codeigniter pagination not working as expected

I tried a lot but cant seem to figure out this, any help appreciated. My articles have votes, and I have a page which is supposed to show most voted articles. Am using codeigniter btw. The controller:

function most_voted()
    {
        $per_page = 3;
        $cur_page = $this->uri->segment(4);
        /*
        if($cur_page == "") $cur_page = 1;
        else $cur_page = (integer)$cur_page;
        */
        $offset = ($cur_page - 1) * $per_page;
        if($offset < 0) $offset = 0;
        $this->load->model('article_model');
        $result_rows = $this->article_model->GetMostVoted($per_page,$cur_page);
        $total_rows = sizeof($result_rows) + 10;
        echo "total rows is : ".$total_rows.'<br>';
        echo "cur page is   : $cur_page <br>";

        //$this->load->library('pagination');
        $config['base_url'] = base_url().'articles开发者_如何学运维/most_voted/page/';
        $config['uri_segment'] = 4;
        $config['num_links'] = 3;
        $config['first_link'] = '<<First';
        $config['last_link'] = 'Last>>';
        $config['prev_link'] = '< Previous';
        $config['next_link'] = 'Next >';
        $config['total_rows'] = $total_rows;
        $config['per_page'] = $per_page;
        $this->pagination->initialize($config);


        $data['articles'] = $result_rows;
        $data['view_file_name'] = 'articles/all_articles_view';
        $this->load->view('includes/template',$data);
        //echo $this->db->last_query();
    }

The model :

function GetMostVoted($limit,$offset)
    {
        $this->db->order_by('votes','desc');
        $q=$this->db->get('cgh_articles',$limit,$offset);
        if($q->num_rows() > 0)
        {
            foreach($q->result() as $row)
            {
                $data[] = $row;
            }
            return $data;
        }
    }

The problem : Issue is that though I get pagination like < Previous 1 2 3 4 5 Next > but clicking on 2 goes to url : page/3 clicking on 3 goes to url : page/6 clicking on 4 goes to url : page/9 and so on. I want a click on 2 to go to page/2, 3 to page/3, and so on. Any suggestions as to whats going wrong?

If you need any more info, please let me know, thanks.

The way the pagination class works is that it returns the item at which the page should start.

For example, url : hostanme/controller/page/9 means that the page should be rendered starting with the 9th most voted article. See the example in the codeigniter documentation.

Also, you have $total_rows = sizeof($result_rows) + 10;. Why is that ?

There is an excellent tutorial for this on nettuts.