Formal Verification · All levels
Formal Verification Metrics Reference
Core metrics for proof quality, closure confidence, and signoff readiness.
Core metric families
Proof status quality: proven/falsified/inconclusive plus vacuity context.
Reachability: critical cover objective hit-rate and unexplained unreachable trend.
Convergence: hard-property aging, helper-lemma yield, and runtime efficiency.
Risk governance: bounded-only critical count and waiver debt trajectory.
Execution: time-to-first-root-cause and post-fix reopen rate.
diagram
EVIDENCE MATRIX - formal closure
+-----------------------------+--------------------------------+--------------------------------+---------------------------+
| Evidence | Tells you | Does not prove | Next action |
+-----------------------------+--------------------------------+--------------------------------+---------------------------+
| property status by class | closure shape by requirement | model realism | pair with cover reachability |
| vacuity and trigger checks | assertion meaningfulness | full legal-path exploration | inspect assumptions |
| counterexample traces | concrete divergence path | complete bug-space closure | classify and replay |
| assumption audit trail | model boundary confidence | implementation correctness | review spec traceability |
| before/after trend packet | mitigation movement quality | long-window stability | run broader matrix |
+-----------------------------+--------------------------------+--------------------------------+---------------------------+