLineOptions.Clo.SoundLoopUnrolling);
}
return(VerifyProgram(program));
}
private static ResultCounter VerifyProgram(Program program)
{
var counters = default(ResultCounter);
ConditionGeneration vcgen = null;
try
{
vcgen = new VCGen(program, CommandLineOptions.Clo.SimplifyLogFilePath, CommandLineOptions.Clo.SimplifyLogFileAppend, new List <Checker>());
}
catch (ProverException e)
{
Utilities.IO.ErrorWriteLine("Fatal Error: ProverException: {0}", e);
return(ResultCounter.GetNewCounterWithInternalError());
}
// 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 = default(DateTime); // to please compiler's definite assignment rules
if (CommandLineOptions.Clo.Trace)
{
start = DateTime.UtcNow;
if (CommandLineOptions.Clo.Trace)
{
Console.WriteLine();
Console.WriteLine("Verifying {0} ...", impl.Name);
}
}
VCGen.Outcome outcome;
try
{
outcome = vcgen.VerifyImplementation(impl, out errors);
}
catch (VCGenException e)
{
Utilities.IO.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)
{
Utilities.IO.AdvisoryWriteLine("Advisory: {0} SKIPPED because of internal error: unexpected prover output: {1}", impl.Name, upo.Message);
errors = null;
outcome = VCGen.Outcome.Inconclusive;
}
string timeIndication = string.Empty;
DateTime end = DateTime.UtcNow;
TimeSpan elapsed = end - start;
if (CommandLineOptions.Clo.Trace)
{
int poCount = vcgen.CumulativeAssertionCount - prevAssertionCount;
timeIndication = string.Format(
" [{0:F3} s, {1} proof {2}] ",
elapsed.TotalSeconds,
poCount,
poCount == 1 ? "obligation" : "obligations");
}
KernelAnalyser.ProcessOutcome(program, impl.Name, outcome, errors, timeIndication, ref counters);
if (outcome == VCGen.Outcome.Errors || CommandLineOptions.Clo.Trace)
{
Console.Out.Flush();
}
}
}
vcgen.Close();
cce.NonNull(CommandLineOptions.Clo.TheProverFactory).Close();
Utilities.IO.WriteTrailer(counters);
return(counters);
}