COBALT uses the Z3 SMT solver to prove whether critical bug classes in your C/C++ code are reachable or impossible. Not another risk score. A verifiable SAT/UNSAT verdict with a solver-backed witness your team can inspect — for every supported check.
Static analysis tells you what might be wrong. COBALT tells you whether a critical condition is actually reachable — and for supported proofs, whether it can be ruled out altogether. That matters when code is safety-critical, externally exposed, or too costly to ship on probabilistic confidence.
Watch COBALT parse the AST, lift arithmetic operations into Z3 bitvector formulas, and return a mathematical verdict — in seconds.
28+ disclosed targets across critical infrastructure, cryptography, embedded systems, and regulated software.
For security teams validating critical C/C++ code before release, remediation, or disclosure.
Real bugs. Mathematical proofs. Responsible disclosure. Click to expand.
| Capability | Snyk | SonarQube | GitHub CodeQL | COBALT |
|---|---|---|---|---|
| Mathematical proof (Z3 SMT) | ✗ | ✗ | ✗ | ✓ |
| SAT/UNSAT verdict per finding | ✗ | ✗ | ✗ | ✓ |
| Counterexample witness | ✗ | ✗ | ✗ | ✓ |
| Fix certified UNSAT | ✗ | ✗ | ✗ | ✓ |
| Cross-file integer overflow | ✗ | ✗ | ~ | ✓ |
| Zero false positives (witness required) | ✗ | ✗ | ✗ | ✓ |
| PDF proof certificate | ✗ | ✗ | ✗ | ✓ |
| Disclosed CVE-class findings | — | — | — | ✓ |
Submit a repository or codebase. COBALT runs Z3 against it and returns a signed proof certificate — not a risk score, not a list of warnings. A mathematical verdict on every finding.