./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:38:30,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:38:30,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:38:30,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:38:30,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:38:30,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:38:30,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:38:30,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:38:30,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:38:30,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:38:30,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:38:30,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:38:30,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:38:30,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:38:30,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:38:30,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:38:30,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:38:30,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:38:30,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:38:30,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:38:30,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:38:30,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:38:30,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:38:30,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:38:30,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:38:30,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:38:30,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:38:30,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:38:30,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:38:30,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:38:30,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:38:30,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:38:30,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:38:30,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:38:30,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:38:30,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:38:30,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:38:30,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:38:30,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:38:30,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:38:30,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:38:30,934 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:38:30,970 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:38:30,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:38:30,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:38:30,971 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:38:30,972 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:38:30,972 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:38:30,972 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:38:30,972 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:38:30,972 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:38:30,973 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:38:30,973 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:38:30,973 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:38:30,973 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:38:30,973 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:38:30,974 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:38:30,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:38:30,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:38:30,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:38:30,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:38:30,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:38:30,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:38:30,976 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:38:30,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:38:30,976 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:38:30,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:38:30,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:38:30,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:38:30,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:38:30,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:38:30,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:38:30,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:38:30,978 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:38:30,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:38:30,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:38:30,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:38:30,978 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:38:30,979 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 [2021-11-03 05:38:31,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:38:31,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:38:31,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:38:31,246 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:38:31,247 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:38:31,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-03 05:38:31,307 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/data/50860d865/5e599448fe9b4ed8a7319065d6cef83a/FLAG536b29dcb [2021-11-03 05:38:32,269 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:38:32,270 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-03 05:38:32,324 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/data/50860d865/5e599448fe9b4ed8a7319065d6cef83a/FLAG536b29dcb [2021-11-03 05:38:32,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/data/50860d865/5e599448fe9b4ed8a7319065d6cef83a [2021-11-03 05:38:32,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:38:32,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:38:32,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:38:32,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:38:32,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:38:32,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:38:32" (1/1) ... [2021-11-03 05:38:32,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ea4c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:32, skipping insertion in model container [2021-11-03 05:38:32,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:38:32" (1/1) ... [2021-11-03 05:38:32,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:38:32,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:38:34,906 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) 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:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:38:34,913 INFO L168 Benchmark]: Toolchain (without parser) took 2222.93 ms. Allocated memory is still 123.7 MB. Free memory was 91.1 MB in the beginning and 59.9 MB in the end (delta: 31.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:38:34,913 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 102.8 MB. Free memory is still 58.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:38:34,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2220.86 ms. Allocated memory is still 123.7 MB. Free memory was 90.6 MB in the beginning and 59.9 MB in the end (delta: 30.7 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:38:34,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 102.8 MB. Free memory is still 58.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2220.86 ms. Allocated memory is still 123.7 MB. Free memory was 90.6 MB in the beginning and 59.9 MB in the end (delta: 30.7 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:38:37,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:38:37,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:38:37,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:38:37,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:38:37,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:38:37,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:38:37,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:38:37,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:38:37,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:38:37,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:38:37,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:38:37,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:38:37,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:38:37,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:38:37,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:38:37,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:38:37,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:38:37,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:38:37,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:38:37,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:38:37,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:38:37,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:38:37,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:38:37,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:38:37,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:38:37,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:38:37,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:38:37,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:38:37,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:38:37,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:38:37,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:38:37,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:38:37,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:38:37,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:38:37,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:38:37,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:38:37,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:38:37,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:38:37,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:38:37,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:38:37,132 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:38:37,158 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:38:37,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:38:37,159 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:38:37,159 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:38:37,159 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:38:37,159 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:38:37,160 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:38:37,160 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:38:37,160 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:38:37,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:38:37,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:38:37,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:38:37,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:38:37,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:38:37,162 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:38:37,162 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:38:37,162 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:38:37,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:38:37,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:38:37,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:38:37,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:38:37,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:38:37,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:38:37,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:38:37,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:38:37,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:38:37,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:38:37,164 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:38:37,165 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:38:37,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:38:37,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:38:37,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:38:37,165 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 [2021-11-03 05:38:37,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:38:37,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:38:37,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:38:37,554 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:38:37,554 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:38:37,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-03 05:38:37,617 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/data/9c06fa8eb/856901c85fe74bbab4f4279a544dbd7f/FLAGd4bb79fe7 [2021-11-03 05:38:38,874 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:38:38,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-03 05:38:38,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/data/9c06fa8eb/856901c85fe74bbab4f4279a544dbd7f/FLAGd4bb79fe7 [2021-11-03 05:38:39,005 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/data/9c06fa8eb/856901c85fe74bbab4f4279a544dbd7f [2021-11-03 05:38:39,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:38:39,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:38:39,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:38:39,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:38:39,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:38:39,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:38:39" (1/1) ... [2021-11-03 05:38:39,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ad1a1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:39, skipping insertion in model container [2021-11-03 05:38:39,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:38:39" (1/1) ... [2021-11-03 05:38:39,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:38:39,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:38:44,622 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-03 05:38:44,626 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-03 05:38:44,626 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-03 05:38:44,627 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-03 05:38:44,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:38:44,836 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:38:44,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:38:45,354 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-03 05:38:45,355 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-03 05:38:45,356 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-03 05:38:45,356 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-03 05:38:45,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:38:45,489 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:38:46,403 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2021-11-03 05:38:46,404 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2021-11-03 05:38:46,404 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2021-11-03 05:38:46,405 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2021-11-03 05:38:46,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:38:46,849 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:38:46,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46 WrapperNode [2021-11-03 05:38:46,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:38:46,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:38:46,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:38:46,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:38:46,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (1/1) ... [2021-11-03 05:38:47,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (1/1) ... [2021-11-03 05:38:47,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:38:47,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:38:47,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:38:47,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:38:47,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (1/1) ... [2021-11-03 05:38:47,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (1/1) ... [2021-11-03 05:38:47,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (1/1) ... [2021-11-03 05:38:47,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (1/1) ... [2021-11-03 05:38:48,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (1/1) ... [2021-11-03 05:38:48,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (1/1) ... [2021-11-03 05:38:48,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (1/1) ... [2021-11-03 05:38:49,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:38:49,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:38:49,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:38:49,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:38:49,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (1/1) ... [2021-11-03 05:38:49,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:38:49,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:38:49,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:38:49,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:38:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-03 05:38:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-03 05:38:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:38:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 05:38:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:38:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:38:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:38:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2021-11-03 05:38:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2021-11-03 05:38:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2021-11-03 05:38:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-03 05:38:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-03 05:38:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:38:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:38:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:38:49,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:38:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:38:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:38:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:38:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:38:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:38:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:38:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:38:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:38:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:38:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:38:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-03 05:38:49,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-03 05:38:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:38:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:38:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:41:43,671 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0bv32; [2021-11-03 05:41:43,671 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:41:43,672 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 05:41:43,672 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0bv32; [2021-11-03 05:41:43,672 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0bv32; [2021-11-03 05:41:43,672 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0bv32; [2021-11-03 05:41:43,673 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:41:43,674 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0bv32; [2021-11-03 05:41:43,674 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:41:43,675 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-03 05:41:43,675 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:41:43,676 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:41:43,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:41:43,725 INFO L299 CfgBuilder]: Removed 5107 assume(true) statements. [2021-11-03 05:41:43,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:41:43 BoogieIcfgContainer [2021-11-03 05:41:43,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:41:43,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:41:43,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:41:43,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:41:43,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:38:39" (1/3) ... [2021-11-03 05:41:43,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8125c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:41:43, skipping insertion in model container [2021-11-03 05:41:43,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:38:46" (2/3) ... [2021-11-03 05:41:43,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8125c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:41:43, skipping insertion in model container [2021-11-03 05:41:43,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:41:43" (3/3) ... [2021-11-03 05:41:43,740 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-03 05:41:43,746 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:41:43,746 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2021-11-03 05:41:43,814 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:41:43,820 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:41:43,820 INFO L340 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2021-11-03 05:41:43,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 5256 states, 5183 states have (on average 1.3171908161296546) internal successors, (6827), 5236 states have internal predecessors, (6827), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-03 05:41:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-03 05:41:43,932 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:43,933 INFO L513 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, 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, 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] [2021-11-03 05:41:43,934 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 05:41:43,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:43,939 INFO L85 PathProgramCache]: Analyzing trace with hash 932015297, now seen corresponding path program 1 times [2021-11-03 05:41:43,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:43,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165128053] [2021-11-03 05:41:43,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:43,967 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:43,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:43,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:44,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:41:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:56,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 5898 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:41:56,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:57,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:57,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:57,709 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:57,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165128053] [2021-11-03 05:41:57,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165128053] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:57,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:57,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:41:57,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648880709] [2021-11-03 05:41:57,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:41:57,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:57,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:41:57,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:41:57,745 INFO L87 Difference]: Start difference. First operand has 5256 states, 5183 states have (on average 1.3171908161296546) internal successors, (6827), 5236 states have internal predecessors, (6827), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:02,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:02,871 INFO L93 Difference]: Finished difference Result 19060 states and 24946 transitions. [2021-11-03 05:42:02,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:42:02,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2021-11-03 05:42:02,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:02,972 INFO L225 Difference]: With dead ends: 19060 [2021-11-03 05:42:02,973 INFO L226 Difference]: Without dead ends: 13160 [2021-11-03 05:42:03,012 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:03,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13160 states. [2021-11-03 05:42:03,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13160 to 13088. [2021-11-03 05:42:03,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13088 states, 12977 states have (on average 1.240656546197118) internal successors, (16100), 13030 states have internal predecessors, (16100), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2021-11-03 05:42:03,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13088 states to 13088 states and 16190 transitions. [2021-11-03 05:42:03,645 INFO L78 Accepts]: Start accepts. Automaton has 13088 states and 16190 transitions. Word has length 165 [2021-11-03 05:42:03,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:03,651 INFO L470 AbstractCegarLoop]: Abstraction has 13088 states and 16190 transitions. [2021-11-03 05:42:03,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:03,651 INFO L276 IsEmpty]: Start isEmpty. Operand 13088 states and 16190 transitions. [2021-11-03 05:42:03,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-03 05:42:03,663 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:03,664 INFO L513 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, 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, 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] [2021-11-03 05:42:03,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:03,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:03,881 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 05:42:03,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:03,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1822623447, now seen corresponding path program 1 times [2021-11-03 05:42:03,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:03,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95327230] [2021-11-03 05:42:03,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:03,900 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:03,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:03,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:03,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:42:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:17,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 5941 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:42:17,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:17,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:17,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:18,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:18,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95327230] [2021-11-03 05:42:18,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95327230] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:18,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:18,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:42:18,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826833464] [2021-11-03 05:42:18,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:42:18,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:18,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:42:18,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:18,062 INFO L87 Difference]: Start difference. First operand 13088 states and 16190 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:24,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:24,331 INFO L93 Difference]: Finished difference Result 50089 states and 62247 transitions. [2021-11-03 05:42:24,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:42:24,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-11-03 05:42:24,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:24,552 INFO L225 Difference]: With dead ends: 50089 [2021-11-03 05:42:24,552 INFO L226 Difference]: Without dead ends: 37397 [2021-11-03 05:42:24,606 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:24,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37397 states. [2021-11-03 05:42:25,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37397 to 36617. [2021-11-03 05:42:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36617 states, 36392 states have (on average 1.2488184216311278) internal successors, (45447), 36445 states have internal predecessors, (45447), 135 states have call successors, (135), 36 states have call predecessors, (135), 36 states have return successors, (165), 135 states have call predecessors, (165), 135 states have call successors, (165) [2021-11-03 05:42:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36617 states to 36617 states and 45747 transitions. [2021-11-03 05:42:26,140 INFO L78 Accepts]: Start accepts. Automaton has 36617 states and 45747 transitions. Word has length 173 [2021-11-03 05:42:26,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:26,141 INFO L470 AbstractCegarLoop]: Abstraction has 36617 states and 45747 transitions. [2021-11-03 05:42:26,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 36617 states and 45747 transitions. [2021-11-03 05:42:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-03 05:42:26,147 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:26,147 INFO L513 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, 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, 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, 1] [2021-11-03 05:42:26,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:26,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:26,370 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 05:42:26,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:26,370 INFO L85 PathProgramCache]: Analyzing trace with hash -275218893, now seen corresponding path program 1 times [2021-11-03 05:42:26,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:26,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977815261] [2021-11-03 05:42:26,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:26,390 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:26,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:26,391 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:26,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:42:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:40,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 5945 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:42:40,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:40,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:40,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:41,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:41,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977815261] [2021-11-03 05:42:41,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977815261] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:41,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:41,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:42:41,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660322303] [2021-11-03 05:42:41,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:42:41,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:41,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:42:41,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:41,339 INFO L87 Difference]: Start difference. First operand 36617 states and 45747 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:47,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:47,952 INFO L93 Difference]: Finished difference Result 110596 states and 138963 transitions. [2021-11-03 05:42:47,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:42:47,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-11-03 05:42:47,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:48,265 INFO L225 Difference]: With dead ends: 110596 [2021-11-03 05:42:48,268 INFO L226 Difference]: Without dead ends: 74375 [2021-11-03 05:42:48,388 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:42:48,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74375 states. [2021-11-03 05:42:51,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74375 to 74171. [2021-11-03 05:42:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74171 states, 73733 states have (on average 1.2569270204657346) internal successors, (92677), 73786 states have internal predecessors, (92677), 300 states have call successors, (300), 84 states have call predecessors, (300), 84 states have return successors, (360), 300 states have call predecessors, (360), 300 states have call successors, (360) [2021-11-03 05:42:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74171 states to 74171 states and 93337 transitions. [2021-11-03 05:42:52,231 INFO L78 Accepts]: Start accepts. Automaton has 74171 states and 93337 transitions. Word has length 175 [2021-11-03 05:42:52,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:52,231 INFO L470 AbstractCegarLoop]: Abstraction has 74171 states and 93337 transitions. [2021-11-03 05:42:52,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:52,233 INFO L276 IsEmpty]: Start isEmpty. Operand 74171 states and 93337 transitions. [2021-11-03 05:42:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-03 05:42:52,237 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:52,237 INFO L513 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, 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, 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, 1, 1, 1, 1] [2021-11-03 05:42:52,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:52,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:52,454 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 05:42:52,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:52,455 INFO L85 PathProgramCache]: Analyzing trace with hash 897569508, now seen corresponding path program 1 times [2021-11-03 05:42:52,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:52,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558435203] [2021-11-03 05:42:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:52,464 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:52,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:52,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:52,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:43:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:43:05,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 5970 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:43:05,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:05,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:05,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:43:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:06,130 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:43:06,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558435203] [2021-11-03 05:43:06,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558435203] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:43:06,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:43:06,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:43:06,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965491657] [2021-11-03 05:43:06,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:43:06,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:43:06,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:43:06,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:43:06,133 INFO L87 Difference]: Start difference. First operand 74171 states and 93337 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:16,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:43:16,155 INFO L93 Difference]: Finished difference Result 286431 states and 362001 transitions. [2021-11-03 05:43:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:43:16,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2021-11-03 05:43:16,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:43:17,357 INFO L225 Difference]: With dead ends: 286431 [2021-11-03 05:43:17,357 INFO L226 Difference]: Without dead ends: 212656 [2021-11-03 05:43:17,591 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:43:17,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212656 states. [2021-11-03 05:43:25,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212656 to 210176. [2021-11-03 05:43:25,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210176 states, 208970 states have (on average 1.260037325931952) internal successors, (263310), 209023 states have internal predecessors, (263310), 900 states have call successors, (900), 252 states have call predecessors, (900), 252 states have return successors, (1920), 900 states have call predecessors, (1920), 900 states have call successors, (1920) [2021-11-03 05:43:27,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210176 states to 210176 states and 266130 transitions. [2021-11-03 05:43:27,020 INFO L78 Accepts]: Start accepts. Automaton has 210176 states and 266130 transitions. Word has length 178 [2021-11-03 05:43:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:43:27,020 INFO L470 AbstractCegarLoop]: Abstraction has 210176 states and 266130 transitions. [2021-11-03 05:43:27,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:43:27,021 INFO L276 IsEmpty]: Start isEmpty. Operand 210176 states and 266130 transitions. [2021-11-03 05:43:27,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-03 05:43:27,031 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:43:27,031 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:43:27,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 05:43:27,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:43:27,254 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [##fun~$Pointer$~TO~C_INTErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~C_INTErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-03 05:43:27,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:43:27,254 INFO L85 PathProgramCache]: Analyzing trace with hash -174817095, now seen corresponding path program 1 times [2021-11-03 05:43:27,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:43:27,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627485743] [2021-11-03 05:43:27,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:27,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:43:27,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:43:27,264 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:43:27,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b004390-4aca-453f-81ab-fda8deca6626/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process