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On Test Generation through Programming in UDITA

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Immediate Tracing

Valentin Aebi

This semester project report describes a prototype tracing tool that records the behavior of a Java program during its execution. It explains the two methods that were attempted to implement the tool, one using the Java debug interface, which gave poor res ...

2023

Discover deeper bugs with dynamic symbolic execution and coverage-based fuzz testing

George Candea, Vitaly Chipounov, Bin Zhang, Chao Feng

Coverage-based fuzz testing and dynamic symbolic execution are both popular program testing techniques. However, on their own, both techniques suffer from scalability problems when considering the complexity of modern software. Hybrid testing methods attem ...

INST ENGINEERING TECHNOLOGY-IET2018

Correct Transformation of High-Level Models into Time-Triggered Implementations

Simon Bliudze

A number of component-based frameworks have been proposed to tackle the complexity of the design of concurrent software and systems and, in particular, to allow modelling and simulation of critical embedded applications. Such design frameworks usually prov ...

2016

Search Techniques for Code Generation

Tihomir Gvero

This dissertation explores techniques that synthesize and generate program fragments and test inputs. The main goal of these techniques is to improve and support automation in program synthesis and test input generation. This is important because performin ...

EPFL2015

Synthesizing Java Expressions from Free-Form Queries

Viktor Kuncak, Tihomir Gvero

We present a new code assistance tool for integrated development environments. Our system accepts as input free-form queries containing a mixture of English and Java, and produces Java code expressions that take the query into account and respect syntax, t ...

Assoc Computing Machinery2015

On Lock-Free Work-stealing Iterators for Parallel Data Structures

Martin Odersky, Aleksandar Prokopec, Dmytro Petrashko

With the rise of multicores, there is a trend of supporting data-parallel collection operations in general purpose programming languages. These operations are highly parametric, incurring abstraction performance penalties. Furthermore, data-parallel operat ...

2014

Memory Power Optimization of Java-Based Embedded Systems Exploiting Garbage Collection Information

David Atienza Alonso

Nowadays, Java is used in all types of embedded devices. For these memory-constrained systems, the automatic dynamicmemorymanager (Garbage Collector or GC) has been always a key factor in terms of the Java Virtual Machine (JVM) performance. Moreover, in cu ...

Elsevier2012

Efficient State Merging in Symbolic Execution

George Candea, Johannes Kinder, Volodymyr Kuznetsov, Stefan Bucur

Symbolic execution has proven to be a practical technique for building automated test case generation and bug finding tools. Nevertheless, due to state explosion, these tools still struggle to achieve scalability. Given a program, one way to reduce the num ...

ACM2012

Efficient State Merging in Symbolic Execution

George Candea, Johannes Kinder, Volodymyr Kuznetsov, Stefan Bucur

Assoc Computing Machinery2012

Debugging by lastChange

Claude Petitpierre, Salman Mirghasemi

Developers often seek the origins of wrong values they see in their debugger. Their search must be backwards in time: the code causing the wrong value executed before the wrong value appeared. Searching with breakpoint- or log- based debuggers demands pers ...

2011