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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics.Contracts;
using System.IO;
using System.Text.RegularExpressions;
namespace Microsoft.Boogie.SMTLib
{
class CVC4
{
static string _proverPath;
static string CodebaseString()
{
Contract.Ensures(Contract.Result<string>() != null);
return Path.GetDirectoryName(cce.NonNull(System.Reflection.Assembly.GetExecutingAssembly().Location));
}
public static string ExecutablePath()
{
if (_proverPath == null)
FindExecutable();
return _proverPath;
}
static void FindExecutable()
// throws ProverException, System.IO.FileNotFoundException;
{
Contract.Ensures(_proverPath != null);
// Command line option 'cvc4exe' always has priority if set
if (CommandLineOptions.Clo.CVC4ExecutablePath != null)
{
_proverPath = CommandLineOptions.Clo.CVC4ExecutablePath;
if (!File.Exists(_proverPath))
{
throw new ProverException("Cannot find prover specified with cvc4exe: " + _proverPath);
}
if (CommandLineOptions.Clo.Trace)
{
Console.WriteLine("[TRACE] Using prover: " + _proverPath);
}
return;
}
var proverExe = "cvc4.exe";
if (_proverPath == null)
{
// Initialize '_proverPath'
_proverPath = Path.Combine(CodebaseString(), proverExe);
string firstTry = _proverPath;
if (File.Exists(firstTry))
{
if (CommandLineOptions.Clo.Trace)
{
Console.WriteLine("[TRACE] Using prover: " + _proverPath);
}
return;
}
else
{
throw new ProverException("Cannot find executable: " + firstTry);
}
}
}
}
}
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