[Club2] Invitation: Efficient Verified (UN)SAT Certificate Checking @ Wed Jul 26, 2017 14:00 - 15:00 (CEST) (club2 at mailbroy.informatik.tu-muenchen.de)

[julianbrunner at gmail.com]

You have been invited to the following event.

Title: Efficient Verified (UN)SAT Certificate Checking
Speaker: Peter Lammich
Type: CADE rehearsal talk
Abstract: We present an efficient formally verified checker for  
satisfiability and unsatisfiability certificates for Boolean formulas in  
conjunctive normal form. It utilizes a two phase approach: Starting from a  
DRAT certificate, the unverified generator computes an enriched  
certificate, which is checked against the original formula by the verified  
checker. Using the Isabelle/HOL Refinement Framework, we verify the actual  
implementation of the checker, specifying the semantics of the formula down  
to the integer sequence that represents it. On a realistic benchmark suite  
drawn from the 2016 SAT competition, our approach is more than two times  
faster than the unverified standard tool drat-trim. Additionally, we  
implemented a multi-threaded version of the generator, which further  
reduces the runtime.
When: Wed Jul 26, 2017 14:00 – 15:00 Berlin
Where: MI 00.09.038 (Turing)
Calendar: club2 at mailbroy.informatik.tu-muenchen.de
Who:
     * Julian Brunner - creator
     * club2 at mailbroy.informatik.tu-muenchen.de

Event details:  
https://www.google.com/calendar/event?action=VIEW&eid=bzg1a2FvYmR0aGZ0NzcxaWhjM2xscDdlcXMgY2x1YjJAbWFpbGJyb3kuaW5mb3JtYXRpay50dS1tdWVuY2hlbi5kZQ&tok=NTIjc2U2ZWJlM3RvZmY0Y2g1bm11bmlibTVtOThAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbWUzNDgyNTZkMmQxNGVhMmJhZGU2NjJkN2JkZjQ4N2M2NjQ2Yzk4Nzk&ctz=Europe/Berlin&hl=en

Invitation from Google Calendar: https://www.google.com/calendar/

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