private SingleTestResult runTestIteration(int seed, int numCities, MethodInfo implementation,
BackgroundWorker worker, TestSuiteProgressData progressData)
{
ProblemAndSolver ps = new ProblemAndSolver(seed, numCities);
ps.UpdateForm = false;
Stopwatch sw = new Stopwatch();
sw.Start();
implementation.Invoke(ps, new object[]{});
sw.Start();
return new SingleTestResult(ps.costOfBssf(), sw.ElapsedMilliseconds / 1000d);
}