Boonstoppel, Peter; Cadar, Cristian; Engler, Dawson (2008). Ramakrishnan, C. R.; Rehof, Jakob (eds.). "RWset: Attacking Path Explosion in Constraint-Based Test Generation". Tools and Algorithms for the Construction and Analysis of Systems. Berlin, Heidelberg: Springer: 351–366. doi:10.1007/978-3-540-78800-3_27. ISBN 978-3-540-78800-3. "the number of distinct paths increases exponentially with the number of conditional statements traversed. In all but the smallest programs, this typically leads to an essentially inexhaustible set of paths to explore." 978-3-540-78800-3