From Specification
to Tapeout-Ready
Assertions.
Avestra is a multi-agent AI system that generates production-grade SystemVerilog Assertions and Coverage directly from your RTL design and specification—in minutes, not days.
Verification is still
painfully manual
~70% of silicon failures are functional. They are hardest to detect pre-silicon, slowest to debug, and most expensive to fix—yet assertion-based verification remains a largely manual process.
Today's Reality
- Assertions handwritten — 20% of DV cycle wasted
- Bugs escape to silicon — costs millions in re-spins
- Coverage gaps invisible until post-silicon failure
- LLMs one-shot, hallucinate, not connected to RTL
Real-world example: FIFO Off-by-One Bug
Off-by-one error in counter → fifo_full asserted one cycle late → data overwritten silently → corruption propagates. Works in most simulations. Only fails under specific timing patterns.
Avestra's Approach
- Multi-agent AI generates full SVA suite from spec + RTL
- Spec ↔ RTL inconsistency detection before first sim
- SVA coverage-driven testbenches — comprehensive SystemVerilog tests auto-generated
- Fully auditable, deterministic — not just prompting
Built for production-grade
comprehensive verification
Avestra doesn't merely generate SVA from Spec/RTL. It extracts microarchitectural intent, classifies verification semantics, maps them to design objects, and emits traceable assertions with confidence scores.
Hybrid AI Architecture
Combines a rule-based reasoning engine with multi-agent orchestration. Not just prompting — deterministic, auditable output with every run.
<1% Hallucination Rate
Proprietary RAG database with deep SVA domain expertise ensures production-grade, sign-off-quality assertions.
Multi-Agent Orchestration
8 specialized agents work in concert: Spec Interpretation, RTL Context, Assertion Generation, Cross Check, Conflict & Consistency, Simulation, Feedback, and Coordinator.
Spec ↔ RTL Bug Detection
Identifies missing states, illegal transitions, timing violations, and undefined behavior between specification and RTL before you write a single testbench line.
Proprietary RAG Database
Built from 3 industry-defining SVA textbooks, 22 granted US patents, and 35 years of CPU/ASIC/SoC expertise — domain knowledge no generic LLM can match.
LLM Agnostic
The hybrid rule engine is model-independent. Swap the underlying LLM without changing assertion quality or output structure.
Exhaustive SVA Feature Coverage
Parameterized, asynchronous, multi-clocked assertions. Subroutines, sequence antecedents, recursive properties, multiple implications, local variables.
SVA Coverage-Driven Testbench Generation
Generates comprehensive SystemVerilog testbenches driven by SVA coverage targets — UVM-ready stimulus, directed tests, and response checkers that close coverage holes identified by the assertion suite.
The 8 Specialized Agents
Spec Interpretation
Extracts FSM, temporal rules, safety/liveness
RTL Context
COI, clock domains, signal tracing, state encoding
Assertion Generation
Property synthesis, assume gen, path encoding
Cross Check
Validates generated assertions against spec and RTL for correctness and completeness
Conflict & Consistency
Cross-checks spec ↔ RTL inconsistencies
Simulation
Generates compile/sim scripts for Questa, VCS, Xcelium
Feedback
Refines assertions based on simulation results
Coordinator
Orchestrates all agents with deterministic flow
Purpose-built agents,
each an expert in its domain
Every Avestra agent is a standalone product that can be used independently or as part of the full agentic pipeline — from RTL analysis to verified testbenches.
RTL Analysis Agent
Deep structural analysis of your RTL design. Traces cone-of-influence, resolves clock domains, identifies state encoding, and maps signal relationships to build a complete verification context.
- Cone-of-influence (COI) extraction per signal
- Multi-clock domain identification & CDC analysis
- State machine extraction and transition mapping
- Port, interface, and hierarchy resolution
Specification Analysis Agent
Parses natural language specifications, FSM diagrams, and timing tables to extract formal intent — temporal rules, safety invariants, liveness conditions, and illegal state sequences.
- Natural language to formal property extraction
- FSM diagram parsing and transition modeling
- Temporal rule and liveness condition detection
- Illegal state and corner-case enumeration
Assertion Generation Agent
Synthesizes production-grade SystemVerilog Assertions from verified spec and RTL context. Outputs clocked properties, assume constraints, cover points, and vacuity guards — fully traceable to source.
- Clocked assert, assume, and cover property synthesis
- Multi-clocked and parameterized assertion generation
- Vacuity guards and recursive property support
- Every assertion traced back to spec + RTL source
Testbench Generation Agent
Generates comprehensive SystemVerilog testbenches driven by SVA coverage targets. Produces UVM-ready stimulus, directed tests, and response checkers that close coverage holes identified by the assertion suite.
- SVA coverage-driven test stimulus generation
- UVM-ready testbench architecture
- Directed tests targeting uncovered assertion paths
- Response checkers and self-checking test infrastructure
From specification to
silicon-ready assertions
A three-step agentic pipeline that replaces weeks of manual assertion authoring with a deterministic, auditable AI workflow.
Provide Inputs
Upload your chip specification (natural language, .docx, FSM diagrams) and RTL design (Verilog/SystemVerilog/netlist). Avestra's proprietary RAG database adds deep domain context automatically.
- Textual spec / .docx
- RTL: Verilog / SV / netlist
- RAG auto-enriched context
Multi-Agent Analysis
8 specialized agents execute in an orchestrated pipeline. Spec and RTL agents analyze independently, then cross-check for inconsistencies before the Assertion Generation Agent synthesizes properties.
- Spec ↔ RTL inconsistency report
- FSM extraction & mapping
- Temporal semantics classification
- Confidence scoring per assertion
Receive Production Outputs
Get a complete, ready-to-use SVA assertion suite with simulation scripts, testbench code, and a detailed inconsistency report — all in minutes, not days.
- SystemVerilog Assertions (.sv)
- SVA Coverage properties
- UVM testbench + sim scripts
- RTL bug & inconsistency report
Works with industry-standard simulators
Avestra generates compile and simulation scripts for all major EDA tools.
Questa
Siemens
VCS
Synopsys
Xcelium
Cadence
Comprehensive verification
AI agent platform
Inputs
Specification
Natural language · FSM diagrams · tables
RTL Design
Verilog / SystemVerilog · netlist
RAG Context
Proprietary SVA domain knowledge base
Agentic AI Intelligence
Spec Analysis Agent
FSM extraction · transition paths · temporal rules
RTL Analysis Agent
COI · clock domains · signal tracing · state encoding
RTL–Spec Inconsistency
Missing states · illegal transitions · timing violations
SVA Generation Agent
Property synthesis · assume gen · path encoding
Cross Check Agent
Validates assertions against spec + RTL · gap detection
Testbench Gen Agent
UVM · directed tests · stimulus · checker
Outputs
SVA Assertion Suite
assert · assume · cover · clocked · vacuity-guarded
SVA Coverage
Formal cover hits · vacuity · reachability
Testbench
UVM · directed tests · stimulus · checker
Inconsistency Report
RTL bugs · spec clarifications · diff annotations
Verified · Closed · Silicon-Ready
100% assertion closure · proof certificates
Deep domain expertise,
from the ground up
22 Granted US Patents
In design and verification
Deep Industry Experience
CPU/ASIC/SoC Design & Verification
Published Works
SystemVerilog Assertions and Functional Coverage
2021, 3rd Ed. · Industry-wide standard reference
Introduction to SystemVerilog
2023 · Complete language reference guide
ASIC/SoC Functional Design Verification
2018 · Guide to Methodologies and Applications
Hit the ground running.
Day 1 operational.
Every Avestra subscription includes the full Stratos platform by Tuple Technologies — a complete enterprise operations suite built for semiconductor and IC design teams. No third-party SaaS sprawl. No months of setup.
Day 1 operational readiness
Tuple Technologies handles all onboarding, infrastructure configuration, identity setup, and compliance tooling — so your team starts generating assertions from minute one, not month three.
AI-powered operations, built in
Ask AI retrieves operational knowledge from runbooks, tickets, and docs in natural language. Analytics AI surfaces cost attribution, anomalies, and utilization trends across your entire EDA environment.
Purpose-built for EDA & semiconductor
License management with SLURM, LSF, and SGE integration. Real-time seat tracking, P50/P95/P99 utilization analytics, and cloud cost optimization built for IC design workflows.
Simulator license scheduling
Avestra-generated assertions must be run in VCS, Questa, or Xcelium — license availability gates every regression cycle.
License Management
Real-time EDA seat availability via SLURM/LSF/SGE. No simulation queue surprises — 20–25% license cost reduction.
Assertion suite review & sign-off
Generated SVA suites require multi-stakeholder review and formal approval before committing to tapeout.
Operational Workflows
Structured approval flows with routing, escalation, and full audit trail. 89% of workflows auto-completed.
Verification defect & spec gap tracking
RTL–spec inconsistencies and failing assertions need structured follow-up, ownership, and resolution tracking.
Support & Ticketing
Built-in triage, routing, and resolution tracking with 100% SLA compliance. No external Jira required.
Multi-team RTL project access
RTL designs, assertion libraries, and spec documents need role-based access across design, DV, and management teams.
Identity & SSO
Enterprise SSO, RBAC, and full audit logging across all users and projects — SOC 2 aligned from day one.
Simulation farm health monitoring
Large formal verification and simulation runs depend on healthy infrastructure — failures block assertion closure.
Monitoring & Alerting
99.9% uptime across 24 monitored services with configurable alert routing and escalation policies.
Cloud simulation cost control
Formal verification and large-scale SVA simulation runs can rack up significant GPU and CPU cloud costs.
Omni
$84K avg. annual savings via spot optimization, savings plans, and cost analytics across 5 clouds.
Simulation incident response
When regressions fail or tools go down mid-run, fast structured response is critical to keeping tapeout on track.
Incident Management
14-minute MTTR with on-call scheduling, structured workflows, and post-mortem tooling.
Compliance & IP protection
RTL designs and generated assertions are highly sensitive IP requiring enterprise-grade security posture.
Secure
97% compliance score — MITRE ATT&CK-mapped threat detection, Kubernetes security, and continuous compliance.
CPU & GPU savings plans, spot optimization, and cost analytics across all clouds.
Enterprise SSO, RBAC, and full audit logging — SOC 2 aligned from day one.
Unified infra monitoring with configurable alert routing and escalation policies.
Structured incident workflows, on-call scheduling, and post-mortem tooling.
Real-time EDA seat tracking, SLURM / LSF / SGE integration, and utilization analytics.
Internal support workflows with triage, routing, and resolution tracking.
Approvals, provisioning, and change management automation from one place.
MITRE ATT&CK threat detection, Kubernetes security, and continuous compliance.
See the full Stratos platform in action
Explore the complete enterprise operations suite included with every Avestra subscription.
Ready to eliminate
assertion debt?
Join verification engineers at leading semiconductor companies who are moving from days to minutes with Avestra.