Stainless vs VeriFast

Stainless

6.9 #24 in Formal Verification Tools

About Stainless

VeriFast

7.1 #17 in Formal Verification Tools

About VeriFast
StainlessVeriFast
Free planYes
Free trialNoNo
Paid fromFree
PlatformsLinux, macOS, Windowsextension, Linux, macOS, Windows
Free planYes
Verification methoddeductivesymbolic
Supported formalismscontractscontracts
CounterexamplesYes
Input languagesScala 3C, Rust, Java
Deploymentself-hostedself-hosted

Listed together in Best Formal Verification Tools