The official sees 2 players on Team A for more than 3 seconds with Team having team control in front call. The official calls 6 seconds in the bucket instead 3 seconds.
Why did the official do this? So that he wouldn’t hear the coach of team A ask him which player was in the free throw lane too long. By calling 6 seconds in the free throw lane the coach knows it was both players and doesn’t have to ask the official who it was.