Does anyone knows what software and how they obtain the above information?
I am thinking you are looking at possibly using the Bentley Navigator software which has Clash Detection tools.
https://www.bentley.com/en/products/product-line/project-delivery-software/bentley-navigator
If you are wanting to ask specific questions about the operation of this software you might like to post to the Project Review Forum.
RegardsAndrew BellTechnical SupportBentley Systems