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SMT-based Verification Applied to Non-convex Optimization Problems

ARAUJO, RODRIGO; BESSA, IURY; CORDEIRO, Lucas Carvalho; FILHO, JOAO EDGAR CHAVES

2016 • 2016 VI Brazilian Symposium on Computing Systems Engineering (SBESC) • 11 citações

Resumo

Resumo

This paper presents a novel, complete, and flexible optimization algorithm, which relies on recursive executions that re-constrains a model-checking procedure based on Satisfiability Modulo Theories (SMT). This SMT-based optimization technique is able to optimize a wide range of functions, including non-linear and non-convex problems using fixed-point arithmetic. Although SMT-based optimization is not a new technique, this work is the pioneer in solving non-linear and non-convex problems based on SMT; previous applications are only able to solve integer and rational linear problems. The proposed SMT-based optimization algorithm is compared to other traditional optimization techniques. Experimental results show the efficiency and effectiveness of the proposed algorithm, which finds the optimal solution in all evaluated benchmarks, while traditional techniques are usually trapped by local minima.

Autoria

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palavras-chave

Palavras-chave

satisfiability modulo theoriesnon-convex optimizationnonlinear programmingmodel checkingfixed-point arithmeticlocal optima avoidance

Status

Published

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