In a standard UVM environment, programs blocks are generally not used, does this mean that only the first few time slots will be involved in UVM, such as Preponed/Active/Inactive/NBA/Observed
In reply to jianfeng.he:
If you are doing UVM verification. you only need to know about active/NBA regions. #0 adds inactive, which should be avoided. Assertions and clocking blocks add preponed, observed and re-active regions.