cpuminer problem

[mircot80]

Hello.
I am trying cpuminer on a server with Xeon cpu, i know it is not convenient to do the mining with cpu but it is a test.
I would like to use the antpool pool, this is the start command:
"minerd.exe -a sha256d -o stratum+tcp://stratum.antpool.com:3333 -u USERID.test1 -p PASSWORD"
The mining does not start, see photo:

http://www.assistenzainformatica.tv/immagine/miner/CPUMINER.PNG

Something wrong?
Thank you

[mircot80]

Other photo:

http://www.assistenzainformatica.tv/immagine/miner/CPUMINER2.PNG

Thanks