Dafny vs VeriFast

Dafny

5.6 #20 in Formal Verification Tools

About Dafny

VeriFast

5.3 #30 in Formal Verification Tools

About VeriFast
DafnyVeriFast
Free trialNo
PlatformsLinux, macOS, self-hosted, WindowsWindows, macOS, Linux
Free planYes
Verification methoddeductivesymbolic
Supported formalismscontractscontracts
CounterexamplesYes
Input languagesDafnyC, Rust, Java
Deploymentself-hostedself-hosted

Listed together in Best Formal Verification Tools