./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-natsemi-ns83820.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_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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-natsemi-ns83820.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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_610ba29c-d388-4493-a175-612364dbe441/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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- 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 09:29:26,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:26,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:26,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:26,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:26,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:26,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:26,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:26,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:26,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:26,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:26,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:26,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:26,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:26,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:26,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:26,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:26,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:26,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:26,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:26,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:26,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:26,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:26,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:26,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:26,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:26,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:26,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:26,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:26,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:26,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:26,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:26,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:26,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:26,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:26,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:26,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:26,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:26,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:26,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:26,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:26,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:29:26,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:26,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:26,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:26,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:26,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:26,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:26,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:26,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:26,626 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:26,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:26,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:29:26,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:26,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:26,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:26,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:26,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:26,628 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:26,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:26,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:26,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:26,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:26,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:26,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:26,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:26,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:26,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:29:26,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:29:26,630 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:26,630 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:26,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:26,630 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_610ba29c-d388-4493-a175-612364dbe441/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2022-11-20 09:29:26,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:26,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:26,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:26,954 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:26,954 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:26,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2022-11-20 09:29:29,930 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:30,620 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:30,621 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2022-11-20 09:29:30,677 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/data/576d6f82d/814f36ed031e49749ce942c9a6823f83/FLAGd712129e2 [2022-11-20 09:29:30,696 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/data/576d6f82d/814f36ed031e49749ce942c9a6823f83 [2022-11-20 09:29:30,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:30,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:30,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:30,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:30,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:30,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c84680d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:30, skipping insertion in model container [2022-11-20 09:29:30,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:30" (1/1) ... [2022-11-20 09:29:30,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:30,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:31,527 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 09:29:31,546 INFO L158 Benchmark]: Toolchain (without parser) took 841.16ms. Allocated memory is still 172.0MB. Free memory was 121.9MB in the beginning and 106.5MB in the end (delta: 15.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 09:29:31,547 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:31,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 838.57ms. Allocated memory is still 172.0MB. Free memory was 121.9MB in the beginning and 106.5MB in the end (delta: 15.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-20 09:29:31,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 838.57ms. Allocated memory is still 172.0MB. Free memory was 121.9MB in the beginning and 106.5MB in the end (delta: 15.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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-natsemi-ns83820.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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_610ba29c-d388-4493-a175-612364dbe441/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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- 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 09:29:34,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:34,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:34,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:34,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:34,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:34,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:34,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:34,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:34,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:34,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:34,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:34,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:34,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:34,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:34,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:34,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:34,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:34,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:34,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:34,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:34,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:34,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:34,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:34,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:34,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:34,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:34,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:34,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:34,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:34,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:34,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:34,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:34,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:34,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:34,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:34,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:34,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:34,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:34,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:34,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:34,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:29:34,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:34,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:34,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:34,190 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:34,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:34,191 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:34,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:34,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:34,192 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:34,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:34,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:34,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:34,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:34,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:34,193 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:29:34,193 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:29:34,194 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:29:34,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:34,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:34,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:34,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:34,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:34,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:34,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:34,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:34,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:34,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:34,196 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:29:34,196 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:29:34,196 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:34,196 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:34,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:34,196 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:29:34,197 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_610ba29c-d388-4493-a175-612364dbe441/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2022-11-20 09:29:34,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:34,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:34,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:34,634 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:34,634 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:34,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2022-11-20 09:29:37,881 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:38,668 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:38,669 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2022-11-20 09:29:38,745 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/data/0f930d60b/49f60797335348c3bb603ddf381700bc/FLAG95ccc1c65 [2022-11-20 09:29:38,765 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/data/0f930d60b/49f60797335348c3bb603ddf381700bc [2022-11-20 09:29:38,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:38,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:38,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:38,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:38,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:38,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:38" (1/1) ... [2022-11-20 09:29:38,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a33f16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:38, skipping insertion in model container [2022-11-20 09:29:38,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:38" (1/1) ... [2022-11-20 09:29:38,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:38,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:42,271 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2022-11-20 09:29:42,277 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2022-11-20 09:29:42,277 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2022-11-20 09:29:42,279 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2022-11-20 09:29:42,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:42,394 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:29:42,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:42,915 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2022-11-20 09:29:42,916 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2022-11-20 09:29:42,916 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2022-11-20 09:29:42,917 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2022-11-20 09:29:42,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:42,958 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:43,583 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2022-11-20 09:29:43,584 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2022-11-20 09:29:43,585 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2022-11-20 09:29:43,585 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_610ba29c-d388-4493-a175-612364dbe441/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2022-11-20 09:29:43,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:43,929 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:43,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43 WrapperNode [2022-11-20 09:29:43,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:43,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:43,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:43,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:43,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,373 INFO L138 Inliner]: procedures = 467, calls = 1811, calls flagged for inlining = 217, calls inlined = 199, statements flattened = 4152 [2022-11-20 09:29:44,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:44,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:44,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:44,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:44,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,679 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:44,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:44,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:44,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:44,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (1/1) ... [2022-11-20 09:29:44,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:44,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:44,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:44,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_set_multicast [2022-11-20 09:29:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_set_multicast [2022-11-20 09:29:44,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:29:44,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:29:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_rx_kick [2022-11-20 09:29:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_rx_kick [2022-11-20 09:29:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 09:29:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 09:29:44,825 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_do_reset [2022-11-20 09:29:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_do_reset [2022-11-20 09:29:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-11-20 09:29:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-11-20 09:29:44,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:29:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:29:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 09:29:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 09:29:44,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:29:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:29:44,828 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 09:29:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 09:29:44,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2022-11-20 09:29:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2022-11-20 09:29:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2022-11-20 09:29:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2022-11-20 09:29:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-11-20 09:29:44,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-11-20 09:29:44,830 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_remove_one [2022-11-20 09:29:44,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_remove_one [2022-11-20 09:29:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 09:29:44,831 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 09:29:44,831 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_update_stats [2022-11-20 09:29:44,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_update_stats [2022-11-20 09:29:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 09:29:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 09:29:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 09:29:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 09:29:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 09:29:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 09:29:44,832 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 09:29:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 09:29:44,833 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 09:29:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 09:29:44,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:29:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:29:44,834 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 09:29:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 09:29:44,834 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 09:29:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 09:29:44,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:29:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 09:29:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 09:29:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:29:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:29:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:29:44,835 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 09:29:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 09:29:44,836 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 09:29:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 09:29:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_tx_timeout [2022-11-20 09:29:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_tx_timeout [2022-11-20 09:29:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 09:29:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 09:29:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 09:29:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 09:29:44,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 09:29:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 09:29:44,838 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 09:29:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 09:29:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 09:29:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 09:29:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 09:29:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 09:29:44,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 09:29:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 09:29:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 09:29:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 09:29:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-20 09:29:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-20 09:29:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 09:29:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 09:29:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 09:29:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 09:29:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:29:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:29:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_run_bist [2022-11-20 09:29:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_run_bist [2022-11-20 09:29:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:29:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 09:29:44,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 09:29:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 09:29:44,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 09:29:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-20 09:29:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-20 09:29:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:29:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:29:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:29:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:29:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure clear_rx_desc [2022-11-20 09:29:44,845 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_rx_desc [2022-11-20 09:29:44,845 INFO L130 BoogieDeclarations]: Found specification of procedure phy_intr [2022-11-20 09:29:44,845 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_intr [2022-11-20 09:29:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:29:44,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:29:44,850 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-20 09:29:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-20 09:29:44,851 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 09:29:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 09:29:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 09:29:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 09:29:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 09:29:44,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 09:29:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-20 09:29:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-20 09:29:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure do_tx_done [2022-11-20 09:29:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure do_tx_done [2022-11-20 09:29:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2022-11-20 09:29:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2022-11-20 09:29:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 09:29:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 09:29:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 09:29:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 09:29:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-20 09:29:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-20 09:29:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 09:29:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 09:29:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_stop [2022-11-20 09:29:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_stop [2022-11-20 09:29:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:29:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure kick_tx [2022-11-20 09:29:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_tx [2022-11-20 09:29:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:29:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:29:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rx_info [2022-11-20 09:29:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rx_info [2022-11-20 09:29:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:29:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:29:44,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:29:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:29:44,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:29:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-20 09:29:44,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-20 09:29:44,862 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-20 09:29:44,863 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-20 09:29:44,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 09:29:44,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 09:29:44,863 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 09:29:44,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 09:29:44,863 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-20 09:29:44,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-20 09:29:44,863 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-20 09:29:44,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-20 09:29:44,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:29:44,864 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:29:44,864 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 09:29:44,864 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 09:29:44,864 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 09:29:44,864 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 09:29:44,865 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-20 09:29:44,865 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-20 09:29:44,865 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2022-11-20 09:29:44,865 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2022-11-20 09:29:44,865 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 09:29:44,865 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 09:29:44,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:29:44,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2022-11-20 09:29:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2022-11-20 09:29:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:29:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:29:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:29:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:29:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:29:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:29:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-20 09:29:44,867 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-20 09:29:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-20 09:29:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-20 09:29:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 09:29:44,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 09:29:44,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 09:29:44,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 09:29:44,869 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 09:29:44,869 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 09:29:44,869 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 09:29:44,869 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 09:29:44,870 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 09:29:44,870 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 09:29:44,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_ns83820 [2022-11-20 09:29:44,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_ns83820 [2022-11-20 09:29:44,870 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-11-20 09:29:44,870 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-11-20 09:29:44,870 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:29:44,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:29:44,871 INFO L130 BoogieDeclarations]: Found specification of procedure build_rx_desc [2022-11-20 09:29:44,871 INFO L138 BoogieDeclarations]: Found implementation of procedure build_rx_desc [2022-11-20 09:29:44,871 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-20 09:29:44,871 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-20 09:29:44,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:29:44,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:29:44,871 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 09:29:44,872 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 09:29:44,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_misc_lock_of_ns83820 [2022-11-20 09:29:44,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_misc_lock_of_ns83820 [2022-11-20 09:29:44,872 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 09:29:44,872 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 09:29:44,872 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_open [2022-11-20 09:29:44,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_open [2022-11-20 09:29:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 09:29:44,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 09:29:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure rx_irq [2022-11-20 09:29:44,873 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_irq [2022-11-20 09:29:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_disable_interrupts [2022-11-20 09:29:44,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_disable_interrupts [2022-11-20 09:29:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure kick_rx [2022-11-20 09:29:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_rx [2022-11-20 09:29:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 09:29:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 09:29:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 09:29:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 09:29:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure rx_refill [2022-11-20 09:29:44,874 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_refill [2022-11-20 09:29:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 09:29:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 09:29:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rx_info [2022-11-20 09:29:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rx_info [2022-11-20 09:29:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2022-11-20 09:29:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2022-11-20 09:29:45,938 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:45,942 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:46,150 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:30:10,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 09:30:11,166 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:30:11,194 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:30:11,195 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:30:11,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:11 BoogieIcfgContainer [2022-11-20 09:30:11,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:30:11,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:30:11,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:30:11,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:30:11,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:29:38" (1/3) ... [2022-11-20 09:30:11,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecc79bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:11, skipping insertion in model container [2022-11-20 09:30:11,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:43" (2/3) ... [2022-11-20 09:30:11,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ecc79bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:11, skipping insertion in model container [2022-11-20 09:30:11,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:11" (3/3) ... [2022-11-20 09:30:11,214 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2022-11-20 09:30:11,235 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:30:11,236 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 09:30:11,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:30:11,360 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;@3d0550c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:30:11,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 09:30:11,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 1736 states, 1122 states have (on average 1.2210338680926915) internal successors, (1370), 1154 states have internal predecessors, (1370), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) [2022-11-20 09:30:11,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-20 09:30:11,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:11,399 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] [2022-11-20 09:30:11,399 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 09:30:11,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:11,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1152342867, now seen corresponding path program 1 times [2022-11-20 09:30:11,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:11,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668832108] [2022-11-20 09:30:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:11,431 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 09:30:11,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:11,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:11,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:12,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:12,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:12,713 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 09:30:12,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:12,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:12,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668832108] [2022-11-20 09:30:12,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668832108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:12,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:12,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:12,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793636531] [2022-11-20 09:30:12,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:12,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:12,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:12,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:12,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:12,775 INFO L87 Difference]: Start difference. First operand has 1736 states, 1122 states have (on average 1.2210338680926915) internal successors, (1370), 1154 states have internal predecessors, (1370), 508 states have call successors, (508), 104 states have call predecessors, (508), 103 states have return successors, (503), 499 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 09:30:13,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:13,533 INFO L93 Difference]: Finished difference Result 5094 states and 7169 transitions. [2022-11-20 09:30:13,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:13,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 101 [2022-11-20 09:30:13,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:13,581 INFO L225 Difference]: With dead ends: 5094 [2022-11-20 09:30:13,582 INFO L226 Difference]: Without dead ends: 3367 [2022-11-20 09:30:13,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 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 09:30:13,600 INFO L413 NwaCegarLoop]: 2854 mSDtfsCounter, 2271 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:13,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2271 Valid, 5181 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:30:13,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-11-20 09:30:13,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3363. [2022-11-20 09:30:13,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 2185 states have (on average 1.2123569794050344) internal successors, (2649), 2247 states have internal predecessors, (2649), 972 states have call successors, (972), 204 states have call predecessors, (972), 203 states have return successors, (969), 961 states have call predecessors, (969), 969 states have call successors, (969) [2022-11-20 09:30:13,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4590 transitions. [2022-11-20 09:30:13,934 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4590 transitions. Word has length 101 [2022-11-20 09:30:13,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:13,936 INFO L495 AbstractCegarLoop]: Abstraction has 3363 states and 4590 transitions. [2022-11-20 09:30:13,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 09:30:13,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4590 transitions. [2022-11-20 09:30:13,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-20 09:30:13,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:13,950 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 09:30:13,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:14,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:14,163 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 09:30:14,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:14,164 INFO L85 PathProgramCache]: Analyzing trace with hash 382484782, now seen corresponding path program 1 times [2022-11-20 09:30:14,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:14,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730325447] [2022-11-20 09:30:14,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:14,166 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 09:30:14,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:14,168 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:14,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:15,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:15,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:15,425 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 09:30:15,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:15,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:15,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730325447] [2022-11-20 09:30:15,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730325447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:15,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:15,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:15,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412455762] [2022-11-20 09:30:15,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:15,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:15,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:15,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:15,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:15,429 INFO L87 Difference]: Start difference. First operand 3363 states and 4590 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 09:30:16,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:16,269 INFO L93 Difference]: Finished difference Result 9475 states and 12902 transitions. [2022-11-20 09:30:16,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:16,270 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 09:30:16,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:16,317 INFO L225 Difference]: With dead ends: 9475 [2022-11-20 09:30:16,317 INFO L226 Difference]: Without dead ends: 6131 [2022-11-20 09:30:16,332 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 09:30:16,333 INFO L413 NwaCegarLoop]: 2782 mSDtfsCounter, 1925 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1925 SdHoareTripleChecker+Valid, 5059 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:16,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1925 Valid, 5059 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:30:16,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2022-11-20 09:30:16,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6094. [2022-11-20 09:30:16,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6094 states, 3937 states have (on average 1.208026416052832) internal successors, (4756), 4053 states have internal predecessors, (4756), 1761 states have call successors, (1761), 394 states have call predecessors, (1761), 393 states have return successors, (1764), 1740 states have call predecessors, (1764), 1758 states have call successors, (1764) [2022-11-20 09:30:16,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6094 states to 6094 states and 8281 transitions. [2022-11-20 09:30:16,837 INFO L78 Accepts]: Start accepts. Automaton has 6094 states and 8281 transitions. Word has length 114 [2022-11-20 09:30:16,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:16,837 INFO L495 AbstractCegarLoop]: Abstraction has 6094 states and 8281 transitions. [2022-11-20 09:30:16,838 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 09:30:16,838 INFO L276 IsEmpty]: Start isEmpty. Operand 6094 states and 8281 transitions. [2022-11-20 09:30:16,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-20 09:30:16,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:16,848 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, 1] [2022-11-20 09:30:16,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:17,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:17,073 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 09:30:17,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:17,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1109694244, now seen corresponding path program 1 times [2022-11-20 09:30:17,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:17,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715049172] [2022-11-20 09:30:17,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:17,076 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 09:30:17,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:17,087 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:17,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:18,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:18,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:18,247 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 09:30:18,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:18,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:18,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715049172] [2022-11-20 09:30:18,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715049172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:18,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:18,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:18,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940390958] [2022-11-20 09:30:18,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:18,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:18,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:18,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:18,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:18,251 INFO L87 Difference]: Start difference. First operand 6094 states and 8281 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, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 09:30:18,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:18,981 INFO L93 Difference]: Finished difference Result 11944 states and 16207 transitions. [2022-11-20 09:30:18,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:18,981 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, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 115 [2022-11-20 09:30:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:19,016 INFO L225 Difference]: With dead ends: 11944 [2022-11-20 09:30:19,016 INFO L226 Difference]: Without dead ends: 5869 [2022-11-20 09:30:19,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 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 09:30:19,042 INFO L413 NwaCegarLoop]: 3208 mSDtfsCounter, 1672 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 5499 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:19,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1672 Valid, 5499 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:30:19,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5869 states. [2022-11-20 09:30:19,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5869 to 5841. [2022-11-20 09:30:19,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5841 states, 3762 states have (on average 1.203083466241361) internal successors, (4526), 3883 states have internal predecessors, (4526), 1670 states have call successors, (1670), 407 states have call predecessors, (1670), 406 states have return successors, (1670), 1649 states have call predecessors, (1670), 1667 states have call successors, (1670) [2022-11-20 09:30:19,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5841 states to 5841 states and 7866 transitions. [2022-11-20 09:30:19,441 INFO L78 Accepts]: Start accepts. Automaton has 5841 states and 7866 transitions. Word has length 115 [2022-11-20 09:30:19,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:19,442 INFO L495 AbstractCegarLoop]: Abstraction has 5841 states and 7866 transitions. [2022-11-20 09:30:19,443 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, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 09:30:19,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5841 states and 7866 transitions. [2022-11-20 09:30:19,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-20 09:30:19,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:19,445 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 09:30:19,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:19,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:19,668 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 09:30:19,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:19,668 INFO L85 PathProgramCache]: Analyzing trace with hash 112371583, now seen corresponding path program 1 times [2022-11-20 09:30:19,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:19,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339417070] [2022-11-20 09:30:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:19,670 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 09:30:19,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:19,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:19,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:20,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:20,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:20,729 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2022-11-20 09:30:20,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:20,729 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:20,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339417070] [2022-11-20 09:30:20,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339417070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:20,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:20,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:20,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642749466] [2022-11-20 09:30:20,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:20,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:20,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:20,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:20,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:20,732 INFO L87 Difference]: Start difference. First operand 5841 states and 7866 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:30:21,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:21,454 INFO L93 Difference]: Finished difference Result 16035 states and 21611 transitions. [2022-11-20 09:30:21,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:21,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2022-11-20 09:30:21,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:21,519 INFO L225 Difference]: With dead ends: 16035 [2022-11-20 09:30:21,520 INFO L226 Difference]: Without dead ends: 10213 [2022-11-20 09:30:21,546 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 09:30:21,547 INFO L413 NwaCegarLoop]: 2824 mSDtfsCounter, 2203 mSDsluCounter, 2239 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2203 SdHoareTripleChecker+Valid, 5063 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:21,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2203 Valid, 5063 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:30:21,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10213 states. [2022-11-20 09:30:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10213 to 10174. [2022-11-20 09:30:22,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10174 states, 6564 states have (on average 1.20551492992078) internal successors, (7913), 6784 states have internal predecessors, (7913), 2887 states have call successors, (2887), 724 states have call predecessors, (2887), 720 states have return successors, (2912), 2834 states have call predecessors, (2912), 2884 states have call successors, (2912) [2022-11-20 09:30:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10174 states to 10174 states and 13712 transitions. [2022-11-20 09:30:22,378 INFO L78 Accepts]: Start accepts. Automaton has 10174 states and 13712 transitions. Word has length 119 [2022-11-20 09:30:22,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:22,380 INFO L495 AbstractCegarLoop]: Abstraction has 10174 states and 13712 transitions. [2022-11-20 09:30:22,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:30:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 10174 states and 13712 transitions. [2022-11-20 09:30:22,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-20 09:30:22,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:22,385 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 09:30:22,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:22,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:22,607 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 09:30:22,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:22,607 INFO L85 PathProgramCache]: Analyzing trace with hash 404447685, now seen corresponding path program 1 times [2022-11-20 09:30:22,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:22,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117188284] [2022-11-20 09:30:22,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:22,610 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 09:30:22,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:22,611 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:22,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:23,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:23,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:23,635 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2022-11-20 09:30:23,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:23,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:23,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1117188284] [2022-11-20 09:30:23,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1117188284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:23,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:23,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:23,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090499558] [2022-11-20 09:30:23,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:23,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:23,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:23,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:23,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:23,639 INFO L87 Difference]: Start difference. First operand 10174 states and 13712 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 09:30:24,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:24,795 INFO L93 Difference]: Finished difference Result 27829 states and 37377 transitions. [2022-11-20 09:30:24,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:24,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2022-11-20 09:30:24,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:24,909 INFO L225 Difference]: With dead ends: 27829 [2022-11-20 09:30:24,909 INFO L226 Difference]: Without dead ends: 17674 [2022-11-20 09:30:24,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 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 09:30:24,952 INFO L413 NwaCegarLoop]: 3247 mSDtfsCounter, 2161 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 5560 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:24,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 5560 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:30:24,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17674 states. [2022-11-20 09:30:26,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17674 to 17633. [2022-11-20 09:30:26,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17633 states, 11469 states have (on average 1.1994070973929725) internal successors, (13756), 11825 states have internal predecessors, (13756), 4896 states have call successors, (4896), 1276 states have call predecessors, (4896), 1265 states have return successors, (4952), 4778 states have call predecessors, (4952), 4893 states have call successors, (4952) [2022-11-20 09:30:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17633 states to 17633 states and 23604 transitions. [2022-11-20 09:30:26,348 INFO L78 Accepts]: Start accepts. Automaton has 17633 states and 23604 transitions. Word has length 121 [2022-11-20 09:30:26,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:26,348 INFO L495 AbstractCegarLoop]: Abstraction has 17633 states and 23604 transitions. [2022-11-20 09:30:26,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 09:30:26,349 INFO L276 IsEmpty]: Start isEmpty. Operand 17633 states and 23604 transitions. [2022-11-20 09:30:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-20 09:30:26,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:26,352 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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 09:30:26,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:26,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:26,575 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 09:30:26,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:26,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1412768346, now seen corresponding path program 1 times [2022-11-20 09:30:26,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:26,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551523743] [2022-11-20 09:30:26,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:26,577 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 09:30:26,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:26,578 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:26,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:27,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:27,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:27,537 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-11-20 09:30:27,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:27,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:27,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1551523743] [2022-11-20 09:30:27,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1551523743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:27,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:27,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:27,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256155757] [2022-11-20 09:30:27,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:27,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:27,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:27,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:27,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:27,542 INFO L87 Difference]: Start difference. First operand 17633 states and 23604 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 09:30:29,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:29,771 INFO L93 Difference]: Finished difference Result 52080 states and 69761 transitions. [2022-11-20 09:30:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:29,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 153 [2022-11-20 09:30:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:29,960 INFO L225 Difference]: With dead ends: 52080 [2022-11-20 09:30:29,960 INFO L226 Difference]: Without dead ends: 34512 [2022-11-20 09:30:30,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 09:30:30,017 INFO L413 NwaCegarLoop]: 3297 mSDtfsCounter, 2278 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 5624 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:30,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 5624 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:30,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34512 states. [2022-11-20 09:30:32,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34512 to 34488. [2022-11-20 09:30:32,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34488 states, 22428 states have (on average 1.200151596219012) internal successors, (26917), 23098 states have internal predecessors, (26917), 9576 states have call successors, (9576), 2502 states have call predecessors, (9576), 2481 states have return successors, (9691), 9381 states have call predecessors, (9691), 9573 states have call successors, (9691) [2022-11-20 09:30:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34488 states to 34488 states and 46184 transitions. [2022-11-20 09:30:32,785 INFO L78 Accepts]: Start accepts. Automaton has 34488 states and 46184 transitions. Word has length 153 [2022-11-20 09:30:32,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:32,786 INFO L495 AbstractCegarLoop]: Abstraction has 34488 states and 46184 transitions. [2022-11-20 09:30:32,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 09:30:32,786 INFO L276 IsEmpty]: Start isEmpty. Operand 34488 states and 46184 transitions. [2022-11-20 09:30:32,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-20 09:30:32,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:32,790 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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 09:30:32,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:33,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:33,003 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 09:30:33,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:33,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1835470172, now seen corresponding path program 1 times [2022-11-20 09:30:33,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:33,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028011727] [2022-11-20 09:30:33,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:33,005 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 09:30:33,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:33,007 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:33,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:34,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:34,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:34,925 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-20 09:30:34,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:34,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:34,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028011727] [2022-11-20 09:30:34,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028011727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:34,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:34,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:30:34,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858199392] [2022-11-20 09:30:34,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:34,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:34,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:34,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:34,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:30:34,927 INFO L87 Difference]: Start difference. First operand 34488 states and 46184 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 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 09:30:37,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:37,502 INFO L93 Difference]: Finished difference Result 34494 states and 46189 transitions. [2022-11-20 09:30:37,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:37,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 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 153 [2022-11-20 09:30:37,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:37,653 INFO L225 Difference]: With dead ends: 34494 [2022-11-20 09:30:37,653 INFO L226 Difference]: Without dead ends: 34492 [2022-11-20 09:30:37,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:37,669 INFO L413 NwaCegarLoop]: 2350 mSDtfsCounter, 2282 mSDsluCounter, 4686 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 7036 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:37,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 7036 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:37,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34492 states. [2022-11-20 09:30:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34492 to 34492. [2022-11-20 09:30:39,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34492 states, 22431 states have (on average 1.200124827248005) internal successors, (26920), 23101 states have internal predecessors, (26920), 9576 states have call successors, (9576), 2503 states have call predecessors, (9576), 2482 states have return successors, (9691), 9381 states have call predecessors, (9691), 9573 states have call successors, (9691) [2022-11-20 09:30:40,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34492 states to 34492 states and 46187 transitions. [2022-11-20 09:30:40,131 INFO L78 Accepts]: Start accepts. Automaton has 34492 states and 46187 transitions. Word has length 153 [2022-11-20 09:30:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:40,132 INFO L495 AbstractCegarLoop]: Abstraction has 34492 states and 46187 transitions. [2022-11-20 09:30:40,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 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 09:30:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 34492 states and 46187 transitions. [2022-11-20 09:30:40,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-20 09:30:40,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:40,135 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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 09:30:40,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:40,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:40,350 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 09:30:40,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:40,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1232815681, now seen corresponding path program 1 times [2022-11-20 09:30:40,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:40,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207139708] [2022-11-20 09:30:40,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:40,352 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 09:30:40,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:40,354 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:40,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:41,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:41,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:42,134 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-20 09:30:42,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-20 09:30:42,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:42,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207139708] [2022-11-20 09:30:42,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207139708] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:42,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:42,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:30:42,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079650353] [2022-11-20 09:30:42,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:42,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:42,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:42,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:42,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:42,616 INFO L87 Difference]: Start difference. First operand 34492 states and 46187 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 09:30:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:45,324 INFO L93 Difference]: Finished difference Result 34498 states and 46192 transitions. [2022-11-20 09:30:45,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:45,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 158 [2022-11-20 09:30:45,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:45,482 INFO L225 Difference]: With dead ends: 34498 [2022-11-20 09:30:45,482 INFO L226 Difference]: Without dead ends: 34496 [2022-11-20 09:30:45,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:30:45,500 INFO L413 NwaCegarLoop]: 2353 mSDtfsCounter, 2296 mSDsluCounter, 4685 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 7038 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:45,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 7038 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:45,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34496 states. [2022-11-20 09:30:48,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34496 to 34496. [2022-11-20 09:30:48,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34496 states, 22434 states have (on average 1.200098065436391) internal successors, (26923), 23104 states have internal predecessors, (26923), 9576 states have call successors, (9576), 2504 states have call predecessors, (9576), 2483 states have return successors, (9691), 9381 states have call predecessors, (9691), 9573 states have call successors, (9691) [2022-11-20 09:30:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34496 states to 34496 states and 46190 transitions. [2022-11-20 09:30:48,337 INFO L78 Accepts]: Start accepts. Automaton has 34496 states and 46190 transitions. Word has length 158 [2022-11-20 09:30:48,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:48,338 INFO L495 AbstractCegarLoop]: Abstraction has 34496 states and 46190 transitions. [2022-11-20 09:30:48,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 09:30:48,338 INFO L276 IsEmpty]: Start isEmpty. Operand 34496 states and 46190 transitions. [2022-11-20 09:30:48,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-20 09:30:48,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:48,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:30:48,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:48,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:48,555 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 09:30:48,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:48,556 INFO L85 PathProgramCache]: Analyzing trace with hash -265491396, now seen corresponding path program 1 times [2022-11-20 09:30:48,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:48,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901138973] [2022-11-20 09:30:48,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:48,557 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 09:30:48,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:48,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:48,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:49,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:49,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:50,172 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:30:50,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:30:50,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:50,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901138973] [2022-11-20 09:30:50,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901138973] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:50,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:50,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:30:50,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395807721] [2022-11-20 09:30:50,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:50,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:50,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:50,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:50,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:50,570 INFO L87 Difference]: Start difference. First operand 34496 states and 46190 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 09:30:53,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:53,432 INFO L93 Difference]: Finished difference Result 34502 states and 46195 transitions. [2022-11-20 09:30:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:53,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 163 [2022-11-20 09:30:53,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:53,631 INFO L225 Difference]: With dead ends: 34502 [2022-11-20 09:30:53,631 INFO L226 Difference]: Without dead ends: 34500 [2022-11-20 09:30:53,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:30:53,644 INFO L413 NwaCegarLoop]: 2353 mSDtfsCounter, 2296 mSDsluCounter, 4685 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 7038 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:53,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2307 Valid, 7038 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34500 states. [2022-11-20 09:30:56,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34500 to 34500. [2022-11-20 09:30:56,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34500 states, 22437 states have (on average 1.2000713107812988) internal successors, (26926), 23107 states have internal predecessors, (26926), 9576 states have call successors, (9576), 2505 states have call predecessors, (9576), 2484 states have return successors, (9691), 9381 states have call predecessors, (9691), 9573 states have call successors, (9691) [2022-11-20 09:30:56,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34500 states to 34500 states and 46193 transitions. [2022-11-20 09:30:56,395 INFO L78 Accepts]: Start accepts. Automaton has 34500 states and 46193 transitions. Word has length 163 [2022-11-20 09:30:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:56,396 INFO L495 AbstractCegarLoop]: Abstraction has 34500 states and 46193 transitions. [2022-11-20 09:30:56,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 09:30:56,396 INFO L276 IsEmpty]: Start isEmpty. Operand 34500 states and 46193 transitions. [2022-11-20 09:30:56,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-20 09:30:56,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:56,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:30:56,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:56,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:56,624 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 09:30:56,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash 203940577, now seen corresponding path program 1 times [2022-11-20 09:30:56,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:56,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540655694] [2022-11-20 09:30:56,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:56,626 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 09:30:56,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:56,627 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:56,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_610ba29c-d388-4493-a175-612364dbe441/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 09:30:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:57,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:57,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:58,253 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-11-20 09:30:58,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-11-20 09:30:58,702 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:58,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540655694] [2022-11-20 09:30:58,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540655694] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:58,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:58,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:30:58,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552156670] [2022-11-20 09:30:58,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:58,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:58,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:58,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:58,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:58,704 INFO L87 Difference]: Start difference. First operand 34500 states and 46193 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 09:31:01,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:01,622 INFO L93 Difference]: Finished difference Result 34506 states and 46198 transitions. [2022-11-20 09:31:01,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:01,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 168 [2022-11-20 09:31:01,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:01,741 INFO L225 Difference]: With dead ends: 34506 [2022-11-20 09:31:01,741 INFO L226 Difference]: Without dead ends: 34504 [2022-11-20 09:31:01,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:01,757 INFO L413 NwaCegarLoop]: 2353 mSDtfsCounter, 2296 mSDsluCounter, 4685 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2306 SdHoareTripleChecker+Valid, 7038 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:01,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2306 Valid, 7038 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:31:01,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34504 states.