ORA-25450: error string during evaluation of rule set string.string
Cause : The specified error occurred during evaluation of the rule set.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Check the error and take appropriate action.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.