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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸°úÇÐȸ ³í¹®Áö > Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

Á¤º¸°úÇÐȸ³í¹®Áö (Journal of KIISE)

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ÇѱÛÁ¦¸ñ(Korean Title) Ãß»ó µµ´Þ°¡´É¼º ±×·¡ÇÁ ±â¹Ý ¼ÒÇÁÆ®¿þ¾î ¸ðµ¨Ã¼Å·¿¡¼­ÀÇ Å½»öÀü·« °í·Á¹æ¹ý
¿µ¹®Á¦¸ñ(English Title) Controlling a Traversal Strategy of Abstract Reachability Graph-based Software Model Checking
ÀúÀÚ(Author) À̳«¿ø   ¹éÁ¾¹®   Nakwon Lee   Jongmoon Baik  
¿ø¹®¼ö·Ïó(Citation) VOL 44 NO. 10 PP. 1034 ~ 1044 (2017. 10)
Çѱ۳»¿ë
(Korean Abstract)
º» ¿¬±¸¿¡¼­´Â Ãß»ó µµ´Þ°¡´É¼º ±×·¡ÇÁ(ARG) ±â¹ÝÀÇ ¼ÒÇÁÆ®¿þ¾î ¸ðµ¨Ã¼Å·¿¡¼­ ±×·¡ÇÁ Ž»öÀü·«À» ¼³Á¤ÇÒ ¼ö ÀÖ´Â »õ·Î¿î ¹æ¹ýÀ» Á¦½ÃÇÑ´Ù. ARGÀÇ ¿©·¯ ½ÇÇà °æ·Î¸¦ Çϳª·Î ¹­¾î ¸ðµ¨Ã¼Å· ¼º´ÉÀ» Çâ»ó½ÃÅ°´Â ±â¹ýÀÎ ºí·Ï ÀÎÄÚµù(Block Encoding) ±â¹ýÀ» È°¿ëÇÏ´Â °æ¿ì ±âÁ¸ÀÇ ±â¹ýµéÀº ÀÎÄÚµù ÀüÀÇ ARG¿¡¼­ ÀÎÄÚµùÀ» È¿°úÀûÀ¸·Î ¼öÇàÇÒ ¼ö Àִ Ž»öÀü·«¸¸À» °í·ÁÇÏ¿´À» »Ó ½ÇÁ¦ ¸ðµ¨Ã¼Å·ÀÇ ¼º´ÉÀ» Á¿ìÇÒ ¼ö ÀÖ´Â ÀÎÄÚµù ÈÄÀÇ ARG¿¡ ´ëÇÑ Å½»öÀü·«À» °í·ÁÇÏÁö ¸øÇÏ´Â ¹®Á¦°¡ ÀÖ¾ú´Ù. º» ¿¬±¸¿¡¼­´Â ±âÁ¸ ¿¬±¸¿¡¼­ Á¦½ÃµÈ Ž»ö ±â¹ýÀ» »ç¿ëÇÏ¿© ºí·Ï ÀÎÄÚµùÀ» È¿°úÀûÀ¸·Î ¼öÇàÇÏ´Â µ¿½Ã¿¡ ÀÎÄÚµùµÈ ÈÄÀÇ ARG¿¡ ´ëÇÑ Å½»ö ¼ø¼­¸¦ °í·ÁÇÒ ¼ö ÀÖ´Â ÀÌÁß Å½»öÀü·« ±â¹ýÀ» Á¦½ÃÇÑ´Ù. ¶ÇÇÑ Å½»ö ¼ø¼­ÀÇ º¯È­°¡ ¸ðµ¨Ã¼Å·ÀÇ ¼º´É¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» È®ÀÎÇϱâ À§ÇÏ¿© Á¦½ÃÇÏ´Â ±â¹ýÀ» ¿ÀǼҽº ¸ðµ¨Ã¼Å· µµ±¸¿¡ ±¸ÇöÇÏ°í º¥Ä¡¸¶Å© ½ÇÇèÀ» ¼öÇàÇÏ¿´À¸¸ç Ž»öÀü·«ÀÌ ´Þ¶óÁö¸é ¸ðµ¨Ã¼Å·ÀÇ ¼º´ÉÀÌ ´Þ¶óÁö´Â Çö»óÀ» È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
Although traversal strategies are important for the performance of model checking, many studies have ignored the impact of traversal strategies in model checking with a block-encoded abstract reachability graph. Studies have considered traversal strategies only for an abstract reachability graph without block-encoding. Block encoding plays a crucial role in the model checking performance. This paper therefore describes Dual-traversal strategy, a simple and novel technique to control traversal strategies in a block-encoded abstract reachability graph. This method uses two traversal strategies for a model checking, one for effective block-encoding, and the other for traversal in an encoded abstract reachability graph. Dual-traversal strategy is very simple and can be implemented without overhead compared to the existing single-traversal strategy. We implemented the Dual-traversal strategy in an open source model checking tool and compare the performances of different traversal strategies. The results show that the model checking performance varies from the traversal strategies for the encoded abstract reachability graph.
Å°¿öµå(Keyword) ¸ðµ¨ üŷ   Ãß»ó µµ´Þ°¡´É¼º ±×·¡ÇÁ   ºí·Ï ÀÎÄÚµù   ±×·¡ÇÁ Ž»öÀü·«   model checking   abstract reachability graph   block-encoding   graph traversal strategies  
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