./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_1_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_1_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75a4b2700f7e5eb2f441e8ca44900f973fcef82c .................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_1_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75a4b2700f7e5eb2f441e8ca44900f973fcef82c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 03:45:30,647 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:45:30,648 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:45:30,654 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:45:30,655 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:45:30,655 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:45:30,656 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:45:30,657 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:45:30,658 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:45:30,658 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:45:30,659 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:45:30,659 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:45:30,659 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:45:30,660 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:45:30,661 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:45:30,661 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:45:30,661 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:45:30,662 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:45:30,663 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:45:30,664 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:45:30,665 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:45:30,665 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:45:30,667 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:45:30,667 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:45:30,667 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:45:30,668 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:45:30,668 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:45:30,668 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:45:30,669 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:45:30,669 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:45:30,670 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:45:30,670 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:45:30,670 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:45:30,670 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:45:30,671 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:45:30,671 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:45:30,671 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-12-02 03:45:30,679 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:45:30,679 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:45:30,680 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 03:45:30,680 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 03:45:30,680 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 03:45:30,680 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 03:45:30,680 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 03:45:30,680 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 03:45:30,680 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 03:45:30,681 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 03:45:30,681 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 03:45:30,681 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 03:45:30,681 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 03:45:30,681 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 03:45:30,681 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 03:45:30,681 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:45:30,681 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 03:45:30,682 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 03:45:30,682 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 03:45:30,683 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 03:45:30,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:45:30,683 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:45:30,683 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 03:45:30,683 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 03:45:30,683 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 03:45:30,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 03:45:30,683 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75a4b2700f7e5eb2f441e8ca44900f973fcef82c [2018-12-02 03:45:30,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:45:30,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:45:30,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:45:30,710 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:45:30,710 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:45:30,711 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_1_true-valid-memsafety.i [2018-12-02 03:45:30,747 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/data/a111484eb/11cf68ea797c4246b85869638d1ffa15/FLAGfef0c094d [2018-12-02 03:45:31,147 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:45:31,147 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/sv-benchmarks/c/ldv-memsafety/memleaks_test23_1_true-valid-memsafety.i [2018-12-02 03:45:31,155 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/data/a111484eb/11cf68ea797c4246b85869638d1ffa15/FLAGfef0c094d [2018-12-02 03:45:31,162 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/data/a111484eb/11cf68ea797c4246b85869638d1ffa15 [2018-12-02 03:45:31,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:45:31,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:45:31,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:45:31,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:45:31,168 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:45:31,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:45:31" (1/1) ... [2018-12-02 03:45:31,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152b197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:31, skipping insertion in model container [2018-12-02 03:45:31,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:45:31" (1/1) ... [2018-12-02 03:45:31,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:45:31,196 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:45:31,421 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:45:31,422 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NumberFormatException: Illegal leading minus sign on unsigned string -1234567. at java.lang.Integer.parseUnsignedInt(Integer.java:672) at java.lang.Integer.parseUnsignedInt(Integer.java:711) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CTranslationUtil.getConstantFirstDimensionOfArray(CTranslationUtil.java:208) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.InitializationHandler.constructIndexToInitInfo(InitializationHandler.java:1268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.InitializationHandler.constructInitializerInfo(InitializationHandler.java:1223) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.InitializationHandler.initialize(InitializationHandler.java:223) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.InitializationHandler.initialize(InitializationHandler.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.PostProcessor.createUltimateInitProcedure(PostProcessor.java:639) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.PostProcessor.postProcess(PostProcessor.java:205) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:566) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-12-02 03:45:31,424 INFO L168 Benchmark]: Toolchain (without parser) took 259.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 953.4 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2018-12-02 03:45:31,426 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:45:31,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 953.4 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2018-12-02 03:45:31,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 953.4 MB in the beginning and 1.1 GB in the end (delta: -128.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NumberFormatException: Illegal leading minus sign on unsigned string -1234567. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NumberFormatException: Illegal leading minus sign on unsigned string -1234567.: java.lang.Integer.parseUnsignedInt(Integer.java:672) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-02 03:45:32,439 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 03:45:32,440 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 03:45:32,446 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 03:45:32,446 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 03:45:32,447 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 03:45:32,447 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 03:45:32,448 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 03:45:32,449 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 03:45:32,449 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 03:45:32,450 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 03:45:32,450 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 03:45:32,450 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 03:45:32,451 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 03:45:32,451 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 03:45:32,452 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 03:45:32,452 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 03:45:32,453 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 03:45:32,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 03:45:32,455 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 03:45:32,455 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 03:45:32,456 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 03:45:32,457 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 03:45:32,457 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 03:45:32,457 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 03:45:32,458 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 03:45:32,458 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 03:45:32,459 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 03:45:32,459 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 03:45:32,460 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 03:45:32,460 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 03:45:32,460 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 03:45:32,461 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 03:45:32,461 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 03:45:32,461 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 03:45:32,461 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 03:45:32,462 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2018-12-02 03:45:32,469 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 03:45:32,469 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 03:45:32,470 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 03:45:32,470 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 03:45:32,470 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 03:45:32,470 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 03:45:32,470 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 03:45:32,470 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 03:45:32,471 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 03:45:32,471 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 03:45:32,471 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 03:45:32,471 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 03:45:32,471 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 03:45:32,471 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 03:45:32,471 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 03:45:32,472 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 03:45:32,472 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 03:45:32,472 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 03:45:32,472 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 03:45:32,472 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 03:45:32,472 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 03:45:32,472 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 03:45:32,472 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 03:45:32,473 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 03:45:32,473 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 03:45:32,473 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 03:45:32,473 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 03:45:32,473 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 03:45:32,473 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 03:45:32,473 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 03:45:32,473 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:45:32,473 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 03:45:32,474 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 03:45:32,474 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 03:45:32,474 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 03:45:32,474 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 03:45:32,474 INFO L133 SettingsManager]: * Logic for external solver=AUFBV 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75a4b2700f7e5eb2f441e8ca44900f973fcef82c [2018-12-02 03:45:32,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 03:45:32,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 03:45:32,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 03:45:32,502 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 03:45:32,502 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 03:45:32,502 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_1_true-valid-memsafety.i [2018-12-02 03:45:32,539 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/data/d6c34eee4/f28040d85a254c048a0fcf33740d5691/FLAGd8afe82ee [2018-12-02 03:45:33,031 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 03:45:33,032 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/sv-benchmarks/c/ldv-memsafety/memleaks_test23_1_true-valid-memsafety.i [2018-12-02 03:45:33,040 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/data/d6c34eee4/f28040d85a254c048a0fcf33740d5691/FLAGd8afe82ee [2018-12-02 03:45:33,049 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/data/d6c34eee4/f28040d85a254c048a0fcf33740d5691 [2018-12-02 03:45:33,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 03:45:33,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 03:45:33,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 03:45:33,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 03:45:33,054 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 03:45:33,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73418f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33, skipping insertion in model container [2018-12-02 03:45:33,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 03:45:33,086 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 03:45:33,307 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:45:33,356 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 03:45:33,407 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 03:45:33,446 INFO L195 MainTranslator]: Completed translation [2018-12-02 03:45:33,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33 WrapperNode [2018-12-02 03:45:33,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 03:45:33,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 03:45:33,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 03:45:33,447 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 03:45:33,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 03:45:33,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 03:45:33,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 03:45:33,472 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 03:45:33,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (1/1) ... [2018-12-02 03:45:33,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 03:45:33,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 03:45:33,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 03:45:33,502 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 03:45:33,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 03:45:33,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2018-12-02 03:45:33,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2018-12-02 03:45:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 03:45:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 03:45:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_device [2018-12-02 03:45:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_device [2018-12-02 03:45:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-12-02 03:45:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-12-02 03:45:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-12-02 03:45:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-12-02 03:45:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2018-12-02 03:45:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2018-12-02 03:45:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-02 03:45:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-02 03:45:33,536 INFO L130 BoogieDeclarations]: Found specification of procedure probe_23 [2018-12-02 03:45:33,536 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_23 [2018-12-02 03:45:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure fetch_item [2018-12-02 03:45:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure fetch_item [2018-12-02 03:45:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2018-12-02 03:45:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2018-12-02 03:45:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_23 [2018-12-02 03:45:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_23 [2018-12-02 03:45:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2018-12-02 03:45:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2018-12-02 03:45:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 03:45:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 03:45:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure free_reports [2018-12-02 03:45:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure free_reports [2018-12-02 03:45:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 03:45:33,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 03:45:33,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 03:45:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure hid_parser_main [2018-12-02 03:45:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_parser_main [2018-12-02 03:45:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 03:45:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 03:45:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 03:45:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 03:45:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2018-12-02 03:45:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2018-12-02 03:45:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure hid_register_report [2018-12-02 03:45:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_register_report [2018-12-02 03:45:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2018-12-02 03:45:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2018-12-02 03:45:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-02 03:45:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-02 03:45:33,538 INFO L130 BoogieDeclarations]: Found specification of procedure hid_open_report [2018-12-02 03:45:33,538 INFO L138 BoogieDeclarations]: Found implementation of procedure hid_open_report [2018-12-02 03:45:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2018-12-02 03:45:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2018-12-02 03:45:33,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 03:45:33,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 03:45:34,118 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 03:45:34,118 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 03:45:34,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:45:34 BoogieIcfgContainer [2018-12-02 03:45:34,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 03:45:34,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 03:45:34,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 03:45:34,122 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 03:45:34,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:45:33" (1/3) ... [2018-12-02 03:45:34,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a24e188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:45:34, skipping insertion in model container [2018-12-02 03:45:34,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:45:33" (2/3) ... [2018-12-02 03:45:34,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a24e188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:45:34, skipping insertion in model container [2018-12-02 03:45:34,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:45:34" (3/3) ... [2018-12-02 03:45:34,125 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test23_1_true-valid-memsafety.i [2018-12-02 03:45:34,133 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 03:45:34,139 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2018-12-02 03:45:34,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2018-12-02 03:45:34,172 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 03:45:34,172 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 03:45:34,173 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-02 03:45:34,173 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 03:45:34,173 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 03:45:34,173 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 03:45:34,173 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 03:45:34,173 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 03:45:34,173 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 03:45:34,190 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states. [2018-12-02 03:45:34,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 03:45:34,197 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:34,197 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:34,199 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:34,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:34,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1891863155, now seen corresponding path program 1 times [2018-12-02 03:45:34,206 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:34,206 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:34,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:34,298 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:34,331 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 03:45:34,332 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:34,336 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:45:34,337 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-02 03:45:34,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:34,391 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:34,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:34,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 03:45:34,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 03:45:34,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 03:45:34,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 03:45:34,412 INFO L87 Difference]: Start difference. First operand 238 states. Second operand 7 states. [2018-12-02 03:45:34,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:34,984 INFO L93 Difference]: Finished difference Result 181 states and 190 transitions. [2018-12-02 03:45:34,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 03:45:34,985 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-12-02 03:45:34,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:34,993 INFO L225 Difference]: With dead ends: 181 [2018-12-02 03:45:34,993 INFO L226 Difference]: Without dead ends: 178 [2018-12-02 03:45:34,994 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-02 03:45:35,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-12-02 03:45:35,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 170. [2018-12-02 03:45:35,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-12-02 03:45:35,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 180 transitions. [2018-12-02 03:45:35,023 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 180 transitions. Word has length 18 [2018-12-02 03:45:35,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:35,024 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 180 transitions. [2018-12-02 03:45:35,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 03:45:35,024 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 180 transitions. [2018-12-02 03:45:35,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 03:45:35,024 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:35,024 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:35,025 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:35,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:35,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1891863154, now seen corresponding path program 1 times [2018-12-02 03:45:35,025 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:35,026 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:35,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:35,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:35,096 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 03:45:35,097 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:35,102 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:45:35,102 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-02 03:45:35,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:35,186 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:35,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:35,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 03:45:35,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 03:45:35,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 03:45:35,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 03:45:35,189 INFO L87 Difference]: Start difference. First operand 170 states and 180 transitions. Second operand 8 states. [2018-12-02 03:45:35,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:35,789 INFO L93 Difference]: Finished difference Result 176 states and 185 transitions. [2018-12-02 03:45:35,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 03:45:35,790 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-12-02 03:45:35,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:35,792 INFO L225 Difference]: With dead ends: 176 [2018-12-02 03:45:35,792 INFO L226 Difference]: Without dead ends: 176 [2018-12-02 03:45:35,792 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-12-02 03:45:35,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-12-02 03:45:35,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 170. [2018-12-02 03:45:35,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-12-02 03:45:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 178 transitions. [2018-12-02 03:45:35,802 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 178 transitions. Word has length 18 [2018-12-02 03:45:35,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:35,802 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 178 transitions. [2018-12-02 03:45:35,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 03:45:35,803 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 178 transitions. [2018-12-02 03:45:35,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 03:45:35,803 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:35,803 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:35,804 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:35,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:35,804 INFO L82 PathProgramCache]: Analyzing trace with hash -149052820, now seen corresponding path program 1 times [2018-12-02 03:45:35,805 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:35,805 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:35,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:35,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:35,880 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:35,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:35,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 03:45:35,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 03:45:35,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 03:45:35,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 03:45:35,882 INFO L87 Difference]: Start difference. First operand 170 states and 178 transitions. Second operand 5 states. [2018-12-02 03:45:35,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:35,903 INFO L93 Difference]: Finished difference Result 163 states and 170 transitions. [2018-12-02 03:45:35,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 03:45:35,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-12-02 03:45:35,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:35,904 INFO L225 Difference]: With dead ends: 163 [2018-12-02 03:45:35,904 INFO L226 Difference]: Without dead ends: 163 [2018-12-02 03:45:35,905 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 03:45:35,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-12-02 03:45:35,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 161. [2018-12-02 03:45:35,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-12-02 03:45:35,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 168 transitions. [2018-12-02 03:45:35,909 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 168 transitions. Word has length 18 [2018-12-02 03:45:35,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:35,910 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 168 transitions. [2018-12-02 03:45:35,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 03:45:35,910 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 168 transitions. [2018-12-02 03:45:35,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 03:45:35,910 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:35,910 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:35,911 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:35,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:35,911 INFO L82 PathProgramCache]: Analyzing trace with hash 167569047, now seen corresponding path program 1 times [2018-12-02 03:45:35,911 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:35,911 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:35,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:35,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:36,000 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-02 03:45:36,003 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:36,011 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 21 [2018-12-02 03:45:36,015 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-12-02 03:45:36,016 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:36,033 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:36,044 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:36,051 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 24 [2018-12-02 03:45:36,051 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-12-02 03:45:36,071 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-12-02 03:45:36,085 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-12-02 03:45:36,102 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-12-02 03:45:36,102 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:12, output treesize:44 [2018-12-02 03:45:36,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-12-02 03:45:36,150 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:36,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:45:36,153 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:11 [2018-12-02 03:45:36,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:36,244 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:36,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:36,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-02 03:45:36,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 03:45:36,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 03:45:36,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-12-02 03:45:36,247 INFO L87 Difference]: Start difference. First operand 161 states and 168 transitions. Second operand 12 states. [2018-12-02 03:45:37,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:37,728 INFO L93 Difference]: Finished difference Result 245 states and 259 transitions. [2018-12-02 03:45:37,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-02 03:45:37,729 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2018-12-02 03:45:37,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:37,731 INFO L225 Difference]: With dead ends: 245 [2018-12-02 03:45:37,731 INFO L226 Difference]: Without dead ends: 242 [2018-12-02 03:45:37,731 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2018-12-02 03:45:37,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-12-02 03:45:37,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 164. [2018-12-02 03:45:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-12-02 03:45:37,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 171 transitions. [2018-12-02 03:45:37,741 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 171 transitions. Word has length 22 [2018-12-02 03:45:37,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:37,741 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 171 transitions. [2018-12-02 03:45:37,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 03:45:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 171 transitions. [2018-12-02 03:45:37,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 03:45:37,742 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:37,742 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:37,742 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:37,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:37,742 INFO L82 PathProgramCache]: Analyzing trace with hash 167569048, now seen corresponding path program 1 times [2018-12-02 03:45:37,743 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:37,743 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:37,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:37,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:37,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-02 03:45:37,843 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-02 03:45:37,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:37,847 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:45:37,856 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-02 03:45:37,860 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:37,867 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 15 treesize of output 21 [2018-12-02 03:45:37,870 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:37,875 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:37,880 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 24 [2018-12-02 03:45:37,881 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-12-02 03:45:37,901 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-12-02 03:45:37,902 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:37,921 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-12-02 03:45:37,935 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-12-02 03:45:37,956 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-12-02 03:45:37,956 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:25, output treesize:83 [2018-12-02 03:45:39,068 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-02 03:45:39,076 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:39,077 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:39,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-12-02 03:45:39,078 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:39,127 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:39,129 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2018-12-02 03:45:39,129 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:39,196 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 27 [2018-12-02 03:45:39,196 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-12-02 03:45:39,243 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:39,244 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:39,245 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:45:39,246 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 22 [2018-12-02 03:45:39,246 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:39,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-02 03:45:39,286 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 8 variables, input treesize:61, output treesize:28 [2018-12-02 03:45:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:39,334 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:39,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:39,336 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 03:45:39,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 03:45:39,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 03:45:39,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=39, Unknown=1, NotChecked=12, Total=72 [2018-12-02 03:45:39,337 INFO L87 Difference]: Start difference. First operand 164 states and 171 transitions. Second operand 9 states. [2018-12-02 03:45:46,514 WARN L180 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 31 [2018-12-02 03:45:49,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:49,716 INFO L93 Difference]: Finished difference Result 241 states and 255 transitions. [2018-12-02 03:45:49,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 03:45:49,717 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-02 03:45:49,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:49,718 INFO L225 Difference]: With dead ends: 241 [2018-12-02 03:45:49,718 INFO L226 Difference]: Without dead ends: 241 [2018-12-02 03:45:49,718 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=67, Invalid=141, Unknown=6, NotChecked=26, Total=240 [2018-12-02 03:45:49,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2018-12-02 03:45:49,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 163. [2018-12-02 03:45:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-12-02 03:45:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 170 transitions. [2018-12-02 03:45:49,726 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 170 transitions. Word has length 22 [2018-12-02 03:45:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:49,726 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 170 transitions. [2018-12-02 03:45:49,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 03:45:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 170 transitions. [2018-12-02 03:45:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 03:45:49,727 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:49,727 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:49,728 INFO L423 AbstractCegarLoop]: === Iteration 6 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:49,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:49,728 INFO L82 PathProgramCache]: Analyzing trace with hash -787597649, now seen corresponding path program 1 times [2018-12-02 03:45:49,728 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:49,729 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:49,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:49,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:49,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:49,793 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:49,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:49,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 03:45:49,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 03:45:49,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 03:45:49,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 03:45:49,795 INFO L87 Difference]: Start difference. First operand 163 states and 170 transitions. Second operand 5 states. [2018-12-02 03:45:49,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:49,816 INFO L93 Difference]: Finished difference Result 163 states and 169 transitions. [2018-12-02 03:45:49,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 03:45:49,817 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-12-02 03:45:49,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:49,817 INFO L225 Difference]: With dead ends: 163 [2018-12-02 03:45:49,818 INFO L226 Difference]: Without dead ends: 163 [2018-12-02 03:45:49,818 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 03:45:49,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-12-02 03:45:49,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-12-02 03:45:49,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-12-02 03:45:49,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 169 transitions. [2018-12-02 03:45:49,822 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 169 transitions. Word has length 24 [2018-12-02 03:45:49,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:49,822 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 169 transitions. [2018-12-02 03:45:49,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 03:45:49,822 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 169 transitions. [2018-12-02 03:45:49,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 03:45:49,823 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:49,823 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:49,823 INFO L423 AbstractCegarLoop]: === Iteration 7 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:49,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:49,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1293156274, now seen corresponding path program 1 times [2018-12-02 03:45:49,828 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:49,828 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:49,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:49,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:49,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:49,884 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:49,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:49,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 03:45:49,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 03:45:49,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 03:45:49,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 03:45:49,886 INFO L87 Difference]: Start difference. First operand 163 states and 169 transitions. Second operand 6 states. [2018-12-02 03:45:49,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:49,902 INFO L93 Difference]: Finished difference Result 163 states and 168 transitions. [2018-12-02 03:45:49,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 03:45:49,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-02 03:45:49,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:49,903 INFO L225 Difference]: With dead ends: 163 [2018-12-02 03:45:49,903 INFO L226 Difference]: Without dead ends: 155 [2018-12-02 03:45:49,903 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 03:45:49,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-12-02 03:45:49,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-12-02 03:45:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-12-02 03:45:49,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 160 transitions. [2018-12-02 03:45:49,907 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 160 transitions. Word has length 24 [2018-12-02 03:45:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:49,907 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 160 transitions. [2018-12-02 03:45:49,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 03:45:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 160 transitions. [2018-12-02 03:45:49,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-02 03:45:49,908 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:49,908 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:49,908 INFO L423 AbstractCegarLoop]: === Iteration 8 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:49,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:49,909 INFO L82 PathProgramCache]: Analyzing trace with hash -956412770, now seen corresponding path program 1 times [2018-12-02 03:45:49,909 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:49,909 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:49,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:49,996 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:50,003 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 03:45:50,003 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:50,004 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:45:50,004 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-02 03:45:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:50,027 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:50,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:50,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 03:45:50,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 03:45:50,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 03:45:50,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-02 03:45:50,030 INFO L87 Difference]: Start difference. First operand 155 states and 160 transitions. Second operand 7 states. [2018-12-02 03:45:50,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:50,504 INFO L93 Difference]: Finished difference Result 152 states and 157 transitions. [2018-12-02 03:45:50,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 03:45:50,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2018-12-02 03:45:50,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:50,505 INFO L225 Difference]: With dead ends: 152 [2018-12-02 03:45:50,505 INFO L226 Difference]: Without dead ends: 152 [2018-12-02 03:45:50,505 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-12-02 03:45:50,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-12-02 03:45:50,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-12-02 03:45:50,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-12-02 03:45:50,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 157 transitions. [2018-12-02 03:45:50,507 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 157 transitions. Word has length 36 [2018-12-02 03:45:50,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:50,508 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 157 transitions. [2018-12-02 03:45:50,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 03:45:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 157 transitions. [2018-12-02 03:45:50,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-02 03:45:50,508 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:50,508 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:50,508 INFO L423 AbstractCegarLoop]: === Iteration 9 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:50,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:50,509 INFO L82 PathProgramCache]: Analyzing trace with hash -956412769, now seen corresponding path program 1 times [2018-12-02 03:45:50,509 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:50,509 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:50,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:50,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:50,605 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 03:45:50,605 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:50,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:45:50,611 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-02 03:45:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:50,645 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:50,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:50,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 03:45:50,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 03:45:50,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 03:45:50,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 03:45:50,648 INFO L87 Difference]: Start difference. First operand 152 states and 157 transitions. Second operand 6 states. [2018-12-02 03:45:51,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:51,085 INFO L93 Difference]: Finished difference Result 149 states and 154 transitions. [2018-12-02 03:45:51,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 03:45:51,086 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2018-12-02 03:45:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:51,086 INFO L225 Difference]: With dead ends: 149 [2018-12-02 03:45:51,086 INFO L226 Difference]: Without dead ends: 149 [2018-12-02 03:45:51,087 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 03:45:51,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-12-02 03:45:51,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-12-02 03:45:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-12-02 03:45:51,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 154 transitions. [2018-12-02 03:45:51,089 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 154 transitions. Word has length 36 [2018-12-02 03:45:51,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:51,089 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 154 transitions. [2018-12-02 03:45:51,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 03:45:51,089 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 154 transitions. [2018-12-02 03:45:51,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-02 03:45:51,090 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:51,090 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:51,090 INFO L423 AbstractCegarLoop]: === Iteration 10 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:51,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:51,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1358272823, now seen corresponding path program 1 times [2018-12-02 03:45:51,091 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:51,091 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:51,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:51,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:51,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:51,152 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:51,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:51,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 03:45:51,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 03:45:51,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 03:45:51,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 03:45:51,155 INFO L87 Difference]: Start difference. First operand 149 states and 154 transitions. Second operand 5 states. [2018-12-02 03:45:51,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:51,175 INFO L93 Difference]: Finished difference Result 148 states and 153 transitions. [2018-12-02 03:45:51,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 03:45:51,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2018-12-02 03:45:51,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:51,176 INFO L225 Difference]: With dead ends: 148 [2018-12-02 03:45:51,176 INFO L226 Difference]: Without dead ends: 148 [2018-12-02 03:45:51,176 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 03:45:51,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-12-02 03:45:51,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-12-02 03:45:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-12-02 03:45:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 153 transitions. [2018-12-02 03:45:51,178 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 153 transitions. Word has length 40 [2018-12-02 03:45:51,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:51,178 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 153 transitions. [2018-12-02 03:45:51,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 03:45:51,179 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 153 transitions. [2018-12-02 03:45:51,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-12-02 03:45:51,179 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:51,179 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:51,179 INFO L423 AbstractCegarLoop]: === Iteration 11 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:51,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:51,180 INFO L82 PathProgramCache]: Analyzing trace with hash -843215147, now seen corresponding path program 1 times [2018-12-02 03:45:51,180 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:51,180 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:51,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:51,231 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:51,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:51,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:51,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:51,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 03:45:51,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 03:45:51,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 03:45:51,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 03:45:51,257 INFO L87 Difference]: Start difference. First operand 148 states and 153 transitions. Second operand 6 states. [2018-12-02 03:45:51,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:45:51,311 INFO L93 Difference]: Finished difference Result 148 states and 152 transitions. [2018-12-02 03:45:51,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 03:45:51,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2018-12-02 03:45:51,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:45:51,312 INFO L225 Difference]: With dead ends: 148 [2018-12-02 03:45:51,312 INFO L226 Difference]: Without dead ends: 148 [2018-12-02 03:45:51,312 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 03:45:51,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-12-02 03:45:51,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-12-02 03:45:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-12-02 03:45:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 152 transitions. [2018-12-02 03:45:51,314 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 152 transitions. Word has length 41 [2018-12-02 03:45:51,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:45:51,315 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 152 transitions. [2018-12-02 03:45:51,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 03:45:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 152 transitions. [2018-12-02 03:45:51,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 03:45:51,315 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:45:51,315 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:45:51,315 INFO L423 AbstractCegarLoop]: === Iteration 12 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:45:51,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:45:51,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1600413181, now seen corresponding path program 1 times [2018-12-02 03:45:51,316 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:45:51,316 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:45:51,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:45:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:45:51,474 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:45:51,481 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 03:45:51,481 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:51,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:45:51,483 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-02 03:45:51,819 WARN L854 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc13.base| (_ BitVec 32))) (= |c_#valid| (store |c_old(#valid)| |ldv_zalloc_#t~malloc13.base| (_ bv1 1)))) is different from true [2018-12-02 03:45:51,821 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 03:45:51,821 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:51,822 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:45:51,822 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:6, output treesize:5 [2018-12-02 03:45:53,385 WARN L180 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-12-02 03:45:53,389 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-02 03:45:53,389 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:45:53,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-02 03:45:53,393 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-12-02 03:45:54,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:45:54,315 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:45:54,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:45:54,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 03:45:54,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 03:45:54,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 03:45:54,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=36, Unknown=5, NotChecked=12, Total=72 [2018-12-02 03:45:54,318 INFO L87 Difference]: Start difference. First operand 148 states and 152 transitions. Second operand 9 states. [2018-12-02 03:46:06,829 WARN L180 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-02 03:47:25,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:47:25,364 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2018-12-02 03:47:25,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 03:47:25,364 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-12-02 03:47:25,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:47:25,365 INFO L225 Difference]: With dead ends: 159 [2018-12-02 03:47:25,365 INFO L226 Difference]: Without dead ends: 159 [2018-12-02 03:47:25,365 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=42, Invalid=86, Unknown=8, NotChecked=20, Total=156 [2018-12-02 03:47:25,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-12-02 03:47:25,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 143. [2018-12-02 03:47:25,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-12-02 03:47:25,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 147 transitions. [2018-12-02 03:47:25,368 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 147 transitions. Word has length 47 [2018-12-02 03:47:25,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:47:25,368 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 147 transitions. [2018-12-02 03:47:25,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 03:47:25,369 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 147 transitions. [2018-12-02 03:47:25,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 03:47:25,369 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:47:25,369 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:47:25,370 INFO L423 AbstractCegarLoop]: === Iteration 13 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:47:25,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:47:25,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1600413182, now seen corresponding path program 1 times [2018-12-02 03:47:25,370 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:47:25,370 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:47:25,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:47:25,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:47:25,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:47:25,582 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 03:47:25,582 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:47:25,590 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 03:47:25,590 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:47:25,595 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:47:25,595 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-02 03:47:26,479 WARN L854 $PredicateComparison]: unable to prove that (exists ((|ldv_zalloc_#t~malloc13.base| (_ BitVec 32)) (ldv_zalloc_~size (_ BitVec 32))) (and (= (select |c_old(#valid)| |ldv_zalloc_#t~malloc13.base|) (_ bv0 1)) (= |c_#length| (store |c_old(#length)| |ldv_zalloc_#t~malloc13.base| ldv_zalloc_~size)))) is different from true [2018-12-02 03:47:26,482 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-12-02 03:47:26,482 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:47:26,485 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-02 03:47:26,486 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:47:26,487 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:47:26,487 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:12, output treesize:1 [2018-12-02 03:47:26,493 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:47:26,495 INFO L701 Elim1Store]: detected not equals via solver [2018-12-02 03:47:26,495 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-02 03:47:26,495 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-02 03:47:26,510 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-02 03:47:26,510 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-02 03:47:26,517 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 03:47:26,517 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:9 [2018-12-02 03:47:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:47:26,556 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:47:26,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:47:26,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 03:47:26,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 03:47:26,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 03:47:26,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=39, Unknown=1, NotChecked=12, Total=72 [2018-12-02 03:47:26,559 INFO L87 Difference]: Start difference. First operand 143 states and 147 transitions. Second operand 9 states. [2018-12-02 03:47:27,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:47:27,151 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2018-12-02 03:47:27,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 03:47:27,152 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-12-02 03:47:27,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:47:27,152 INFO L225 Difference]: With dead ends: 154 [2018-12-02 03:47:27,152 INFO L226 Difference]: Without dead ends: 154 [2018-12-02 03:47:27,153 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=75, Unknown=1, NotChecked=18, Total=132 [2018-12-02 03:47:27,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-12-02 03:47:27,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 138. [2018-12-02 03:47:27,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-12-02 03:47:27,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 142 transitions. [2018-12-02 03:47:27,155 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 142 transitions. Word has length 47 [2018-12-02 03:47:27,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:47:27,155 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 142 transitions. [2018-12-02 03:47:27,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 03:47:27,155 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 142 transitions. [2018-12-02 03:47:27,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 03:47:27,155 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:47:27,155 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:47:27,155 INFO L423 AbstractCegarLoop]: === Iteration 14 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:47:27,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:47:27,156 INFO L82 PathProgramCache]: Analyzing trace with hash 964230839, now seen corresponding path program 1 times [2018-12-02 03:47:27,156 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:47:27,156 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:47:27,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:47:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:47:27,220 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:47:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:47:27,231 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:47:27,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:47:27,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 03:47:27,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 03:47:27,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 03:47:27,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 03:47:27,233 INFO L87 Difference]: Start difference. First operand 138 states and 142 transitions. Second operand 4 states. [2018-12-02 03:47:27,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:47:27,238 INFO L93 Difference]: Finished difference Result 141 states and 145 transitions. [2018-12-02 03:47:27,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 03:47:27,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-12-02 03:47:27,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:47:27,239 INFO L225 Difference]: With dead ends: 141 [2018-12-02 03:47:27,239 INFO L226 Difference]: Without dead ends: 141 [2018-12-02 03:47:27,239 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 03:47:27,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-12-02 03:47:27,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-12-02 03:47:27,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-12-02 03:47:27,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 145 transitions. [2018-12-02 03:47:27,242 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 145 transitions. Word has length 51 [2018-12-02 03:47:27,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:47:27,242 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 145 transitions. [2018-12-02 03:47:27,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 03:47:27,242 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 145 transitions. [2018-12-02 03:47:27,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-02 03:47:27,243 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:47:27,243 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:47:27,243 INFO L423 AbstractCegarLoop]: === Iteration 15 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:47:27,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:47:27,243 INFO L82 PathProgramCache]: Analyzing trace with hash 55900736, now seen corresponding path program 1 times [2018-12-02 03:47:27,244 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:47:27,244 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:47:27,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:47:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 03:47:27,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 03:47:27,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 03:47:27,369 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 03:47:27,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 03:47:27,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 03:47:27,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 03:47:27,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 03:47:27,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 03:47:27,371 INFO L87 Difference]: Start difference. First operand 141 states and 145 transitions. Second operand 5 states. [2018-12-02 03:47:27,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 03:47:27,379 INFO L93 Difference]: Finished difference Result 138 states and 141 transitions. [2018-12-02 03:47:27,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 03:47:27,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2018-12-02 03:47:27,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 03:47:27,381 INFO L225 Difference]: With dead ends: 138 [2018-12-02 03:47:27,381 INFO L226 Difference]: Without dead ends: 138 [2018-12-02 03:47:27,381 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 03:47:27,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-12-02 03:47:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-12-02 03:47:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-12-02 03:47:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 141 transitions. [2018-12-02 03:47:27,383 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 141 transitions. Word has length 57 [2018-12-02 03:47:27,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 03:47:27,384 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 141 transitions. [2018-12-02 03:47:27,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 03:47:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 141 transitions. [2018-12-02 03:47:27,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-02 03:47:27,384 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 03:47:27,384 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 03:47:27,384 INFO L423 AbstractCegarLoop]: === Iteration 16 === [fetch_itemErr4REQUIRES_VIOLATION, fetch_itemErr3REQUIRES_VIOLATION, fetch_itemErr2REQUIRES_VIOLATION, fetch_itemErr7REQUIRES_VIOLATION, fetch_itemErr1REQUIRES_VIOLATION, fetch_itemErr6REQUIRES_VIOLATION, fetch_itemErr0REQUIRES_VIOLATION, fetch_itemErr5REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, free_reportsErr6REQUIRES_VIOLATION, free_reportsErr1REQUIRES_VIOLATION, free_reportsErr7REQUIRES_VIOLATION, free_reportsErr0REQUIRES_VIOLATION, free_reportsErr2REQUIRES_VIOLATION, free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE, free_reportsErr3REQUIRES_VIOLATION, free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, hid_register_reportErr2REQUIRES_VIOLATION, hid_register_reportErr3REQUIRES_VIOLATION, hid_register_reportErr4REQUIRES_VIOLATION, hid_register_reportErr5REQUIRES_VIOLATION, hid_register_reportErr0REQUIRES_VIOLATION, hid_register_reportErr1REQUIRES_VIOLATION, hid_register_reportErr6REQUIRES_VIOLATION, hid_register_reportErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, hid_open_reportErr1REQUIRES_VIOLATION, hid_open_reportErr0REQUIRES_VIOLATION, hid_open_reportErr10REQUIRES_VIOLATION, hid_open_reportErr6ASSERT_VIOLATIONARRAY_INDEX, hid_open_reportErr8ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr9REQUIRES_VIOLATION, hid_open_reportErr7ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr11ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr12ASSERT_VIOLATIONMEMORY_FREE, hid_open_reportErr5REQUIRES_VIOLATION, hid_open_reportErr4REQUIRES_VIOLATION, hid_open_reportErr3REQUIRES_VIOLATION, hid_open_reportErr2REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, probe_23Err3ASSERT_VIOLATIONMEMORY_FREE, probe_23Err1REQUIRES_VIOLATION, probe_23Err2ASSERT_VIOLATIONMEMORY_FREE, probe_23Err0REQUIRES_VIOLATION, hid_parser_mainErr1REQUIRES_VIOLATION, hid_parser_mainErr0REQUIRES_VIOLATION, hid_parser_mainErr2REQUIRES_VIOLATION, hid_parser_mainErr3REQUIRES_VIOLATION, disconnect_deviceErr1REQUIRES_VIOLATION, disconnect_deviceErr0REQUIRES_VIOLATION, disconnect_deviceErr5ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr4ASSERT_VIOLATIONMEMORY_FREE, disconnect_deviceErr3REQUIRES_VIOLATION, disconnect_deviceErr2REQUIRES_VIOLATION]=== [2018-12-02 03:47:27,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 03:47:27,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1774606150, now seen corresponding path program 1 times [2018-12-02 03:47:27,385 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-02 03:47:27,385 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-02 03:47:27,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 03:47:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:47:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 03:47:27,967 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 03:47:27,988 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~hid_device?report_enum~*hid_report_enum?dev_rdesc~*INT# [2018-12-02 03:47:27,989 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-02 03:47:27,989 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-02 03:47:27,989 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~hid_device?report_enum~*hid_report_enum?dev_rdesc~*INT# [2018-12-02 03:47:27,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:47:27 BoogieIcfgContainer [2018-12-02 03:47:27,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 03:47:27,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 03:47:27,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 03:47:27,999 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 03:47:27,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:45:34" (3/4) ... [2018-12-02 03:47:28,001 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 03:47:28,009 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-02 03:47:28,009 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~hid_device?report_enum~*hid_report_enum?dev_rdesc~*INT# [2018-12-02 03:47:28,010 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-02 03:47:28,010 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~hid_device?report_enum~*hid_report_enum?dev_rdesc~*INT# [2018-12-02 03:47:28,044 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1bf0fb7c-7abd-4320-a27f-21d79b25082d/bin-2019/utaipan/witness.graphml [2018-12-02 03:47:28,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 03:47:28,044 INFO L168 Benchmark]: Toolchain (without parser) took 114993.26 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 264.2 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -303.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:47:28,045 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:47:28,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2018-12-02 03:47:28,045 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:47:28,045 INFO L168 Benchmark]: Boogie Preprocessor took 29.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 03:47:28,046 INFO L168 Benchmark]: RCFGBuilder took 617.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 11.5 GB. [2018-12-02 03:47:28,046 INFO L168 Benchmark]: TraceAbstraction took 113879.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 130.0 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -240.1 MB). Peak memory consumption was 361.6 MB. Max. memory is 11.5 GB. [2018-12-02 03:47:28,046 INFO L168 Benchmark]: Witness Printer took 45.04 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. [2018-12-02 03:47:28,048 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 394.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 617.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.5 MB). Peak memory consumption was 80.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 113879.02 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 130.0 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -240.1 MB). Peak memory consumption was 361.6 MB. Max. memory is 11.5 GB. * Witness Printer took 45.04 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~hid_device?report_enum~*hid_report_enum?dev_rdesc~*INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~hid_device?report_enum~*hid_report_enum?dev_rdesc~*INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~hid_device?report_enum~*hid_report_enum?dev_rdesc~*INT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~hid_device?report_enum~*hid_report_enum?dev_rdesc~*INT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1517]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L1135] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L1558] struct hid_device dev; VAL [\old(dev)=null, \old(dev)=null, \old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, dev={2:0}, ldv_global_msg_list={1:0}] [L1568] CALL entry_point() VAL [dev={2:0}, ldv_global_msg_list={1:0}] [L1561] CALL probe_23(&dev) VAL [dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}] [L1536] int ret = - -3; VAL [dev={2:0}, dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}, ret=3] [L1537] CALL, EXPR ldv_malloc(sizeof(struct hid_report_enum)) VAL [\old(size)=1036, dev={2:0}, ldv_global_msg_list={1:0}] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] return malloc(size); VAL [\old(size)=1036, \result={3:0}, dev={2:0}, ldv_global_msg_list={1:0}, malloc(size)={3:0}, size=1036] [L1537] RET, EXPR ldv_malloc(sizeof(struct hid_report_enum)) VAL [dev={2:0}, dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}, ldv_malloc(sizeof(struct hid_report_enum))={3:0}, ret=3] [L1537] struct hid_report_enum *p = (struct hid_report_enum *)ldv_malloc(sizeof(struct hid_report_enum)); [L1538] COND FALSE !(p==0) VAL [dev={2:0}, dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}, p={3:0}, ret=3] [L1540] CALL LDV_INIT_LIST_HEAD(&p->report_list) VAL [dev={2:0}, ldv_global_msg_list={1:0}, list={3:4}] [L1099] list->next = list VAL [dev={2:0}, ldv_global_msg_list={1:0}, list={3:4}, list={3:4}] [L1100] list->prev = list VAL [dev={2:0}, ldv_global_msg_list={1:0}, list={3:4}, list={3:4}] [L1540] RET LDV_INIT_LIST_HEAD(&p->report_list) VAL [dev={2:0}, dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}, p={3:0}, ret=3] [L1541] dev->report_enum = p VAL [dev={2:0}, dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}, p={3:0}, ret=3] [L1543] CALL hid_open_report(dev) VAL [dev={2:0}, device={2:0}, ldv_global_msg_list={1:0}] [L1503] struct hid_parser *parser; [L1504] struct hid_item item; VAL [dev={2:0}, device={2:0}, device={2:0}, item={6:0}, ldv_global_msg_list={1:0}] [L1505] CALL, EXPR ldv_zalloc(sizeof(struct hid_parser)) VAL [\old(size)=8, dev={2:0}, ldv_global_msg_list={1:0}] [L1081] EXPR, FCALL calloc(size, 1) VAL [\old(size)=8, calloc(size, 1)={-7:0}, dev={2:0}, ldv_global_msg_list={1:0}, size=8] [L1081] return calloc(size, 1); VAL [\old(size)=8, \result={-7:0}, calloc(size, 1)={-7:0}, dev={2:0}, ldv_global_msg_list={1:0}, size=8] [L1505] RET, EXPR ldv_zalloc(sizeof(struct hid_parser)) VAL [dev={2:0}, device={2:0}, device={2:0}, item={6:0}, ldv_global_msg_list={1:0}, ldv_zalloc(sizeof(struct hid_parser))={-7:0}] [L1505] parser = ldv_zalloc(sizeof(struct hid_parser)) [L1506] COND FALSE !(!parser) VAL [dev={2:0}, device={2:0}, device={2:0}, item={6:0}, ldv_global_msg_list={1:0}, parser={-7:0}] [L1509] parser->device = device VAL [dev={2:0}, device={2:0}, device={2:0}, item={6:0}, ldv_global_msg_list={1:0}, parser={-7:0}] [L1510] CALL, EXPR ldv_positive() VAL [dev={2:0}, ldv_global_msg_list={1:0}] [L1064] int r = __VERIFIER_nondet_int(); [L1065] COND TRUE r>0 [L1065] return r; VAL [\result=1, dev={2:0}, ldv_global_msg_list={1:0}, r=1] [L1510] RET, EXPR ldv_positive() VAL [dev={2:0}, device={2:0}, device={2:0}, item={6:0}, ldv_global_msg_list={1:0}, ldv_positive()=1, parser={-7:0}] [L1510] parser->report_id = ldv_positive() VAL [dev={2:0}, device={2:0}, device={2:0}, item={6:0}, ldv_global_msg_list={1:0}, ldv_positive()=1, parser={-7:0}] [L1516] CALL, EXPR fetch_item(&item) VAL [dev={2:0}, item={6:0}, ldv_global_msg_list={1:0}] [L1461] COND FALSE !(__VERIFIER_nondet_int()) [L1464] item->type = 0 VAL [dev={2:0}, item={6:0}, item={6:0}, ldv_global_msg_list={1:0}] [L1465] item->a = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, dev={2:0}, item={6:0}, item={6:0}, ldv_global_msg_list={1:0}] [L1466] item->b = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, dev={2:0}, item={6:0}, item={6:0}, ldv_global_msg_list={1:0}] [L1467] item->c = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, dev={2:0}, item={6:0}, item={6:0}, ldv_global_msg_list={1:0}] [L1468] return 0; VAL [\result=0, dev={2:0}, item={6:0}, item={6:0}, ldv_global_msg_list={1:0}] [L1516] RET, EXPR fetch_item(&item) VAL [dev={2:0}, device={2:0}, device={2:0}, fetch_item(&item)=0, item={6:0}, ldv_global_msg_list={1:0}, parser={-7:0}] [L1516] COND TRUE fetch_item(&item)!=-1 [L1517] EXPR item.type VAL [dev={2:0}, device={2:0}, device={2:0}, item={6:0}, item.type=0, ldv_global_msg_list={1:0}, parser={-7:0}] [L1517] dispatch_type[item.type] VAL [dev={2:0}, device={2:0}, device={2:0}, item={6:0}, item.type=0, ldv_global_msg_list={1:0}, parser={-7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 238 locations, 74 error locations. UNSAFE Result, 113.8s OverallTime, 16 OverallIterations, 1 TraceHistogramMax, 105.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2025 SDtfs, 1234 SDslu, 6095 SDs, 0 SdLazy, 3346 SolverSat, 240 SolverUnsat, 133 SolverUnknown, 0 SolverNotchecked, 93.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 518 GetRequests, 404 SyntacticMatches, 11 SemanticMatches, 103 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 16.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=238occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 204 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 559 NumberOfCodeBlocks, 559 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 486 ConstructedInterpolants, 37 QuantifiedInterpolants, 51863 SizeOfPredicates, 51 NumberOfNonLiveVariables, 2426 ConjunctsInSsa, 140 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...