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On improving efficiency of model checking through systematically ...

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3.4 Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . 32<br />

3.4.1 nbac2xtgxml . . . . . . . . . . . . . . . . . . . . . . . 32<br />

3.4.2 nbac2uppaal . . . . . . . . . . . . . . . . . . . . . . . 34<br />

3.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35<br />

4 Case studies 37<br />

4.1 The tiny example . . . . . . . . . . . . . . . . . . . . . . . . . 38<br />

4.2 Asynchronous Reader/Writer Algorithm . . . . . . . . . . . . 39<br />

4.3 Fischer’s protocol . . . . . . . . . . . . . . . . . . . . . . . . . 40<br />

4.4 Subway system . . . . . . . . . . . . . . . . . . . . . . . . . . 42<br />

4.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43<br />

5 Experimental results and problem characterization 45<br />

5.1 Experiment procedure . . . . . . . . . . . . . . . . . . . . . . 46<br />

5.2 Experimental results . . . . . . . . . . . . . . . . . . . . . . . 47<br />

5.2.1 The tiny example . . . . . . . . . . . . . . . . . . . . . 47<br />

5.2.2 Asynchronous reader/writer algorithm (aka Burn’s algorithm)<br />

. . . . . . . . . . . . . . . . . . . . . . . . . . 48<br />

5.2.3 Fischer’s protocol and Subway system . . . . . . . . . 49<br />

5.3 Problem characterization . . . . . . . . . . . . . . . . . . . . 49<br />

5.4 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55<br />

6 Conclusions 57<br />

A Nbac input systems 66<br />

A.1 Tiny example . . . . . . . . . . . . . . . . . . . . . . . . . . . 66<br />

A.2 Asynchronous reader/writer algorithm . . . . . . . . . . . . . 66<br />

A.3 Fischer’s protocol . . . . . . . . . . . . . . . . . . . . . . . . . 70<br />

A.4 Subway system . . . . . . . . . . . . . . . . . . . . . . . . . . 72<br />

vii

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