The "Thread terminated due to fatal error: Verified" message in RPCS3 is a generic crash notification. It usually means the emulator encountered an instruction or a file state it didn't expect.
Understanding "Thread Terminated Due to Fatal Error: Verification Failed" rpcs3 thread terminated due to fatal error verified
Running out of system memory, especially on systems with integrated graphics, can cause threads to terminate unexpectedly. Bad Dumps: The "Thread terminated due to fatal error: Verified"
Inconsistent rendering calls often trigger this verification failure. Adjust these specific settings in the FIFO Accuracy : Set this to especially on systems with integrated graphics
Community members and developers have identified several ways to "save" your game session: Help:Validating PlayStation 3 game dumps - RPCS3 Wiki