
handle: 11564/367511 , 20.500.14243/243987
Wepresentametho dforverifyingprop ertiesofimp erativeprogramsbyusingtechniquesbasedonconstraintlogicprogramming(CLP).Weconsiderasimpleimp erativelanguage,calledSIMP,extendedwithanondeterministicchoiceop eratorandweaddresstheproblemofcheckingwhetherornotasafetyprop erty?(thatsp eciesthatanun-safecongurationcannotb ereached)holdsforaSIMPprogramP.Theop erationalsemanticsofthelanguageSIMPissp eciedviaaninter-preterIwrittenasaCLPprogram.Therstphaseofourvericationmetho dconsistsinsp ecializingIwithresp ecttoP,therebyderivingasp ecializedinterpreterIP.Then,wesp ecializeIPwithresp ecttotheprop erty?andtheinputvaluesofP,withtheaimofderivingapro-gramwhoseleastmo delcanb ecomputedasanitesetofconstrainedfacts.Tothispurp oseweintro duceanovelgeneralizationstrategywhich,duringsp ecialization,preservesthesocalledbranchingb ehaviourofthepredicatedenitions.Wehavefullyautomatedourmetho dandwehavemadeitsexp erimentalevaluationonsomeexamplestakenfromtheliter-ature.Theevaluationshowsthatourmetho discomp etitivewithresp ecttostate-of-the-artsoftwaremo delcheckers
Program Verification
Program Verification
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