Skip to content
DenseChip
Learn
PracticeCode labInterview

DenseChip

Navigate

Menu

LearnPracticeCode labInterview

Tools

All toolsSV editorCode repoResume
DenseChip

Practice, courses, and chip-design tools in one focused workspace.

LearnPracticeCode labInterviewToolsLearning paths

© 2026 DenseChip

AboutContactPrivacyTerms
Skip to lesson

Course contents

  • How to Use This Course
  • Reading Paths
  • Quick Start: Your First Green Build
  • Part 1: How Chips Get Made6
  • Part 2: Your Workstation5
  • Part 3: Specify and Architect3
  • Part 4: The Design Loop6
  • Part 5: The Verification Ladder6
    • Tests That Can Fail
    • Self-Checking and Golden Model
    • Random Stimulus and Seeds
    • Assertions
    • Coverage
    • Formal in One Lesson
  • Part 6: Automation and Reproducibility5
  • Part 7: Hand-Off to the Back-End3
  • Part 8: When Things Go Wrong3
  • Part 9: Project and Next Steps3
  • Reference4
Loading lesson

‹Start Here: RTL and Verification
  1. Topics
  2. Start Here: RTL and Verification
  3. Part 5: The Verification Ladder

Part 5 · The Verification Ladder · All levels

Part 5: The Verification Ladder

How do I gain confidence the design is right, not just lucky? Write a self-checking test with a reference model that fails on every real-bug mutant.

  • 6topics
  • 6lessons
On this page

    Part 5 answers: How do I gain confidence the design is right, not just lucky?

    One passing test proves little; confidence comes from a ladder where each rung catches bugs the lower rungs miss. This part climbs from tests that can fail through self-checking, random stimulus, assertions and coverage to a first look at formal methods.

    Every rung is motivated by a real mini_controller bug that the rungs below it let through.

    After this part you can

    • Write a self-checking test with a reference model that fails on every real-bug mutant.

    • Add assertions and coverpoints that catch a bug directed simulation missed.

    • Explain what formal asks that simulation cannot answer.

    Lessons

    #

    Lesson

    Level

    Status

    5.1

    Tests That Can Fail

    W · Working

    ready

    5.2

    Self-Checking and Golden Model

    W · Working

    ready

    5.3

    Random Stimulus and Seeds

    W · Working

    ready

    5.4

    Assertions

    W · Working

    ready

    5.5

    Coverage

    W · Working

    ready

    5.6

    Formal in One Lesson

    W · Working

    ready

    Every lesson in this part is ready. Work through them in order: each one sets up the problem the next one solves.

    Where other courses go deeper

    This course stays on the front-end start-up path and links out instead of repeating. These lessons build on or continue what this part teaches.

    • RTL: Self-Checking and Observability

    • RTL: SVA for RTL

    • SystemVerilog: Covergroup Basics

    • RTL: What Formal Adds Beyond Simulation

    Related topics

    • Course hub

    • Previous: Part 4 · The Design Loop

    • Next: Part 6 · Automation and Reproducibility

    PreviousNext: Tests That Can Fail

    Up next

    Up nextTests That Can Fail

    Sign in to save progress

    Practice this lessonReport an error

    See also

    • How to Use This Course
    • Reading Paths
    • Quick Start: Your First Green Build