public bool IsValidPath(GeneNode automata, List <GeneLink> booleanNetwok, Dictionary <string, List <int> > availableFunctions = null)
{
lock (locker)
{
var tempAutomata = automata;
// new GeneNode()
//{
// NodeName = "Start",
// CurrentCondition = new Condition(),
// Transitions = new List<GeneTransition>()
// {
// new GeneTransition()
// {
// Node = automata
// }
// }
//};
var letters = new List <string>();
int z = 0;
var depth = tempAutomata.NodeLength;
tempAutomata.GetAllConditionLetters(letters);
letters = letters.SelectMany(l => Enumerable.Range(0, depth).ToList().Select(n => Formater.FormatParameter(l, n))).ToList();
logger.Info(tempAutomata.NodeLength + 1);
Model.NUMBER_OF_EVENT = tempAutomata.NodeLength + 2;
Model.MAX_NUMBER_EVENT_PARAMETERS = 0;
BDDEncoder encoder = new BDDEncoder();
letters.Distinct().ToList().ForEach(l => encoder.model.AddLocalVar(l, 0, 1));
logger.Info(string.Join(",", letters));
SymbolicLTS lts = new SymbolicLTS();
List <State> states = new List <State>();
var state0 = lts.AddState();
states.Add(state0);
lts.InitialState = states[0];
var state1 = lts.AddState();
states.Add(state1);
//var goal2 = CreateExpressionBasedOnAutomata(tempAutomata);
var dictValues = BDDLogicHelper.CreateDictBasedOnAutomata(tempAutomata);
Expression seq = null;
/*CreateExpressionsFromBooleanNetwork(booleanNetwok,
* availableFunctions, depth, Mode.Assignment, dictValues);*/
if (dictValues.Any())
{
dictValues.ToList().ForEach(f =>
{
Expression curr = new Assignment(f.Key, new BoolConstant(f.Value));
seq = seq == null ? curr : new Sequence(seq, curr);
});
}
//seq = new Sequence(seq, goal2);
// //
logger.Info("Assignments: " + seq);
var trans1 =
new Transition(new Event("a0"), null, seq,
states[0], states[1]);
lts.Transitions.Add(trans1);
logger.Info(lts);
AutomataBDD systemBDD = lts.Encode(encoder);
systemBDD.PrintTransition();
CUDDNode initDD = CUDD.Function.Or(
systemBDD.initExpression.TranslateBoolExpToBDD(encoder.model).GuardDDs);
bool reach1 = true;
var path = new List <CUDDNode>();
var geneTransition = tempAutomata;
InitInitialState(geneTransition, systemBDD, letters);
var goal = SetGoalsBasedOnAutomata(geneTransition);
var goal3 = CreateExpressionsFromBooleanNetwork(booleanNetwok,
availableFunctions, depth, Mode.Equal);
goal = new PrimitiveApplication(PrimitiveApplication.AND, goal, goal3);
logger.Info("Goal: " + goal);
path = IsExistPath(goal, encoder, path, initDD, systemBDD, letters, ref reach1);
path.Clear();
encoder.model.Close();
return(reach1);
}
}
public void Test1Test()
{
var sb = new StringBuilder();
string varX = "x";
string varY = "y";
//Set number of action names, 2 for a, b
Model.NUMBER_OF_EVENT = 3;
Model.MAX_NUMBER_EVENT_PARAMETERS = 0;
BDDEncoder encoder = new BDDEncoder();
encoder.model.AddGlobalVar(varX, 0, 10);
encoder.model.AddGlobalVar(varY, 0, 10);
SymbolicLTS lts = new SymbolicLTS();
State state1 = lts.AddState();
State state2 = lts.AddState();
State state3 = lts.AddState();
State state4 = lts.AddState();
lts.InitialState = state1;
var primitiveApplication1 = new Assignment(varX, new PrimitiveApplication(PrimitiveApplication.PLUS,
new Variable(varX),
new IntConstant(1)));
var primitiveApplication2 = new Assignment(varY, new PrimitiveApplication(PrimitiveApplication.PLUS,
new Variable(varY),
new IntConstant(4)));
/*
*
* for (int i = 0; i < exps.Count; i++)
* {
* //Update eventParameterVariables[i] = exps[i]
* //Don't need to update exps because later after synchronization, not updated variable keeps the same value
* update = new Sequence(update, new Assignment(model.eventParameterVariables[i], exps[i]));
* }
*/
var primitiveApplication = new Sequence(primitiveApplication1,
primitiveApplication2);
/*PrimitiveApplication.CombineProgramBlock(
* primitiveApplication1,
* primitiveApplication2);*/
logger.Info(primitiveApplication);
Transition trans1 = new Transition(new Event("a"), null,
primitiveApplication,
state1,
state2);
Expression assignment =
new Assignment(varX, new PrimitiveApplication(PrimitiveApplication.PLUS,
new Variable(varX),
new IntConstant(2)));
logger.Info("Assignments: " + assignment);
var secAssignment =
new Assignment(varY,
new PrimitiveApplication(PrimitiveApplication.PLUS,
new Variable(varY), new WildConstant()));
Transition trans2 = new Transition(new Event("b"), null,
primitiveApplication,
state2,
state3);
Transition trans3 = new Transition(new Event("c"), null,
primitiveApplication,
state3,
state4);
lts.AddTransition(trans1);
lts.AddTransition(trans2);
lts.AddTransition(trans3);
AutomataBDD systemBDD = lts.Encode(encoder);
//Variable x is initialised to 1
systemBDD.initExpression = new PrimitiveApplication(PrimitiveApplication.AND,
systemBDD.initExpression,
new PrimitiveApplication(PrimitiveApplication.EQUAL,
new Variable(varX), new IntConstant(1)));
systemBDD.initExpression = new PrimitiveApplication(PrimitiveApplication.AND,
systemBDD.initExpression,
new PrimitiveApplication(PrimitiveApplication.EQUAL,
new Variable(varY), new IntConstant(1)));
CUDDNode initDD = CUDD.Function.Or(systemBDD.initExpression.TranslateBoolExpToBDD(encoder.model).GuardDDs);
logger.Info("init: " + systemBDD.initExpression);
var u = 1;
for (; u < 2; u++)
{
logger.Info($"U is {u}");
//Define 2 goals
Expression goal1 = new PrimitiveApplication(PrimitiveApplication.EQUAL,
new Variable(varX), new IntConstant(3));
goal1 = new PrimitiveApplication(PrimitiveApplication.AND, goal1, new PrimitiveApplication(PrimitiveApplication.EQUAL, new Variable(varY), new IntConstant(9)));
//Encode 2 goals to BDD
CUDDNode goal1DD = CUDD.Function.Or(goal1.TranslateBoolExpToBDD(encoder.model).GuardDDs);
logger.Info("Goal: " + goal1);
List <CUDDNode> path = new List <CUDDNode>();
bool reach1 = encoder.model.PathForward(initDD, goal1DD, new List <List <CUDDNode> >()
{
systemBDD.transitionBDD
}, path, true);
if (reach1)
{
sb.AppendLine("goal1 is reachable");
foreach (var cuddNode in path)
{
encoder.model.PrintAllVariableValue(cuddNode);
logger.Info("after");
CUDD.Print.PrintMinterm(cuddNode);
// CUDD.Print.PrintBDDTree(path);
int valueOfX = encoder.model.GetRowVarValue(cuddNode, varX);
sb.AppendLine(varX + " = " + valueOfX);
int valueOfY = encoder.model.GetRowVarValue(cuddNode, varY);
sb.AppendLine(varY + " = " + valueOfY);
}
}
else
{
sb.AppendLine("goal1 is unreachable");
}
path.Clear();
}
/*
* bool reach2 = encoder.model.PathForward(initDD, goal2DD, new List<List<CUDDNode>>() { systemBDD.transitionBDD }, path, true);
* if (reach2)
* {
* sb.AppendLine("goal2 is reachable");
* foreach (var cuddNode in path)
* {
* int valueOfX = encoder.model.GetRowVarValue(cuddNode, varX);
* sb.AppendLine(varX + " = " + valueOfX);
* }
* }
* else
* {
* sb.AppendLine("goal2 is unreachable");
* }
*/
logger.Info(sb);
encoder.model.Close();
}