Chuck Liang visits for a week

Chuck Liang visited the team during the week of 16 December.  He gave a talk on Wednesday 18 Dec.

PhD defense of Mahfuza Farooque

Mahfuza Farooque succeesfully defended her PhD yesterday (19 Dec 2013). Her thesis is titled “Automated reasoning techniques in sequent calculus”.

Danko Ilik begins his postdoc in Parsifal

Danko Ilik starts a one year postdoc within the team.  He will be part of the ProofCert effort.


Internships for 2014 available

Members of Parsifal have posted internships for 2014 (M2 level).

PhD defense of Ivan Gazeau

Ivan Gazeau succeesfully defended his PhD yesterday (14 Oct 2013).  His thesis is titled “Safe Programming in finite precision: Controling the errors and information leaks”.  Ivan is in the process of packing up and moving to his next position as a PostDoc researcher at the University of Birmingham.

Accepted paper at CPP 2013

A paper by Alwen Tiu and Dale Miller titled Extracting Proofs from Tabled Proof Search has been accepted by the CPP 2013 conference and will be presented in Melbourne, Australia  in December 2013.

Abella 2.0.0 released

After over a year of development, Abella 2.0.0 has been released! The new release removes all the arbitrary restrictions on the specification logic, which is now fully higher-order. As a result, this version of Abella allows backchaining in specification contexts, and therefore also supports inductive specifications of dynamic extensions of programs. This example characterizing equivalence-upto-β via paths illustrates the use of reasoning on higher-order contexts.

Much of the development of this release has been done by Yuting Wang during his internship at Parsifal as part of the RAPT Associated Team. Other major contributors to this release include Kaustuv Chaudhuri (Parsifal) and Andrew Gacek (Rockwell Collins, USA).

For the logicians, the new extensions of Abella are documented in the following paper to appear at PPDP 2013 later this year:

Accepted paper at LFMTP 2013

A paper by Mahfuza Farooque, Stéphane Graham-Lengrand, and Assia Mahboubi titled A bisimulation between DPLL(T) and a proof-search strategy for the focused sequent calculus has been accepted to LFMTP 2013 and will be presented at the workshop in Boston during September 2013.

Elaine Pimentel and Carlos Olarte visiting until 16 July

Prof. Elaine Pimentel (UFMG) and Prof. Carlos Olarte (Univ. Javeriana, Cali) are visiting Parsifal and Comète in June and July.

Chuck Liang and Gopalan Nadathur visit Parsifal in May

Prof. Chuck Liang (Hofstra) and Prof. Gopalan Nadathur (Univ. Minnesota) are visiting Parsifal during May and June. Chuck will be here until 15 June and Gopalan until 31 May.