Synopsys VC SpyGlass Fault Analysis is a static analysis tool that estimates ISO 26262 functional-safety metrics such as Single Point Fault Metric (SPFM) from RTL or gate-level netlists, identifies safety and reliability hotspots, and generates prioritized remediation guidance.
Published May 16, 2026
Synopsys emphasizes early static analysis and reduced late-stage testbench requirements as positioning benefits. Siemens emphasizes architectural exploration and campaign reduction, while Cadence emphasizes simulation-based evidence generation and fault injection workflows. Each approach presents trade-offs between early estimation speed, evidence defensibility, and compute cost.
Public, attributable, product-specific vendor comparisons for VC SpyGlass Fault Analysis were not found in accessible sources. Community sentiment indicates support experiences and tooling preferences vary by account and organization.
Public EDA market share is typically discussed at a company level (Synopsys, Cadence, Siemens). Product-level adoption figures for VC SpyGlass Fault Analysis are not publicly disclosed.
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| Aspect | Synopsys VC SpyGlass Fault Analysis | Siemens Questa One Safety Analyzer | Cadence Incisive Functional Safety Simulator (IFSS) |
|---|---|---|---|
| Starting Price | Not publicly disclosed | Not publicly disclosed | Not publicly disclosed |
| Typical Use Case | Early, static guidance on ISO 26262 metrics (SPFM) at RTL or gate level without testbenches (vendor positioning) | Early safety concept exploration, structural analysis, and reduction of fault campaign workload | Simulation-based fault injection campaigns integrated with verification environments |
| Key Strength | Static analysis for early hotspot identification and prioritized remediation guidance (vendor claims) | Broad safety workflow support: architectural exploration, partitioning, and campaign interoperability | Simulation-centric evidence generation; established fault injection workflows and associated training |
| Key Weakness | Static estimation requires validation against simulation; limited public benchmarks and scarce product-specific reviews | Integration and setup effort may be significant; vendor ecosystem alignment matters | Fault simulation approaches are computationally expensive and require testbenches/environments |