# Certicoq

members of the CertiCoq project, this garbage collector is an intricate piece of code, and the author needed to reason about its various moving parts from a formal methods perspective. This discussion, spread out over Sections 3.1, 3.2, and 4.1, is the author’s work.

CertiCoq is a compiler for Gallina, the specification language of the Coq proof assistant.CertiCoq targets Clight, a subset of the C language that can be compiled with any C compiler, including the CompCert verified compiler. CertiCoq. This project is building an open compiler for the functional language at the core of the Coq proof assistant. Our goal is to make it possible to write high-level code within Coq, prove its correctness, and then extract machine-executable code that is provably correct and performs well relative to other high-level programming languages.

29.10.2020

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• CertiCoq is an optimizing compiler for Coq, implemented and verified in Coq. Automatic parallelization • Moore’s law: processor advances double speed every 18 months Certicoq: Compositional Verification in Practice . Programming Language Foundations. Dec 15 . Recommended Due Date for Projects (Reading Day) Dec 22 . Absolute Final Due Date for Projects (Last Day of Exams) Xia Nai Thesis.

## CertiCoq. Overview. CertiCoq is a compiler for Gallina, the specification language of the Coq proof assistant.CertiCoq targets Clight, a subset of the C language that can be compiled with any C compiler, including the CompCert verified compiler.

However, in practice, large programs are … CertiCoq (without recent changes) + proof generation (future work) The CertiCoq compiler consists of many diﬀerent phases, each deﬁned in Coq. It starts from the MetaCoq description of the term that is compiled, that is, a syntax tree of a Coq program in Coq itself, also often called a reiﬁed program. May: I gave a seminar on MetaCoq and CertiCoq at Nomadic Labs. April: submitted an extended version of our ITP'18 paper on The MetaCoq Project to JAR. February: I gave an introductory lecture on certified programming and proof assistants for the Master 1 of Computer Science at Paris 7.

### 11 Dec 2019 We present a verified version of this subtle type-and-proof erasure step, therefore enabling the verified extraction of a safe type-checker for Coq.

First, we develop a mathematical graph library that is general enough to reason about a wide variety of algorithms and expressive enough to describe the behavior of these algorithms in real machines. The 44th ACM SIGPLAN Symposium on Principles of Programming Languages (POPL 2017) is a forum for the discussion of all aspects of programming languages and programming systems. Both theoretical and experimental papers are welcome, on topics ranging from formal frameworks to experience reports.

This course will have a few weeks of introductory material on logic and proof in Coq, and then it will cover the LLVM-based and CertiCoq-based material that students (may) have seen in our compilers and OS “systems” courses.

CertiCoq comes with a machine-checked proof that ensures that the behavior of the target program will match the behavior of the verified source program. I will focus on my research on the design, implementation and verification of CertiCoq’s backend. The modular architecture of CertiCoq allows us to combine simple transformations, for the CertiCoq project [Anand et al.2017] (≈400 rather devilish lines of C). We proceed in three steps. First, we develop a mathematical graph library that is general enough to reason about a wide variety of algorithms and expressive enough to describe the behavior of these algorithms in real machines. CertiCoq: A veri ed compiler for Coq (Extended Abstract). Abhishek Anand, Andrew Appel, Greg Morrisett, Zoe Paraskevopoulou, Randy Pollack, Olivier Savary Belanger, Matthieu Sozeau, and Matthew Weaver.

The connection to CakeML allows us to individual Coq project; Exam. The basis of type theory. We use a course by Femke van Raamsdonk of the Free University Amsterdam. This will be taught by Freek CertiCoq [14] is a certified compiler from. Page 17. Gallina (Coq) to CompCert-C. CompCert [40] is one of the most mature certified C compiler which ensures that Dependently typed languages such as Coq are used to specify and prove functional correctness of source programs, but what we ultimately need are Coq [18] and Isabelle/HOL [3, 9]; the CertiCoq [1] team and Hupel & Nipkow [11] are working toward verified code generators for Coq and Isabelle/HOL respec-.

Making our Own Luck: A Language for Random Generators (Extended Abstract) . the CertiCoq compiler [Anand et al. 2017], an extraction pipeline from Coq to C. 1 All the phases of CertiCoqÐfrom Coq abstract-syntax trees to assembly languageÐare veriied for functional correctness, or in the process of being veriied. Our closure-conversion correctness proof composes with correctness proofs of the other phases.2 We demonstrate the generality and power of our techniques by integrating them into the Verified Software Toolchain and certifying the correctness of seven graph-manipulating programs written in CompCert C, including a 400-line generational garbage collector for the CertiCoq project. He is currently working on CertiCoq, a project which aims to build a proved-correct compiler for a dependently typed functional language.

If a second compiler, say clang, can compile the gcc sources and this gcc then recompiles itself bit-identical to the original, then gcc and clang would both have to be (mutually compatible) infected.

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### for the CertiCoq project [Anand et al. 2017](≈ 400 rather devilish lines of C). We proceed in three steps. First, we develop a mathematical graph library that is general enough to reason about a wide variety of algorithms and expressive enough to describe the behavior of these algorithms in real machines.

Absolute Final Due Date for Projects (Last Day of Exams) Before every class, the Coq (.v) and HTML versions of … The CertiCoq project aims to build a proven-correct compiler for dependently-typed, functional languages, such as Gallina—the core language of the Coq proof assistant.