$rootDir = $this->get('kernel')->getRootDir();
$adk_process = new Process(
  'php ../bin/console app:adkaction ' . $numcampaigns . ', ' . $timezone . ',' . $depdate);
$adk_process->setWorkingDirectory($rootDir);
$adk_process->setOptions(['suppress_errors' => false]);
$adk_process->setTimeout(null);
$adk_process->start();

while ($adk_process->isRunning()) {
      $currprogress = $adk_process->getIncrementalOutput();
       return $this->render('BackEnd/user.html.twig',[
              'form'=>$form->createView(),
              'currprogress' => $currprogress
              ]);
}