context Manager inv NbManager: Manager.allInstances ? size <= 3 and Manager.allInstances ? size >0 context Manager inv NbManagerController: Manager.allInstances ? forAll(mg:Manager | ((mg.controller ? size =1) and (mg.coordinator ? size <=5) and (mg.invistigator ? size <=5))) context Controller inv NbControllerManager: Controller.allInstances ? forAll(ct:Controller | ((ct.manager ? size =1))) context Coordinator inv NbCoorrdinatorManager: Coordinator.allInstances ? forAll(cd:Coordinator | ((cd.manager ? size =1))) context Invistigator inv NbInvistigatorManager: Invistigator.allInstances ? forAll(iv:Invistigator | ((iv.manager ? size =1)))