PROVEN
Concurrent mutex — Certificate of Formal Verification (ALL CHECKS PROVEN)
06_threads_mutex.c · entry main · 25 lines · 1 file · 2/2 PROVEN · 0.5s
Formally verified · Mathematically proven · Safety-critical softwareFormally verified · Safety-critical software
High-assurancesoftware,formallyverified.
Giolit Labs advances the science and engineering of high-assurance software systems — the formal specification, proofs, formal verification, formal methods, synthesis, testing, and integration of systems whose correctness, safety, security, and reliability are of critical importance.
Computational artifacts we verify
Software Programs
Communication Protocols
Embedded Controllers
Autonomous & Intelligent Systems
Neural Networks & AI Models
Hardware & RTL Designs
Cyber-Physical Systems
Hybrid Architectures
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Two proof engines · C + SystemVerilog
GIOLIT VERIFIERS — C & SVA
Formal Verification.Built for High-Assurance Software & Hardware.
Prove C projects free of run-time errors — or prove every SystemVerilog assertion of your RTL for all inputs. Proof, not sampling, with a certificate from every run.
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Giolit Program Verifier 7.0
The world's first end-to-end C project formal verifier.
A Complete C projects formal verifier. Until now only single functions could be formally verified — Giolit Verifier proves end-to-end projects spanning multiple files. The C project may include multiple threads or recursions, multiple functions and multiple files. Testing tries a few inputs; a proof covers every input. Correct code comes back proven safe, buggy code comes back with the exact input that breaks it — and every run ends with a certificate carrying the full evidence. Blazing fast: 0.5s thread proof, 16s 35-file project entry, ~10s median.
Proof for every input
Correct code comes back proven safe for all inputs — not just the ones you tested.
Exact failing input when buggy
Buggy code comes back with the exact input and step-by-step trace that breaks it.
Certificate with full evidence
Every run ends with a certificate or report holding the full evidence, ready to share.
0.5s
Mutex proven
16s
35-file project entry proven
~10s
Median per benchmark
Blazing fast and battle-tested: 177 benchmarks — 102 proven safe, 75 real bugs found, zero wrong answers.
Proof, not promises
Example certifications of formal verification
Real certificates produced by the verifier — open the PDFs and inspect the evidence for yourself.
VIOLATIONS FOUND
Threads race — Verification Report: Errors Found (VIOLATIONS FOUND)
07_threads_race.c · entry main · 23 lines · 1 file · 1 proven / 1 violated · 0.3s
Shows the exact failing interleaving and trace.
PROVEN
kvserver project — Certificate of Formal Verification, entry kv_fletcher16_words (ALL CHECKS PROVEN)
kvserver src/*.c · 35 files / 4870 lines linked end-to-end · entry kv_fletcher16_words · 9 proven / 0 violated · 16s · 104-page PDF
Technical detail: verification covers multiple threads (POSIX threads and C11 atomics), recursion, and multiple functions and files. Every run yields a certificate or report with full evidence (PDF + JSON + SARIF + proof).
§SV
Giolit SVA Verifier 1.0
Giolit SVA Verifier 1.0 — SystemVerilog Assertions, proved.
Simulation checks the input sequences somebody wrote — sva-verify --reset=rst design.sv checks all of them. It reads your RTL hardware with its SystemVerilog Assertions (SVA) as written — no test vectors, no engines to pick — and decides every property: PROVED, with a signed certificate your customer can check and the safety margin each proof holds; or FAILED, with the exact clock-by-clock run that breaks it. The expensive bugs are the sequences nobody simulated — corner cases it finds on day one, with covers and liveness decided in the same run. It runs offline on your machines and gates CI with exit codes and JSON.
You give RTL + SVA
Prover · invariantsExplorer · states + lassosSimulator · deep runs
You get proof or breaking cyclefirst engine to settle decides
PROVED
Margins proof — stars included
2 PROVED · Score ★★★☆☆ · 5 pages
GIO-SVA-9564A1822018 · signed
Download PDF
FAILED
Caught bug — the exact cycle
12-cycle trace + VCD + replay · 5 pages
GIO-SVA-785AAA26C149 · signed
Download PDF
PROVED
SoC proof — 7 files, one certificate
25 PROVED + 6 COVERED · 21 pages
GIO-SVA-2CAD57A4AC96 · signed
Download PDF
PROVED
Lockstep proof — 12M states, 3 lines
2 PROVED in 1.5 s · 5 pages
GIO-SVA-94B352394746 · signed
Download PDF
$ sva-verify --reset=rst --margins 11_margins.sv
PROVED a_level margin 3 ★★★☆☆
PROVED a_latency margin 3 ★★★★★
Score ★★★☆☆ (3/5) · Report: cert/certificate.pdf
Measured receipt · same 20s budget per design
Giolit SVA219
EBMC 6.0160
SymbiYosys104
designs decided, of 231 · 0 wrong on 340 props
Skeptic's note: on 12 bit-level TACAS netlists, abc pdr and EBMC win (7, 6 vs 4) — their home turf. Where SVA language matters, the scoreboard above holds. Every result reruns from the trial package.
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Marketplace — Ecosystem of Healthcare Software Components
A curated ecosystem of verified healthcare software
A marketplace for healthcare software components that enables organizations to discover, integrate, verify, and deploy interoperable software solutions efficiently and reliably — every component ships verification-ready and interoperable, preserving correctness guarantees across integrations.
The marketplace facilitates
- Discovery of Healthcare Software Components
- Verification-Ready Software Assets
- Interoperable Clinical Modules
- Electronic Medical Record (EMR) Components
- Reusable Domain-Specific Services
- Standards-Oriented Integration Frameworks
Integration-first by design. Every component ships verification-ready and interoperable — so teams can integrate verified modules into larger systems while preserving correctness guarantees.
Assurance Differentiator
Every component is formally specified, verification-ready, and Giolit-signed. Built with IEC 62304 alignment and HL7 / FHIR interoperability support.
IEC 62304HL7FHIRVerification-ReadyGiolit-Signed
IEC 62304
Aligned lifecycle
HL7 / FHIR
Native interoperability
Giolit-Signed
Every module, before deployment
HMS functional coverage — reference
Patient Management
Clinical Operations
Laboratory
Pharmacy
Hospital Operations
Finance
Human Resources
Supply Chain & Procurement
Analytics & Reporting
Integration Layer
AI Layer
Security & Compliance
Product Spotlight · World's First
Formally Verified Enterprise Orchestration Platform.
Real-world execution isn't linear. Navigate complex constraints, resource gaps, and safety policies with mathematical proof of goal reachability.
Mathematical goal reachability proofs
Constraint-aware dynamic routing
Zero undefined execution states
Automated verified resource bridging
VERIFIED_PATH_SOLVER
Explore full interactive simulation§02
About Us
The formal verification company.
Our methodologies are founded upon formal methods, automated reasoning, model checking, theorem proving, constraint solving, abstract interpretation, program synthesis, and software assurance techniques. We develop advanced technologies for the automated verification, synthesis, and integration of software ecosystems — and for the seamless integration of verified components into larger systems while preserving correctness guarantees.
Vision
To establish a unified framework for specification, verification, synthesis, testing, and integration that enables the systematic construction of trustworthy software ecosystems with mathematically demonstrable correctness properties.
Core Competencies
Formal VerificationAutomated ReasoningProgram AnalysisProgram SynthesisController Verification & SynthesisSoftware Testing & ValidationNeural Network VerificationCyber-Physical System VerificationHardware VerificationSoftware Integration & Assurance
Computational Artifacts We Cover
Software Programs
Communication Protocols
Embedded Controllers
Autonomous & Intelligent Systems
Neural Networks & AI Models
Hardware & RTL Designs
Cyber-Physical Systems
Hybrid Architectures
Mission
To enhance the reliability, safety, security, and correctness of software ecosystems through mathematically rigorous verification techniques — and to advance the state of the art in software assurance, enabling the systematic construction of trustworthy computational systems with mathematically demonstrable correctness properties.
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Services
What we deliver — and prove
Project-delivered verification, testing, synthesis, and engineering — each engagement grounded in formal methods, each result backed by mathematical evidence.
01
TEST
Automated Testing of Software Systems
Comprehensive testing and validation services for complex software-intensive systems.
Capabilities
Automated Test GenerationRegression TestingFuzz TestingProtocol TestingAPI ValidationEmbedded System TestingAI System EvaluationCoverage & Reliability Analysis
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VERIFY
Formal Verification of Software Systems
Rigorous mathematical verification of system properties through automated and semi-automated reasoning techniques.
Verification Targets
ProgramsProtocolsControllersNeural NetworksHardware ModelsCyber-Physical SystemsDistributed SystemsHybrid Architectures
Properties Verified
Functional CorrectnessSafetySecurityRobustnessConsistencyReachabilityDeadlock FreedomLivenessCompliance
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GENERATE
Automated Generation of Software System Components
Generation of software artifacts from formal specifications, models, and declarative requirements.
Research Areas
Correct-by-Construction GenerationModel-Driven DevelopmentProgram SynthesisController SynthesisSpecification-Guided Development
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BUILD
Building Formally Verified Software Systems
Development of software systems in which verification activities are integrated throughout the engineering lifecycle.
Application Domains
Safety-Critical SystemsMedical TechnologiesAutonomous SystemsIndustrial AutomationEmbedded PlatformsSecure Computing SystemsAI-Enabled Systems
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Consulting
How we partner with you
From a single verification study to an organization-wide assurance program — we advise on process, methodology, and the engineering culture that makes correctness sustainable.
Engagement model
Engagement starts with a focused advisory scope and scales to embedded, long-term partnership on assurance programs — from a single verification study to organization-wide process engineering.
01
Formal Verification
Mathematically rigorous methods to establish correctness properties of software and hardware systems.
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Automated Testing
Advanced testing infrastructures, automated test generation frameworks, fuzzing technologies, and validation pipelines.
03
Building Software Systems
Design, development, integration, and deployment of dependable software systems with emphasis on quality, traceability, and assurance.
04
Verification Process Engineering
Verification-oriented software development processes suitable for safety-critical and mission-critical applications.
05
Research & Technology Development
Collaboration with academic, industrial, and governmental organizations on advanced verification and assurance technologies.
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Tools & Research Platforms
The engine behind the assurance
Proprietary tools and platforms built from our research — covering verification, synthesis, testing, and integration. These are the same engines that power our services and underpin every product we ship.
Tools
CHC Solver
Constraint Horn Clause solving for verification backends.
Automated Software Verifier
End-to-end automated verification of programs.
Controller Verifier
Verification of control logic and embedded controllers.
Verified Program Generator
Synthesis of programs with correctness guarantees.
Verified Controller Generator
Synthesis of verified controllers.
Fuzzer
Intelligent fuzzing for vulnerability and edge-case discovery.
Neural Network Simulator
Simulation and behavioral analysis of AI models.
Automated Software Integrator
Composition of heterogeneous components with preserved correctness.
Research Platforms
Enterprise Orchestration Platform
Formally verified enterprise orchestration ensuring constraint-aware execution and mathematical goal reachability guarantees.
Software Verification Platform
Automated verification of software systems against formal specifications and correctness requirements.
Controller Verification Platform
Analysis and verification of control logic under diverse operational conditions.
Neural Network Assurance Platform
Formal analysis of safety, robustness, and behavioral properties of machine learning systems.
Automated Testing Platform
Intelligent generation and execution of test suites for software validation.
Verified Software Generation Platform
Synthesis of software components from formal specifications with correctness guarantees.
Automated Software Integration Platform
Integration of heterogeneous software components while preserving behavioral consistency and system-level correctness.
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Standards & Assurance
Aligned to the frameworks that count
Our methodologies are applicable to systems developed under assurance and certification frameworks — including those governing medical, automotive, aerospace, railway, and secure software development.
Industries we serve
Medical & HealthcareAutomotiveAerospace & AviationRailwayIndustrial AutomationAutonomous SystemsAI-Enabled SystemsSecure & Critical Infrastructure
ISO 26262
Automotive functional safety
IEC 61508
Functional safety of E/E/PE systems
IEC 62304
Medical device software lifecycle
DO-178C
Airborne systems software
EN 50128
Railway software
MISRA
Software development guidelines
Secure SD
Secure software development standards
Continuously applicable across
ISO 26262
IEC 61508
IEC 62304
DO-178C
EN 50128
MISRA
Secure SD
ISO 26262
IEC 61508
IEC 62304
DO-178C
EN 50128
MISRA
Secure SD
Engage Giolit Labs
Build with mathematically demonstrable correctness.
Whether you’re deploying a hospital management system, verifying a safety-critical controller, or engineering an assurance program — we apply formal methods, mathematical proofs, and rigorous formal verification techniques from specification to deployment.
Direct
giolitlabs@gmail.comLocation
Giolit Labs, RamavarmapuramThrissur, Kerala – 680009, India