I am not sure if your shortcodes are right or got changed here by the forum syntax parser, but that option part looks wrong:
Option s should contain a search string. In your example it includes the other option cat_slug. I think you do not need option s at all because you just want to filter for cat_slug.
So I think your shortcodes should look like this:
[asa2_smart_collection tpl="Sortable_table" cat_slug="top-10-expresso-automatic-coffee-machines" /]
[asa2_smart_collection tpl="Sortable_table" cat_slug="top-10-expresso-coffee-machines" /]
More details about the options for shortcode asa2_smart_collection can be found here: http://docs.getasa2.com/shortcodes_asa2_smart_collection.html#cat-slug