I found this http://techland.time.com/2010/05/04/the-last-man-in-a-universe-of-robots/
The Story is :
Second Ending goes like this: guy wakes up from long hypersleep to discover that the rest of humanity has died out around him. All that’s left are a bunch of service robots, one of whom woke him up. Our hero, Ross, is pretty bummed that he’s the last human being alive. He misses his wife/girlfriend (I forget which) Alice.
Slowly he starts exploring the ruined Earth he’s inherited. The dead sea, the irradiated earth, etc. He deploys platoons of robots to search for other people, or any life at all, and eventually just for food. At the same time the robots start evolving from clunky automata to sophisticated devices. The process accelerates as Ross starts going in and out of hypersleep — he’ll have himself put down for a couple of centuries while the robots work on a project, then when he wakes up the Earth will have degenerated further, and the robots will have gone through a couple of hundred iterations. Eventually we get into a strange deep future, with energy beings and a dying sun …