/// <summary>
/// Given an Acl ruleset and a stragey, computes and finds any possible solutions.
/// </summary>
/// <param name="ruleSet">The Acl ruleset to verify.</param>
/// <param name="strategy">The Strategy representing the test invariant.</param>
/// <returns>A list of solution (if any) that satisfy the provided strategy.</returns>
public Task <IEnumerable <Packet> > FindSolutions(Acl ruleSet, Strategy strategy)
{
// Create Zen func and run input evaluation
Stopwatch sw = new Stopwatch();
ZenFunction <Packet, bool> func = Function <Packet, bool>(p => ruleSet.Allowed(p));
_logger.Write("Starting model evaluation");
_logger.Write($"Using the \"{strategy.Name}\" strategy");
sw.Start();
IEnumerable <Packet> solutions = func.FindAll(strategy.Invariant,
backend: ZenLib.ModelChecking.Backend.Z3)
.Take(_config.MaxReportedResults)
.ToList(); // Force evaluation
sw.Stop();
_logger.Write($"Model evaluation finished ({sw.ElapsedMilliseconds} msec)");
return(Task.FromResult(solutions));
}
