导致找不到文件的符号链接问题

在我的主目录中，我有一个laravel项目文件夹：

/home
  /user
    /project
      /public     <--------.
        index.php          |
      /bootstrap           |
        autoload.php       |
      /config              |
        /public            |
/src                       |
  /http                    |
    /project (softlink to here)

在project/public/index.php中，我有这个：

require __DIR__.'/../bootstrap/autoload.php';

我将我的apache公用文件夹软链接到我的用户目录中的公用文件夹：

$ ln -s /home/user/project/public /srv/http/project

所以我应该能够打开localhost/project。但我得到一个500内部服务器错误。以下是来自apache:的相关日志

$ cat /var/log/httpd/error_log
[Tue Jun 02 2015] [:error] PHP Warning:  require(/home/user/project/config/public/../bootstrap/autoload.php): failed to open stream: No such file or directory in /home/user/project/config/public/index.php on line 21, referer: http://localhost/project/
[Tue Jun 02 2015] [:error] PHP Fatal error:  require(): Failed opening required '/home/user/project/config/public/../bootstrap/autoload.php' (include_path='/home/user/project/vendor/phpunit/php-text-template:/home/user/project/vendor/phpunit/php-timer:.:/usr/share/pear') in /home/user/project/config/public/index.php on line 21, referer: http://localhost/project/

日志表明服务器正在查找/home/user/project/config/bootstrap/autoload.php。为什么？我没有链接到/home/user/project/config/public。我不知道这是apache、php、链接或文件系统的问题。