Generalized Symbolic Execution for Model Checking and Testing

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Generalized Symbolic Execution for Model Checking and Testing (2003)

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by Sarfraz Khurshid , Corina S. Pasareanu , Willem Visser

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232 - 52 self

BibTeX

@MISC{Khurshid03generalizedsymbolic,
    author = {Sarfraz Khurshid and Corina S. Pasareanu and Willem Visser},
    title = {Generalized Symbolic Execution for Model Checking and Testing},
    year = {2003}
}

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Abstract

Modern software systems, which often are concurrent and manipulate complex data structures must be extremely reliable. We present a novel framework based on symbolic execution, for automated checking of such systems. We provide a two-fold generalization of traditional symbolic execution based approaches. First, we de ne a source to source translation to instrument a program, which enables standard model checkers to perform symbolic execution of the program. Second, we give a novel symbolic execution algorithm that handles dynamically allocated structures (e.g., lists and trees), method preconditions (e.g., acyclicity), data (e.g., integers and strings) and concurrency. The program instrumentation enables a model checker to automatically explore dierent program heap con gurations and manipulate logical formulae on program data (using a decision procedure). We illustrate two applications of our framework: checking correctness of multi-threaded programs that take inputs from unbounded domains with complex structure and generation of non-isomorphic test inputs that satisfy a testing criterion.

Keyphrases

symbolic execution model checking novel symbolic execution algorithm logical formula two-fold generalization method precondition complex structure automated checking testing criterion dierent program heap con gurations unbounded domain manipulate complex data structure program data traditional symbolic execution non-isomorphic test input standard model checker source translation decision procedure novel framework model checker modern software system checking correctness program instrumentation multi-threaded program

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