An empirical study and the underlying infrastructure for analyzing code,
test and coverage evolution in real software using both static and
A novel document recovery technique based on symbolic execution
that makes it possible to fix broken documents without any prior
knowledge of the file format.
Combines dynamic symbolic execution with several novel
heuristics based on program analysis to automatically and comprehensively
test code patches.
A set of semantic-preserving transformations that take advantage of
contextual information collected during symbolic execution to speedup
An effective symbolic execution based technique for crosschecking C
and OpenCL applications involving floating point. It has also been
An extension to KLEE that uses the metaSMT framework to add support
for multiple SMT solvers (Boolector, STP and Z3), and its evaluation
on 12 Coreutils applications.
A novel multi-version execution technique for surviving buggy software
updates, whose key insight is to run the new software version in
parallel with the old one.
A study of correctness of PDF documents and PDF document readers, based on
clustering errors emitted by the PDF readers and visual inconsistencies detection.
A symbolic execution-based technique for patch testing. The old and the new
version are run simultaneously in order to discover the introduced behavioural divergences.
A technique that combines symbolic execution with rule-based
specifications to find both low- and high-level bugs in network
A symbolic execution engine for the Boogie intermediate verification
language which provides modular components that can be reused in other
An NVX framework that combines selective binary rewriting with a novel
event-streaming architecture to significantly reduce performance
overhead and scale well with the number of versions.
A lightweight symbolic execution technique for improving existing test
suites by thoroughly checking for errors all sensitive operations
executed by the test suite.