constraint-based test generation

Technique

Constraint-based test generation is a processor-verification technique associated with model-based instruction-stream generation, where constraints or constraint-solving methods guide the creation of tests. In the cited RISC-V verification literature, it is discussed alongside randomized templates, constrained-random descriptions, coverage models, and cross-level co-simulation workflows for RTL verification.

First seen 5/26/2026

Last seen 6/7/2026

Evidence 7 chunks

Wiki v1

WIKI

Overview

Constraint-based test generation is discussed in processor-verification literature as part of model-based instruction-stream generation. Model-based approaches separate the test generator from the architecture description, and prominent examples use constraint-solving techniques. Efficient test generation is important because extensive RTL processor verification is crucial for avoiding bugs, while simulation-based verification requires strong test generation to achieve thorough coverage. [Simulation-based RTL verification needs efficient test generation; Model-based instruction-stream generation can use constraint solving]

Role in instruction-stream generation

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NEIGHBORHOOD

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RELATIONSHIPS

2 connections

Efficient Cross-Level Testing for Processor Verification: A RISC-V Case-Study ← mentions 90% 3e

The paper mentions constraint-based test generation as a related approach.

riscv-dv ← implements 95% 2e

RISC-V DV implements constraint-based test generation using SystemVerilog constraints.

LINKED ENTITIES

1 links

Instruction Stream Generation application_area The evidence explicitly frames model-based and constraint-solving approaches as approaches for instruction stream generation in processor verification.

CITATIONS

7 sources

7 citations — click to expand

[1] Simulation-based RTL verification needs efficient test generation Efficient Cross-Level Testing for Processor Verification: A RISC-V Case-Study

[2] Model-based instruction-stream generation can use constraint solving Efficient Cross-Level Testing for Processor Verification: A RISC-V Case-Study

[3] Constraint propagation across instructions Efficient Cross-Level Testing for Processor Verification: A RISC-V Case-Study

[4] Coverage-model constraints Efficient Cross-Level Testing for Processor Verification: A RISC-V Case-Study

[5] Constraint-based RISC-V test-generation approach and limitation Efficient Cross-Level Testing for Processor Verification: A RISC-V Case-Study

[6] RISC-V DV constrained-random generation Efficient Cross-Level Testing for Processor Verification: A RISC-V Case-Study

[7] Cross-level RISC-V RTL verification workflow Efficient Cross-Level Testing for Processor Verification: A RISC-V Case-Study