PageLines develops all its products following the WordPress API standards, so in theory DMS should work with all plugins available on the WordPress plugin repository. However, this is simply not the case, as some plugins are either badly coded to begin with or are bundled with scripts that cause conflicts.
In regards to your question about whether DMS will work with an A/B testing plugin such as the ones you linked, I can't say. I have never needed any such plugin nor tested them. After watching the brief video for that Nelio plugin, one thing I heard that may cause a problem is how they implement trying two different layouts for different customers.
In my opinion and again, I haven't tested the plugin nor have any experience, the idea of a plugin allowing you to use two different layouts (templates) may cause a conflict with DMS.