./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:34:49,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:34:49,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:34:49,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:34:49,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:34:49,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:34:49,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:34:49,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:34:49,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:34:49,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:34:49,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:34:49,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:34:49,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:34:49,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:34:49,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:34:49,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:34:49,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:34:49,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:34:49,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:34:49,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:34:49,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:34:49,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:34:49,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:34:49,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:34:49,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:34:49,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:34:49,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:34:49,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:34:49,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:34:49,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:34:49,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:34:49,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:34:49,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:34:49,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:34:49,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:34:49,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:34:49,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:34:49,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:34:49,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:34:49,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:34:49,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:34:49,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:34:49,914 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:34:49,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:34:49,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:34:49,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:34:49,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:34:49,916 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:34:49,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:34:49,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:34:49,917 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:34:49,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:34:49,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:34:49,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:34:49,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:34:49,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:34:49,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:34:49,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:34:49,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:34:49,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:34:49,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:34:49,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:34:49,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:34:49,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:34:49,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:34:49,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:34:49,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:34:49,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:34:49,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:34:49,922 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:34:49,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:34:49,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:34:49,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 [2022-11-20 11:34:50,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:34:50,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:34:50,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:34:50,235 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:34:50,236 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:34:50,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-20 11:34:53,376 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:34:54,148 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:34:54,149 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-20 11:34:54,214 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/data/61282aa11/eb838ac6bea147a6ac1f2e8cb4b3eea9/FLAG8678fa7c7 [2022-11-20 11:34:54,235 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/data/61282aa11/eb838ac6bea147a6ac1f2e8cb4b3eea9 [2022-11-20 11:34:54,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:34:54,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:34:54,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:34:54,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:34:54,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:34:54,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:34:54" (1/1) ... [2022-11-20 11:34:54,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba1ebad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:34:54, skipping insertion in model container [2022-11-20 11:34:54,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:34:54" (1/1) ... [2022-11-20 11:34:54,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:34:54,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:34:55,209 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) 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:1087) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) 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:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) 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) [2022-11-20 11:34:55,217 INFO L158 Benchmark]: Toolchain (without parser) took 971.42ms. Allocated memory is still 176.2MB. Free memory was 122.6MB in the beginning and 112.4MB in the end (delta: 10.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 11:34:55,217 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:34:55,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 964.91ms. Allocated memory is still 176.2MB. Free memory was 122.2MB in the beginning and 112.4MB in the end (delta: 9.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 11:34:55,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 964.91ms. Allocated memory is still 176.2MB. Free memory was 122.2MB in the beginning and 112.4MB in the end (delta: 9.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:34:58,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:34:58,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:34:58,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:34:58,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:34:58,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:34:58,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:34:58,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:34:58,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:34:58,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:34:58,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:34:58,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:34:58,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:34:58,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:34:58,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:34:58,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:34:58,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:34:58,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:34:58,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:34:58,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:34:58,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:34:58,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:34:58,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:34:58,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:34:58,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:34:58,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:34:58,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:34:58,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:34:58,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:34:58,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:34:58,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:34:58,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:34:58,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:34:58,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:34:58,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:34:58,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:34:58,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:34:58,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:34:58,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:34:58,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:34:58,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:34:58,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:34:58,216 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:34:58,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:34:58,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:34:58,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:34:58,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:34:58,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:34:58,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:34:58,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:34:58,223 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:34:58,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:34:58,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:34:58,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:34:58,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:34:58,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:34:58,226 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:34:58,227 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:34:58,227 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:34:58,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:34:58,228 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:34:58,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:34:58,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:34:58,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:34:58,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:34:58,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:34:58,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:34:58,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:34:58,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:34:58,230 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:34:58,231 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:34:58,231 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:34:58,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:34:58,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:34:58,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:34:58,232 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 [2022-11-20 11:34:58,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:34:58,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:34:58,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:34:58,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:34:58,775 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:34:58,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-20 11:35:02,441 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:35:03,259 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:35:03,260 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-20 11:35:03,328 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/data/888eb57d1/a427305f96884233b8617267a11c053f/FLAG645bff359 [2022-11-20 11:35:03,344 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/data/888eb57d1/a427305f96884233b8617267a11c053f [2022-11-20 11:35:03,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:35:03,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:35:03,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:35:03,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:35:03,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:35:03,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:03" (1/1) ... [2022-11-20 11:35:03,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64a057f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:03, skipping insertion in model container [2022-11-20 11:35:03,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:03" (1/1) ... [2022-11-20 11:35:03,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:35:03,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:35:06,491 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2022-11-20 11:35:06,496 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2022-11-20 11:35:06,496 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2022-11-20 11:35:06,497 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2022-11-20 11:35:06,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:35:06,643 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:35:06,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:35:07,253 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2022-11-20 11:35:07,254 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2022-11-20 11:35:07,255 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2022-11-20 11:35:07,256 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2022-11-20 11:35:07,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:35:07,298 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:35:08,041 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2022-11-20 11:35:08,043 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2022-11-20 11:35:08,043 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2022-11-20 11:35:08,044 WARN L237 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_d5f281bb-2dd9-4a25-ba40-1abe84218954/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2022-11-20 11:35:08,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:35:08,400 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:35:08,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08 WrapperNode [2022-11-20 11:35:08,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:35:08,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:35:08,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:35:08,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:35:08,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:08,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:08,745 INFO L138 Inliner]: procedures = 401, calls = 2496, calls flagged for inlining = 201, calls inlined = 150, statements flattened = 4694 [2022-11-20 11:35:08,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:35:08,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:35:08,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:35:08,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:35:08,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:08,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:08,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:08,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:08,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:08,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:08,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:09,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:09,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:35:09,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:35:09,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:35:09,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:35:09,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (1/1) ... [2022-11-20 11:35:09,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:35:09,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:35:09,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:35:09,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:35:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 11:35:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 11:35:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:35:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:35:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-20 11:35:09,175 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-20 11:35:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:35:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:35:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 11:35:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 11:35:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_stereo_mono [2022-11-20 11:35:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_stereo_mono [2022-11-20 11:35:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:35:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:35:09,177 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_len [2022-11-20 11:35:09,177 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_len [2022-11-20 11:35:09,178 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-20 11:35:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-20 11:35:09,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:35:09,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:35:09,180 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 11:35:09,180 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 11:35:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-20 11:35:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-20 11:35:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:35:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:35:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 11:35:09,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 11:35:09,181 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 11:35:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 11:35:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:35:09,182 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-20 11:35:09,182 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-20 11:35:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:35:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:35:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:35:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:35:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure st_unregister [2022-11-20 11:35:09,183 INFO L138 BoogieDeclarations]: Found implementation of procedure st_unregister [2022-11-20 11:35:09,183 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 11:35:09,184 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 11:35:09,185 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 11:35:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 11:35:09,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:35:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:35:09,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_fmdev [2022-11-20 11:35:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_fmdev [2022-11-20 11:35:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_release [2022-11-20 11:35:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_release [2022-11-20 11:35:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:35:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:35:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_fmdev [2022-11-20 11:35:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_fmdev [2022-11-20 11:35:09,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 11:35:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 11:35:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 11:35:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 11:35:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_set_rds_mode [2022-11-20 11:35:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_set_rds_mode [2022-11-20 11:35:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-20 11:35:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-20 11:35:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-11-20 11:35:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-11-20 11:35:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_rds_mode [2022-11-20 11:35:09,188 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_rds_mode [2022-11-20 11:35:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:35:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 11:35:09,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 11:35:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 11:35:09,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 11:35:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 11:35:09,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 11:35:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-20 11:35:09,190 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-20 11:35:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:35:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:35:09,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:35:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:35:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:35:09,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:35:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:35:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-20 11:35:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-20 11:35:09,193 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-20 11:35:09,193 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-20 11:35:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_preemph_filter [2022-11-20 11:35:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_preemph_filter [2022-11-20 11:35:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-20 11:35:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-20 11:35:09,194 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 11:35:09,194 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 11:35:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 11:35:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 11:35:09,195 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 11:35:09,195 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 11:35:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:35:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:35:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:35:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:35:09,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-20 11:35:09,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-20 11:35:09,197 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 11:35:09,199 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 11:35:09,202 INFO L130 BoogieDeclarations]: Found specification of procedure fm_config_rx_mute_reg [2022-11-20 11:35:09,203 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_config_rx_mute_reg [2022-11-20 11:35:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:35:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-20 11:35:09,204 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-20 11:35:09,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:35:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:35:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:35:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:35:09,211 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_data_mode [2022-11-20 11:35:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_data_mode [2022-11-20 11:35:09,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:35:09,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:35:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_pwr_lvl [2022-11-20 11:35:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_pwr_lvl [2022-11-20 11:35:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-20 11:35:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-20 11:35:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_prepare [2022-11-20 11:35:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_prepare [2022-11-20 11:35:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_send_cmd [2022-11-20 11:35:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_send_cmd [2022-11-20 11:35:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-20 11:35:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-20 11:35:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure fm_send_cmd [2022-11-20 11:35:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_send_cmd [2022-11-20 11:35:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 11:35:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 11:35:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:35:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:35:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure fm_irq_call_stage [2022-11-20 11:35:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_irq_call_stage [2022-11-20 11:35:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-20 11:35:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-20 11:35:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-20 11:35:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-20 11:35:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:35:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fm_drv_exit_6_2 [2022-11-20 11:35:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fm_drv_exit_6_2 [2022-11-20 11:35:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:35:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:35:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_reset_rds_cache [2022-11-20 11:35:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_reset_rds_cache [2022-11-20 11:35:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:35:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_reset_station_info [2022-11-20 11:35:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_reset_station_info [2022-11-20 11:35:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:35:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:35:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:35:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 11:35:09,305 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 11:35:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~int_handler_prototype~0 [2022-11-20 11:35:09,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~int_handler_prototype~0 [2022-11-20 11:35:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure enable_xmit [2022-11-20 11:35:09,306 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_xmit [2022-11-20 11:35:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-20 11:35:09,306 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-20 11:35:09,306 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_set_volume [2022-11-20 11:35:09,309 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_set_volume [2022-11-20 11:35:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 11:35:09,309 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 11:35:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-20 11:35:09,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-20 11:35:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 11:35:09,310 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 11:35:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:35:09,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:35:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:35:09,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:35:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_mutex_of_fmdev [2022-11-20 11:35:09,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_mutex_of_fmdev [2022-11-20 11:35:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_text [2022-11-20 11:35:09,311 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_text [2022-11-20 11:35:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-20 11:35:09,311 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-20 11:35:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 11:35:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 11:35:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:35:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:35:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:35:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:35:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 11:35:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 11:35:09,313 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-20 11:35:09,313 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-20 11:35:09,313 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-20 11:35:09,313 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-20 11:35:09,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:35:09,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:35:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:35:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:35:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:35:09,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:35:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 11:35:09,314 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 11:35:09,314 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_set_freq [2022-11-20 11:35:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_set_freq [2022-11-20 11:35:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_set_mode [2022-11-20 11:35:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_set_mode [2022-11-20 11:35:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure fm_v4l2_fops_write [2022-11-20 11:35:09,315 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_v4l2_fops_write [2022-11-20 11:35:09,315 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 11:35:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 11:35:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure fm_irq_call [2022-11-20 11:35:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_irq_call [2022-11-20 11:35:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:35:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:35:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 11:35:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 11:35:09,317 INFO L130 BoogieDeclarations]: Found specification of procedure fm_power_down [2022-11-20 11:35:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_power_down [2022-11-20 11:35:09,317 INFO L130 BoogieDeclarations]: Found specification of procedure fm_download_firmware [2022-11-20 11:35:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_download_firmware [2022-11-20 11:35:09,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 11:35:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 11:35:10,537 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:35:10,542 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:35:10,832 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:35:39,756 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 11:35:39,966 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:35:39,984 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:35:39,985 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:35:39,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:39 BoogieIcfgContainer [2022-11-20 11:35:39,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:35:39,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:35:39,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:35:39,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:35:39,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:35:03" (1/3) ... [2022-11-20 11:35:39,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f11a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:39, skipping insertion in model container [2022-11-20 11:35:39,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:08" (2/3) ... [2022-11-20 11:35:39,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f11a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:39, skipping insertion in model container [2022-11-20 11:35:39,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:39" (3/3) ... [2022-11-20 11:35:39,999 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2022-11-20 11:35:40,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:35:40,021 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 11:35:40,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:35:40,122 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34f04f94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:35:40,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 11:35:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand has 1665 states, 1160 states have (on average 1.318103448275862) internal successors, (1529), 1176 states have internal predecessors, (1529), 410 states have call successors, (410), 93 states have call predecessors, (410), 92 states have return successors, (403), 400 states have call predecessors, (403), 403 states have call successors, (403) [2022-11-20 11:35:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-11-20 11:35:40,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:35:40,160 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:35:40,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:35:40,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:35:40,169 INFO L85 PathProgramCache]: Analyzing trace with hash 722411318, now seen corresponding path program 1 times [2022-11-20 11:35:40,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:35:40,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521298913] [2022-11-20 11:35:40,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:35:40,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:35:40,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:35:40,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:35:40,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 11:35:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:35:41,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 2152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:35:41,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:35:42,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-11-20 11:35:42,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:35:42,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:35:42,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521298913] [2022-11-20 11:35:42,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521298913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:35:42,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:35:42,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:35:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607013239] [2022-11-20 11:35:42,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:35:42,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:35:42,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:35:42,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:35:42,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:35:42,291 INFO L87 Difference]: Start difference. First operand has 1665 states, 1160 states have (on average 1.318103448275862) internal successors, (1529), 1176 states have internal predecessors, (1529), 410 states have call successors, (410), 93 states have call predecessors, (410), 92 states have return successors, (403), 400 states have call predecessors, (403), 403 states have call successors, (403) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 11:35:43,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:35:43,449 INFO L93 Difference]: Finished difference Result 4724 states and 6703 transitions. [2022-11-20 11:35:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:35:43,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 241 [2022-11-20 11:35:43,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:35:43,489 INFO L225 Difference]: With dead ends: 4724 [2022-11-20 11:35:43,489 INFO L226 Difference]: Without dead ends: 3091 [2022-11-20 11:35:43,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:35:43,512 INFO L413 NwaCegarLoop]: 2677 mSDtfsCounter, 2151 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 4844 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:35:43,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 4844 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:35:43,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2022-11-20 11:35:43,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 3087. [2022-11-20 11:35:43,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3087 states, 2174 states have (on average 1.3201471941122356) internal successors, (2870), 2204 states have internal predecessors, (2870), 735 states have call successors, (735), 176 states have call predecessors, (735), 175 states have return successors, (731), 725 states have call predecessors, (731), 731 states have call successors, (731) [2022-11-20 11:35:43,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 4336 transitions. [2022-11-20 11:35:43,856 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 4336 transitions. Word has length 241 [2022-11-20 11:35:43,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:35:43,864 INFO L495 AbstractCegarLoop]: Abstraction has 3087 states and 4336 transitions. [2022-11-20 11:35:43,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 11:35:43,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 4336 transitions. [2022-11-20 11:35:43,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-20 11:35:43,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:35:43,887 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:35:43,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:35:44,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:35:44,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:35:44,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:35:44,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2043684690, now seen corresponding path program 1 times [2022-11-20 11:35:44,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:35:44,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810386478] [2022-11-20 11:35:44,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:35:44,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:35:44,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:35:44,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:35:44,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 11:35:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:35:45,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:35:45,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:35:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-11-20 11:35:46,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:35:46,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:35:46,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810386478] [2022-11-20 11:35:46,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810386478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:35:46,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:35:46,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:35:46,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117311911] [2022-11-20 11:35:46,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:35:46,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:35:46,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:35:46,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:35:46,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:35:46,093 INFO L87 Difference]: Start difference. First operand 3087 states and 4336 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 11:35:47,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:35:47,104 INFO L93 Difference]: Finished difference Result 6185 states and 8560 transitions. [2022-11-20 11:35:47,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:35:47,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 267 [2022-11-20 11:35:47,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:35:47,132 INFO L225 Difference]: With dead ends: 6185 [2022-11-20 11:35:47,133 INFO L226 Difference]: Without dead ends: 3141 [2022-11-20 11:35:47,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:35:47,149 INFO L413 NwaCegarLoop]: 2564 mSDtfsCounter, 1052 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 4796 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:35:47,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 4796 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:35:47,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2022-11-20 11:35:47,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 3120. [2022-11-20 11:35:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 2183 states have (on average 1.2922583600549702) internal successors, (2821), 2225 states have internal predecessors, (2821), 713 states have call successors, (713), 222 states have call predecessors, (713), 221 states have return successors, (709), 695 states have call predecessors, (709), 709 states have call successors, (709) [2022-11-20 11:35:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 4243 transitions. [2022-11-20 11:35:47,333 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 4243 transitions. Word has length 267 [2022-11-20 11:35:47,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:35:47,335 INFO L495 AbstractCegarLoop]: Abstraction has 3120 states and 4243 transitions. [2022-11-20 11:35:47,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 11:35:47,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 4243 transitions. [2022-11-20 11:35:47,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-20 11:35:47,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:35:47,345 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:35:47,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-20 11:35:47,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:35:47,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:35:47,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:35:47,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1743261002, now seen corresponding path program 1 times [2022-11-20 11:35:47,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:35:47,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90496470] [2022-11-20 11:35:47,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:35:47,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:35:47,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:35:47,574 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:35:47,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 11:35:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:35:49,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 2284 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:35:49,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:35:49,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 1719 trivial. 0 not checked. [2022-11-20 11:35:49,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:35:49,562 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:35:49,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90496470] [2022-11-20 11:35:49,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90496470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:35:49,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:35:49,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:35:49,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641702427] [2022-11-20 11:35:49,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:35:49,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:35:49,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:35:49,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:35:49,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:35:49,565 INFO L87 Difference]: Start difference. First operand 3120 states and 4243 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 11:35:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:35:50,454 INFO L93 Difference]: Finished difference Result 7663 states and 10494 transitions. [2022-11-20 11:35:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:35:50,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 302 [2022-11-20 11:35:50,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:35:50,493 INFO L225 Difference]: With dead ends: 7663 [2022-11-20 11:35:50,493 INFO L226 Difference]: Without dead ends: 5190 [2022-11-20 11:35:50,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:35:50,512 INFO L413 NwaCegarLoop]: 4284 mSDtfsCounter, 2009 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 6558 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:35:50,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 6558 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:35:50,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5190 states. [2022-11-20 11:35:50,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5190 to 5186. [2022-11-20 11:35:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 3650 states have (on average 1.3013698630136987) internal successors, (4750), 3713 states have internal predecessors, (4750), 1176 states have call successors, (1176), 358 states have call predecessors, (1176), 357 states have return successors, (1172), 1152 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-20 11:35:50,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 7098 transitions. [2022-11-20 11:35:50,829 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 7098 transitions. Word has length 302 [2022-11-20 11:35:50,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:35:50,830 INFO L495 AbstractCegarLoop]: Abstraction has 5186 states and 7098 transitions. [2022-11-20 11:35:50,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-20 11:35:50,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 7098 transitions. [2022-11-20 11:35:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-20 11:35:50,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:35:50,839 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:35:50,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:35:51,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:35:51,063 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:35:51,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:35:51,063 INFO L85 PathProgramCache]: Analyzing trace with hash -357057608, now seen corresponding path program 1 times [2022-11-20 11:35:51,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:35:51,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077362451] [2022-11-20 11:35:51,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:35:51,067 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:35:51,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:35:51,087 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:35:51,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 11:35:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:35:52,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 2284 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:35:52,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:35:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1803 trivial. 0 not checked. [2022-11-20 11:35:55,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:35:55,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:35:55,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077362451] [2022-11-20 11:35:55,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077362451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:35:55,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:35:55,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:35:55,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201860443] [2022-11-20 11:35:55,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:35:55,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:35:55,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:35:55,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:35:55,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:35:55,120 INFO L87 Difference]: Start difference. First operand 5186 states and 7098 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-20 11:35:56,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:35:56,074 INFO L93 Difference]: Finished difference Result 5192 states and 7103 transitions. [2022-11-20 11:35:56,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:35:56,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 302 [2022-11-20 11:35:56,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:35:56,113 INFO L225 Difference]: With dead ends: 5192 [2022-11-20 11:35:56,114 INFO L226 Difference]: Without dead ends: 5190 [2022-11-20 11:35:56,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:35:56,121 INFO L413 NwaCegarLoop]: 2310 mSDtfsCounter, 2191 mSDsluCounter, 4614 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 6924 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:35:56,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2192 Valid, 6924 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:35:56,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5190 states. [2022-11-20 11:35:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5190 to 5190. [2022-11-20 11:35:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5190 states, 3653 states have (on average 1.3011223651793047) internal successors, (4753), 3716 states have internal predecessors, (4753), 1176 states have call successors, (1176), 359 states have call predecessors, (1176), 358 states have return successors, (1172), 1152 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-20 11:35:56,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5190 states to 5190 states and 7101 transitions. [2022-11-20 11:35:56,525 INFO L78 Accepts]: Start accepts. Automaton has 5190 states and 7101 transitions. Word has length 302 [2022-11-20 11:35:56,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:35:56,526 INFO L495 AbstractCegarLoop]: Abstraction has 5190 states and 7101 transitions. [2022-11-20 11:35:56,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-20 11:35:56,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5190 states and 7101 transitions. [2022-11-20 11:35:56,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-11-20 11:35:56,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:35:56,538 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:35:56,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:35:56,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:35:56,755 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:35:56,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:35:56,756 INFO L85 PathProgramCache]: Analyzing trace with hash 836647597, now seen corresponding path program 1 times [2022-11-20 11:35:56,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:35:56,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767767871] [2022-11-20 11:35:56,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:35:56,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:35:56,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:35:56,760 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:35:56,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 11:35:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:35:58,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 2291 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:35:58,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:01,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1803 trivial. 0 not checked. [2022-11-20 11:36:01,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1803 trivial. 0 not checked. [2022-11-20 11:36:02,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:02,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767767871] [2022-11-20 11:36:02,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767767871] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:02,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:36:02,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:36:02,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509545070] [2022-11-20 11:36:02,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:02,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:36:02,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:02,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:36:02,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:36:02,242 INFO L87 Difference]: Start difference. First operand 5190 states and 7101 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:36:03,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:03,205 INFO L93 Difference]: Finished difference Result 5196 states and 7106 transitions. [2022-11-20 11:36:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:36:03,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 307 [2022-11-20 11:36:03,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:03,328 INFO L225 Difference]: With dead ends: 5196 [2022-11-20 11:36:03,329 INFO L226 Difference]: Without dead ends: 5194 [2022-11-20 11:36:03,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 607 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:36:03,332 INFO L413 NwaCegarLoop]: 2313 mSDtfsCounter, 2238 mSDsluCounter, 4613 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:03,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 6926 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:36:03,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5194 states. [2022-11-20 11:36:03,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5194 to 5194. [2022-11-20 11:36:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5194 states, 3656 states have (on average 1.3008752735229758) internal successors, (4756), 3719 states have internal predecessors, (4756), 1176 states have call successors, (1176), 360 states have call predecessors, (1176), 359 states have return successors, (1172), 1152 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-20 11:36:03,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 5194 states and 7104 transitions. [2022-11-20 11:36:03,808 INFO L78 Accepts]: Start accepts. Automaton has 5194 states and 7104 transitions. Word has length 307 [2022-11-20 11:36:03,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:03,809 INFO L495 AbstractCegarLoop]: Abstraction has 5194 states and 7104 transitions. [2022-11-20 11:36:03,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:36:03,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5194 states and 7104 transitions. [2022-11-20 11:36:03,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-20 11:36:03,822 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:03,823 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:36:03,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:04,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:04,047 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:36:04,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:04,048 INFO L85 PathProgramCache]: Analyzing trace with hash 390522008, now seen corresponding path program 1 times [2022-11-20 11:36:04,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:04,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968273214] [2022-11-20 11:36:04,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:04,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:04,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:04,053 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:36:04,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 11:36:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:05,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 2298 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:36:05,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1811 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1807 trivial. 0 not checked. [2022-11-20 11:36:08,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:09,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1811 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1807 trivial. 0 not checked. [2022-11-20 11:36:09,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:09,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968273214] [2022-11-20 11:36:09,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968273214] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:09,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:36:09,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:36:09,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703390797] [2022-11-20 11:36:09,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:09,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:36:09,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:09,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:36:09,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:36:09,085 INFO L87 Difference]: Start difference. First operand 5194 states and 7104 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 11:36:09,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:09,978 INFO L93 Difference]: Finished difference Result 5200 states and 7109 transitions. [2022-11-20 11:36:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:36:09,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 312 [2022-11-20 11:36:09,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:10,019 INFO L225 Difference]: With dead ends: 5200 [2022-11-20 11:36:10,020 INFO L226 Difference]: Without dead ends: 5198 [2022-11-20 11:36:10,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:36:10,025 INFO L413 NwaCegarLoop]: 2313 mSDtfsCounter, 2238 mSDsluCounter, 4613 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:10,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2241 Valid, 6926 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:36:10,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5198 states. [2022-11-20 11:36:10,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5198 to 5198. [2022-11-20 11:36:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 3659 states have (on average 1.3006285870456409) internal successors, (4759), 3722 states have internal predecessors, (4759), 1176 states have call successors, (1176), 361 states have call predecessors, (1176), 360 states have return successors, (1172), 1152 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-20 11:36:10,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 7107 transitions. [2022-11-20 11:36:10,481 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 7107 transitions. Word has length 312 [2022-11-20 11:36:10,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:10,483 INFO L495 AbstractCegarLoop]: Abstraction has 5198 states and 7107 transitions. [2022-11-20 11:36:10,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 11:36:10,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 7107 transitions. [2022-11-20 11:36:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-20 11:36:10,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:10,490 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:36:10,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:10,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:10,715 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:36:10,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:10,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1191169357, now seen corresponding path program 1 times [2022-11-20 11:36:10,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:10,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146885714] [2022-11-20 11:36:10,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:10,717 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:10,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:10,718 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:36:10,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 11:36:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:12,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 2305 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:36:12,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:14,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1815 trivial. 0 not checked. [2022-11-20 11:36:14,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1815 trivial. 0 not checked. [2022-11-20 11:36:15,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:15,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146885714] [2022-11-20 11:36:15,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146885714] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:15,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:36:15,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:36:15,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621858470] [2022-11-20 11:36:15,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:15,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:36:15,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:15,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:36:15,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:36:15,671 INFO L87 Difference]: Start difference. First operand 5198 states and 7107 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 11:36:16,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:16,572 INFO L93 Difference]: Finished difference Result 5204 states and 7112 transitions. [2022-11-20 11:36:16,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:36:16,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 317 [2022-11-20 11:36:16,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:16,611 INFO L225 Difference]: With dead ends: 5204 [2022-11-20 11:36:16,611 INFO L226 Difference]: Without dead ends: 5202 [2022-11-20 11:36:16,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:36:16,616 INFO L413 NwaCegarLoop]: 2313 mSDtfsCounter, 2238 mSDsluCounter, 4613 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:16,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2240 Valid, 6926 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:36:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5202 states. [2022-11-20 11:36:17,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5202 to 5202. [2022-11-20 11:36:17,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5202 states, 3662 states have (on average 1.300382304751502) internal successors, (4762), 3725 states have internal predecessors, (4762), 1176 states have call successors, (1176), 362 states have call predecessors, (1176), 361 states have return successors, (1172), 1152 states have call predecessors, (1172), 1172 states have call successors, (1172) [2022-11-20 11:36:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 5202 states and 7110 transitions. [2022-11-20 11:36:17,144 INFO L78 Accepts]: Start accepts. Automaton has 5202 states and 7110 transitions. Word has length 317 [2022-11-20 11:36:17,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:17,145 INFO L495 AbstractCegarLoop]: Abstraction has 5202 states and 7110 transitions. [2022-11-20 11:36:17,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-20 11:36:17,146 INFO L276 IsEmpty]: Start isEmpty. Operand 5202 states and 7110 transitions. [2022-11-20 11:36:17,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-11-20 11:36:17,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:17,153 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:36:17,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:17,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:17,375 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:36:17,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:17,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1070864057, now seen corresponding path program 1 times [2022-11-20 11:36:17,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:17,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704522841] [2022-11-20 11:36:17,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:17,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:17,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:17,379 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:36:17,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 11:36:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:19,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 2449 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:36:19,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 1590 trivial. 0 not checked. [2022-11-20 11:36:19,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:36:19,278 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:19,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704522841] [2022-11-20 11:36:19,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704522841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:19,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:19,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:36:19,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332177856] [2022-11-20 11:36:19,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:19,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:36:19,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:19,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:36:19,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:36:19,283 INFO L87 Difference]: Start difference. First operand 5202 states and 7110 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-20 11:36:20,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:20,443 INFO L93 Difference]: Finished difference Result 14169 states and 19398 transitions. [2022-11-20 11:36:20,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:36:20,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 332 [2022-11-20 11:36:20,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:20,484 INFO L225 Difference]: With dead ends: 14169 [2022-11-20 11:36:20,484 INFO L226 Difference]: Without dead ends: 9010 [2022-11-20 11:36:20,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:36:20,508 INFO L413 NwaCegarLoop]: 2693 mSDtfsCounter, 2133 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:20,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 4964 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:36:20,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9010 states. [2022-11-20 11:36:21,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9010 to 8971. [2022-11-20 11:36:21,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8971 states, 6367 states have (on average 1.3018690120936076) internal successors, (8289), 6486 states have internal predecessors, (8289), 1989 states have call successors, (1989), 613 states have call predecessors, (1989), 612 states have return successors, (1985), 1941 states have call predecessors, (1985), 1985 states have call successors, (1985) [2022-11-20 11:36:21,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8971 states to 8971 states and 12263 transitions. [2022-11-20 11:36:21,281 INFO L78 Accepts]: Start accepts. Automaton has 8971 states and 12263 transitions. Word has length 332 [2022-11-20 11:36:21,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:21,281 INFO L495 AbstractCegarLoop]: Abstraction has 8971 states and 12263 transitions. [2022-11-20 11:36:21,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (37), 3 states have call predecessors, (37), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-20 11:36:21,282 INFO L276 IsEmpty]: Start isEmpty. Operand 8971 states and 12263 transitions. [2022-11-20 11:36:21,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-11-20 11:36:21,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:21,289 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:36:21,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:21,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:21,504 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:36:21,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:21,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1133651320, now seen corresponding path program 1 times [2022-11-20 11:36:21,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:21,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872899259] [2022-11-20 11:36:21,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:21,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:21,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:21,509 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:36:21,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 11:36:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:23,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 2312 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:36:23,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:25,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1835 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1827 trivial. 0 not checked. [2022-11-20 11:36:25,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1835 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1827 trivial. 0 not checked. [2022-11-20 11:36:26,735 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:26,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872899259] [2022-11-20 11:36:26,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872899259] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:26,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:36:26,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:36:26,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334825303] [2022-11-20 11:36:26,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:26,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:36:26,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:26,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:36:26,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:36:26,738 INFO L87 Difference]: Start difference. First operand 8971 states and 12263 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-20 11:36:28,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:28,514 INFO L93 Difference]: Finished difference Result 17385 states and 23825 transitions. [2022-11-20 11:36:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:36:28,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 322 [2022-11-20 11:36:28,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:28,609 INFO L225 Difference]: With dead ends: 17385 [2022-11-20 11:36:28,609 INFO L226 Difference]: Without dead ends: 17381 [2022-11-20 11:36:28,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:36:28,620 INFO L413 NwaCegarLoop]: 2989 mSDtfsCounter, 2214 mSDsluCounter, 8205 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 11194 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:28,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 11194 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:36:28,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17381 states. [2022-11-20 11:36:29,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17381 to 17273. [2022-11-20 11:36:30,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17273 states, 12240 states have (on average 1.303921568627451) internal successors, (15960), 12484 states have internal predecessors, (15960), 3852 states have call successors, (3852), 1185 states have call predecessors, (3852), 1178 states have return successors, (3874), 3733 states have call predecessors, (3874), 3844 states have call successors, (3874) [2022-11-20 11:36:30,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17273 states to 17273 states and 23686 transitions. [2022-11-20 11:36:30,179 INFO L78 Accepts]: Start accepts. Automaton has 17273 states and 23686 transitions. Word has length 322 [2022-11-20 11:36:30,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:30,180 INFO L495 AbstractCegarLoop]: Abstraction has 17273 states and 23686 transitions. [2022-11-20 11:36:30,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-20 11:36:30,180 INFO L276 IsEmpty]: Start isEmpty. Operand 17273 states and 23686 transitions. [2022-11-20 11:36:30,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-20 11:36:30,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:30,198 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 6, 5, 5, 2, 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] [2022-11-20 11:36:30,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:30,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:30,411 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:36:30,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:30,412 INFO L85 PathProgramCache]: Analyzing trace with hash 950294070, now seen corresponding path program 1 times [2022-11-20 11:36:30,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:30,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060772861] [2022-11-20 11:36:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:30,415 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:30,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:30,417 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:36:30,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 11:36:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:32,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 2375 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:36:32,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:32,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1841 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 1769 trivial. 0 not checked. [2022-11-20 11:36:32,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:36:32,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:32,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060772861] [2022-11-20 11:36:32,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060772861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:32,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:32,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:36:32,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105370565] [2022-11-20 11:36:32,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:32,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:36:32,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:32,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:36:32,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:36:32,267 INFO L87 Difference]: Start difference. First operand 17273 states and 23686 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-20 11:36:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:34,384 INFO L93 Difference]: Finished difference Result 41785 states and 57457 transitions. [2022-11-20 11:36:34,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:36:34,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 337 [2022-11-20 11:36:34,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:34,494 INFO L225 Difference]: With dead ends: 41785 [2022-11-20 11:36:34,494 INFO L226 Difference]: Without dead ends: 24953 [2022-11-20 11:36:34,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:36:34,561 INFO L413 NwaCegarLoop]: 4269 mSDtfsCounter, 2031 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 6545 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:34,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 6545 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:36:34,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24953 states. [2022-11-20 11:36:36,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24953 to 24893. [2022-11-20 11:36:36,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24893 states, 17684 states have (on average 1.3071703234562315) internal successors, (23116), 18021 states have internal predecessors, (23116), 5532 states have call successors, (5532), 1683 states have call predecessors, (5532), 1674 states have return successors, (5569), 5376 states have call predecessors, (5569), 5524 states have call successors, (5569) [2022-11-20 11:36:36,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24893 states to 24893 states and 34217 transitions. [2022-11-20 11:36:36,979 INFO L78 Accepts]: Start accepts. Automaton has 24893 states and 34217 transitions. Word has length 337 [2022-11-20 11:36:36,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:36,980 INFO L495 AbstractCegarLoop]: Abstraction has 24893 states and 34217 transitions. [2022-11-20 11:36:36,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-20 11:36:36,981 INFO L276 IsEmpty]: Start isEmpty. Operand 24893 states and 34217 transitions. [2022-11-20 11:36:36,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-20 11:36:36,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:36,988 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:36:37,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:37,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:37,203 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:36:37,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:37,204 INFO L85 PathProgramCache]: Analyzing trace with hash -969652243, now seen corresponding path program 1 times [2022-11-20 11:36:37,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:37,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659926492] [2022-11-20 11:36:37,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:37,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:37,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:37,209 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:36:37,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 11:36:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:38,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 2319 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:36:38,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1843 trivial. 0 not checked. [2022-11-20 11:36:41,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:36:42,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1843 trivial. 0 not checked. [2022-11-20 11:36:42,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:42,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659926492] [2022-11-20 11:36:42,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659926492] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:36:42,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:36:42,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 11:36:42,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309181595] [2022-11-20 11:36:42,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:42,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:36:42,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:42,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:36:42,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:36:42,231 INFO L87 Difference]: Start difference. First operand 24893 states and 34217 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 11:36:44,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:36:44,617 INFO L93 Difference]: Finished difference Result 24899 states and 34222 transitions. [2022-11-20 11:36:44,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:36:44,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 327 [2022-11-20 11:36:44,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:36:44,735 INFO L225 Difference]: With dead ends: 24899 [2022-11-20 11:36:44,735 INFO L226 Difference]: Without dead ends: 24286 [2022-11-20 11:36:44,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:36:44,750 INFO L413 NwaCegarLoop]: 2314 mSDtfsCounter, 2238 mSDsluCounter, 4615 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 6929 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:36:44,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 6929 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:36:44,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24286 states. [2022-11-20 11:36:47,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24286 to 24286. [2022-11-20 11:36:47,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24286 states, 17255 states have (on average 1.3082584758041147) internal successors, (22574), 17567 states have internal predecessors, (22574), 5408 states have call successors, (5408), 1628 states have call predecessors, (5408), 1620 states have return successors, (5449), 5268 states have call predecessors, (5449), 5404 states have call successors, (5449) [2022-11-20 11:36:47,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24286 states to 24286 states and 33431 transitions. [2022-11-20 11:36:47,278 INFO L78 Accepts]: Start accepts. Automaton has 24286 states and 33431 transitions. Word has length 327 [2022-11-20 11:36:47,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:36:47,279 INFO L495 AbstractCegarLoop]: Abstraction has 24286 states and 33431 transitions. [2022-11-20 11:36:47,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-20 11:36:47,280 INFO L276 IsEmpty]: Start isEmpty. Operand 24286 states and 33431 transitions. [2022-11-20 11:36:47,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-20 11:36:47,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:36:47,299 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 20, 20, 20, 20, 20, 20, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-20 11:36:47,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:36:47,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:47,515 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:36:47,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:36:47,515 INFO L85 PathProgramCache]: Analyzing trace with hash -572106494, now seen corresponding path program 1 times [2022-11-20 11:36:47,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:36:47,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919470180] [2022-11-20 11:36:47,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:36:47,518 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:36:47,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:36:47,519 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:36:47,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 11:36:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:36:49,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 2461 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 11:36:49,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:36:50,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2254 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 1681 trivial. 0 not checked. [2022-11-20 11:36:50,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:36:50,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:36:50,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919470180] [2022-11-20 11:36:50,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919470180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:36:50,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:36:50,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 11:36:50,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837309313] [2022-11-20 11:36:50,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:36:50,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 11:36:50,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:36:50,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 11:36:50,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-20 11:36:50,123 INFO L87 Difference]: Start difference. First operand 24286 states and 33431 transitions. Second operand has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2022-11-20 11:37:08,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:37:08,691 INFO L93 Difference]: Finished difference Result 63119 states and 86968 transitions. [2022-11-20 11:37:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:37:08,692 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) Word has length 382 [2022-11-20 11:37:08,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:37:08,836 INFO L225 Difference]: With dead ends: 63119 [2022-11-20 11:37:08,836 INFO L226 Difference]: Without dead ends: 38312 [2022-11-20 11:37:08,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:37:08,910 INFO L413 NwaCegarLoop]: 4079 mSDtfsCounter, 5272 mSDsluCounter, 34321 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 1054 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5290 SdHoareTripleChecker+Valid, 38400 SdHoareTripleChecker+Invalid, 3304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1054 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:37:08,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5290 Valid, 38400 Invalid, 3304 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1054 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2022-11-20 11:37:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38312 states. [2022-11-20 11:37:12,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38312 to 30512. [2022-11-20 11:37:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30512 states, 21677 states have (on average 1.3103750518983255) internal successors, (28405), 22055 states have internal predecessors, (28405), 6817 states have call successors, (6817), 2025 states have call predecessors, (6817), 2015 states have return successors, (6870), 6649 states have call predecessors, (6870), 6813 states have call successors, (6870) [2022-11-20 11:37:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30512 states to 30512 states and 42092 transitions. [2022-11-20 11:37:12,850 INFO L78 Accepts]: Start accepts. Automaton has 30512 states and 42092 transitions. Word has length 382 [2022-11-20 11:37:12,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:37:12,852 INFO L495 AbstractCegarLoop]: Abstraction has 30512 states and 42092 transitions. [2022-11-20 11:37:12,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 6 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2022-11-20 11:37:12,852 INFO L276 IsEmpty]: Start isEmpty. Operand 30512 states and 42092 transitions. [2022-11-20 11:37:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-11-20 11:37:12,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:37:12,865 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 20, 20, 20, 20, 20, 20, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:37:12,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:37:13,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:37:13,079 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:37:13,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:13,079 INFO L85 PathProgramCache]: Analyzing trace with hash 852872131, now seen corresponding path program 1 times [2022-11-20 11:37:13,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:37:13,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883653540] [2022-11-20 11:37:13,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:13,083 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:37:13,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:37:13,084 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:37:13,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 11:37:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:14,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 11:37:14,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:37:15,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 598 proven. 0 refuted. 0 times theorem prover too weak. 1752 trivial. 0 not checked. [2022-11-20 11:37:15,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:37:15,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:37:15,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883653540] [2022-11-20 11:37:15,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883653540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:15,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:15,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:37:15,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487995956] [2022-11-20 11:37:15,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:15,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:37:15,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:37:15,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:37:15,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:37:15,667 INFO L87 Difference]: Start difference. First operand 30512 states and 42092 transitions. Second operand has 10 states, 10 states have (on average 14.9) internal successors, (149), 8 states have internal predecessors, (149), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (39), 4 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-20 11:37:21,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:37:21,946 INFO L93 Difference]: Finished difference Result 66427 states and 92536 transitions. [2022-11-20 11:37:21,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:37:21,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 8 states have internal predecessors, (149), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (39), 4 states have call predecessors, (39), 2 states have call successors, (39) Word has length 412 [2022-11-20 11:37:21,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:37:22,130 INFO L225 Difference]: With dead ends: 66427 [2022-11-20 11:37:22,131 INFO L226 Difference]: Without dead ends: 36354 [2022-11-20 11:37:22,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:37:22,241 INFO L413 NwaCegarLoop]: 3274 mSDtfsCounter, 686 mSDsluCounter, 25366 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 28640 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:37:22,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 28640 Invalid, 69 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-20 11:37:22,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36354 states. [2022-11-20 11:37:26,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36354 to 30590. [2022-11-20 11:37:26,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30590 states, 21739 states have (on average 1.3094898569391415) internal successors, (28467), 22118 states have internal predecessors, (28467), 6817 states have call successors, (6817), 2025 states have call predecessors, (6817), 2031 states have return successors, (6893), 6664 states have call predecessors, (6893), 6813 states have call successors, (6893) [2022-11-20 11:37:26,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30590 states to 30590 states and 42177 transitions. [2022-11-20 11:37:26,764 INFO L78 Accepts]: Start accepts. Automaton has 30590 states and 42177 transitions. Word has length 412 [2022-11-20 11:37:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:37:26,765 INFO L495 AbstractCegarLoop]: Abstraction has 30590 states and 42177 transitions. [2022-11-20 11:37:26,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.9) internal successors, (149), 8 states have internal predecessors, (149), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (39), 4 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-20 11:37:26,766 INFO L276 IsEmpty]: Start isEmpty. Operand 30590 states and 42177 transitions. [2022-11-20 11:37:26,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2022-11-20 11:37:26,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:37:26,780 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 20, 20, 20, 20, 20, 20, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-20 11:37:26,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:37:26,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:37:26,995 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:37:26,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:37:26,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1812936802, now seen corresponding path program 1 times [2022-11-20 11:37:26,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:37:26,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565678365] [2022-11-20 11:37:26,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:37:26,998 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:37:26,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:37:26,999 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:37:27,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5f281bb-2dd9-4a25-ba40-1abe84218954/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 11:37:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:37:29,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 2733 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:37:29,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:37:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2435 backedges. 586 proven. 0 refuted. 0 times theorem prover too weak. 1849 trivial. 0 not checked. [2022-11-20 11:37:29,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:37:29,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:37:29,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565678365] [2022-11-20 11:37:29,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565678365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:37:29,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:37:29,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:37:29,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565937242] [2022-11-20 11:37:29,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:37:29,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:37:29,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:37:29,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:37:29,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:37:29,389 INFO L87 Difference]: Start difference. First operand 30590 states and 42177 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41)