Cute, a concolic unit testing engine for c and java, is a tool to systematically and automatically test sequential c programs including pointers and concurrent java programs. Symbolic execution is used in conjunction with an automated theorem prover or constraint solver based. Cutepdf convert to pdf for free, free pdf utilities. Pdf cute, a concolic unit testing engine for c and java, is a tool to systematically and automatically test sequential c. Choose cutepdf writer as the printer in the print dialog box, and click print. The entry function may contain pointer arguments, in which case the inputs to the unit are memory graphs. Cute, a concolic unit testing engine for c and java, is a tool to systematically and automatically test sequential c programs in. Hybrid concolic testing department of computer science. For a small fee you can get the industrys best online privacy or publicly promote your presentations and slide shows with top rankings. Concolic testing heapmanipulating programs technical report.
Dart cute full name directed automated random testing concolic unit testing engine published date jun. Fixes several bugs in cevelop and cute this is the first 64bitonly release since the underlying eclipse platform dropped 32bit support eclipse 201812 4. In section 3, we introduce the running example of this paper. Because of this, cute can detect complex arithmetic and pointer errors. It combines an alternating variable hill climb with a set of constraint solving rules for pointer inputs. Offensivecon18 vitaly nikolenko concolic testing for. Our algorithm generates test inputs automatically by interleaving random testing until saturation with bounded exhaustive symbolic exploration of program points. In those cases, symbolic execution degrades gracefully by leveraging concrete values into a form of partial symbolic execution.
A concolic testing strategy is a function which decides when to apply random testing or symbolic execution, and if it is. To run jcute on a 32bit system, download and unzip the binary distribution. Crest works by inserting instrumentation code using cil into a target program to perform symbolic execution concurrently with the concrete execution. Symbolic execution for software testing in practice. Jonathan salwan software testing and concolic execution. Concolic testing koushik sen university of california, berkeley joint work with gul agha, patrice godefroid, nils klarlund, rupak majumdar, darko marinov used and adapted by jonathan aldrich, with permission, for 1735517655 program analysis. The current work develops a method to represent and track. Scalable automated methods for software reliability. Academic and industrial conference practice and research techniques 95 104 abstract whilst there is much evidence that both concolic and search based testing can outperform random testing, there has been little work demonstrating the effectiveness of either technique with complete real world software applications. Handling dynamic data structures in search based testing 2008. Test input generation for java containers using state matching. In unit testing, a program is decomposed into units which are collections of functions.
Concolic testing heapmanipulating programs technical report long h. The result is a lightweight and efficient method, as shown in the results from a case study, which compares the method to cute, a concolic unit testing tool. The tester or the testing tool is only interested in the input and output. Cute 6,16 is an automated test case generation tool that uses concolic testing. Automated unit testing of large industrial embedded software. Concolic unit testing and explicit path modelchecking tools tools paper koushik sen and gul agha university of illinois at urbanachampaign, usa. Automated unit testing of large industrial embedded software using concolic testing. We have implemented hybrid concolic testing on top of the cute tool for concolic testing 25 and applied it to achieve high branch coverage for c programs. In proceedings of the 10th european software engineering conference held jointly with th acm sigsoft international symposium on foundations of software engineering, 2005 3 julian schutte, rafael fedler, dennis titze. We present hybrid concolic testing, an algorithm that interleaves random testing with concolic execution to obtain both a deep and a wide exploration of program state space. It is shown to be more costeffective than random testing or symbolic execution sometimes.
Cute combines concrete and symbolic execution in a way that avoids redundant test cases as well as false. A concolic unit testing engine for c university of. Software testing and concolic execution shellstorm. In unit testing, a program is decomposed into units which are. The link cute and jcute that goes to cute appears to be broken 144. The generated symbolic constraints are solved using yices to generate input that drive the test execution down new, unexplored. Cute s speed is t for unit testing, but cute does not support formal speci cations. The paper addresses the problem of automating unit testing with memory graphs as inputs.
The approach used builds on previous work combining symbolic and concrete execution, and more specifically, using such a combination to generate test inputs to explore all feasible execution paths. Due to the combination of concrete and symbolic execution, dynamic symbolic execution is also sometimes referred to as concolic testing. Esecfse05 proceedings of the joint 10th european software engineering conference esec and th acm sigsoft symposium on the foundations of software engineering fse. Concolic testing rst generates random values for primitive inputs and the null value for pointer inputs. I completely understand the way concolic testing works. These tools dart and cute, exe applied concolic testing to unit testing of c programs. The package contains a collection of test problems, along with fortran 77, fortran 9095 and matlab tools intended to help developers design, compare and improve new and existing solvers. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Concolic testing is a hybrid software verification technique that performs symbolic execution. To run jcute on a 32bit system, simply download and unzip the binary distribution from the jcute homepage. Testing with manually generated test cases is the primary technique used in industry to improve reliability of softwarein fact, such testing is reported to account for over half of the typical cost of software development. I completely understand the way concolic testing works but i am not able to implement it at system level. The remainder of this paper will use the terms concolic testing and dynamic symbolic execution interchangeably.
Concolic testing process this section presents an overview of the original nondistributed concolic testing process that performs static instrumentation of a target program to extract symbolic path formulas. Crest uses cil to instrument c programs for testing. To see the statistics about branch coverage and runtime execute. A program is decomposed into units, where each unit is a collection of functions, and the units are independently. I have been given a project to create a concolic testing framework for testing c programs. Mar 19, 2018 offensivecon18 vitaly nikolenko concolic testing for kernel fuzzing and vulnerability discovery. Cute combines concrete and symbolic execution in a way that avoids redundant test. A concolic unit testing engine for c bibsonomy whether your application is business, howto, education, medicine, school, church, sales, marketing, online training or just for fun, powershow. Automated unit testing supports high quality of program code, even under inevitable change and refactoring. Can we make a concolic testing tool that 1 avoids path explosion and. Now includes the form filler for free oneoff license fee. Concolic testing a portmanteau of concrete and symbolic is a hybrid software verification technique that performs symbolic execution, a classical technique that treats program variables as symbolic variables, along a concrete execution testing on particular inputs path. In the graphical user interface, try selecting the directory src and the java program dtestsdexample1. It thus combines the ability of random search to reach deep.
Enter a new file name for your pdf and select options. Practical concolic testing techniques for cots operating systems su yong kim, sangho lee, insu yun, wen xu, byoungyoung lee, youngtae yun, taesoo kim usenix annual technical conference july 14, 2017 the affiliated institute of etri georgia institute of technology purdue university. A concolic unit testing engine for c, by koushik sen, darko marinov, and gul agha, further extended the idea to data structures, and first coined the term concolic testing. An empirical investigation into branch coverage for c. Finally, cute, a tool implementing the method is described together with the results of applying cute to realworld examples of c code. Related work dart cute full name directed automated random testing concolic unit testing engine published date jun. Cute combines concrete and symbolic execution in a way that avoids redundant test cases as well as false warnings. Industrial application of concolic testing on embedded. As a side effect, unit tested code often has a better structure. Fast and sound random generation for automated testing and aug 30, 2009. I will describe concolic testing, a systematic and efficient method which combines random and symbolic testing. Concolic testing for functional languages aggelos giantsios 1nikolaos papaspyrou konstantinos sagonas.
Automated analysis of industrial embedded software. Cute a concolic unit testing engine and jcute cute for java 4244 extends dart to handle multithreaded programs that manipulates dynamic data structures using pointer operations. A part of unit can be tested by generating inputs for a single entry function. Developed by koushik sen at the university of illinois at urbanachampaign in 2005, the concept of concolic testing originated with the dart system and the term concolic first occurred in cute. The idea is to look at the program or function which is to be tested as a black box. Esecfse05 proceedings of the joint 10th european software engineering conference. About me software testing bugs hunting concolic execution ir and constraints solver proof of concept end goal plan taint syscall entries spread the taints constraints solve constraints with z3 goal. Cute, a concolic unit testing engine for c and java, is a tool to systematically and automatically test. Java developers are used to unit testing because of junit and its tight integration into ides like eclipse. Introduction unit testing is a method for modular testing of a programs functional behavior. Cuter is a versatile testing environment for optimization and linear algebra solvers.
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