It comes after the judge said he would take majority verdicts because they could not reach unanimous decisions.
Mr Butt, 27, and Mr Asif, 28, deny conspiracy to cheat and conspiracy to accept corrupt payments.
They are accused of plotting to bowl deliberate no-balls in last summer's Lord's Test against England.
The allegations came from an undercover reporter investigating match-fixing.
Prosecutors allege that Mr Butt, the former Pakistan captain, and bowler Mr Asif conspired with agent Mazhar Majeed and Pakistan fast bowler Mohammad Amir, 19, to deliver three intentional no-balls during the Lord's Test between Pakistan and England from August 26 to 29 last year.
Jurors were told that Mr Majeed, 36, accepted £150,000 in cash, as part of an arrangement to rig games or aspects of games, from an undercover News of the World reporter.
The jury has heard that the agent told the undercover journalist that two no-balls would be bowled by Mr Amir and one by Mr Asif at pre-arranged points during the Lord's Test.