PhpCAS on Codeigniter

iam trying to use phpcas lib for codeigniter https://github.com/eliasdorneles/code-ig...as-library

but when iam trying to testing it on controller it stuck on success login view and its doesnt redirect back to my apps.
here is the log and the code

code.

Code:

$this->load->library('cas');
  $this->cas->force_auth();
  $user = $this->cas->user();
  echo "<pre>";
  print_r($this->cas);
  echo "</pre>";
  print_r($user);

log:
C0C1 .START phpCAS-1.1.3 ****************** [CAS.php:470]
C0C1 .=> phpCAS::client('2.0', 'sso.xxxx.com', 443, '/casadfs') [Cas.php:55]
C0C1 .| => CASClient::CASClient('2.0', false, 'sso.xxxx.com', 443, '/casadfs', true) [CAS.php:373]
C0C1 .| | Starting a new session [client.php:600]
C0C1 .| <= ''
C0C1 .<= ''
C0C1 .=> phpCAS:etNoCasServerValidation() [Cas.php:59]
C0C1 .<= ''
C0C1 .=> phpCAS::forceAuthentication() [Cas.php:74]
C0C1 .| => CASClient::forceAuthentication() [CAS.php:893]
C0C1 .| | => CASClient::isAuthenticated() [client.php:869]
C0C1 .| | | => CASClient::wasPreviouslyAuthenticated() [client.php:975]
C0C1 .| | | | no user found [client.php:1111]
C0C1 .| | | <= false
C0C1 .| | | no ticket found [client.php:1028]
C0C1 .| | <= false
C0C1 .| | => CASClient::redirectToCas(false) [client.php:878]
C0C1 .| | | => CASClient::getServerLoginURL(false, false) [client.php:1128]
C0C1 .| | | | => CASClient::getURL() [client.php:361]
C0C1 .| | | | | Final URI: http://localhost/sbis/trunk/src/app/login/testSSO2 [client.php:2686]
C0C1 .| | | | <= 'http://localhost/sbis/trunk/src/app/login/testSSO2'
C0C1 .| | | <= 'https://sso.xxxx.com/casadfs/login?service=http%3A%2F%2Flocalhost%2Fsbis%2Ftrunk%2Fsrc%2Fapp%2Flogin%2FtestSSO2'
C0C1 .| | | Redirect to : https://sso.xxxx.com/casadfs/login?service=http%3A%2F%2Flocalhost%2Fsbis%2Ftrunk%2Fsrc%2Fapp%2Flogin%2FtestSSO2
C0C1 .| | | exit()
C0C1 .| | | -
C0C1 .| | -
C0C1 .| -

iam stuck at this log the CAS didnt print my $user = $this->cas->user();