# Edmund M. Clarke

> American computer scientist (1945–2020)

**Wikidata**: [Q92819](https://www.wikidata.org/wiki/Q92819)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Edmund_M._Clarke)  
**Source**: https://4ort.xyz/entity/edmund-m-clarke

## Summary
Edmund M. Clarke was an American computer scientist best known for his pioneering work in formal verification and model checking, which revolutionized the detection of errors in hardware and software systems. He co-developed symbolic model checking, a method widely adopted in the computer hardware industry, and received the Turing Award in 2007 for these contributions.

## Biography
- **Born**: July 27, 1945, in Newport News, Virginia, USA
- **Nationality**: United States
- **Education**:
  - Bachelor of Arts in Mathematics, University of Virginia (1967)
  - Master of Arts in Mathematics, Duke University (1968)
  - Doctor of Philosophy in Computer Science, Cornell University (1976)
- **Known for**: Developing model checking, a technique for verifying the correctness of hardware and software systems
- **Employer(s)**: Duke University (1976), Harvard University (1978), Cornell University (1982), Carnegie Mellon University
- **Field(s)**: Computer science, informatics, formal verification

## Contributions
Edmund M. Clarke co-invented **symbolic model checking**, a method for formally verifying system designs, which became foundational in hardware and software verification. His work on **model checking** led to the creation of tools like **SMV (Symbolic Model Verifier)**, which are widely used in industry to detect errors in complex systems. Clarke's research also advanced **temporal logic** and **automated reasoning**, enabling more reliable computing systems. He published influential papers, including the 1981 work introducing model checking, and mentored numerous Ph.D. students who became leaders in the field. His contributions earned him the **Turing Award (2007)**, the **Paris Kanellakis Award (1998)**, and the **Bower Award (2014)**.

## FAQs
### Q: What is Edmund M. Clarke best known for?
A: He is best known for co-developing **model checking**, a technique for verifying the correctness of hardware and software systems, which earned him the Turing Award in 2007.

### Q: Where did Edmund M. Clarke work?
A: He was affiliated with **Duke University, Harvard University, Cornell University, and Carnegie Mellon University**, where he spent much of his career.

### Q: What awards did Edmund M. Clarke receive?
A: He received the **Turing Award (2007)**, **Paris Kanellakis Award (1998)**, **Bower Award (2014)**, and was an **ACM Fellow (1998)** and **IEEE Fellow**.

### Q: What was Edmund M. Clarke's cause of death?
A: He died on **December 22, 2020**, from **COVID-19** in Pittsburgh, Pennsylvania.

### Q: Who were Edmund M. Clarke's notable students?
A: His Ph.D. students include **E. Allen Emerson (Turing Award co-recipient)**, **David L. Dill**, **Kenneth L. McMillan**, and **Bhubaneswar Mishra**.

## Why They Matter
Edmund M. Clarke's work on **model checking** transformed the field of formal verification, making it possible to systematically detect errors in complex hardware and software systems. His techniques are now standard in industries like semiconductor design and aerospace, where reliability is critical. Clarke's research also influenced **automated theorem proving** and **temporal logic**, shaping modern computer science. His mentorship of future leaders, including Turing Award winner E. Allen Emerson, extended his impact across generations of researchers.

## Notable For
- Co-inventor of **symbolic model checking**, a foundational technique in formal verification.
- Recipient of the **Turing Award (2007)** for his contributions to model checking.
- Developed **SMV (Symbolic Model Verifier)**, a widely used tool in hardware verification.
- Mentored over a dozen Ph.D. students who became prominent computer scientists.
- Member of the **National Academy of Engineering (2005)** and **American Academy of Arts and Sciences (2011)**.

## Body
### Early Life and Education
Edmund M. Clarke was born on **July 27, 1945**, in **Newport News, Virginia**. He earned a **Bachelor of Arts in Mathematics** from the **University of Virginia (1967)** and a **Master of Arts in Mathematics** from **Duke University (1968)**. He completed his **Ph.D. in Computer Science** at **Cornell University (1976)**, advised by **Robert Lee Constable**.

### Career and Research
Clarke began his academic career at **Duke University (1976)** before moving to **Harvard University (1978)** and **Cornell University (1982)**. He spent most of his career at **Carnegie Mellon University**, where he became a leading figure in **formal verification**.

His most significant contribution was the development of **model checking**, a method for automatically verifying finite-state systems. In **1981**, he and **E. Allen Emerson** introduced **symbolic model checking**, which uses **binary decision diagrams (BDDs)** to efficiently check system properties. This work led to the creation of the **SMV (Symbolic Model Verifier)** tool, widely adopted in industry.

### Awards and Honors
- **Turing Award (2007)**: Shared with **E. Allen Emerson** and **Joseph Sifakis** for developing model checking.
- **Paris Kanellakis Award (1998)**: For the invention of symbolic model checking.
- **Bower Award (2014)**: For achievements in computer science.
- **ACM Fellow (1998)** and **IEEE Fellow**.
- **National Academy of Engineering (2005)** and **American Academy of Arts and Sciences (2011)** member.

### Legacy
Clarke's work laid the foundation for modern **hardware and software verification**, influencing industries from semiconductors to aerospace. His students, including **E. Allen Emerson** and **Kenneth L. McMillan**, continued his legacy in formal methods. He passed away on **December 22, 2020**, from **COVID-19** in **Pittsburgh, Pennsylvania**.

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## References

1. Integrated Authority File
2. [Source](https://www.cs.cmu.edu/~emc/bio.html)
3. [Source](https://awards.acm.org/award-recipients/clarke_1167964)
4. [Source](https://awards.acm.org/kanellakis/award-recipients)
5. [Source](https://cadeinc.org/Herbrand-Award)
6. [Source](https://www.computer.org/volunteering/awards/goode)
7. [Source](https://www.fi.edu/laureates/edmund-m-clarke)
8. Mathematics Genealogy Project
9. International Standard Name Identifier
10. Virtual International Authority File
11. CiNii Research
12. [Source](https://www.amacad.org/multimedia/pdfs/publications/bookofmembers/ChapterC.pdf)
13. [Source](https://www.nae.edu/MembersSection/MemberDirectory/30873.aspx)
14. [Source](https://awards.acm.org/fellows/award-recipients)
15. [Edmund Clarke Pioneered Methods For Detecting Software, Hardware Errors](https://www.cmu.edu/news/stories/archives/2020/december/obituary-ed-clarke.html)
16. SNAC
17. Freebase Data Dumps. 2013
18. [Source](http://wwwp.oakland.edu/enp/erdpaths/)
19. National Library of Israel Names and Subjects Authority File