Chuck Liang visited the team during the week of 16 December. He gave a talk on Wednesday 18 Dec.
Mahfuza Farooque succeesfully defended her PhD yesterday (19 Dec 2013). Her thesis is titled “Automated reasoning techniques in sequent calculus”.
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.
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:
- Y. Wang, K. Chaudhuri, A. Gacek, and G. Nadathur, Reasoning about Higher-Order Relational Specifications, to appear at PPDP 2013, September 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.