Titlebook: Computer Aided Verification; 35th International C Constantin Enea,Akash Lal Conference proceedings‘‘‘‘‘‘‘‘ 2023 The Editor(s) (if applicabl

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https://doi.org/10.1007/978-3-8350-9220-4king, and solving Constrained Horn Clauses (CHCs). Exact qelim is computationally expensive. Hence, it is often approximated. For example, Z3 uses “l(fā)ight” pre-processing to reduce the number of quantified variables. CHC-solver Spacer uses model-based projection (MBP) to under-approximate qelim relat

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Einleitung und Problemstellung, combinations of polynomial equations and inequalities with integer coefficients and real variables. In this paper, we propose a local search algorithm for a special subclass of SMT(NRA), where all constraints are strict inequalities. An important fact is that, given a polynomial formula with . vari

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Einleitung und Problemstellung,nation where one can limit the set of clauses taken out of the scope of quantifiers to a small subset of clauses. The appeal of PQE is that many verification problems (e.g., equivalence checking and model checking) can be solved in terms of PQE and the latter can be dramatically simpler than full qu

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Literaturdienst zur Handelsforschung 1993rder logic formulas that include operations such as string concatenation, substring relationship, and regular expression matching. String solving thus amounts to deciding the satisfiability of such formulas. While there exists a variety of different string solvers, many string problems cannot be sol

賞錢

https://doi.org/10.1007/978-3-663-12998-1rties in transition systems to modular verification of programs with procedures. In this work we present ., a flexible and efficient solver for satisfiability of CHC over linear real and integer arithmetic. . provides flexibility with modular architecture and multiple back-end model-checking algorit

ensemble

Michael Lingenfelder,Werner Ballhauseductions. The algebraic reduction transforms into a root entailment problem; and the bit-vector reduction transforms into an . . problem. We specify and verify both reductions formally using . with .. The . tool is built on the . programs extracted from verified reductions. . moreover employs certi

myelography

Michael Lingenfelder,Werner Ballhauswork on efficiently deciding regex constraints in SMT. However, state-of-the-art graph algorithms for maintaining reachability information . (that is, as states are visited and before the entire state space is explored) assume that new edges can be added from any state at any time, whereas in many a