custom rule to detect SSN not working

Hello Experts,

                           I created a custom rule with regex (
<Pattern>^(?!000|666)[0-8][0-9]{2}-(?!00)[0-9]{2}-(?!0000)[0-9]{4}$</Pattern>)
to detect SSN values in a test ssn java code but the Fortify scan is not detecting any violations and it always displays a message - "0 New Issues and 0 issues removed" . .I want the scan to detect any hard coded SSN's in the code and display it the output , can  you please assist . 

Attached the Test SSN java code with hard coded SSN values, custom rule XML in png format and the 0 New issues error . 

Thank you,