./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 05602efd0716c9bc46b30aae12cb2e2448644d24 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 15:08:50,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 15:08:50,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 15:08:50,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 15:08:50,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 15:08:50,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 15:08:50,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 15:08:50,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 15:08:50,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 15:08:50,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 15:08:50,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 15:08:50,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 15:08:50,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 15:08:50,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 15:08:50,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 15:08:50,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 15:08:50,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 15:08:50,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 15:08:50,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 15:08:50,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 15:08:50,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 15:08:50,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 15:08:50,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 15:08:50,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 15:08:50,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 15:08:50,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 15:08:50,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 15:08:50,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 15:08:50,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 15:08:50,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 15:08:50,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 15:08:50,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 15:08:50,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 15:08:50,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 15:08:50,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 15:08:50,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 15:08:50,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 15:08:50,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 15:08:50,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 15:08:50,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 15:08:50,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 15:08:50,212 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-07-06 15:08:50,249 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 15:08:50,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 15:08:50,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 15:08:50,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 15:08:50,252 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 15:08:50,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 15:08:50,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 15:08:50,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 15:08:50,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 15:08:50,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-06 15:08:50,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 15:08:50,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-06 15:08:50,255 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-07-06 15:08:50,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 15:08:50,255 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 15:08:50,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-06 15:08:50,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 15:08:50,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 15:08:50,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 15:08:50,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:08:50,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 15:08:50,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 15:08:50,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-06 15:08:50,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 15:08:50,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 15:08:50,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-06 15:08:50,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 15:08:50,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05602efd0716c9bc46b30aae12cb2e2448644d24 [2021-07-06 15:08:50,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 15:08:50,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 15:08:50,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 15:08:50,589 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 15:08:50,590 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 15:08:50,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2021-07-06 15:08:50,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2fe9fdc/d463813292394916ab72ccc46b3936e2/FLAG766887238 [2021-07-06 15:08:51,069 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 15:08:51,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2021-07-06 15:08:51,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2fe9fdc/d463813292394916ab72ccc46b3936e2/FLAG766887238 [2021-07-06 15:08:51,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2fe9fdc/d463813292394916ab72ccc46b3936e2 [2021-07-06 15:08:51,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 15:08:51,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 15:08:51,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 15:08:51,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 15:08:51,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 15:08:51,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5683a7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51, skipping insertion in model container [2021-07-06 15:08:51,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 15:08:51,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 15:08:51,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:08:51,273 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 15:08:51,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:08:51,296 INFO L208 MainTranslator]: Completed translation [2021-07-06 15:08:51,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51 WrapperNode [2021-07-06 15:08:51,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 15:08:51,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 15:08:51,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 15:08:51,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 15:08:51,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 15:08:51,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 15:08:51,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 15:08:51,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 15:08:51,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 15:08:51,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 15:08:51,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 15:08:51,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 15:08:51,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (1/1) ... [2021-07-06 15:08:51,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:08:51,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 15:08:51,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-06 15:08:51,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-06 15:08:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 15:08:51,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 15:08:51,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 15:08:51,609 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-06 15:08:51,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:08:51 BoogieIcfgContainer [2021-07-06 15:08:51,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 15:08:51,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 15:08:51,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 15:08:51,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 15:08:51,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 03:08:51" (1/3) ... [2021-07-06 15:08:51,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d92d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:08:51, skipping insertion in model container [2021-07-06 15:08:51,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:08:51" (2/3) ... [2021-07-06 15:08:51,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d92d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:08:51, skipping insertion in model container [2021-07-06 15:08:51,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:08:51" (3/3) ... [2021-07-06 15:08:51,620 INFO L111 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2021-07-06 15:08:51,630 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 15:08:51,631 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-06 15:08:51,674 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:08:51,680 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:08:51,681 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:08:51,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:51,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-07-06 15:08:51,698 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:08:51,698 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-07-06 15:08:51,699 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:08:51,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:08:51,705 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-07-06 15:08:51,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:08:51,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516738101] [2021-07-06 15:08:51,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:08:51,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:08:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:08:51,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:51,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:51,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:51,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:08:51,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:08:51,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516738101] [2021-07-06 15:08:51,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516738101] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:08:51,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:08:51,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:08:51,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081362809] [2021-07-06 15:08:51,878 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-06 15:08:51,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:08:51,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-06 15:08:51,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-06 15:08:51,901 INFO L87 Difference]: Start difference. First operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:52,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:08:52,001 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-07-06 15:08:52,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-06 15:08:52,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-07-06 15:08:52,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:08:52,008 INFO L225 Difference]: With dead ends: 23 [2021-07-06 15:08:52,015 INFO L226 Difference]: Without dead ends: 8 [2021-07-06 15:08:52,018 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-06 15:08:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-07-06 15:08:52,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-07-06 15:08:52,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:52,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-07-06 15:08:52,040 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 3 [2021-07-06 15:08:52,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:08:52,041 INFO L442 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-07-06 15:08:52,041 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:52,041 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-07-06 15:08:52,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-06 15:08:52,042 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:08:52,042 INFO L525 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-07-06 15:08:52,042 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-06 15:08:52,042 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:08:52,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:08:52,043 INFO L82 PathProgramCache]: Analyzing trace with hash 925739309, now seen corresponding path program 1 times [2021-07-06 15:08:52,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:08:52,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947934015] [2021-07-06 15:08:52,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:08:52,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:08:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:08:52,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:08:52,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:08:52,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947934015] [2021-07-06 15:08:52,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947934015] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-06 15:08:52,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498323409] [2021-07-06 15:08:52,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:08:52,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-06 15:08:52,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 15:08:52,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-07-06 15:08:52,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-07-06 15:08:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:08:52,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-06 15:08:52,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 15:08:52,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,151 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:08:52,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:08:52,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:08:52,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,156 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:08:52,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:08:52,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:08:52,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:08:52,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:08:52,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:08:52,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:08:52,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:08:52,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,189 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-06 15:08:52,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-06 15:08:52,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-07-06 15:08:52,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:08:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:08:52,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498323409] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-06 15:08:52,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-06 15:08:52,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-07-06 15:08:52,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643312796] [2021-07-06 15:08:52,201 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-06 15:08:52,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:08:52,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 15:08:52,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-06 15:08:52,203 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:52,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:08:52,227 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2021-07-06 15:08:52,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-06 15:08:52,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-07-06 15:08:52,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:08:52,228 INFO L225 Difference]: With dead ends: 7 [2021-07-06 15:08:52,228 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:08:52,229 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-06 15:08:52,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:08:52,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:08:52,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:52,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:08:52,230 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-07-06 15:08:52,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:08:52,230 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:08:52,230 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:52,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:08:52,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:08:52,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:08:52,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:08:52,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:08:52,247 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:08:52,247 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:08:52,248 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:08:52,248 INFO L765 garLoopResultBuilder]: At program point L31(lines 22 32) the Hoare annotation is: true [2021-07-06 15:08:52,248 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:08:52,248 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:08:52,248 INFO L762 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-07-06 15:08:52,249 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:08:52,249 INFO L758 garLoopResultBuilder]: At program point L27-2(lines 27 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~z~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-07-06 15:08:52,249 INFO L762 garLoopResultBuilder]: For program point L27-3(lines 27 30) no Hoare annotation was computed. [2021-07-06 15:08:52,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-07-06 15:08:52,465 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-06 15:08:52,465 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:08:52,468 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (1/2) [2021-07-06 15:08:52,470 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:08:52,471 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:08:52,471 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:08:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:52,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-06 15:08:52,473 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:08:52,473 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-06 15:08:52,473 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:08:52,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:08:52,473 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-07-06 15:08:52,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:08:52,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550852749] [2021-07-06 15:08:52,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:08:52,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:08:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:08:52,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:08:52,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-06 15:08:52,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:08:52,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:08:52,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550852749] [2021-07-06 15:08:52,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550852749] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:08:52,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:08:52,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-07-06 15:08:52,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064563748] [2021-07-06 15:08:52,504 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:08:52,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:08:52,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:08:52,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:08:52,505 INFO L87 Difference]: Start difference. First operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:52,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:08:52,513 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-07-06 15:08:52,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:08:52,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-07-06 15:08:52,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:08:52,514 INFO L225 Difference]: With dead ends: 14 [2021-07-06 15:08:52,514 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:08:52,514 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:08:52,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:08:52,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:08:52,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:52,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:08:52,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-07-06 15:08:52,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:08:52,516 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:08:52,516 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:08:52,516 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:08:52,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:08:52,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:08:52,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:08:52,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:08:52,533 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:08:52,533 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:08:52,533 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-07-06 15:08:52,533 INFO L758 garLoopResultBuilder]: At program point L31(lines 22 32) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) [2021-07-06 15:08:52,533 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:08:52,533 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:08:52,534 INFO L762 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-07-06 15:08:52,534 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:08:52,534 INFO L758 garLoopResultBuilder]: At program point L27-2(lines 27 30) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~z~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2021-07-06 15:08:52,534 INFO L762 garLoopResultBuilder]: For program point L27-3(lines 27 30) no Hoare annotation was computed. [2021-07-06 15:08:52,534 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-06 15:08:52,534 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:08:52,535 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (2/2) [2021-07-06 15:08:52,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 03:08:52 BoogieIcfgContainer [2021-07-06 15:08:52,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 15:08:52,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 15:08:52,554 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 15:08:52,554 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 15:08:52,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:08:51" (3/4) ... [2021-07-06 15:08:52,559 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-06 15:08:52,574 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-07-06 15:08:52,574 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-07-06 15:08:52,604 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 15:08:52,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 15:08:52,605 INFO L168 Benchmark]: Toolchain (without parser) took 1509.93 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.3 MB in the beginning and 45.7 MB in the end (delta: -14.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:08:52,606 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 35.0 MB in the beginning and 34.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:08:52,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.02 ms. Allocated memory is still 54.5 MB. Free memory was 31.1 MB in the beginning and 33.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-07-06 15:08:52,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.03 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.9 MB in the beginning and 50.4 MB in the end (delta: -16.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 15:08:52,607 INFO L168 Benchmark]: Boogie Preprocessor took 19.78 ms. Allocated memory is still 67.1 MB. Free memory was 50.4 MB in the beginning and 49.6 MB in the end (delta: 809.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:08:52,607 INFO L168 Benchmark]: RCFGBuilder took 247.45 ms. Allocated memory is still 67.1 MB. Free memory was 49.5 MB in the beginning and 40.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 15:08:52,607 INFO L168 Benchmark]: TraceAbstraction took 940.22 ms. Allocated memory is still 67.1 MB. Free memory was 40.1 MB in the beginning and 48.2 MB in the end (delta: -8.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-07-06 15:08:52,608 INFO L168 Benchmark]: Witness Printer took 50.61 ms. Allocated memory is still 67.1 MB. Free memory was 48.2 MB in the beginning and 45.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 15:08:52,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 35.0 MB in the beginning and 34.9 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 199.02 ms. Allocated memory is still 54.5 MB. Free memory was 31.1 MB in the beginning and 33.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.03 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.9 MB in the beginning and 50.4 MB in the end (delta: -16.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.78 ms. Allocated memory is still 67.1 MB. Free memory was 50.4 MB in the beginning and 49.6 MB in the end (delta: 809.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 247.45 ms. Allocated memory is still 67.1 MB. Free memory was 49.5 MB in the beginning and 40.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 940.22 ms. Allocated memory is still 67.1 MB. Free memory was 40.1 MB in the beginning and 48.2 MB in the end (delta: -8.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Witness Printer took 50.61 ms. Allocated memory is still 67.1 MB. Free memory was 48.2 MB in the beginning and 45.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 795.1ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 7.4ms, AutomataDifference: 165.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 13.4ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 13 SDslu, 8 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 88.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 12.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 3.7ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 6.8ms SsaConstructionTime, 33.1ms SatisfiabilityAnalysisTime, 181.7ms InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 2 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 64.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.8ms, AutomataDifference: 10.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 16.0ms, InitialAbstractionConstructionTime: 0.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 5 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 3.0ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 8.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.1ms SsaConstructionTime, 2.6ms SatisfiabilityAnalysisTime, 21.8ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (0 <= x + 2147483648 && z <= 2147483647) && y <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-07-06 15:08:52,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...