Tabby CAD FAQs for Formal Use

• FAQs relating to SBY
  • Documentation
  • SystemVerilog Assertions (SVA)
  • Choosing an engine and solver
  • Tool runtime
  • Proof complexity
  • Where do assertions fail
  • smtbmc induction failures don’t start from reset
  • Design initialisation
  • Clock signals
  • Handling combinational loops
  • Semantics of “disable iff”
  • Overconstraint due to assumptions
  • PREUNSAT check
  • Witness cover traces
  • Can liveness properties fail