./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-spinlock_drivers-net-ethernet-8390-axnet_cs.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_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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_27b696b2-f6a9-495c-9e86-25ce744a4176/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 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b --- 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 11:11:05,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:11:05,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:11:05,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:11:05,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:11:05,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:11:05,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:11:05,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:11:05,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:11:05,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:11:05,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:11:05,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:11:05,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:11:05,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:11:05,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:11:05,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:11:05,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:11:05,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:11:05,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:11:05,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:11:05,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:11:05,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:11:05,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:11:05,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:11:05,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:11:05,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:11:05,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:11:05,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:11:05,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:11:05,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:11:05,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:11:05,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:11:05,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:11:05,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:11:05,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:11:05,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:11:05,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:11:05,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:11:05,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:11:05,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:11:05,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:11:05,793 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:11:05,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:11:05,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:11:05,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:11:05,834 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:11:05,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:11:05,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:11:05,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:11:05,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:11:05,836 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:11:05,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:11:05,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:11:05,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:11:05,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:11:05,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:11:05,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:11:05,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:11:05,839 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:11:05,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:11:05,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:11:05,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:11:05,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:11:05,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:11:05,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:11:05,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:11:05,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:11:05,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:11:05,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:11:05,842 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:11:05,843 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:11:05,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:11:05,843 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_27b696b2-f6a9-495c-9e86-25ce744a4176/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b [2022-11-20 11:11:06,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:11:06,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:11:06,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:11:06,121 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:11:06,122 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:11:06,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2022-11-20 11:11:09,144 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:11:09,753 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:11:09,753 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2022-11-20 11:11:09,801 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/data/5814de815/fa0d60ed54d74f68847ad25953e0ed23/FLAG8ebbd9411 [2022-11-20 11:11:09,815 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/data/5814de815/fa0d60ed54d74f68847ad25953e0ed23 [2022-11-20 11:11:09,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:11:09,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:11:09,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:11:09,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:11:09,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:11:09,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:11:09" (1/1) ... [2022-11-20 11:11:09,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2707246e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:09, skipping insertion in model container [2022-11-20 11:11:09,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:11:09" (1/1) ... [2022-11-20 11:11:09,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:11:09,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:11:10,619 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 11:11:10,628 INFO L158 Benchmark]: Toolchain (without parser) took 807.57ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 107.3MB in the beginning and 139.1MB in the end (delta: -31.8MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2022-11-20 11:11:10,629 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 159.4MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:11:10,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.22ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 106.8MB in the beginning and 139.1MB in the end (delta: -32.3MB). Peak memory consumption was 68.4MB. Max. memory is 16.1GB. [2022-11-20 11:11:10,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 159.4MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.22ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 106.8MB in the beginning and 139.1MB in the end (delta: -32.3MB). Peak memory consumption was 68.4MB. 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_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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_27b696b2-f6a9-495c-9e86-25ce744a4176/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 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b --- 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 11:11:13,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:11:13,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:11:13,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:11:13,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:11:13,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:11:13,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:11:13,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:11:13,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:11:13,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:11:13,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:11:13,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:11:13,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:11:13,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:11:13,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:11:13,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:11:13,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:11:13,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:11:13,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:11:13,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:11:13,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:11:13,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:11:13,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:11:13,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:11:13,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:11:13,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:11:13,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:11:13,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:11:13,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:11:13,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:11:13,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:11:13,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:11:13,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:11:13,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:11:13,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:11:13,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:11:13,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:11:13,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:11:13,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:11:13,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:11:13,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:11:13,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:11:13,148 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:11:13,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:11:13,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:11:13,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:11:13,151 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:11:13,151 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:11:13,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:11:13,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:11:13,153 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:11:13,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:11:13,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:11:13,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:11:13,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:11:13,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:11:13,155 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:11:13,156 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:11:13,156 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:11:13,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:11:13,157 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:11:13,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:11:13,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:11:13,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:11:13,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:11:13,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:11:13,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:11:13,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:11:13,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:11:13,160 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:11:13,161 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:11:13,161 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:11:13,161 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:11:13,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:11:13,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:11:13,162 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_27b696b2-f6a9-495c-9e86-25ce744a4176/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b [2022-11-20 11:11:13,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:11:13,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:11:13,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:11:13,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:11:13,609 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:11:13,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2022-11-20 11:11:16,722 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:11:17,331 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:11:17,331 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2022-11-20 11:11:17,378 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/data/8046b4320/b396d66cc31f46c289d805fdbbf2dfc8/FLAGb441b9123 [2022-11-20 11:11:17,397 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/data/8046b4320/b396d66cc31f46c289d805fdbbf2dfc8 [2022-11-20 11:11:17,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:11:17,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:11:17,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:11:17,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:11:17,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:11:17,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:11:17" (1/1) ... [2022-11-20 11:11:17,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b820c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:17, skipping insertion in model container [2022-11-20 11:11:17,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:11:17" (1/1) ... [2022-11-20 11:11:17,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:11:17,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:11:20,133 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2022-11-20 11:11:20,138 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2022-11-20 11:11:20,139 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2022-11-20 11:11:20,139 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2022-11-20 11:11:20,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:11:20,237 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:11:20,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:11:20,924 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2022-11-20 11:11:20,925 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2022-11-20 11:11:20,925 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2022-11-20 11:11:20,926 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2022-11-20 11:11:20,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:11:20,972 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:11:21,372 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2022-11-20 11:11:21,373 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2022-11-20 11:11:21,374 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2022-11-20 11:11:21,375 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_27b696b2-f6a9-495c-9e86-25ce744a4176/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2022-11-20 11:11:21,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:11:21,622 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:11:21,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21 WrapperNode [2022-11-20 11:11:21,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:11:21,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:11:21,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:11:21,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:11:21,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:21,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:21,934 INFO L138 Inliner]: procedures = 385, calls = 2251, calls flagged for inlining = 172, calls inlined = 152, statements flattened = 4023 [2022-11-20 11:11:21,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:11:21,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:11:21,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:11:21,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:11:21,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:21,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:21,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:21,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:22,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:22,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:22,109 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:22,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:22,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:11:22,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:11:22,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:11:22,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:11:22,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (1/1) ... [2022-11-20 11:11:22,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:11:22,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:11:22,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:11:22,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:11:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~$Pointer$~X~C_INT~TO~VOID [2022-11-20 11:11:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~$Pointer$~X~C_INT~TO~VOID [2022-11-20 11:11:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_page_lock_of_ei_device [2022-11-20 11:11:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_page_lock_of_ei_device [2022-11-20 11:11:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_detach [2022-11-20 11:11:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_detach [2022-11-20 11:11:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 11:11:22,241 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 11:11:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure AX88190_init [2022-11-20 11:11:22,241 INFO L138 BoogieDeclarations]: Found implementation of procedure AX88190_init [2022-11-20 11:11:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:11:22,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:11:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_70 [2022-11-20 11:11:22,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_70 [2022-11-20 11:11:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:11:22,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:11:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure ei_receive [2022-11-20 11:11:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_receive [2022-11-20 11:11:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_release [2022-11-20 11:11:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_release [2022-11-20 11:11:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_write_config_byte [2022-11-20 11:11:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_write_config_byte [2022-11-20 11:11:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:11:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:11:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-20 11:11:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-20 11:11:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:11:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:11:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure NS8390_trigger_send [2022-11-20 11:11:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure NS8390_trigger_send [2022-11-20 11:11:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:11:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:11:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:11:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:11:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:11:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 11:11:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 11:11:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:11:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:11:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 11:11:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 11:11:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 11:11:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 11:11:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_tx_timeout [2022-11-20 11:11:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_tx_timeout [2022-11-20 11:11:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:11:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:11:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:11:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-11-20 11:11:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-11-20 11:11:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 11:11:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 11:11:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:11:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:11:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:11:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:11:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:11:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:11:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:11:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:11:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:11:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:11:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:11:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 11:11:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 11:11:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-11-20 11:11:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-11-20 11:11:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure do_set_multicast_list [2022-11-20 11:11:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure do_set_multicast_list [2022-11-20 11:11:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:11:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 11:11:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 11:11:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:11:22,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:11:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:11:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:11:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:11:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:11:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:11:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:11:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:11:22,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:11:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:11:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:11:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-11-20 11:11:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-11-20 11:11:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 11:11:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 11:11:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:11:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:11:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_axnet_cs_driver_exit_14_2 [2022-11-20 11:11:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_axnet_cs_driver_exit_14_2 [2022-11-20 11:11:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 11:11:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 11:11:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2022-11-20 11:11:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2022-11-20 11:11:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2022-11-20 11:11:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2022-11-20 11:11:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 11:11:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 11:11:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:11:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 11:11:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 11:11:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:11:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 11:11:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 11:11:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:11:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure ei_tx_intr [2022-11-20 11:11:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_tx_intr [2022-11-20 11:11:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:11:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:11:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:11:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:11:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 11:11:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 11:11:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-20 11:11:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-20 11:11:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:11:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:11:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-11-20 11:11:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-11-20 11:11:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 11:11:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 11:11:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure ei_irq_wrapper [2022-11-20 11:11:22,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_irq_wrapper [2022-11-20 11:11:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:11:22,316 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:11:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:11:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:11:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:11:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:11:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:11:22,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:11:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_reset_8390 [2022-11-20 11:11:22,317 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_reset_8390 [2022-11-20 11:11:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_cs_driver_exit [2022-11-20 11:11:22,319 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_cs_driver_exit [2022-11-20 11:11:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:11:22,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:11:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-20 11:11:22,319 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-20 11:11:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 11:11:22,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 11:11:23,110 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:11:23,115 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:11:27,508 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:11:58,192 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 11:11:58,429 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:11:58,450 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:11:58,450 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:11:58,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:11:58 BoogieIcfgContainer [2022-11-20 11:11:58,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:11:58,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:11:58,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:11:58,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:11:58,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:11:17" (1/3) ... [2022-11-20 11:11:58,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb49059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:11:58, skipping insertion in model container [2022-11-20 11:11:58,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:21" (2/3) ... [2022-11-20 11:11:58,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb49059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:11:58, skipping insertion in model container [2022-11-20 11:11:58,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:11:58" (3/3) ... [2022-11-20 11:11:58,465 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2022-11-20 11:11:58,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:11:58,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 11:11:58,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:11:58,608 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;@257fe84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:11:58,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 11:11:58,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 1241 states, 816 states have (on average 1.2892156862745099) internal successors, (1052), 840 states have internal predecessors, (1052), 368 states have call successors, (368), 56 states have call predecessors, (368), 55 states have return successors, (362), 354 states have call predecessors, (362), 362 states have call successors, (362) [2022-11-20 11:11:58,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-20 11:11:58,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:11:58,645 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:11:58,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:11:58,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:11:58,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1610503380, now seen corresponding path program 1 times [2022-11-20 11:11:58,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:11:58,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142961967] [2022-11-20 11:11:58,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:11:58,684 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 11:11:58,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:11:58,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:11:58,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:00,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:12:00,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:00,942 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-20 11:12:00,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:12:00,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:00,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142961967] [2022-11-20 11:12:00,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142961967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:00,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:00,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:12:00,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784815261] [2022-11-20 11:12:00,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:00,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:12:00,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:00,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:12:00,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:00,991 INFO L87 Difference]: Start difference. First operand has 1241 states, 816 states have (on average 1.2892156862745099) internal successors, (1052), 840 states have internal predecessors, (1052), 368 states have call successors, (368), 56 states have call predecessors, (368), 55 states have return successors, (362), 354 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 11:12:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:02,028 INFO L93 Difference]: Finished difference Result 3592 states and 5235 transitions. [2022-11-20 11:12:02,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:12:02,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2022-11-20 11:12:02,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:02,059 INFO L225 Difference]: With dead ends: 3592 [2022-11-20 11:12:02,059 INFO L226 Difference]: Without dead ends: 2360 [2022-11-20 11:12:02,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 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 11:12:02,073 INFO L413 NwaCegarLoop]: 2103 mSDtfsCounter, 1650 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 3818 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:02,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 3818 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:12:02,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2022-11-20 11:12:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2356. [2022-11-20 11:12:02,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 1564 states have (on average 1.2845268542199488) internal successors, (2009), 1609 states have internal predecessors, (2009), 683 states have call successors, (683), 107 states have call predecessors, (683), 106 states have return successors, (679), 663 states have call predecessors, (679), 679 states have call successors, (679) [2022-11-20 11:12:02,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 3371 transitions. [2022-11-20 11:12:02,368 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 3371 transitions. Word has length 105 [2022-11-20 11:12:02,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:02,370 INFO L495 AbstractCegarLoop]: Abstraction has 2356 states and 3371 transitions. [2022-11-20 11:12:02,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 11:12:02,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 3371 transitions. [2022-11-20 11:12:02,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-20 11:12:02,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:02,389 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:12:02,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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)] Ended with exit code 0 [2022-11-20 11:12:02,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:02,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:12:02,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:02,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1673772115, now seen corresponding path program 1 times [2022-11-20 11:12:02,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:02,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964824192] [2022-11-20 11:12:02,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:02,613 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 11:12:02,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:02,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:02,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:04,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 2293 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:12:04,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:04,698 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-20 11:12:04,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:12:04,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:04,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964824192] [2022-11-20 11:12:04,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964824192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:04,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:04,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:12:04,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195414188] [2022-11-20 11:12:04,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:04,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:12:04,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:04,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:12:04,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:04,704 INFO L87 Difference]: Start difference. First operand 2356 states and 3371 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 11:12:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:05,795 INFO L93 Difference]: Finished difference Result 6602 states and 9427 transitions. [2022-11-20 11:12:05,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:12:05,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2022-11-20 11:12:05,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:05,832 INFO L225 Difference]: With dead ends: 6602 [2022-11-20 11:12:05,832 INFO L226 Difference]: Without dead ends: 4265 [2022-11-20 11:12:05,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 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 11:12:05,849 INFO L413 NwaCegarLoop]: 2120 mSDtfsCounter, 1403 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 3812 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:05,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 3812 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 11:12:05,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4265 states. [2022-11-20 11:12:06,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4265 to 4234. [2022-11-20 11:12:06,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 2802 states have (on average 1.2801570306923626) internal successors, (3587), 2884 states have internal predecessors, (3587), 1222 states have call successors, (1222), 206 states have call predecessors, (1222), 207 states have return successors, (1224), 1189 states have call predecessors, (1224), 1218 states have call successors, (1224) [2022-11-20 11:12:06,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6033 transitions. [2022-11-20 11:12:06,266 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6033 transitions. Word has length 114 [2022-11-20 11:12:06,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:06,267 INFO L495 AbstractCegarLoop]: Abstraction has 4234 states and 6033 transitions. [2022-11-20 11:12:06,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 11:12:06,267 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6033 transitions. [2022-11-20 11:12:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-20 11:12:06,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:06,279 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 11:12:06,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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)] Forceful destruction successful, exit code 0 [2022-11-20 11:12:06,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:06,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:12:06,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:06,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1550865851, now seen corresponding path program 1 times [2022-11-20 11:12:06,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:06,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038197439] [2022-11-20 11:12:06,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:06,499 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 11:12:06,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:06,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:06,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:07,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 2367 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:12:07,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-20 11:12:08,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:12:08,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:08,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038197439] [2022-11-20 11:12:08,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038197439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:08,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:08,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:12:08,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707415643] [2022-11-20 11:12:08,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:08,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:12:08,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:08,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:12:08,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:08,210 INFO L87 Difference]: Start difference. First operand 4234 states and 6033 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 11:12:09,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:09,118 INFO L93 Difference]: Finished difference Result 11614 states and 16453 transitions. [2022-11-20 11:12:09,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:12:09,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2022-11-20 11:12:09,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:09,173 INFO L225 Difference]: With dead ends: 11614 [2022-11-20 11:12:09,173 INFO L226 Difference]: Without dead ends: 7399 [2022-11-20 11:12:09,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 11:12:09,204 INFO L413 NwaCegarLoop]: 2065 mSDtfsCounter, 1383 mSDsluCounter, 1699 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 3764 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:09,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 3764 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:12:09,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7399 states. [2022-11-20 11:12:09,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7399 to 7366. [2022-11-20 11:12:09,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7366 states, 4870 states have (on average 1.2659137577002053) internal successors, (6165), 5008 states have internal predecessors, (6165), 2108 states have call successors, (2108), 388 states have call predecessors, (2108), 385 states have return successors, (2116), 2035 states have call predecessors, (2116), 2104 states have call successors, (2116) [2022-11-20 11:12:09,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7366 states to 7366 states and 10389 transitions. [2022-11-20 11:12:09,832 INFO L78 Accepts]: Start accepts. Automaton has 7366 states and 10389 transitions. Word has length 119 [2022-11-20 11:12:09,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:09,833 INFO L495 AbstractCegarLoop]: Abstraction has 7366 states and 10389 transitions. [2022-11-20 11:12:09,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 11:12:09,834 INFO L276 IsEmpty]: Start isEmpty. Operand 7366 states and 10389 transitions. [2022-11-20 11:12:09,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-20 11:12:09,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:09,837 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 11:12:09,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:10,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:10,063 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:12:10,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:10,063 INFO L85 PathProgramCache]: Analyzing trace with hash -434415385, now seen corresponding path program 1 times [2022-11-20 11:12:10,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:10,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792432939] [2022-11-20 11:12:10,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:10,067 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 11:12:10,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:10,069 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:10,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:11,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 2542 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:12:11,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-11-20 11:12:11,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:12:11,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:11,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792432939] [2022-11-20 11:12:11,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792432939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:11,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:11,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:12:11,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175677998] [2022-11-20 11:12:11,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:11,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:12:11,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:11,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:12:11,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:11,757 INFO L87 Difference]: Start difference. First operand 7366 states and 10389 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 11:12:13,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:13,216 INFO L93 Difference]: Finished difference Result 13072 states and 18391 transitions. [2022-11-20 11:12:13,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:12:13,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 143 [2022-11-20 11:12:13,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:13,253 INFO L225 Difference]: With dead ends: 13072 [2022-11-20 11:12:13,253 INFO L226 Difference]: Without dead ends: 5725 [2022-11-20 11:12:13,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 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 11:12:13,286 INFO L413 NwaCegarLoop]: 2417 mSDtfsCounter, 1576 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:13,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1576 Valid, 3339 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 11:12:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-11-20 11:12:13,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 5674. [2022-11-20 11:12:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5674 states, 3804 states have (on average 1.251577287066246) internal successors, (4761), 3948 states have internal predecessors, (4761), 1551 states have call successors, (1551), 355 states have call predecessors, (1551), 316 states have return successors, (1583), 1405 states have call predecessors, (1583), 1547 states have call successors, (1583) [2022-11-20 11:12:13,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5674 states to 5674 states and 7895 transitions. [2022-11-20 11:12:13,751 INFO L78 Accepts]: Start accepts. Automaton has 5674 states and 7895 transitions. Word has length 143 [2022-11-20 11:12:13,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:13,752 INFO L495 AbstractCegarLoop]: Abstraction has 5674 states and 7895 transitions. [2022-11-20 11:12:13,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-20 11:12:13,754 INFO L276 IsEmpty]: Start isEmpty. Operand 5674 states and 7895 transitions. [2022-11-20 11:12:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 11:12:13,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:13,758 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-11-20 11:12:13,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:13,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:13,971 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:12:13,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:13,971 INFO L85 PathProgramCache]: Analyzing trace with hash 165665412, now seen corresponding path program 1 times [2022-11-20 11:12:13,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:13,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597150502] [2022-11-20 11:12:13,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:13,974 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 11:12:13,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:13,976 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:13,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:15,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 2350 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:12:15,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-11-20 11:12:15,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:12:15,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:15,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597150502] [2022-11-20 11:12:15,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597150502] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:15,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:15,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:12:15,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965830770] [2022-11-20 11:12:15,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:15,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:12:15,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:15,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:12:15,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:15,676 INFO L87 Difference]: Start difference. First operand 5674 states and 7895 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 11:12:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:16,890 INFO L93 Difference]: Finished difference Result 16371 states and 22828 transitions. [2022-11-20 11:12:16,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:12:16,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2022-11-20 11:12:16,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:16,984 INFO L225 Difference]: With dead ends: 16371 [2022-11-20 11:12:16,984 INFO L226 Difference]: Without dead ends: 10786 [2022-11-20 11:12:17,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 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 11:12:17,010 INFO L413 NwaCegarLoop]: 3126 mSDtfsCounter, 1614 mSDsluCounter, 1724 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 4850 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:17,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 4850 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 11:12:17,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10786 states. [2022-11-20 11:12:17,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10786 to 10782. [2022-11-20 11:12:17,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10782 states, 7246 states have (on average 1.2514490753519183) internal successors, (9068), 7504 states have internal predecessors, (9068), 2932 states have call successors, (2932), 674 states have call predecessors, (2932), 601 states have return successors, (3000), 2673 states have call predecessors, (3000), 2928 states have call successors, (3000) [2022-11-20 11:12:17,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10782 states to 10782 states and 15000 transitions. [2022-11-20 11:12:17,923 INFO L78 Accepts]: Start accepts. Automaton has 10782 states and 15000 transitions. Word has length 161 [2022-11-20 11:12:17,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:17,924 INFO L495 AbstractCegarLoop]: Abstraction has 10782 states and 15000 transitions. [2022-11-20 11:12:17,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 11:12:17,924 INFO L276 IsEmpty]: Start isEmpty. Operand 10782 states and 15000 transitions. [2022-11-20 11:12:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 11:12:17,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:17,927 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-11-20 11:12:17,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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)] Ended with exit code 0 [2022-11-20 11:12:18,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:18,142 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:12:18,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:18,142 INFO L85 PathProgramCache]: Analyzing trace with hash 306214022, now seen corresponding path program 1 times [2022-11-20 11:12:18,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:18,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956324281] [2022-11-20 11:12:18,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:18,145 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 11:12:18,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:18,147 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:18,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:19,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 2350 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:12:19,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:12:21,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:12:21,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:21,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956324281] [2022-11-20 11:12:21,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956324281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:21,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:21,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:12:21,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734549844] [2022-11-20 11:12:21,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:21,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:12:21,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:21,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:12:21,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:12:21,889 INFO L87 Difference]: Start difference. First operand 10782 states and 15000 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:12:23,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:23,094 INFO L93 Difference]: Finished difference Result 10788 states and 15005 transitions. [2022-11-20 11:12:23,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:12:23,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 161 [2022-11-20 11:12:23,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:23,150 INFO L225 Difference]: With dead ends: 10788 [2022-11-20 11:12:23,151 INFO L226 Difference]: Without dead ends: 10786 [2022-11-20 11:12:23,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:12:23,159 INFO L413 NwaCegarLoop]: 1748 mSDtfsCounter, 1676 mSDsluCounter, 3484 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1677 SdHoareTripleChecker+Valid, 5232 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:23,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1677 Valid, 5232 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:12:23,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10786 states. [2022-11-20 11:12:24,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10786 to 10786. [2022-11-20 11:12:24,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10786 states, 7249 states have (on average 1.251345013105256) internal successors, (9071), 7507 states have internal predecessors, (9071), 2932 states have call successors, (2932), 675 states have call predecessors, (2932), 602 states have return successors, (3000), 2673 states have call predecessors, (3000), 2928 states have call successors, (3000) [2022-11-20 11:12:24,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10786 states to 10786 states and 15003 transitions. [2022-11-20 11:12:24,278 INFO L78 Accepts]: Start accepts. Automaton has 10786 states and 15003 transitions. Word has length 161 [2022-11-20 11:12:24,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:24,279 INFO L495 AbstractCegarLoop]: Abstraction has 10786 states and 15003 transitions. [2022-11-20 11:12:24,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:12:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 10786 states and 15003 transitions. [2022-11-20 11:12:24,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-20 11:12:24,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:24,283 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-11-20 11:12:24,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:24,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:24,499 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:12:24,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:24,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1400497903, now seen corresponding path program 1 times [2022-11-20 11:12:24,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:24,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333444879] [2022-11-20 11:12:24,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:24,502 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 11:12:24,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:24,505 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:24,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:26,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 2357 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:12:26,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:12:28,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:12:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 11:12:29,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:29,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333444879] [2022-11-20 11:12:29,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333444879] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:12:29,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:12:29,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:12:29,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656880506] [2022-11-20 11:12:29,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:29,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:12:29,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:29,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:12:29,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:12:29,937 INFO L87 Difference]: Start difference. First operand 10786 states and 15003 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:12:31,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:31,272 INFO L93 Difference]: Finished difference Result 10792 states and 15008 transitions. [2022-11-20 11:12:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:12:31,272 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 166 [2022-11-20 11:12:31,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:31,314 INFO L225 Difference]: With dead ends: 10792 [2022-11-20 11:12:31,315 INFO L226 Difference]: Without dead ends: 10790 [2022-11-20 11:12:31,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:12:31,319 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1692 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:31,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1702 Valid, 5234 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:12:31,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10790 states. [2022-11-20 11:12:32,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10790 to 10790. [2022-11-20 11:12:32,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10790 states, 7252 states have (on average 1.2512410369553226) internal successors, (9074), 7510 states have internal predecessors, (9074), 2932 states have call successors, (2932), 676 states have call predecessors, (2932), 603 states have return successors, (3000), 2673 states have call predecessors, (3000), 2928 states have call successors, (3000) [2022-11-20 11:12:32,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10790 states to 10790 states and 15006 transitions. [2022-11-20 11:12:32,720 INFO L78 Accepts]: Start accepts. Automaton has 10790 states and 15006 transitions. Word has length 166 [2022-11-20 11:12:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:32,721 INFO L495 AbstractCegarLoop]: Abstraction has 10790 states and 15006 transitions. [2022-11-20 11:12:32,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:12:32,721 INFO L276 IsEmpty]: Start isEmpty. Operand 10790 states and 15006 transitions. [2022-11-20 11:12:32,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-20 11:12:32,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:32,729 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 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] [2022-11-20 11:12:32,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:32,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:32,955 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:12:32,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:32,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2104863526, now seen corresponding path program 1 times [2022-11-20 11:12:32,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:32,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035194827] [2022-11-20 11:12:32,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:32,960 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 11:12:32,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:32,963 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:33,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:34,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 2364 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:12:34,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:37,474 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-11-20 11:12:37,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:12:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2022-11-20 11:12:38,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:38,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035194827] [2022-11-20 11:12:38,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035194827] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:12:38,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:12:38,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:12:38,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538005095] [2022-11-20 11:12:38,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:38,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:12:38,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:38,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:12:38,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:12:38,741 INFO L87 Difference]: Start difference. First operand 10790 states and 15006 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:12:40,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:40,094 INFO L93 Difference]: Finished difference Result 10796 states and 15011 transitions. [2022-11-20 11:12:40,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:12:40,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2022-11-20 11:12:40,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:40,141 INFO L225 Difference]: With dead ends: 10796 [2022-11-20 11:12:40,141 INFO L226 Difference]: Without dead ends: 10794 [2022-11-20 11:12:40,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:12:40,147 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1692 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:40,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 5234 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:12:40,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-11-20 11:12:41,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 10794. [2022-11-20 11:12:41,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10794 states, 7255 states have (on average 1.2511371467953136) internal successors, (9077), 7513 states have internal predecessors, (9077), 2932 states have call successors, (2932), 677 states have call predecessors, (2932), 604 states have return successors, (3000), 2673 states have call predecessors, (3000), 2928 states have call successors, (3000) [2022-11-20 11:12:41,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10794 states to 10794 states and 15009 transitions. [2022-11-20 11:12:41,222 INFO L78 Accepts]: Start accepts. Automaton has 10794 states and 15009 transitions. Word has length 171 [2022-11-20 11:12:41,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:41,223 INFO L495 AbstractCegarLoop]: Abstraction has 10794 states and 15009 transitions. [2022-11-20 11:12:41,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 11:12:41,223 INFO L276 IsEmpty]: Start isEmpty. Operand 10794 states and 15009 transitions. [2022-11-20 11:12:41,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-20 11:12:41,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:41,228 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 3, 3, 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] [2022-11-20 11:12:41,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:41,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:41,455 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:12:41,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:41,455 INFO L85 PathProgramCache]: Analyzing trace with hash 828650993, now seen corresponding path program 1 times [2022-11-20 11:12:41,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:41,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993846387] [2022-11-20 11:12:41,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:41,459 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 11:12:41,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:41,460 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:41,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:42,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 2371 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:12:43,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-11-20 11:12:45,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:12:47,002 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-11-20 11:12:47,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:47,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993846387] [2022-11-20 11:12:47,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993846387] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:12:47,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:12:47,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:12:47,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894188922] [2022-11-20 11:12:47,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:47,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:12:47,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:47,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:12:47,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:12:47,005 INFO L87 Difference]: Start difference. First operand 10794 states and 15009 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:12:48,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:48,489 INFO L93 Difference]: Finished difference Result 10800 states and 15014 transitions. [2022-11-20 11:12:48,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:12:48,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 176 [2022-11-20 11:12:48,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:48,539 INFO L225 Difference]: With dead ends: 10800 [2022-11-20 11:12:48,539 INFO L226 Difference]: Without dead ends: 10798 [2022-11-20 11:12:48,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:12:48,548 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1692 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:48,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 5234 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:12:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10798 states. [2022-11-20 11:12:49,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10798 to 10798. [2022-11-20 11:12:49,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10798 states, 7258 states have (on average 1.2510333425186002) internal successors, (9080), 7516 states have internal predecessors, (9080), 2932 states have call successors, (2932), 678 states have call predecessors, (2932), 605 states have return successors, (3000), 2673 states have call predecessors, (3000), 2928 states have call successors, (3000) [2022-11-20 11:12:49,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10798 states to 10798 states and 15012 transitions. [2022-11-20 11:12:49,623 INFO L78 Accepts]: Start accepts. Automaton has 10798 states and 15012 transitions. Word has length 176 [2022-11-20 11:12:49,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:49,623 INFO L495 AbstractCegarLoop]: Abstraction has 10798 states and 15012 transitions. [2022-11-20 11:12:49,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:12:49,623 INFO L276 IsEmpty]: Start isEmpty. Operand 10798 states and 15012 transitions. [2022-11-20 11:12:49,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-20 11:12:49,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:49,628 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 4, 4, 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] [2022-11-20 11:12:49,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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)] Ended with exit code 0 [2022-11-20 11:12:49,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:49,851 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:12:49,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:49,851 INFO L85 PathProgramCache]: Analyzing trace with hash 2124878423, now seen corresponding path program 1 times [2022-11-20 11:12:49,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:49,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121103544] [2022-11-20 11:12:49,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:49,855 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 11:12:49,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:49,856 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:49,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:51,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:12:51,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:51,226 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-11-20 11:12:51,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:12:51,227 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:12:51,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1121103544] [2022-11-20 11:12:51,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1121103544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:12:51,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:12:51,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:12:51,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787256017] [2022-11-20 11:12:51,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:12:51,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:12:51,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:12:51,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:12:51,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:12:51,230 INFO L87 Difference]: Start difference. First operand 10798 states and 15012 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 11:12:53,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:12:53,259 INFO L93 Difference]: Finished difference Result 26661 states and 37118 transitions. [2022-11-20 11:12:53,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:12:53,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 195 [2022-11-20 11:12:53,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:12:53,334 INFO L225 Difference]: With dead ends: 26661 [2022-11-20 11:12:53,335 INFO L226 Difference]: Without dead ends: 15952 [2022-11-20 11:12:53,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 193 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 11:12:53,384 INFO L413 NwaCegarLoop]: 3228 mSDtfsCounter, 1645 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 4954 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:12:53,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 4954 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:12:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15952 states. [2022-11-20 11:12:55,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15952 to 15914. [2022-11-20 11:12:55,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15914 states, 10708 states have (on average 1.2509338812103101) internal successors, (13395), 11080 states have internal predecessors, (13395), 4313 states have call successors, (4313), 997 states have call predecessors, (4313), 890 states have return successors, (4417), 3941 states have call predecessors, (4417), 4309 states have call successors, (4417) [2022-11-20 11:12:55,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15914 states to 15914 states and 22125 transitions. [2022-11-20 11:12:55,280 INFO L78 Accepts]: Start accepts. Automaton has 15914 states and 22125 transitions. Word has length 195 [2022-11-20 11:12:55,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:12:55,283 INFO L495 AbstractCegarLoop]: Abstraction has 15914 states and 22125 transitions. [2022-11-20 11:12:55,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 11:12:55,283 INFO L276 IsEmpty]: Start isEmpty. Operand 15914 states and 22125 transitions. [2022-11-20 11:12:55,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-20 11:12:55,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:12:55,288 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 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] [2022-11-20 11:12:55,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:55,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:55,495 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:12:55,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:55,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1719612986, now seen corresponding path program 1 times [2022-11-20 11:12:55,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:12:55,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500334655] [2022-11-20 11:12:55,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:55,498 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 11:12:55,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:12:55,499 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:55,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:12:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:12:56,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 2378 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:12:56,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:12:59,753 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-11-20 11:12:59,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:13:00,993 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2022-11-20 11:13:00,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:13:00,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500334655] [2022-11-20 11:13:00,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500334655] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:13:00,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:13:00,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:13:00,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826757991] [2022-11-20 11:13:00,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:00,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:13:00,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:13:00,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:13:00,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:13:00,996 INFO L87 Difference]: Start difference. First operand 15914 states and 22125 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 11:13:02,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:02,690 INFO L93 Difference]: Finished difference Result 15920 states and 22130 transitions. [2022-11-20 11:13:02,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:13:02,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 181 [2022-11-20 11:13:02,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:02,753 INFO L225 Difference]: With dead ends: 15920 [2022-11-20 11:13:02,753 INFO L226 Difference]: Without dead ends: 15918 [2022-11-20 11:13:02,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:13:02,765 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1692 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:02,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 5234 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:13:02,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15918 states. [2022-11-20 11:13:04,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15918 to 15918. [2022-11-20 11:13:04,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15918 states, 10711 states have (on average 1.2508635981701055) internal successors, (13398), 11083 states have internal predecessors, (13398), 4313 states have call successors, (4313), 998 states have call predecessors, (4313), 891 states have return successors, (4417), 3941 states have call predecessors, (4417), 4309 states have call successors, (4417) [2022-11-20 11:13:04,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15918 states to 15918 states and 22128 transitions. [2022-11-20 11:13:04,579 INFO L78 Accepts]: Start accepts. Automaton has 15918 states and 22128 transitions. Word has length 181 [2022-11-20 11:13:04,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:04,580 INFO L495 AbstractCegarLoop]: Abstraction has 15918 states and 22128 transitions. [2022-11-20 11:13:04,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 11:13:04,581 INFO L276 IsEmpty]: Start isEmpty. Operand 15918 states and 22128 transitions. [2022-11-20 11:13:04,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-20 11:13:04,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:04,586 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 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] [2022-11-20 11:13:04,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:04,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:04,795 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:13:04,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:04,795 INFO L85 PathProgramCache]: Analyzing trace with hash 652045009, now seen corresponding path program 1 times [2022-11-20 11:13:04,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:13:04,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380270107] [2022-11-20 11:13:04,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:04,798 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 11:13:04,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:13:04,799 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:04,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:06,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 2385 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:13:06,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:13:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2022-11-20 11:13:08,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:13:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2022-11-20 11:13:09,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:13:09,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380270107] [2022-11-20 11:13:09,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380270107] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:13:09,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:13:09,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:13:09,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269862354] [2022-11-20 11:13:09,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:09,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:13:09,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:13:09,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:13:09,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:13:09,969 INFO L87 Difference]: Start difference. First operand 15918 states and 22128 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:13:11,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:11,792 INFO L93 Difference]: Finished difference Result 15924 states and 22133 transitions. [2022-11-20 11:13:11,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:13:11,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 186 [2022-11-20 11:13:11,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:11,833 INFO L225 Difference]: With dead ends: 15924 [2022-11-20 11:13:11,834 INFO L226 Difference]: Without dead ends: 15922 [2022-11-20 11:13:11,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:13:11,841 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1692 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:11,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 5234 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:13:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15922 states. [2022-11-20 11:13:13,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15922 to 15922. [2022-11-20 11:13:13,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15922 states, 10714 states have (on average 1.250793354489453) internal successors, (13401), 11086 states have internal predecessors, (13401), 4313 states have call successors, (4313), 999 states have call predecessors, (4313), 892 states have return successors, (4417), 3941 states have call predecessors, (4417), 4309 states have call successors, (4417) [2022-11-20 11:13:13,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15922 states to 15922 states and 22131 transitions. [2022-11-20 11:13:13,541 INFO L78 Accepts]: Start accepts. Automaton has 15922 states and 22131 transitions. Word has length 186 [2022-11-20 11:13:13,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:13,542 INFO L495 AbstractCegarLoop]: Abstraction has 15922 states and 22131 transitions. [2022-11-20 11:13:13,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:13:13,542 INFO L276 IsEmpty]: Start isEmpty. Operand 15922 states and 22131 transitions. [2022-11-20 11:13:13,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-20 11:13:13,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:13,546 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 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] [2022-11-20 11:13:13,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:13,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:13,763 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:13:13,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:13,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1646252134, now seen corresponding path program 1 times [2022-11-20 11:13:13,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:13:13,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711796255] [2022-11-20 11:13:13,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:13,765 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 11:13:13,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:13:13,766 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:13,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:14,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 2392 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:13:14,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:13:17,775 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-20 11:13:17,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:13:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2022-11-20 11:13:19,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:13:19,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [711796255] [2022-11-20 11:13:19,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [711796255] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:13:19,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:13:19,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:13:19,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376369376] [2022-11-20 11:13:19,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:19,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:13:19,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:13:19,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:13:19,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:13:19,060 INFO L87 Difference]: Start difference. First operand 15922 states and 22131 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:13:20,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:20,748 INFO L93 Difference]: Finished difference Result 15928 states and 22136 transitions. [2022-11-20 11:13:20,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:13:20,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 191 [2022-11-20 11:13:20,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:20,786 INFO L225 Difference]: With dead ends: 15928 [2022-11-20 11:13:20,786 INFO L226 Difference]: Without dead ends: 15926 [2022-11-20 11:13:20,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:13:20,793 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1692 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:20,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 5234 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:13:20,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15926 states. [2022-11-20 11:13:22,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15926 to 15926. [2022-11-20 11:13:22,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15926 states, 10717 states have (on average 1.250723150135299) internal successors, (13404), 11089 states have internal predecessors, (13404), 4313 states have call successors, (4313), 1000 states have call predecessors, (4313), 893 states have return successors, (4417), 3941 states have call predecessors, (4417), 4309 states have call successors, (4417) [2022-11-20 11:13:22,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15926 states to 15926 states and 22134 transitions. [2022-11-20 11:13:22,489 INFO L78 Accepts]: Start accepts. Automaton has 15926 states and 22134 transitions. Word has length 191 [2022-11-20 11:13:22,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:22,490 INFO L495 AbstractCegarLoop]: Abstraction has 15926 states and 22134 transitions. [2022-11-20 11:13:22,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:13:22,490 INFO L276 IsEmpty]: Start isEmpty. Operand 15926 states and 22134 transitions. [2022-11-20 11:13:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-20 11:13:22,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:22,494 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 8, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-11-20 11:13:22,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:22,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:22,706 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:13:22,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:22,706 INFO L85 PathProgramCache]: Analyzing trace with hash 938719153, now seen corresponding path program 1 times [2022-11-20 11:13:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:13:22,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052781852] [2022-11-20 11:13:22,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:22,709 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 11:13:22,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:13:22,711 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:22,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:24,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 2399 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:13:24,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:13:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-11-20 11:13:26,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:13:27,948 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2022-11-20 11:13:27,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:13:27,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052781852] [2022-11-20 11:13:27,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052781852] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:13:27,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:13:27,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:13:27,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609407364] [2022-11-20 11:13:27,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:27,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:13:27,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:13:27,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:13:27,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:13:27,951 INFO L87 Difference]: Start difference. First operand 15926 states and 22134 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 11:13:29,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:29,809 INFO L93 Difference]: Finished difference Result 15932 states and 22139 transitions. [2022-11-20 11:13:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:13:29,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 196 [2022-11-20 11:13:29,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:29,872 INFO L225 Difference]: With dead ends: 15932 [2022-11-20 11:13:29,873 INFO L226 Difference]: Without dead ends: 15930 [2022-11-20 11:13:29,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:13:29,881 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1692 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:29,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1696 Valid, 5234 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:13:29,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15930 states. [2022-11-20 11:13:32,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15930 to 15930. [2022-11-20 11:13:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15930 states, 10720 states have (on average 1.2506529850746269) internal successors, (13407), 11092 states have internal predecessors, (13407), 4313 states have call successors, (4313), 1001 states have call predecessors, (4313), 894 states have return successors, (4417), 3941 states have call predecessors, (4417), 4309 states have call successors, (4417) [2022-11-20 11:13:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15930 states to 15930 states and 22137 transitions. [2022-11-20 11:13:32,294 INFO L78 Accepts]: Start accepts. Automaton has 15930 states and 22137 transitions. Word has length 196 [2022-11-20 11:13:32,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:32,295 INFO L495 AbstractCegarLoop]: Abstraction has 15930 states and 22137 transitions. [2022-11-20 11:13:32,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 11:13:32,295 INFO L276 IsEmpty]: Start isEmpty. Operand 15930 states and 22137 transitions. [2022-11-20 11:13:32,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-20 11:13:32,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:32,303 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 8, 8, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-11-20 11:13:32,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:32,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:32,516 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:13:32,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:32,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1114587386, now seen corresponding path program 1 times [2022-11-20 11:13:32,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:13:32,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306439588] [2022-11-20 11:13:32,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:32,519 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 11:13:32,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:13:32,521 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:32,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (16)] Waiting until timeout for monitored process [2022-11-20 11:13:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:33,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 2406 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:13:33,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:13:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-11-20 11:13:36,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:13:38,243 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-11-20 11:13:38,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:13:38,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306439588] [2022-11-20 11:13:38,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306439588] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:13:38,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:13:38,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:13:38,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121557128] [2022-11-20 11:13:38,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:38,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:13:38,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:13:38,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:13:38,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:13:38,247 INFO L87 Difference]: Start difference. First operand 15930 states and 22137 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 11:13:40,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:40,938 INFO L93 Difference]: Finished difference Result 18802 states and 25756 transitions. [2022-11-20 11:13:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:13:40,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 201 [2022-11-20 11:13:40,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:40,985 INFO L225 Difference]: With dead ends: 18802 [2022-11-20 11:13:40,985 INFO L226 Difference]: Without dead ends: 18800 [2022-11-20 11:13:40,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:13:40,992 INFO L413 NwaCegarLoop]: 1957 mSDtfsCounter, 1180 mSDsluCounter, 4748 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 6705 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:40,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 6705 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:13:41,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18800 states. [2022-11-20 11:13:43,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18800 to 18775. [2022-11-20 11:13:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18775 states, 12385 states have (on average 1.2346386758175212) internal successors, (15291), 12808 states have internal predecessors, (15291), 5162 states have call successors, (5162), 1413 states have call predecessors, (5162), 1225 states have return successors, (5278), 4685 states have call predecessors, (5278), 5158 states have call successors, (5278) [2022-11-20 11:13:43,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18775 states to 18775 states and 25731 transitions. [2022-11-20 11:13:43,517 INFO L78 Accepts]: Start accepts. Automaton has 18775 states and 25731 transitions. Word has length 201 [2022-11-20 11:13:43,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:43,518 INFO L495 AbstractCegarLoop]: Abstraction has 18775 states and 25731 transitions. [2022-11-20 11:13:43,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 11:13:43,518 INFO L276 IsEmpty]: Start isEmpty. Operand 18775 states and 25731 transitions. [2022-11-20 11:13:43,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-20 11:13:43,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:43,523 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 9, 9, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-11-20 11:13:43,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:43,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:43,747 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:13:43,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:43,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1255596911, now seen corresponding path program 1 times [2022-11-20 11:13:43,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:13:43,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218372927] [2022-11-20 11:13:43,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:43,750 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 11:13:43,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:13:43,751 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:43,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (17)] Waiting until timeout for monitored process [2022-11-20 11:13:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:45,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 2413 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:13:45,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:13:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-11-20 11:13:48,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:13:49,593 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-11-20 11:13:49,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:13:49,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218372927] [2022-11-20 11:13:49,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218372927] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:13:49,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:13:49,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:13:49,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486536478] [2022-11-20 11:13:49,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:49,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:13:49,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:13:49,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:13:49,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:13:49,596 INFO L87 Difference]: Start difference. First operand 18775 states and 25731 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 11:13:52,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:13:52,430 INFO L93 Difference]: Finished difference Result 18781 states and 25736 transitions. [2022-11-20 11:13:52,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:13:52,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 206 [2022-11-20 11:13:52,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:13:52,489 INFO L225 Difference]: With dead ends: 18781 [2022-11-20 11:13:52,489 INFO L226 Difference]: Without dead ends: 18779 [2022-11-20 11:13:52,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:13:52,498 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1692 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:13:52,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 5234 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:13:52,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18779 states. [2022-11-20 11:13:55,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18779 to 18779. [2022-11-20 11:13:55,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18779 states, 12388 states have (on average 1.2345818534065225) internal successors, (15294), 12811 states have internal predecessors, (15294), 5162 states have call successors, (5162), 1414 states have call predecessors, (5162), 1226 states have return successors, (5278), 4685 states have call predecessors, (5278), 5158 states have call successors, (5278) [2022-11-20 11:13:55,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18779 states to 18779 states and 25734 transitions. [2022-11-20 11:13:55,715 INFO L78 Accepts]: Start accepts. Automaton has 18779 states and 25734 transitions. Word has length 206 [2022-11-20 11:13:55,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:13:55,716 INFO L495 AbstractCegarLoop]: Abstraction has 18779 states and 25734 transitions. [2022-11-20 11:13:55,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 11:13:55,716 INFO L276 IsEmpty]: Start isEmpty. Operand 18779 states and 25734 transitions. [2022-11-20 11:13:55,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-20 11:13:55,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:13:55,721 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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 11:13:55,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:55,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:55,947 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:13:55,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:55,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1599909369, now seen corresponding path program 1 times [2022-11-20 11:13:55,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:13:55,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559906292] [2022-11-20 11:13:55,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:55,950 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 11:13:55,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:13:55,953 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:13:55,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (18)] Waiting until timeout for monitored process [2022-11-20 11:13:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:57,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 2660 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:13:57,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:13:58,244 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-11-20 11:13:58,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:13:58,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:13:58,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559906292] [2022-11-20 11:13:58,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559906292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:13:58,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:13:58,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:13:58,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053622309] [2022-11-20 11:13:58,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:13:58,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:13:58,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:13:58,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:13:58,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:13:58,247 INFO L87 Difference]: Start difference. First operand 18779 states and 25734 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 11:14:02,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:14:02,204 INFO L93 Difference]: Finished difference Result 40998 states and 56131 transitions. [2022-11-20 11:14:02,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:14:02,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 207 [2022-11-20 11:14:02,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:14:02,268 INFO L225 Difference]: With dead ends: 40998 [2022-11-20 11:14:02,268 INFO L226 Difference]: Without dead ends: 22308 [2022-11-20 11:14:02,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 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 11:14:02,335 INFO L413 NwaCegarLoop]: 2311 mSDtfsCounter, 577 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 4036 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:14:02,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 4036 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 11:14:02,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22308 states. [2022-11-20 11:14:06,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22308 to 22119. [2022-11-20 11:14:06,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22119 states, 14748 states have (on average 1.2316924328722538) internal successors, (18165), 15271 states have internal predecessors, (18165), 5905 states have call successors, (5905), 1765 states have call predecessors, (5905), 1463 states have return successors, (6063), 5214 states have call predecessors, (6063), 5901 states have call successors, (6063) [2022-11-20 11:14:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22119 states to 22119 states and 30133 transitions. [2022-11-20 11:14:06,179 INFO L78 Accepts]: Start accepts. Automaton has 22119 states and 30133 transitions. Word has length 207 [2022-11-20 11:14:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:14:06,180 INFO L495 AbstractCegarLoop]: Abstraction has 22119 states and 30133 transitions. [2022-11-20 11:14:06,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 11:14:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 22119 states and 30133 transitions. [2022-11-20 11:14:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-20 11:14:06,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:14:06,184 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-11-20 11:14:06,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:14:06,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:14:06,385 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:14:06,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:06,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1553044902, now seen corresponding path program 1 times [2022-11-20 11:14:06,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:14:06,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471481863] [2022-11-20 11:14:06,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:14:06,389 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 11:14:06,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:14:06,390 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:14:06,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (19)] Waiting until timeout for monitored process [2022-11-20 11:14:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:14:07,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 2420 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:14:07,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:14:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-11-20 11:14:11,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:14:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2022-11-20 11:14:12,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:14:12,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471481863] [2022-11-20 11:14:12,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471481863] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:14:12,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:14:12,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:14:12,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769609561] [2022-11-20 11:14:12,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:14:12,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:14:12,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:14:12,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:14:12,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:14:12,599 INFO L87 Difference]: Start difference. First operand 22119 states and 30133 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:14:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:14:16,243 INFO L93 Difference]: Finished difference Result 22125 states and 30138 transitions. [2022-11-20 11:14:16,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:14:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 211 [2022-11-20 11:14:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:14:16,312 INFO L225 Difference]: With dead ends: 22125 [2022-11-20 11:14:16,312 INFO L226 Difference]: Without dead ends: 22121 [2022-11-20 11:14:16,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:14:16,324 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1692 mSDsluCounter, 3483 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:14:16,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 5234 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:14:16,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22121 states. [2022-11-20 11:14:19,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22121 to 22121. [2022-11-20 11:14:19,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22121 states, 14750 states have (on average 1.231593220338983) internal successors, (18166), 15272 states have internal predecessors, (18166), 5905 states have call successors, (5905), 1766 states have call predecessors, (5905), 1463 states have return successors, (6063), 5214 states have call predecessors, (6063), 5901 states have call successors, (6063) [2022-11-20 11:14:19,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22121 states to 22121 states and 30134 transitions. [2022-11-20 11:14:19,914 INFO L78 Accepts]: Start accepts. Automaton has 22121 states and 30134 transitions. Word has length 211 [2022-11-20 11:14:19,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:14:19,914 INFO L495 AbstractCegarLoop]: Abstraction has 22121 states and 30134 transitions. [2022-11-20 11:14:19,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:14:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 22121 states and 30134 transitions. [2022-11-20 11:14:19,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-20 11:14:19,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:14:19,919 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 11, 11, 7, 7, 7, 7, 7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 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] [2022-11-20 11:14:19,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (19)] Forceful destruction successful, exit code 0 [2022-11-20 11:14:20,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:14:20,135 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:14:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:20,135 INFO L85 PathProgramCache]: Analyzing trace with hash 946625850, now seen corresponding path program 1 times [2022-11-20 11:14:20,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:14:20,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281550062] [2022-11-20 11:14:20,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:14:20,140 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 11:14:20,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:14:20,141 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:14:20,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (20)] Waiting until timeout for monitored process [2022-11-20 11:14:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:14:21,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 2520 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 11:14:21,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:14:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 187 proven. 3 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-11-20 11:14:24,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:14:27,634 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 51 proven. 18 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-11-20 11:14:27,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:14:27,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281550062] [2022-11-20 11:14:27,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281550062] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:14:27,635 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:14:27,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-11-20 11:14:27,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683790696] [2022-11-20 11:14:27,635 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:14:27,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:14:27,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:14:27,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:14:27,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:14:27,637 INFO L87 Difference]: Start difference. First operand 22121 states and 30134 transitions. Second operand has 22 states, 21 states have (on average 5.333333333333333) internal successors, (112), 20 states have internal predecessors, (112), 6 states have call successors, (57), 3 states have call predecessors, (57), 8 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2022-11-20 11:15:12,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:15:12,263 INFO L93 Difference]: Finished difference Result 58641 states and 79812 transitions. [2022-11-20 11:15:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 11:15:12,264 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.333333333333333) internal successors, (112), 20 states have internal predecessors, (112), 6 states have call successors, (57), 3 states have call predecessors, (57), 8 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) Word has length 254 [2022-11-20 11:15:12,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:15:12,383 INFO L225 Difference]: With dead ends: 58641 [2022-11-20 11:15:12,383 INFO L226 Difference]: Without dead ends: 36450 [2022-11-20 11:15:12,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 487 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=181, Invalid=1079, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 11:15:12,451 INFO L413 NwaCegarLoop]: 3343 mSDtfsCounter, 5819 mSDsluCounter, 41337 mSDsCounter, 0 mSdLazyCounter, 3939 mSolverCounterSat, 1200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5976 SdHoareTripleChecker+Valid, 44680 SdHoareTripleChecker+Invalid, 5139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1200 IncrementalHoareTripleChecker+Valid, 3939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:15:12,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5976 Valid, 44680 Invalid, 5139 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1200 Valid, 3939 Invalid, 0 Unknown, 0 Unchecked, 34.5s Time] [2022-11-20 11:15:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36450 states. [2022-11-20 11:15:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36450 to 29203. [2022-11-20 11:15:17,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29203 states, 19445 states have (on average 1.2306505528413474) internal successors, (23930), 20126 states have internal predecessors, (23930), 7797 states have call successors, (7797), 2358 states have call predecessors, (7797), 1958 states have return successors, (8009), 6894 states have call predecessors, (8009), 7793 states have call successors, (8009) [2022-11-20 11:15:17,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29203 states to 29203 states and 39736 transitions. [2022-11-20 11:15:17,953 INFO L78 Accepts]: Start accepts. Automaton has 29203 states and 39736 transitions. Word has length 254 [2022-11-20 11:15:17,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:15:17,954 INFO L495 AbstractCegarLoop]: Abstraction has 29203 states and 39736 transitions. [2022-11-20 11:15:17,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.333333333333333) internal successors, (112), 20 states have internal predecessors, (112), 6 states have call successors, (57), 3 states have call predecessors, (57), 8 states have return successors, (56), 7 states have call predecessors, (56), 6 states have call successors, (56) [2022-11-20 11:15:17,954 INFO L276 IsEmpty]: Start isEmpty. Operand 29203 states and 39736 transitions. [2022-11-20 11:15:17,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-20 11:15:17,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:15:17,957 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2022-11-20 11:15:17,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (20)] Forceful destruction successful, exit code 0 [2022-11-20 11:15:18,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:15:18,158 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:15:18,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:18,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1266706063, now seen corresponding path program 1 times [2022-11-20 11:15:18,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:15:18,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600014363] [2022-11-20 11:15:18,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:18,161 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 11:15:18,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:15:18,162 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:15:18,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (21)] Waiting until timeout for monitored process [2022-11-20 11:15:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:19,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:15:19,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:15:23,203 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-11-20 11:15:23,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:15:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2022-11-20 11:15:24,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:15:24,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600014363] [2022-11-20 11:15:24,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [600014363] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:15:24,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:15:24,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:15:24,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371797635] [2022-11-20 11:15:24,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:24,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:15:24,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:15:24,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:15:24,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:15:24,599 INFO L87 Difference]: Start difference. First operand 29203 states and 39736 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 11:15:30,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:15:30,909 INFO L93 Difference]: Finished difference Result 29203 states and 39736 transitions. [2022-11-20 11:15:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:15:30,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 216 [2022-11-20 11:15:30,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:15:30,993 INFO L225 Difference]: With dead ends: 29203 [2022-11-20 11:15:30,993 INFO L226 Difference]: Without dead ends: 28859 [2022-11-20 11:15:31,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:15:31,004 INFO L413 NwaCegarLoop]: 1749 mSDtfsCounter, 1688 mSDsluCounter, 3482 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 5231 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:15:31,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 5231 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:15:31,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28859 states. [2022-11-20 11:15:35,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28859 to 21913. [2022-11-20 11:15:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21913 states, 14624 states have (on average 1.229280634573304) internal successors, (17977), 15110 states have internal predecessors, (17977), 5817 states have call successors, (5817), 1761 states have call predecessors, (5817), 1470 states have return successors, (5979), 5173 states have call predecessors, (5979), 5817 states have call successors, (5979) [2022-11-20 11:15:35,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21913 states to 21913 states and 29773 transitions. [2022-11-20 11:15:35,519 INFO L78 Accepts]: Start accepts. Automaton has 21913 states and 29773 transitions. Word has length 216 [2022-11-20 11:15:35,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:15:35,520 INFO L495 AbstractCegarLoop]: Abstraction has 21913 states and 29773 transitions. [2022-11-20 11:15:35,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 11:15:35,520 INFO L276 IsEmpty]: Start isEmpty. Operand 21913 states and 29773 transitions. [2022-11-20 11:15:35,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-20 11:15:35,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:15:35,523 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 8, 8, 7, 7, 7, 7, 7, 7, 3, 3, 3, 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] [2022-11-20 11:15:35,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (21)] Forceful destruction successful, exit code 0 [2022-11-20 11:15:35,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:15:35,724 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:15:35,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:15:35,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1052156417, now seen corresponding path program 1 times [2022-11-20 11:15:35,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:15:35,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685302812] [2022-11-20 11:15:35,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:15:35,729 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 11:15:35,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:15:35,731 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 11:15:35,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27b696b2-f6a9-495c-9e86-25ce744a4176/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 (22)] Waiting until timeout for monitored process [2022-11-20 11:15:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:15:37,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 2749 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:15:37,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:15:37,751 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-11-20 11:15:37,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:15:37,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:15:37,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685302812] [2022-11-20 11:15:37,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685302812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:15:37,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:15:37,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:15:37,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386542468] [2022-11-20 11:15:37,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:15:37,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:15:37,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:15:37,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:15:37,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:15:37,754 INFO L87 Difference]: Start difference. First operand 21913 states and 29773 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29)