public static VC.ConditionGeneration.Outcome MyVerifyImplementation(Implementation impl, Program prog)
{
VC.ConditionGeneration vcgen = BoogieVerify.InitializeVC(prog);
List <Counterexample> errs;
var outcome = vcgen.VerifyImplementation(impl, out errs);
vcgen.Close();
return(outcome);
}
public static VerificationResult VerifyImplementation(VC.ConditionGeneration vcgen, Implementation impl, Program prog, out SDiffCounterexamples cex, out List <Model> errModelList)
{
VerifyImplCleanup vic;
vic = new VerifyImplCleanup();
vic.Visit(prog);
cex = null;
errModelList = null;
if (impl == null)
{
Log.Out(Log.Urgent, "VerifyImplementation saw null implementation");
return(VerificationResult.Unknown);
}
//Log.Out(Log.Verifier, "Verifying implementation " + impl.Name);
List <Counterexample> errors;
List <Model> errorsModel;
VerificationResult sdoutcome = VerificationResult.Unknown;
VC.VCGen.Outcome outcome;
//Log.Out(Log.Verifier, "Saving implementation before Boogie preprocessing");
var duper = new Duplicator();
var imperativeBlocks = new Dictionary <string, Block>();
foreach (Block b in impl.Blocks)
{
//new: to avoid repeated blocks (MYSTERY)
if (!imperativeBlocks.ContainsKey(b.Label))
{
imperativeBlocks.Add(b.Label, duper.VisitBlock(b));
}
}
try
{
var start = DateTime.Now;
//outcome = vcgen.VerifyImplementation(impl, prog, out errors);
outcome = vcgen.VerifyImplementation(impl, /*prog,*/ out errors, out errorsModel);
errModelList = errorsModel;
var end = DateTime.Now;
TimeSpan elapsed = end - start;
Console.WriteLine(string.Format(" [{0} s] ", elapsed.TotalSeconds));
}
catch (VC.VCGenException e)
{
Log.Out(Log.Error, "Error BP5010: {0} Encountered in implementation {1}: " + e.Message);
errors = null;
outcome = VC.VCGen.Outcome.Inconclusive;
}
catch (UnexpectedProverOutputException upo)
{
Log.Out(Log.Error, "Advisory: {0} SKIPPED because of internal error: unexpected prover output: {1}" + upo.Message);
errors = null;
outcome = VC.VCGen.Outcome.Inconclusive;
}
catch (Exception e)
{
Log.Out(Log.Error, "Unknown error somewhere in verification: ");
Log.Out(Log.Error, e.ToString());
return(VerificationResult.Unknown);
}
switch (outcome)
{
case VC.VCGen.Outcome.Correct:
sdoutcome = VerificationResult.Verified;
break;
case VC.VCGen.Outcome.Errors:
sdoutcome = VerificationResult.Error;
break;
case VC.VCGen.Outcome.Inconclusive:
sdoutcome = VerificationResult.Inconclusive;
break;
case VC.VCGen.Outcome.OutOfMemory:
sdoutcome = VerificationResult.OutOfMemory;
break;
case VC.VCGen.Outcome.TimedOut:
sdoutcome = VerificationResult.TimeOut;
break;
}
Log.Out(Log.Normal, outcome.ToString());
var eqVarName = "";
if (errors != null && errors.Count() == 1)
{
//eqVarName = errors[0];
}
Log.Out(Log.Verifier, (errors == null ? 0 : errors.Count) + " counterexamples...");
if (errors != null)
{
cex = new SDiffCounterexamples();
for (int i = 0; i < errors.Count; i++)
{
if (Options.EnumerateAllPaths)
{
//just remove any time for this option
cex.Add(new SDiffCounterexample(errors[i], null, impl));
continue;
}
//reconstruct trace in terms of imperative blocks
var trace = ReconstructImperativeTrace(errors[i].Trace, imperativeBlocks);
if (SymEx.TraceValidator.Validate(trace))
{
Log.Out(Log.Cex, "Trace " + "[" + i + "]:");
Log.Out(Log.Cex, "Validating...");
Log.Out(Log.Cex, "Trace is not complete! Printing..");
SDiff.SymEx.CexDumper.PrintTrace(trace);
continue;
}
else
{
//Log.Out(Log.Cex, "Trace OK");
if (Options.DumpValidTraces)
{
SDiff.SymEx.CexDumper.PrintTrace(trace);
}
}
cex.Add(new SDiffCounterexample(errors[i], trace, impl));
}
}
return(sdoutcome);
}
