In reply to verified:
The UVM verbosity level does not change the detail of a message. It changes the number of messages that get through to display. When the UVM_VERBOSITY is set to UVM_LOW, only the info messages with UVM_LOW and UVM_NONE get through. When UVM_VERBOSITY is set to UVM_MEDIUM, only messages with UVM_MEDIUM, UVM_LOW and UVM_NONE get through. (Note that UVM_DEBUG should only used for debugging UVM base class library issues)