The twins still had a lot of Rank Two and even Rank Three Divine Stomes. It's just that the higher the level, the less they had. Rank Four was obviously the same thing. Even counting everything they have, their numbers are just around 3000 Rank Four. Nonetheless, they started to use Rank Two Divine Stones first.
Ream didn't turn on the Time acceleration straight away. Instead, he just put the Divine Stones inside the hole and watched which options were liberated for him.
-58 Times Acceleration- Rank Two Divine Stones
Finally, Rean turned on the Circuitry Formation, which made the entire Dimensional Realm glow with golden light for a moment. Time accelerated 58 times as the sound of Divine Stones breaking apart could be heard. Just like before, one Divine Stone turned to dust every ten or so seconds.
"Seems like that as long as we use the highest acceleration available, the Divine Stones will be consumed by one every ten seconds," Rean considered.