Please leave less languages count for translate. Other you very quickly will eat quota for translation !!!
At time site translation with help Sef Translate goo.gl/kyNnzQ
have not any different how we see page from site: or when press "translate" or from sitemap.
Every time when site url has suffix like: site/de/ "de" or "fr" or "en" or some other - page content move through SefTranslate and BING or Google translate API - and we translate page .
If suffix not exist like: site/index.php - Sef Translate can't do web page translation
When you turn on, "Sitemap" in Sef Translate for your site, Sitemap will translated to all languages which you set for translation. You will take many sitemap on every your language. But for that you need select option "Site Map Component" - we support only these components "XMAP", "JooMap", "JM Sitemap" - you not selected that option. And again please limit languages number for translate.
Translate algorithm, That methods as we do page parsing and move for translate to Google or BING Translate API.
We do that with break web page to small peaces and next translate these small pieces.