public IQueryResult ComputeSatisfiability(Query query)
{
// FIXME: Optimise the case where only the query expression has changed
Printer.ClearDeclarations();
foreach (var constraint in query.Constraints.Constraints)
{
Printer.AddDeclarations(constraint);
}
Printer.AddDeclarations(query.QueryExpr);
Printer.PrintCommentLine("Query " + UseCounter + " Begin");
PrintDeclarationsAndConstraints(query.Constraints);
Printer.PrintCommentLine("Query Expr:" + query.QueryExpr.Origin.ToString());
Printer.PrintAssert(query.QueryExpr.Condition);
Printer.PrintCheckSat();
var result = UnderlyingImpl.ComputeSatisfiability(query);
Printer.PrintCommentLine("Result : " + result.Satisfiability);
Printer.PrintExit();
Printer.PrintCommentLine("End of Query " + (UseCounter));
++UseCounter;
return(result);
}
protected virtual void OutputHandler(object sendingProcess, DataReceivedEventArgs stdoutLine)
{
// The event handler might get called more than once.
// In fact for Z3 we get called twice, first with the result
// and then again with a blank line (why?)
if (String.IsNullOrEmpty(stdoutLine.Data) || ReceivedResult)
{
return;
}
switch (stdoutLine.Data)
{
case "sat":
SolverResult = Result.SAT;
ReceivedResult = true;
break;
case "unsat":
SolverResult = Result.UNSAT;
ReceivedResult = true;
break;
case "unknown":
SolverResult = Result.UNKNOWN;
ReceivedResult = true;
++InternalStatistics.SolverRepliedUnknownCount;
break;
default:
SolverResult = Result.UNKNOWN;
Console.Error.WriteLine("ERROR: Solver output \"" + stdoutLine.Data + "\" not parsed correctly");
SolverErrorMsg = SolverErrorMsg + stdoutLine.Data;
ReceivedError = true;
if (!PersistentProcess)
{
return;
}
break;
}
if (PersistentProcess)
{
ReceivedResultEvent.Signal();
}
else
{
Printer.PrintExit();
}
}
