Personne

Viktor Kuncak

Publications associées (81)

Interpolation for Synthesis on Unbounded Domains

Synthesis procedures compile relational specifications into functions. In addition to bounded domains, synthesis procedures are applicable to domains such as mathematical integers, where the domain and range of relations and synthesized code is unbounded. ...

Ieee2013

An overview of the Leon verification system: verification by translation to recursive functions

Philippe Paul Henri Suter, Régis William Blanc, Etienne Kneuss, Viktor Kuncak

We present the Leon verification system for a subset of the Scala programming language. Along with several functional features of Scala, Leon supports imperative constructs such as mutations and loops, using a translation into recursive functional form. Bo ...

2013

Game Programming by Demonstration

Viktor Kuncak, Mikaël Mayer

The increasing adoption of smartphones and tablets has provided tens of millions of users with substantial resources for computation, communication and sensing. The availability of these resources has a huge potential to positively transform our society an ...

2013

Effect Analysis for Programs with Callbacks

Philippe Paul Henri Suter, Etienne Kneuss, Viktor Kuncak

We introduce a precise interprocedural effect analysis for programs with mutable state, dynamic object allocation, and dynamic dispatch. Our analysis is precise even in the presence of dynamic dispatch where the context-insensitive estimate on the number o ...

Springer Berlin Heidelberg2013

Synthesis of Fixed-Point Programs

Viktor Kuncak, Indranil Saha, Eva Darulova

Several problems in the implementations of control systems, signal-processing systems, and scientific computing systems reduce to compiling a polynomial expression over the reals into an imperative program using fixed-point arithmetic. Fixed-point arithmet ...

2013

Complete Completion using Types and Weights

Viktor Kuncak, Ruzica Piskac, Tihomir Gvero, Ivan Kuraj

Developing modern software typically involves composing functionality from existing libraries. This task is difficult because libraries may expose many methods to the developer. To help developers in such scenarios, we present a technique that synthesizes ...

ACM2013

A Verification Toolkit for Numerical Transition Systems

Viktor Kuncak, Hossein Hojjat

This paper presents a publicly available toolkit and a benchmark suite for rigorous verification of Integer Numerical Transition Systems (INTS), which can be viewed as control-flow graphs whose edges are annotated by Presburger arithmetic formulas. We pres ...

2012

Accelerating Interpolants

Viktor Kuncak, Hossein Hojjat

We present Counterexample-Guided Accelerated Abstraction Refinement (CEGAAR), a new algorithm for verifying infinite-state transition systems. CEGAAR combines interpolation-based predicate discovery in counterexample guided predicate abstraction with accel ...

2012

Speculative Linearizability

Rachid Guerraoui, Viktor Kuncak, Giuliano Losa

Linearizability is a key design methodology for reasoning about implementations of concurrent abstract data types in both shared memory and message passing systems. It provides the illusion that operations execute sequentially and fault-free, despite the a ...

Assoc Computing Machinery2012

Constraints as Control

Philippe Paul Henri Suter, Viktor Kuncak

We present an extension of Scala that supports constraint programming over bounded and unbounded domains. The resulting language, Kaplan, provides the benefits of constraint programming while preserving the existing features of Scala. Kaplan integrates con ...

2012

Software Synthesis Procedures

Philippe Paul Henri Suter, Viktor Kuncak, Ruzica Piskac, Mikaël Mayer

Automated synthesis of program fragments from specifications can make programs easier to write and easier to reason about. To integrate synthesis into programming languages, software synthesis algorithms should behave in a predictable way: they should succ ...

2012

Scala to the Power of Z3: Integrating SMT and Programming

Philippe Paul Henri Suter, Ali Sinan Köksal, Viktor Kuncak

2011

Towards Complete Reasoning about Axiomatic Specifications

Viktor Kuncak, Swen Jacobs

To support verification of expressive properties of functional programs, we consider algebraic style specifications that may relate multiple user-defined functions, and compare multiple invocations of a function for different arguments. We present decision ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2011

Sets with Cardinality Constraints in Satisfiability Modulo Theories

Philippe Paul Henri Suter, Robin Steiger, Viktor Kuncak

Boolean Algebra with Presburger Arithmetic (BAPA) is a decidable logic that can express constraints on sets of elements and their cardinalities. Problems from verification of complex properties of software often contain fragments that belong to quantifier- ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2011

Trustworthy Numerical Computation in Scala

Viktor Kuncak, Eva Darulova

Modern computing has adopted the floating point type as a default way to describe computations with real numbers. Thanks to dedicated hardware support, such computations are efficient on modern architectures. However, rigorous reasoning about the resulting ...

2011

Interactive Synthesis of Code Snippets

Viktor Kuncak, Ruzica Piskac, Tihomir Gvero

2011

Scala to the Power of Z3: Integrating SMT and Programming

Philippe Paul Henri Suter, Viktor Kuncak

We describe a system that integrates the SMT solver Z3 with the Scala programming language. The system supports the use of the SMT solver for checking satisfiability, unsatisfiability, as well as solution enumeration. The embedding of formula trees into Sc ...

Springer-Verlag Berlin2011

Phantm: PHP analyzer for type mismatch

Philippe Paul Henri Suter, Etienne Kneuss, Viktor Kuncak

We present Phantm, a static analyzer that uses a flow-sensitive analysis to detect type errors in PHP applications. Phantm can infer types for nested arrays, and can leverage runtime information and procedure summaries for more precise results. Phantm foun ...

2010

MUNCH - Automated Reasoner for Sets and Multisets

Viktor Kuncak, Ruzica Piskac

This system description provides an overview of the MUNCH reasoner for sets and multisets. MUNCH takes as the input a formula in a logic that supports expressions about sets, multisets, and integers. Constraints over collections and integers are connected ...

Springer2010

Building a Calculus of Data Structures

Philippe Paul Henri Suter, Viktor Kuncak, Ruzica Piskac

Techniques such as verification condition generation, predicate abstraction, and expressive type systems reduce software verification to proving formulas in expressive logics. Programs and their specifications often make use of data structures such as sets ...

Springer2010