An Overview on Program Analysis Mooly Sagiv http://www.cs.tau.ac.il/~msagiv/courses/pa12-13.html Tel Aviv University 640-6706 Textbook: Principles of Program Analysis
Lemma 1: If a safe invariant can be expressed in terms of predicates in P then ... Lemma 2: For any guarded command c, prec( ') = prec( ) prec( ') prec ...
Victor Kuliamin Institute for System Programming Russian Academy of Sciences Moscow Modern verification tools Use basic services of component technologies Integrate a ...
Restrict the representation of transformers. covers all basic statements ... Abstract transformer tr operates pointwise. on individual access paths using trAP: ...
finite abstractions plus iterative refinement (FAIR) is more powerful than WAIL ... If WAIL succeeds in N iterations then FAIR will succeed in N iterations ...
Galois Connections (Insertions) Collecting semantics. The Soundness Theorem ... Odd/Even Abstract Interpretation {-2, 1, 5} {0,2} {2} {0} E. O. All concrete states ...
Automatic derivation of static properties which hold on every ... c = malloc (); if (b == c) printf('unexpected equality'); References outside array bounds ...
... power and memory consumption in addition to reducing execution time ... If the conditions are proved, the compilation is correct. Front End. Code Generation ...
... set of resulting abstract states is turned into a single abstract state, by ... shows how to improve precision. inference rules mimic the concrete semantics ...
without array bound checks (e.g. C), programs may be unsafe. ... precise disjunctive polyhedron abstract domain. with hulling and widening operators. ...
The impact of the A380 extends largely beyond the region. ... the machine may not accept larger numbers, and it truncates them. Thus some catastrophic errors, ...
On bounded model checking, abstract interpretation, interpolants, and induction. K. Rustan M. Leino. Microsoft Research, Redmond, WA, USA ... 'Induction' ...
An Overview on. Static Program Analysis. Instructor: Mooly Sagiv ... A chapter on program analysis by Jones and Nielson. A note on program analysis by Alex Aiken ...
http://www.cs.kuleuven.ac.be/conference/EuroSys2006/papers ... { if (s==Unlocked) abort; else s = Unlocked; Locking Rule in SLIC. prog. P' prog. P. SLIC rule ...
Iterative Program Analysis Mooly Sagiv http://www.cs.tau.ac.il/~msagiv/courses/pa.html Tel Aviv University 640-6706 Textbook: Principles of Program Analysis
Title: Abstract Interpretation with Applications to Timing Validation Subject: WCET, Abstract Interpretation Author: Reinhard Wilhelm and Bj rn Wachter
... deal of ingenuity may be required to organize the proof in a manageable fashion. ... a bit towards the late eighties, with machines getting faster and RAM ...
Detecting String Manipulation Errors. An important problem. Common errors ... New Polka [IMAG - Bertrand Jeannet] Main steps: Simplifier. Pointer analysis. C2IP ...
We can explain the meaning of programs in using the Strachey and Scott metalanguage ... Denotational techniques provide give meaning to programs by relating syntax to ...
Sistema de verificaci n de componentes software Tesis Doctoral Agust n Cernuda del R o Universidad de Oviedo, junio de 2002 Programa de la presentaci n El ...
Model for representing abstractions of imperative programs in C, C#, ... Explicit stack representation is bad. Implicitly represent stack instead. Similar to ...
Tracks values of program variables and heap ... created at each heap allocation call. To bound the number of names, equivalence classes defined for heap names ...
Few predicates tracked. e.g. type of variables. Imprecision hinders Verification ... Track lock, pi s. State Explosion 2n distinct states. intractable. verification ...
Dans le respect de la parole de l'autre, je prends le temps de ... Dans un esprit de solidarit et de bienveillance, j'aide les autres dans la mesure de mes ...
Can be extended to other variable types if a symbolic representation is provided ... Eliminating one variable from a conjunction of constraints may double the number ...
No primed variables in state formulas ... In transition formulas primed-variables denote the next-state values, unprimed ... actions: primed variables denote ...
List reverse (List x) { List y, t; y = NULL; while (x != NULL) { t = y; y = x; x = x next; ... List reverse (List x) { List y, t; y = NULL; while (x != NULL) ...