Publications by Viktor Kuncak | EPFL Graph Search

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Succinct ordering and aggregation constraints in algebraic array theories

Viktor Kuncak, Rodrigo Raya

We discuss two extensions to a recently introduced theory of arrays, which are based on considerations coming from the model theory of power structures. First, we discuss how the ordering relation on the index set can be expressed succinctly by referring t ...

Elsevier Science Inc2024

Interpolation and Quantifiers in Ortholattices

Viktor Kuncak, Simon Guilloud, Sankalp Gambhir

We study quantifiers and interpolation properties in ortho- logic, a non-distributive weakening of classical logic that is sound for formula validity with respect to classical logic, yet has a quadratic-time decision procedure. We present a sequent-based p ...

2024

Interpolation and Quantifiers in Ortholattices

Viktor Kuncak, Simon Guilloud, Sankalp Gambhir

We study quantifiers and interpolation properties in orthologic, a non-distributive weakening of classical logic that is sound for formula validity with respect to classical logic, yet has a quadratic-time decision procedure. We present a sequent-based pro ...

Cham2024

Formal Autograding in a Classroom (Experience Report)

Viktor Kuncak, Mario Bucev, Dragana Milovancevic, Samuel Chassot

We report our experience in enhancing automated grading in a functional programming course using formal verification. In our approach, we deploy a verifier for Scala programs to check equivalences between student submissions and reference solutions. Conseq ...

2024

On Polynomial Algorithms for Normalizing Formulas

Viktor Kuncak, Simon Guilloud, Mario Bucev

We propose a new approach for normalization and simplification of logical formulas. Our approach is based on algorithms for lattice-like structures. Specifically, we present two efficient algorithms for computing a normal form and deciding the word problem ...

2022

Equivalence Checking for Orthocomplemented Bisemilattices in Log-Linear Time

Viktor Kuncak, Simon Guilloud

We present a quasilinear time algorithm to decide the word problem on a natural algebraic structures we call orthocomplemented bisemilattices, a subtheory of boolean algebra. We use as a base a variation of Hopcroft, Ullman and Aho algorithm for tree isomo ...

Springer2022

Zippy LL(1) Parsing with Derivatives

Viktor Kuncak, Romain Edelmann, Jad Hamza

In this paper, we present an efficient, functional, and formally verified parsing algorithm for LL(1) context-free expressions based on the concept of derivatives of formal languages. Parsing with derivatives is an elegant parsing technique, which, in the ...

ASSOC COMPUTING MACHINERY2020

Refutation-based synthesis in SMT

Viktor Kuncak, Andrew Joseph Reynolds

We introduce the first program synthesis engine implemented inside an SMT solver. We present an approach that extracts solution functions from unsatisfiability proofs of the negated form of synthesis conjectures. We also discuss novel counterexample-guided ...

SPRINGER2019

Viktor Kuncak

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Succinct ordering and aggregation constraints in algebraic array theories

Interpolation and Quantifiers in Ortholattices

Interpolation and Quantifiers in Ortholattices

Formal Autograding in a Classroom (Experience Report)

On Polynomial Algorithms for Normalizing Formulas

On Verified Scala for STIX File System Embedded Code using Stainless

Equivalence Checking for Orthocomplemented Bisemilattices in Log-Linear Time

On Proving and Disproving Equivalence of Functional Programming Assignments

Zippy LL(1) Parsing with Derivatives

Refutation-based synthesis in SMT

Succinct ordering and aggregation constraints in algebraic array theories

Interpolation and Quantifiers in Ortholattices

On Polynomial Algorithms for Normalizing Formulas

Formal Autograding in a Classroom (Experience Report)

Interpolation and Quantifiers in Ortholattices

On Verified Scala for STIX File System Embedded Code using Stainless

Zippy LL(1) Parsing with Derivatives

Equivalence Checking for Orthocomplemented Bisemilattices in Log-Linear Time

On Proving and Disproving Equivalence of Functional Programming Assignments

Refutation-based synthesis in SMT