./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-fealnx.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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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-fealnx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a --- 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 10:31:22,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:31:22,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:31:22,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:31:22,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:31:22,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:31:22,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:31:22,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:31:22,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:31:22,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:31:22,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:31:22,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:31:22,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:31:22,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:31:22,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:31:22,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:31:22,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:31:22,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:31:22,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:31:22,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:31:22,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:31:22,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:31:22,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:31:22,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:31:22,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:31:22,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:31:22,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:31:22,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:31:22,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:31:22,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:31:22,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:31:22,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:31:22,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:31:22,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:31:22,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:31:22,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:31:22,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:31:22,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:31:22,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:31:22,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:31:22,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:31:22,683 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:31:22,710 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:31:22,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:31:22,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:31:22,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:31:22,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:31:22,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:31:22,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:31:22,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:31:22,713 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:31:22,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:31:22,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:31:22,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:31:22,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:31:22,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:31:22,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:31:22,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:31:22,715 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:31:22,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:31:22,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:31:22,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:31:22,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:31:22,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:31:22,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:31:22,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:31:22,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:31:22,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:31:22,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:31:22,718 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:31:22,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:31:22,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:31:22,719 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a [2022-11-20 10:31:22,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:31:22,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:31:22,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:31:22,986 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:31:22,987 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:31:22,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-11-20 10:31:26,371 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:31:27,236 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:31:27,237 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-11-20 10:31:27,296 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/data/40a7ad3a0/2fb959ea1e884294af18c60b290b738e/FLAG94047a973 [2022-11-20 10:31:27,314 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/data/40a7ad3a0/2fb959ea1e884294af18c60b290b738e [2022-11-20 10:31:27,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:31:27,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:31:27,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:31:27,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:31:27,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:31:27,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:31:27" (1/1) ... [2022-11-20 10:31:27,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5012fd18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:27, skipping insertion in model container [2022-11-20 10:31:27,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:31:27" (1/1) ... [2022-11-20 10:31:27,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:31:27,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:31:28,289 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 10:31:28,304 INFO L158 Benchmark]: Toolchain (without parser) took 983.26ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 106.4MB in the beginning and 146.9MB in the end (delta: -40.5MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2022-11-20 10:31:28,305 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:31:28,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 980.55ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 106.4MB in the beginning and 146.9MB in the end (delta: -40.5MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2022-11-20 10:31:28,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 151.0MB. Free memory is still 92.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 980.55ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 106.4MB in the beginning and 146.9MB in the end (delta: -40.5MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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-fealnx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a --- 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 10:31:31,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:31:31,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:31:31,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:31:31,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:31:31,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:31:31,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:31:31,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:31:31,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:31:31,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:31:31,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:31:31,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:31:31,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:31:31,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:31:31,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:31:31,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:31:31,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:31:31,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:31:31,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:31:31,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:31:31,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:31:31,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:31:31,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:31:31,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:31:31,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:31:31,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:31:31,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:31:31,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:31:31,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:31:31,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:31:31,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:31:31,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:31:31,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:31:31,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:31:31,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:31:31,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:31:31,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:31:31,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:31:31,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:31:31,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:31:31,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:31:31,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:31:31,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:31:31,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:31:31,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:31:31,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:31:31,253 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:31:31,254 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:31:31,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:31:31,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:31:31,255 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:31:31,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:31:31,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:31:31,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:31:31,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:31:31,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:31:31,258 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:31:31,258 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:31:31,259 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:31:31,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:31:31,259 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:31:31,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:31:31,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:31:31,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:31:31,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:31:31,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:31:31,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:31:31,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:31:31,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:31:31,262 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:31:31,263 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:31:31,263 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:31:31,263 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:31:31,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:31:31,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:31:31,264 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a [2022-11-20 10:31:31,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:31:31,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:31:31,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:31:31,784 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:31:31,785 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:31:31,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-11-20 10:31:35,196 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:31:36,043 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:31:36,043 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-11-20 10:31:36,102 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/data/645459b33/4bcd3243ecf74ca285b9aebe9cc84011/FLAGd04dc2883 [2022-11-20 10:31:36,131 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/data/645459b33/4bcd3243ecf74ca285b9aebe9cc84011 [2022-11-20 10:31:36,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:31:36,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:31:36,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:31:36,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:31:36,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:31:36,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:31:36" (1/1) ... [2022-11-20 10:31:36,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ceff215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:36, skipping insertion in model container [2022-11-20 10:31:36,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:31:36" (1/1) ... [2022-11-20 10:31:36,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:31:36,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:31:39,474 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2022-11-20 10:31:39,480 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2022-11-20 10:31:39,481 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2022-11-20 10:31:39,483 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2022-11-20 10:31:39,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:39,580 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:31:39,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:31:40,154 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2022-11-20 10:31:40,155 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2022-11-20 10:31:40,155 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2022-11-20 10:31:40,156 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2022-11-20 10:31:40,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:40,205 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:31:40,591 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2022-11-20 10:31:40,592 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2022-11-20 10:31:40,593 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2022-11-20 10:31:40,594 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_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2022-11-20 10:31:40,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:31:40,857 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:31:40,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40 WrapperNode [2022-11-20 10:31:40,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:31:40,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:31:40,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:31:40,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:31:40,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:40,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:41,135 INFO L138 Inliner]: procedures = 448, calls = 1806, calls flagged for inlining = 214, calls inlined = 197, statements flattened = 4153 [2022-11-20 10:31:41,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:31:41,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:31:41,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:31:41,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:31:41,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:41,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:41,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:41,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:41,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:41,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:41,371 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:41,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:41,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:31:41,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:31:41,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:31:41,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:31:41,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (1/1) ... [2022-11-20 10:31:41,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:31:41,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:31:41,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:31:41,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:31:41,504 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2022-11-20 10:31:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2022-11-20 10:31:41,505 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-20 10:31:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-20 10:31:41,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 10:31:41,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 10:31:41,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:31:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:31:41,506 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 10:31:41,506 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 10:31:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 10:31:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 10:31:41,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:31:41,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:31:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 10:31:41,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 10:31:41,508 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 10:31:41,509 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 10:31:41,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_79 [2022-11-20 10:31:41,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_79 [2022-11-20 10:31:41,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2022-11-20 10:31:41,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2022-11-20 10:31:41,511 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 10:31:41,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 10:31:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 10:31:41,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 10:31:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 10:31:41,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 10:31:41,512 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 10:31:41,513 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 10:31:41,513 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 10:31:41,513 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 10:31:41,513 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2022-11-20 10:31:41,513 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2022-11-20 10:31:41,513 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 10:31:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 10:31:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 10:31:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 10:31:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:31:41,514 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:31:41,514 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2022-11-20 10:31:41,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2022-11-20 10:31:41,515 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2022-11-20 10:31:41,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2022-11-20 10:31:41,516 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 10:31:41,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 10:31:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:31:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:31:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:31:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:31:41,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-20 10:31:41,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-20 10:31:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 10:31:41,518 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 10:31:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2022-11-20 10:31:41,518 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2022-11-20 10:31:41,518 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 10:31:41,518 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 10:31:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2022-11-20 10:31:41,519 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2022-11-20 10:31:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 10:31:41,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 10:31:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-20 10:31:41,519 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-20 10:31:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:31:41,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:31:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 10:31:41,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 10:31:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 10:31:41,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 10:31:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 10:31:41,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 10:31:41,522 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 10:31:41,522 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 10:31:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 10:31:41,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 10:31:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:31:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 10:31:41,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 10:31:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 10:31:41,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 10:31:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:31:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-20 10:31:41,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-20 10:31:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 10:31:41,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 10:31:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 10:31:41,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 10:31:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:31:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:31:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:31:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:31:41,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:31:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:31:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 10:31:41,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 10:31:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 10:31:41,527 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 10:31:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 10:31:41,527 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 10:31:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 10:31:41,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 10:31:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:31:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2022-11-20 10:31:41,532 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2022-11-20 10:31:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 10:31:41,532 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 10:31:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:31:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:31:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:31:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:31:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:31:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:31:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:31:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:31:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:31:41,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:31:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-11-20 10:31:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-11-20 10:31:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 10:31:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 10:31:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 10:31:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 10:31:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2022-11-20 10:31:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2022-11-20 10:31:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2022-11-20 10:31:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2022-11-20 10:31:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 10:31:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 10:31:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:31:41,545 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:31:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 10:31:41,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 10:31:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 10:31:41,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 10:31:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_78 [2022-11-20 10:31:41,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_78 [2022-11-20 10:31:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 10:31:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 10:31:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 10:31:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 10:31:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:31:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2022-11-20 10:31:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2022-11-20 10:31:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 10:31:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 10:31:41,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:31:41,548 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 10:31:41,548 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 10:31:41,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:31:41,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:31:41,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:31:41,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:31:41,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:31:41,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 10:31:41,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 10:31:41,549 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 10:31:41,549 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 10:31:41,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2022-11-20 10:31:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2022-11-20 10:31:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 10:31:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 10:31:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-11-20 10:31:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-11-20 10:31:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 10:31:41,550 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 10:31:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 10:31:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 10:31:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-20 10:31:41,551 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-20 10:31:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2022-11-20 10:31:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2022-11-20 10:31:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:31:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:31:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2022-11-20 10:31:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2022-11-20 10:31:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2022-11-20 10:31:41,553 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2022-11-20 10:31:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:31:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:31:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:31:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:31:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:31:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:31:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 10:31:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 10:31:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 10:31:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 10:31:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 10:31:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 10:31:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 10:31:41,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 10:31:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2022-11-20 10:31:41,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2022-11-20 10:31:42,731 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:31:42,736 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:31:57,502 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:32:28,858 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 10:32:28,944 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:32:28,972 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:32:28,972 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:32:28,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:28 BoogieIcfgContainer [2022-11-20 10:32:28,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:32:28,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:32:28,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:32:28,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:32:28,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:31:36" (1/3) ... [2022-11-20 10:32:28,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fb3848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:28, skipping insertion in model container [2022-11-20 10:32:28,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:31:40" (2/3) ... [2022-11-20 10:32:28,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fb3848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:32:28, skipping insertion in model container [2022-11-20 10:32:28,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:32:28" (3/3) ... [2022-11-20 10:32:28,987 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2022-11-20 10:32:29,006 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:32:29,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 10:32:29,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:32:29,116 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;@2b5286a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:32:29,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 10:32:29,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 1550 states, 1077 states have (on average 1.2739090064995358) internal successors, (1372), 1098 states have internal predecessors, (1372), 389 states have call successors, (389), 82 states have call predecessors, (389), 81 states have return successors, (383), 380 states have call predecessors, (383), 383 states have call successors, (383) [2022-11-20 10:32:29,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-20 10:32:29,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:29,160 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:32:29,160 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 10:32:29,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:29,167 INFO L85 PathProgramCache]: Analyzing trace with hash 443293420, now seen corresponding path program 1 times [2022-11-20 10:32:29,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:32:29,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314539696] [2022-11-20 10:32:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:29,189 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 10:32:29,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:32:29,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:29,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:30,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:32:30,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:30,829 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 10:32:30,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:30,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:32:30,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314539696] [2022-11-20 10:32:30,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314539696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:30,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:30,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:30,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376793286] [2022-11-20 10:32:30,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:30,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:30,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:32:30,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:30,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:30,894 INFO L87 Difference]: Start difference. First operand has 1550 states, 1077 states have (on average 1.2739090064995358) internal successors, (1372), 1098 states have internal predecessors, (1372), 389 states have call successors, (389), 82 states have call predecessors, (389), 81 states have return successors, (383), 380 states have call predecessors, (383), 383 states have call successors, (383) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 10:32:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:31,534 INFO L93 Difference]: Finished difference Result 4509 states and 6369 transitions. [2022-11-20 10:32:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:31,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2022-11-20 10:32:31,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:31,587 INFO L225 Difference]: With dead ends: 4509 [2022-11-20 10:32:31,587 INFO L226 Difference]: Without dead ends: 2972 [2022-11-20 10:32:31,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 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 10:32:31,606 INFO L413 NwaCegarLoop]: 2485 mSDtfsCounter, 1998 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 4563 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:31,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 4563 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:32:31,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2022-11-20 10:32:31,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 2968. [2022-11-20 10:32:31,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 2083 states have (on average 1.2664426308209313) internal successors, (2638), 2124 states have internal predecessors, (2638), 724 states have call successors, (724), 159 states have call predecessors, (724), 158 states have return successors, (720), 714 states have call predecessors, (720), 720 states have call successors, (720) [2022-11-20 10:32:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 4082 transitions. [2022-11-20 10:32:31,946 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 4082 transitions. Word has length 127 [2022-11-20 10:32:31,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:31,947 INFO L495 AbstractCegarLoop]: Abstraction has 2968 states and 4082 transitions. [2022-11-20 10:32:31,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 10:32:31,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 4082 transitions. [2022-11-20 10:32:31,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-20 10:32:31,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:31,953 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:32:31,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 10:32:32,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:32,175 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 10:32:32,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:32,176 INFO L85 PathProgramCache]: Analyzing trace with hash 886584666, now seen corresponding path program 1 times [2022-11-20 10:32:32,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:32:32,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657802587] [2022-11-20 10:32:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:32,178 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 10:32:32,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:32:32,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:32,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:33,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:32:33,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:33,863 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 10:32:33,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:33,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:32:33,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657802587] [2022-11-20 10:32:33,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657802587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:33,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:33,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:33,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359526716] [2022-11-20 10:32:33,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:33,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:33,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:32:33,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:33,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:33,867 INFO L87 Difference]: Start difference. First operand 2968 states and 4082 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 10:32:34,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:34,461 INFO L93 Difference]: Finished difference Result 8374 states and 11498 transitions. [2022-11-20 10:32:34,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:34,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 129 [2022-11-20 10:32:34,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:34,514 INFO L225 Difference]: With dead ends: 8374 [2022-11-20 10:32:34,515 INFO L226 Difference]: Without dead ends: 5429 [2022-11-20 10:32:34,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 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 10:32:34,609 INFO L413 NwaCegarLoop]: 2486 mSDtfsCounter, 1773 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 4535 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 10:32:34,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 4535 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:32:34,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2022-11-20 10:32:34,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 5399. [2022-11-20 10:32:34,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5399 states, 3782 states have (on average 1.2609730301427815) internal successors, (4769), 3858 states have internal predecessors, (4769), 1309 states have call successors, (1309), 308 states have call predecessors, (1309), 305 states have return successors, (1323), 1282 states have call predecessors, (1323), 1305 states have call successors, (1323) [2022-11-20 10:32:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5399 states to 5399 states and 7401 transitions. [2022-11-20 10:32:34,979 INFO L78 Accepts]: Start accepts. Automaton has 5399 states and 7401 transitions. Word has length 129 [2022-11-20 10:32:34,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:34,982 INFO L495 AbstractCegarLoop]: Abstraction has 5399 states and 7401 transitions. [2022-11-20 10:32:34,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 10:32:34,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5399 states and 7401 transitions. [2022-11-20 10:32:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-20 10:32:34,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:34,992 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:32:35,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:35,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:35,214 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 10:32:35,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:35,215 INFO L85 PathProgramCache]: Analyzing trace with hash 170065923, now seen corresponding path program 1 times [2022-11-20 10:32:35,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:32:35,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359939046] [2022-11-20 10:32:35,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:35,217 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 10:32:35,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:32:35,219 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:35,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:36,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:32:36,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:36,485 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 10:32:36,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:36,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:32:36,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359939046] [2022-11-20 10:32:36,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359939046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:36,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:36,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:36,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330181250] [2022-11-20 10:32:36,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:36,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:36,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:32:36,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:36,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:36,488 INFO L87 Difference]: Start difference. First operand 5399 states and 7401 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (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 10:32:37,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:37,184 INFO L93 Difference]: Finished difference Result 15813 states and 21673 transitions. [2022-11-20 10:32:37,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:37,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (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 132 [2022-11-20 10:32:37,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:37,310 INFO L225 Difference]: With dead ends: 15813 [2022-11-20 10:32:37,310 INFO L226 Difference]: Without dead ends: 10437 [2022-11-20 10:32:37,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 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 10:32:37,338 INFO L413 NwaCegarLoop]: 3002 mSDtfsCounter, 1998 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 5037 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:37,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 5037 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:32:37,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10437 states. [2022-11-20 10:32:37,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10437 to 10403. [2022-11-20 10:32:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10403 states, 7324 states have (on average 1.2633806663025668) internal successors, (9253), 7480 states have internal predecessors, (9253), 2479 states have call successors, (2479), 608 states have call predecessors, (2479), 597 states have return successors, (2521), 2412 states have call predecessors, (2521), 2475 states have call successors, (2521) [2022-11-20 10:32:38,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10403 states to 10403 states and 14253 transitions. [2022-11-20 10:32:38,046 INFO L78 Accepts]: Start accepts. Automaton has 10403 states and 14253 transitions. Word has length 132 [2022-11-20 10:32:38,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:38,046 INFO L495 AbstractCegarLoop]: Abstraction has 10403 states and 14253 transitions. [2022-11-20 10:32:38,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (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 10:32:38,047 INFO L276 IsEmpty]: Start isEmpty. Operand 10403 states and 14253 transitions. [2022-11-20 10:32:38,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-20 10:32:38,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:38,050 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:32:38,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:38,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:38,276 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 10:32:38,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:38,276 INFO L85 PathProgramCache]: Analyzing trace with hash 474393768, now seen corresponding path program 1 times [2022-11-20 10:32:38,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:32:38,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684852267] [2022-11-20 10:32:38,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:38,278 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 10:32:38,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:32:38,279 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:38,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:39,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:32:39,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:39,565 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 10:32:39,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:39,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:32:39,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684852267] [2022-11-20 10:32:39,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684852267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:39,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:39,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:39,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629850578] [2022-11-20 10:32:39,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:39,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:39,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:32:39,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:39,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:39,575 INFO L87 Difference]: Start difference. First operand 10403 states and 14253 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, (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 10:32:41,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:41,118 INFO L93 Difference]: Finished difference Result 29607 states and 40617 transitions. [2022-11-20 10:32:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:41,119 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, (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 134 [2022-11-20 10:32:41,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:41,247 INFO L225 Difference]: With dead ends: 29607 [2022-11-20 10:32:41,247 INFO L226 Difference]: Without dead ends: 19227 [2022-11-20 10:32:41,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 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 10:32:41,289 INFO L413 NwaCegarLoop]: 2461 mSDtfsCounter, 1808 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 4502 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:41,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 4502 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:32:41,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19227 states. [2022-11-20 10:32:42,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19227 to 19191. [2022-11-20 10:32:42,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19191 states, 13390 states have (on average 1.264152352501867) internal successors, (16927), 13692 states have internal predecessors, (16927), 4645 states have call successors, (4645), 1174 states have call predecessors, (4645), 1153 states have return successors, (4739), 4502 states have call predecessors, (4739), 4641 states have call successors, (4739) [2022-11-20 10:32:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19191 states to 19191 states and 26311 transitions. [2022-11-20 10:32:42,841 INFO L78 Accepts]: Start accepts. Automaton has 19191 states and 26311 transitions. Word has length 134 [2022-11-20 10:32:42,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:42,842 INFO L495 AbstractCegarLoop]: Abstraction has 19191 states and 26311 transitions. [2022-11-20 10:32:42,843 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, (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 10:32:42,844 INFO L276 IsEmpty]: Start isEmpty. Operand 19191 states and 26311 transitions. [2022-11-20 10:32:42,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-11-20 10:32:42,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:42,847 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:32:42,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:43,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:43,062 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 10:32:43,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:43,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1686893281, now seen corresponding path program 1 times [2022-11-20 10:32:43,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:32:43,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407126827] [2022-11-20 10:32:43,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:43,065 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 10:32:43,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:32:43,066 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:43,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:44,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:44,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1134 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:32:44,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:44,291 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 10:32:44,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:44,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:32:44,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407126827] [2022-11-20 10:32:44,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407126827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:44,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:44,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:44,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517003817] [2022-11-20 10:32:44,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:44,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:44,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:32:44,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:44,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:44,294 INFO L87 Difference]: Start difference. First operand 19191 states and 26311 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, (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 10:32:45,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:45,500 INFO L93 Difference]: Finished difference Result 34709 states and 47467 transitions. [2022-11-20 10:32:45,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:45,501 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, (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 134 [2022-11-20 10:32:45,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:45,576 INFO L225 Difference]: With dead ends: 34709 [2022-11-20 10:32:45,576 INFO L226 Difference]: Without dead ends: 15541 [2022-11-20 10:32:45,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 132 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 10:32:45,633 INFO L413 NwaCegarLoop]: 2749 mSDtfsCounter, 1374 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 4798 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:45,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 4798 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 10:32:45,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15541 states. [2022-11-20 10:32:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15541 to 15501. [2022-11-20 10:32:46,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15501 states, 10872 states have (on average 1.2542310522442972) internal successors, (13636), 11120 states have internal predecessors, (13636), 3649 states have call successors, (3649), 996 states have call predecessors, (3649), 977 states have return successors, (3694), 3520 states have call predecessors, (3694), 3645 states have call successors, (3694) [2022-11-20 10:32:46,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15501 states to 15501 states and 20979 transitions. [2022-11-20 10:32:46,707 INFO L78 Accepts]: Start accepts. Automaton has 15501 states and 20979 transitions. Word has length 134 [2022-11-20 10:32:46,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:46,707 INFO L495 AbstractCegarLoop]: Abstraction has 15501 states and 20979 transitions. [2022-11-20 10:32:46,708 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, (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 10:32:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 15501 states and 20979 transitions. [2022-11-20 10:32:46,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-20 10:32:46,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:46,711 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:46,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:46,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:46,923 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 10:32:46,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:46,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2075789013, now seen corresponding path program 1 times [2022-11-20 10:32:46,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:32:46,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814443987] [2022-11-20 10:32:46,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:46,925 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 10:32:46,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:32:46,926 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:46,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:48,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:32:48,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:48,228 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 10:32:48,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:48,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:32:48,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814443987] [2022-11-20 10:32:48,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814443987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:48,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:48,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:48,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143548189] [2022-11-20 10:32:48,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:48,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:48,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:32:48,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:48,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:48,232 INFO L87 Difference]: Start difference. First operand 15501 states and 20979 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 10:32:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:49,964 INFO L93 Difference]: Finished difference Result 45407 states and 61528 transitions. [2022-11-20 10:32:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:49,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 155 [2022-11-20 10:32:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:50,121 INFO L225 Difference]: With dead ends: 45407 [2022-11-20 10:32:50,122 INFO L226 Difference]: Without dead ends: 29929 [2022-11-20 10:32:50,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 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 10:32:50,170 INFO L413 NwaCegarLoop]: 2784 mSDtfsCounter, 2056 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:50,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 4884 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:32:50,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29929 states. [2022-11-20 10:32:52,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29929 to 29871. [2022-11-20 10:32:52,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29871 states, 20933 states have (on average 1.254526345960923) internal successors, (26261), 21445 states have internal predecessors, (26261), 7054 states have call successors, (7054), 1918 states have call predecessors, (7054), 1881 states have return successors, (7148), 6775 states have call predecessors, (7148), 7050 states have call successors, (7148) [2022-11-20 10:32:52,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29871 states to 29871 states and 40463 transitions. [2022-11-20 10:32:52,402 INFO L78 Accepts]: Start accepts. Automaton has 29871 states and 40463 transitions. Word has length 155 [2022-11-20 10:32:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:32:52,403 INFO L495 AbstractCegarLoop]: Abstraction has 29871 states and 40463 transitions. [2022-11-20 10:32:52,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 10:32:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 29871 states and 40463 transitions. [2022-11-20 10:32:52,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 10:32:52,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:32:52,407 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:32:52,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:52,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:52,632 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 10:32:52,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:32:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1706900129, now seen corresponding path program 1 times [2022-11-20 10:32:52,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:32:52,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438420170] [2022-11-20 10:32:52,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:32:52,635 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 10:32:52,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:32:52,637 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:52,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:32:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:32:54,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 1183 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:32:54,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:32:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-11-20 10:32:54,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:32:54,102 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:32:54,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1438420170] [2022-11-20 10:32:54,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1438420170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:32:54,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:32:54,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:32:54,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527059557] [2022-11-20 10:32:54,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:32:54,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:32:54,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:32:54,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:32:54,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:32:54,106 INFO L87 Difference]: Start difference. First operand 29871 states and 40463 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 10:32:57,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:32:57,154 INFO L93 Difference]: Finished difference Result 87593 states and 118704 transitions. [2022-11-20 10:32:57,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:32:57,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2022-11-20 10:32:57,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:32:57,411 INFO L225 Difference]: With dead ends: 87593 [2022-11-20 10:32:57,411 INFO L226 Difference]: Without dead ends: 57801 [2022-11-20 10:32:57,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 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 10:32:57,496 INFO L413 NwaCegarLoop]: 2932 mSDtfsCounter, 1962 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 5019 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:32:57,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 5019 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:32:57,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57801 states. [2022-11-20 10:33:01,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57801 to 57797. [2022-11-20 10:33:01,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57797 states, 40639 states have (on average 1.2541893255247423) internal successors, (50969), 41517 states have internal predecessors, (50969), 13506 states have call successors, (13506), 3706 states have call predecessors, (13506), 3649 states have return successors, (13698), 13109 states have call predecessors, (13698), 13502 states have call successors, (13698) [2022-11-20 10:33:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57797 states to 57797 states and 78173 transitions. [2022-11-20 10:33:01,521 INFO L78 Accepts]: Start accepts. Automaton has 57797 states and 78173 transitions. Word has length 183 [2022-11-20 10:33:01,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:01,522 INFO L495 AbstractCegarLoop]: Abstraction has 57797 states and 78173 transitions. [2022-11-20 10:33:01,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 10:33:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 57797 states and 78173 transitions. [2022-11-20 10:33:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 10:33:01,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:01,526 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:01,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:33:01,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:33:01,746 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 10:33:01,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:01,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1566351519, now seen corresponding path program 1 times [2022-11-20 10:33:01,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:01,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790228548] [2022-11-20 10:33:01,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:01,749 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 10:33:01,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:01,750 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:33:01,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:33:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:03,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 1183 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:33:03,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:03,934 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-20 10:33:03,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:33:03,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:03,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790228548] [2022-11-20 10:33:03,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790228548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:33:03,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:33:03,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:33:03,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267813042] [2022-11-20 10:33:03,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:03,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:33:03,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:03,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:33:03,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:33:03,938 INFO L87 Difference]: Start difference. First operand 57797 states and 78173 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 10:33:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:07,380 INFO L93 Difference]: Finished difference Result 57803 states and 78178 transitions. [2022-11-20 10:33:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:33:07,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 183 [2022-11-20 10:33:07,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:07,625 INFO L225 Difference]: With dead ends: 57803 [2022-11-20 10:33:07,625 INFO L226 Difference]: Without dead ends: 57801 [2022-11-20 10:33:07,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 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 10:33:07,650 INFO L413 NwaCegarLoop]: 2111 mSDtfsCounter, 2033 mSDsluCounter, 4209 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 6320 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:07,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 6320 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:33:07,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57801 states. [2022-11-20 10:33:11,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57801 to 57801. [2022-11-20 10:33:11,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57801 states, 40642 states have (on average 1.2541705624723192) internal successors, (50972), 41520 states have internal predecessors, (50972), 13506 states have call successors, (13506), 3707 states have call predecessors, (13506), 3650 states have return successors, (13698), 13109 states have call predecessors, (13698), 13502 states have call successors, (13698) [2022-11-20 10:33:11,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57801 states to 57801 states and 78176 transitions. [2022-11-20 10:33:11,574 INFO L78 Accepts]: Start accepts. Automaton has 57801 states and 78176 transitions. Word has length 183 [2022-11-20 10:33:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:33:11,575 INFO L495 AbstractCegarLoop]: Abstraction has 57801 states and 78176 transitions. [2022-11-20 10:33:11,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 10:33:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 57801 states and 78176 transitions. [2022-11-20 10:33:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-20 10:33:11,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:11,580 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:33:11,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:33:11,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:33:11,802 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 10:33:11,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:11,803 INFO L85 PathProgramCache]: Analyzing trace with hash -299422009, now seen corresponding path program 1 times [2022-11-20 10:33:11,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:33:11,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556452697] [2022-11-20 10:33:11,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:11,805 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 10:33:11,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:33:11,807 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:33:11,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7dc0b143-3f2b-4d9b-a23e-6c331fc55e3e/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 10:33:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:33:13,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:33:13,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:33:14,122 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-20 10:33:14,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:33:14,608 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-20 10:33:14,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:33:14,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556452697] [2022-11-20 10:33:14,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556452697] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:33:14,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:33:14,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 10:33:14,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377092222] [2022-11-20 10:33:14,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:33:14,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:33:14,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:33:14,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:33:14,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:33:14,612 INFO L87 Difference]: Start difference. First operand 57801 states and 78176 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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 10:33:17,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:33:17,693 INFO L93 Difference]: Finished difference Result 57807 states and 78181 transitions. [2022-11-20 10:33:17,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:33:17,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 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 188 [2022-11-20 10:33:17,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:33:17,891 INFO L225 Difference]: With dead ends: 57807 [2022-11-20 10:33:17,892 INFO L226 Difference]: Without dead ends: 57805 [2022-11-20 10:33:17,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 369 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 10:33:17,916 INFO L413 NwaCegarLoop]: 2114 mSDtfsCounter, 2050 mSDsluCounter, 4208 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 6322 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:33:17,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2061 Valid, 6322 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:33:17,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57805 states.