gillian

_layouts/home.html

@@ -6,7 +6,7 @@ layout: default
     {{ content }}
   </div>
   {% assign research_pages = site.pages | where_exp: 'page', 'page.url contains "/research/"'%}
-  {% for item in research_pages reversed %}
+  {% for item in research_pages %}
   <a class="btn btn-primary btn-lg" href="{{ item.url }}">{{ item.title }}</a>
   {% endfor %}
 </div>

_people/ayoun.md

@@ -7,15 +7,15 @@ email: s.ayoun17@imperial.ac.uk
 github:  https://github.com/Giltho/
 alumnus: false
 projects:
-  - web
+  - gillian
   - moc
 ---
-Sacha Ayoun is a PhD student at the Department of Computing at Imperial, under 
-the supervision of Professor Philippa Gardner. During his undergraduate 2017, 
-he worked at the [French Alternative and Atomic Energy Commission 
-(CEA)](http://www.cea.fr/english) as a researcher-engineer intern. 
-His goal was to improve the Frame-C abstract interpreter to better handle 
-file descriptors. In 2018 he completed his Supelec Engineer Diploma 
-at [CentraleSupelec](http://www.centralesupelec.fr/) 
-as well as his MSc in Advanced Computing at Imperial.  His PhD will be focused 
+Sacha Ayoun is a PhD student at the Department of Computing at Imperial, under
+the supervision of Professor Philippa Gardner. During his undergraduate 2017,
+he worked at the [French Alternative and Atomic Energy Commission
+(CEA)](http://www.cea.fr/english) as a researcher-engineer intern.
+His goal was to improve the Frame-C abstract interpreter to better handle
+file descriptors. In 2018 he completed his Supelec Engineer Diploma
+at [CentraleSupelec](http://www.centralesupelec.fr/)
+as well as his MSc in Advanced Computing at Imperial.  His PhD will be focused
 on JavaScript Verification using separation logic.
\ No newline at end of file

_people/fragoso-santos.md

@@ -10,8 +10,9 @@ projects:
   - web
   - sl
   - infer
+  - gillian
 ---
 
-José joined the group as a Research Associate in 2015, working on 
-program analysis and JavaScript Verification. He is now an Assistant Professor 
+José joined the group as a Research Associate in 2015, working on
+program analysis and JavaScript Verification. He is now an Assistant Professor
 at the Instituto Superior Técnico, Lisbon, Portugal.
\ No newline at end of file

_people/gardner.md

@@ -11,24 +11,25 @@ projects:
   - sl
   - moc
   - infer
+  - gillian
 ---
 Philippa Gardner is a professor in the [Department of Computing](https://www.doc.ic.ac.uk/) at [Imperial College London](https://www.imperial.ac.uk/)
 and has a UK Research and Innovation [Established Fellowship](https://gtr.ukri.org/projects?ref=EP%2FR034567%2F1) from 2018-2023.
-Her research focusses on program specification and verification. In particular, 
-her group is credited with bringing logical abstraction and logical atomicity to 
-modern concurrent separation logics, and is currently developing the Gillian 
-platform for building symbolic  analysis tools for real-world programming languages 
-such as C and JavaScript, which unifies classical symbolic execution, semi-automatic 
-verification based on separation logic, and automatic compositional testing based 
+Her research focusses on program specification and verification. In particular,
+her group is credited with bringing logical abstraction and logical atomicity to
+modern concurrent separation logics, and is currently developing the Gillian
+platform for building symbolic  analysis tools for real-world programming languages
+such as C and JavaScript, which unifies classical symbolic execution, semi-automatic
+verification based on separation logic, and automatic compositional testing based
 on bi-abduction.
 
-Gardner completed her PhD thesis, supervised by Professor Gordon Plotkin FRS at 
-Edinburgh in 1992 and held five years of fellowships at Edinburgh. She moved to 
-Cambridge in 1998 on an EPSRC Advanced Fellowship, hosted by Professor Robin Milner FRS. 
-She obtained a lectureship at Imperial in 2001, and became professor in 2009. 
-She held a Microsoft Research Cambridge/Royal Academy of Engineering Senior 
-Fellowship at Imperial, 2005-2009. 
+Gardner completed her PhD thesis, supervised by Professor Gordon Plotkin FRS at
+Edinburgh in 1992 and held five years of fellowships at Edinburgh. She moved to
+Cambridge in 1998 on an EPSRC Advanced Fellowship, hosted by Professor Robin Milner FRS.
+She obtained a lectureship at Imperial in 2001, and became professor in 2009.
+She held a Microsoft Research Cambridge/Royal Academy of Engineering Senior
+Fellowship at Imperial, 2005-2009.
 
-Philippa directs the [Research Institute on Verified Trustworthy Software Systems (VeTSS)](https://vetss.org.uk/), 
-funded by EPSRC and NCSC, 2017-2022. She is an organiser 
+Philippa directs the [Research Institute on Verified Trustworthy Software Systems (VeTSS)](https://vetss.org.uk/),
+funded by EPSRC and NCSC, 2017-2022. She is an organiser
 of the [Isaac Newton Institute six-week summer programme on `Verified Software', 2020](http://www.newton.ac.uk/event/vso).
\ No newline at end of file

_people/maksimovic.md

@@ -11,8 +11,9 @@ projects:
   - web
   - moc
   - sl
+  - gillian
 ---
 
-Petar Maksimović is a Research Fellow with the group and the Academic Program Manager for the [Research Institute on Verified Trustworthy Software Systems (VeTSS)](https://vetss.org.uk/). 
+Petar Maksimović is a Research Fellow with the group and the Academic Program Manager for the [Research Institute on Verified Trustworthy Software Systems (VeTSS)](https://vetss.org.uk/).
 
 He also holds the position of Research Assistant Professor at the Mathematical Institute of the Serbian Academy of Sciences and Arts, Belgrade.
\ No newline at end of file

publications @ 2b4da902

-Subproject commit 407bb7cd107cb8a9ef7148b4bb51b98bb17a6080
+Subproject commit 2b4da9020b01c42f46387f90ad6a4a18333d15c5

research/gillian.md

+---
+title: Gillian
+project_id: gillian
+menu: true
+parent_menu: Research
+menu_order: 4
+sub_menu_order: 2
+---
+
+Gillian is a multi-language platform for the development
+of compositional symbolic analysis tools. Gillian currently
+supports three flavours of analysis: whole-program symbolic
+testing, full verification based on separation logic, and
+automatic compositional testing based on bi-abduction.
+These analysis are, for the first time, unified in a
+common symbolic execution engine.
+
+#### GIL
+
+At the core of Gillian is GIL, a simple goto intermediate
+language that is parametric on the basic actions of the
+memory model of the target language (TL); that is, the ways
+in which TL-programs fundamentally interact
+with their memories.
+
+#### Correctness
+
+The symbolic execution of Gillian is fully formalised, with
+the implementation closely following the formalisation.
+The correctness results are, for the first time, stated
+and proven parametrically, independently of the TL.
+This has been made possible by a novel concept of restriction,
+which generalises path conditions of classical symbolic execution.
+
+#### Instantiations
+
+In order to instantiate Gillian to a new target language,
+the tool developer has to provide:
+- a trusted, memory-preserving compiler from the TL to GIL instantiated with the TL basic actions;
+- an OCaml implementation of the concrete and symbolic memory models of the TL; and
+- for the meta-theory, proofs for only two lemmas on the TL basic actions.
+
+So far, we have instantiated Gillian to JavaScript and C.
+
+#### Publications
+
+We have recently published the first paper on Gillian at PLDI'20 (see below), which
+introduces the principles of Gillian, its core symbolic execution, and its symbolic testing.
\ No newline at end of file

research/javascript.md

 ---
-title: JavaScript
+title: Web Programs
 project_id: web
 menu: true
 parent_menu: Research
 menu_order: 4
-sub_menu_order: 2
+sub_menu_order: 3
 ---
 
 We study the mechanised specification of the JavaScript language
@@ -31,7 +31,7 @@ We have developed a principled compiler from JavaScript (ECMAScript 5
 strict) to a small intermediate language JSIL, which has a simpler
 operational semantics and is better suited to program verification.
 The compiler has been substantially tested using the Test262 test
-suite and it comes with a hand-proof of translation correctness 
+suite and it comes with a hand-proof of translation correctness
 for a fragment of the language. We will use JSIL to develop JSVerify - a
 verification tool for JavaScript. Daiva Naudžiūnienė will
 this year hold internships at Amazon and Facebook  to use