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KLEE Symbolic Execution Engine

Home Page: http://klee.github.io/

License: Other

Shell 1.03% C 36.65% C++ 51.35% Python 3.14% LLVM 2.82% Emacs Lisp 0.09% SMT 0.01% CMake 3.76% Dockerfile 0.09% PHP 0.75% HTML 0.10% NASL 0.19%

klee's Introduction

KLEE Symbolic Virtual Machine

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KLEE is a symbolic virtual machine built on top of the LLVM compiler infrastructure. Currently, there are two primary components:

  1. The core symbolic virtual machine engine; this is responsible for executing LLVM bitcode modules with support for symbolic values. This is comprised of the code in lib/.

  2. A POSIX/Linux emulation layer oriented towards supporting uClibc, with additional support for making parts of the operating system environment symbolic.

Additionally, there is a simple library for replaying computed inputs on native code (for closed programs). There is also a more complicated infrastructure for replaying the inputs generated for the POSIX/Linux emulation layer, which handles running native programs in an environment that matches a computed test input, including setting up files, pipes, environment variables, and passing command line arguments.

For further information, see the webpage.

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