Formal Modelling of PBFT Consensus Algorithm in Event-B

Listing 18

Invariants of M3.

 @inv1 partition(Faulty,Crash,Evil)

 @inv2 card(corr)≥card(crash)+1

 @inv3 card(corr)≥card(evil)+1

 @inv4 View_change∈NODES→(NODES⇸ℕ)