Edmund Clarke, 2007 Winner of the Turing Award, Dies of Covid-19

"Edmund M. Clarke, the FORE Systems Professor of Computer Science Emeritus at Carnegie Mellon University, has died of Covid-19," writes Slashdot reader McGruber. From the Pittsburgh Post-Gazette: Professor Clarke was best known for his work in model checking, an automated method for detecting design errors in computer hardware and software. CMU president Farnam Jahanian said the world had "lost a giant in computer science" with Mr. Clarke's death. "Ed's pioneering work in model checking applied formal computational methods to the ultimate challenge: computers checking their own correctness," Mr. Jahanian said in a statement. "As systems become ever more complex, we are just beginning to see the wide-reaching and long-term benefits of Ed's insights, which will continue to inspire researchers and practitioners for years to come." In the early 1980s, Mr. Clarke and his Harvard University graduate student, E. Allen Emerson — as well as Joseph Sifakis of the University of Grenoble, who was working separately — developed model checking, which has helped to improve the reliability of complex computer chips, systems and networks. For their work, the Association for Computing Machinery gave the three scientists the prestigious A.M. Turing Award — computer science's Nobel Prize — in 2007. Mr. Clark's citation on the Turing Award website said Microsoft and Intel and other companies use model checking to verify designs for computer networks and software. "It is becoming particularly important in the verification of software designed for recent generations of integrated circuits, which feature multiple processors running simultaneously," the citation page said. "Model checking has substantially improved the reliability and safety of the systems upon which modern life depends."

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