./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:51:18,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:51:18,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:51:18,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:51:18,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:51:18,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:51:18,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:51:18,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:51:18,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:51:18,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:51:18,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:51:18,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:51:18,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:51:18,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:51:18,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:51:18,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:51:18,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:51:18,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:51:18,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:51:18,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:51:18,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:51:18,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:51:18,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:51:18,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:51:18,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:51:18,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:51:18,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:51:18,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:51:18,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:51:18,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:51:18,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:51:18,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:51:18,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:51:18,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:51:18,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:51:18,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:51:18,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:51:18,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:51:18,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:51:18,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:51:18,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:51:18,537 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:51:18,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:51:18,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:51:18,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:51:18,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:51:18,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:51:18,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:51:18,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:51:18,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:51:18,588 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:51:18,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:51:18,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:51:18,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:51:18,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:51:18,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:51:18,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:51:18,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:51:18,591 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:51:18,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:51:18,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:51:18,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:51:18,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:51:18,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:51:18,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:51:18,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:51:18,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:51:18,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:51:18,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:51:18,594 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:51:18,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:51:18,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:51:18,596 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c [2022-11-20 11:51:18,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:51:18,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:51:18,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:51:18,902 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:51:18,902 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:51:18,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-20 11:51:22,066 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:51:22,933 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:51:22,934 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-20 11:51:23,038 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/data/3d4b81bb3/33e1b12ffdea42d8a64a2af3e52bf38e/FLAG25edea0a4 [2022-11-20 11:51:23,058 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/data/3d4b81bb3/33e1b12ffdea42d8a64a2af3e52bf38e [2022-11-20 11:51:23,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:51:23,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:51:23,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:51:23,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:51:23,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:51:23,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:51:23" (1/1) ... [2022-11-20 11:51:23,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43eb1fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:23, skipping insertion in model container [2022-11-20 11:51:23,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:51:23" (1/1) ... [2022-11-20 11:51:23,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:51:23,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:51:23,972 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 11:51:23,978 INFO L158 Benchmark]: Toolchain (without parser) took 909.15ms. Allocated memory is still 180.4MB. Free memory was 129.8MB in the beginning and 108.8MB in the end (delta: 21.0MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2022-11-20 11:51:23,978 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory was 70.9MB in the beginning and 70.8MB in the end (delta: 126.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:51:23,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 906.56ms. Allocated memory is still 180.4MB. Free memory was 129.7MB in the beginning and 108.8MB in the end (delta: 20.9MB). Peak memory consumption was 44.3MB. Max. memory is 16.1GB. [2022-11-20 11:51:23,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory was 70.9MB in the beginning and 70.8MB in the end (delta: 126.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 906.56ms. Allocated memory is still 180.4MB. Free memory was 129.7MB in the beginning and 108.8MB in the end (delta: 20.9MB). Peak memory consumption was 44.3MB. 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:51:26,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:51:26,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:51:26,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:51:26,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:51:26,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:51:26,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:51:26,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:51:26,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:51:26,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:51:26,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:51:26,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:51:26,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:51:26,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:51:26,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:51:26,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:51:26,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:51:26,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:51:26,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:51:26,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:51:26,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:51:26,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:51:26,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:51:26,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:51:26,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:51:26,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:51:26,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:51:26,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:51:26,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:51:26,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:51:26,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:51:26,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:51:26,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:51:26,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:51:26,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:51:26,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:51:26,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:51:26,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:51:26,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:51:26,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:51:26,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:51:26,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:51:26,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:51:26,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:51:26,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:51:26,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:51:26,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:51:26,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:51:26,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:51:26,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:51:26,603 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:51:26,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:51:26,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:51:26,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:51:26,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:51:26,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:51:26,605 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:51:26,605 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:51:26,605 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:51:26,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:51:26,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:51:26,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:51:26,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:51:26,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:51:26,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:51:26,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:51:26,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:51:26,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:51:26,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:51:26,608 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:51:26,608 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:51:26,608 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:51:26,608 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:51:26,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:51:26,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:51:26,609 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c8407b01b6fe267e548d9a1140b4b401c355e8b9b48d0e3e8bb3d2d9d4dce8c [2022-11-20 11:51:27,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:51:27,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:51:27,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:51:27,078 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:51:27,081 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:51:27,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-20 11:51:30,309 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:51:31,039 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:51:31,040 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-20 11:51:31,099 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/data/284b41802/1fc5f80db2064f4fa3674e4a608e1020/FLAG8942777ab [2022-11-20 11:51:31,126 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/data/284b41802/1fc5f80db2064f4fa3674e4a608e1020 [2022-11-20 11:51:31,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:51:31,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:51:31,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:51:31,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:51:31,143 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:51:31,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21118652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:31, skipping insertion in model container [2022-11-20 11:51:31,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:51:31" (1/1) ... [2022-11-20 11:51:31,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:51:31,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:51:36,805 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2022-11-20 11:51:36,810 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2022-11-20 11:51:36,811 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2022-11-20 11:51:36,812 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2022-11-20 11:51:36,813 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2022-11-20 11:51:36,814 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2022-11-20 11:51:36,814 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2022-11-20 11:51:36,815 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2022-11-20 11:51:36,815 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2022-11-20 11:51:36,817 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2022-11-20 11:51:36,818 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2022-11-20 11:51:36,819 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2022-11-20 11:51:36,819 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2022-11-20 11:51:36,822 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2022-11-20 11:51:36,823 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2022-11-20 11:51:36,823 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2022-11-20 11:51:36,824 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2022-11-20 11:51:36,824 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2022-11-20 11:51:36,825 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2022-11-20 11:51:36,825 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2022-11-20 11:51:36,826 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2022-11-20 11:51:36,826 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2022-11-20 11:51:36,829 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2022-11-20 11:51:36,830 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2022-11-20 11:51:36,831 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2022-11-20 11:51:36,831 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2022-11-20 11:51:36,833 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2022-11-20 11:51:36,834 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2022-11-20 11:51:36,836 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2022-11-20 11:51:36,836 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2022-11-20 11:51:36,837 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2022-11-20 11:51:36,838 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2022-11-20 11:51:36,839 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2022-11-20 11:51:36,840 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2022-11-20 11:51:36,840 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2022-11-20 11:51:36,841 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2022-11-20 11:51:36,841 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2022-11-20 11:51:36,842 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2022-11-20 11:51:36,843 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2022-11-20 11:51:36,844 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2022-11-20 11:51:36,844 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2022-11-20 11:51:36,845 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2022-11-20 11:51:36,845 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2022-11-20 11:51:36,852 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2022-11-20 11:51:36,853 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2022-11-20 11:51:36,853 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2022-11-20 11:51:36,854 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2022-11-20 11:51:36,856 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2022-11-20 11:51:36,856 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2022-11-20 11:51:36,857 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2022-11-20 11:51:36,857 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2022-11-20 11:51:36,858 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2022-11-20 11:51:36,858 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2022-11-20 11:51:36,859 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2022-11-20 11:51:36,860 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2022-11-20 11:51:36,860 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2022-11-20 11:51:36,860 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2022-11-20 11:51:36,861 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2022-11-20 11:51:36,861 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2022-11-20 11:51:36,862 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2022-11-20 11:51:36,863 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2022-11-20 11:51:36,864 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2022-11-20 11:51:36,864 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2022-11-20 11:51:36,865 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2022-11-20 11:51:36,866 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2022-11-20 11:51:36,866 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2022-11-20 11:51:36,867 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2022-11-20 11:51:36,867 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2022-11-20 11:51:36,868 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2022-11-20 11:51:36,868 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2022-11-20 11:51:36,869 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2022-11-20 11:51:36,871 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2022-11-20 11:51:36,871 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2022-11-20 11:51:36,872 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2022-11-20 11:51:36,873 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2022-11-20 11:51:36,874 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2022-11-20 11:51:36,875 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2022-11-20 11:51:36,876 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2022-11-20 11:51:36,878 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2022-11-20 11:51:36,879 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2022-11-20 11:51:36,879 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2022-11-20 11:51:36,880 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2022-11-20 11:51:36,880 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2022-11-20 11:51:36,881 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2022-11-20 11:51:36,881 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2022-11-20 11:51:36,882 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2022-11-20 11:51:36,882 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2022-11-20 11:51:36,883 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2022-11-20 11:51:36,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:51:36,982 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:51:37,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:51:37,631 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2022-11-20 11:51:37,632 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2022-11-20 11:51:37,633 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2022-11-20 11:51:37,633 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2022-11-20 11:51:37,633 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2022-11-20 11:51:37,634 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2022-11-20 11:51:37,634 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2022-11-20 11:51:37,635 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2022-11-20 11:51:37,635 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2022-11-20 11:51:37,636 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2022-11-20 11:51:37,636 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2022-11-20 11:51:37,636 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2022-11-20 11:51:37,637 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2022-11-20 11:51:37,637 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2022-11-20 11:51:37,638 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2022-11-20 11:51:37,638 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2022-11-20 11:51:37,639 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2022-11-20 11:51:37,639 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2022-11-20 11:51:37,639 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2022-11-20 11:51:37,640 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2022-11-20 11:51:37,640 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2022-11-20 11:51:37,641 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2022-11-20 11:51:37,641 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2022-11-20 11:51:37,642 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2022-11-20 11:51:37,642 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2022-11-20 11:51:37,643 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2022-11-20 11:51:37,643 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2022-11-20 11:51:37,643 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2022-11-20 11:51:37,644 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2022-11-20 11:51:37,644 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2022-11-20 11:51:37,645 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2022-11-20 11:51:37,645 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2022-11-20 11:51:37,645 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2022-11-20 11:51:37,646 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2022-11-20 11:51:37,646 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2022-11-20 11:51:37,647 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2022-11-20 11:51:37,647 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2022-11-20 11:51:37,648 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2022-11-20 11:51:37,648 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2022-11-20 11:51:37,648 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2022-11-20 11:51:37,649 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2022-11-20 11:51:37,649 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2022-11-20 11:51:37,650 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2022-11-20 11:51:37,650 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2022-11-20 11:51:37,650 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2022-11-20 11:51:37,651 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2022-11-20 11:51:37,651 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2022-11-20 11:51:37,652 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2022-11-20 11:51:37,652 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2022-11-20 11:51:37,653 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2022-11-20 11:51:37,653 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2022-11-20 11:51:37,653 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2022-11-20 11:51:37,654 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2022-11-20 11:51:37,654 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2022-11-20 11:51:37,655 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2022-11-20 11:51:37,655 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2022-11-20 11:51:37,655 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2022-11-20 11:51:37,656 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2022-11-20 11:51:37,656 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2022-11-20 11:51:37,657 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2022-11-20 11:51:37,657 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2022-11-20 11:51:37,658 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2022-11-20 11:51:37,658 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2022-11-20 11:51:37,658 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2022-11-20 11:51:37,659 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2022-11-20 11:51:37,659 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2022-11-20 11:51:37,660 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2022-11-20 11:51:37,660 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2022-11-20 11:51:37,661 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2022-11-20 11:51:37,661 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2022-11-20 11:51:37,661 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2022-11-20 11:51:37,662 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2022-11-20 11:51:37,662 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2022-11-20 11:51:37,663 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2022-11-20 11:51:37,663 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2022-11-20 11:51:37,663 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2022-11-20 11:51:37,664 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2022-11-20 11:51:37,664 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2022-11-20 11:51:37,665 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2022-11-20 11:51:37,665 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2022-11-20 11:51:37,665 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2022-11-20 11:51:37,666 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2022-11-20 11:51:37,666 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2022-11-20 11:51:37,667 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2022-11-20 11:51:37,667 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2022-11-20 11:51:37,667 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2022-11-20 11:51:37,668 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2022-11-20 11:51:37,668 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2022-11-20 11:51:37,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:51:37,749 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:51:38,333 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479065,479078] [2022-11-20 11:51:38,333 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479210,479223] [2022-11-20 11:51:38,333 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479356,479369] [2022-11-20 11:51:38,334 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479521,479534] [2022-11-20 11:51:38,334 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479679,479692] [2022-11-20 11:51:38,334 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479837,479850] [2022-11-20 11:51:38,335 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[479995,480008] [2022-11-20 11:51:38,335 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480155,480168] [2022-11-20 11:51:38,336 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480314,480327] [2022-11-20 11:51:38,336 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480453,480466] [2022-11-20 11:51:38,336 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480595,480608] [2022-11-20 11:51:38,337 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480744,480757] [2022-11-20 11:51:38,337 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[480883,480896] [2022-11-20 11:51:38,337 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481038,481051] [2022-11-20 11:51:38,338 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481198,481211] [2022-11-20 11:51:38,338 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481349,481362] [2022-11-20 11:51:38,338 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481500,481513] [2022-11-20 11:51:38,339 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481652,481665] [2022-11-20 11:51:38,341 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481801,481814] [2022-11-20 11:51:38,341 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[481949,481962] [2022-11-20 11:51:38,342 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482106,482119] [2022-11-20 11:51:38,342 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482255,482268] [2022-11-20 11:51:38,342 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482411,482424] [2022-11-20 11:51:38,343 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482564,482577] [2022-11-20 11:51:38,343 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482710,482723] [2022-11-20 11:51:38,344 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[482853,482866] [2022-11-20 11:51:38,344 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483005,483018] [2022-11-20 11:51:38,344 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483151,483164] [2022-11-20 11:51:38,345 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483296,483309] [2022-11-20 11:51:38,345 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483450,483463] [2022-11-20 11:51:38,345 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483601,483614] [2022-11-20 11:51:38,346 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483756,483769] [2022-11-20 11:51:38,346 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[483908,483921] [2022-11-20 11:51:38,349 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484063,484076] [2022-11-20 11:51:38,350 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484227,484240] [2022-11-20 11:51:38,350 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484383,484396] [2022-11-20 11:51:38,350 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484547,484560] [2022-11-20 11:51:38,351 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484689,484702] [2022-11-20 11:51:38,351 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[484847,484860] [2022-11-20 11:51:38,352 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485014,485027] [2022-11-20 11:51:38,353 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485173,485186] [2022-11-20 11:51:38,354 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485332,485345] [2022-11-20 11:51:38,354 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485481,485494] [2022-11-20 11:51:38,354 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485628,485641] [2022-11-20 11:51:38,355 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485767,485780] [2022-11-20 11:51:38,355 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[485930,485943] [2022-11-20 11:51:38,355 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486096,486109] [2022-11-20 11:51:38,356 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486260,486273] [2022-11-20 11:51:38,356 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486425,486438] [2022-11-20 11:51:38,357 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486590,486603] [2022-11-20 11:51:38,357 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486756,486769] [2022-11-20 11:51:38,357 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[486921,486934] [2022-11-20 11:51:38,358 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487088,487101] [2022-11-20 11:51:38,358 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487248,487261] [2022-11-20 11:51:38,358 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487410,487423] [2022-11-20 11:51:38,359 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487569,487582] [2022-11-20 11:51:38,359 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487715,487728] [2022-11-20 11:51:38,359 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[487858,487871] [2022-11-20 11:51:38,360 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488002,488015] [2022-11-20 11:51:38,360 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488145,488158] [2022-11-20 11:51:38,360 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488289,488302] [2022-11-20 11:51:38,361 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488430,488443] [2022-11-20 11:51:38,361 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488568,488581] [2022-11-20 11:51:38,361 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488726,488739] [2022-11-20 11:51:38,361 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[488885,488898] [2022-11-20 11:51:38,362 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489041,489054] [2022-11-20 11:51:38,362 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489190,489203] [2022-11-20 11:51:38,362 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489342,489355] [2022-11-20 11:51:38,363 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489493,489506] [2022-11-20 11:51:38,363 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489642,489655] [2022-11-20 11:51:38,363 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489794,489807] [2022-11-20 11:51:38,364 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[489942,489955] [2022-11-20 11:51:38,364 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490095,490108] [2022-11-20 11:51:38,364 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490246,490259] [2022-11-20 11:51:38,365 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490396,490409] [2022-11-20 11:51:38,366 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490543,490556] [2022-11-20 11:51:38,366 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490694,490707] [2022-11-20 11:51:38,366 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490845,490858] [2022-11-20 11:51:38,367 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[490993,491006] [2022-11-20 11:51:38,368 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491159,491172] [2022-11-20 11:51:38,373 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491328,491341] [2022-11-20 11:51:38,374 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491495,491508] [2022-11-20 11:51:38,374 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491663,491676] [2022-11-20 11:51:38,375 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491813,491826] [2022-11-20 11:51:38,375 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[491960,491973] [2022-11-20 11:51:38,375 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492121,492134] [2022-11-20 11:51:38,378 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492291,492304] [2022-11-20 11:51:38,378 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_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i[492453,492466] [2022-11-20 11:51:38,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:51:38,711 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:51:38,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38 WrapperNode [2022-11-20 11:51:38,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:51:38,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:51:38,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:51:38,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:51:38,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:38,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:39,193 INFO L138 Inliner]: procedures = 729, calls = 4121, calls flagged for inlining = 352, calls inlined = 254, statements flattened = 7894 [2022-11-20 11:51:39,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:51:39,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:51:39,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:51:39,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:51:39,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:39,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:39,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:39,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:39,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:39,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:39,633 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:39,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:39,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:51:39,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:51:39,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:51:39,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:51:39,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (1/1) ... [2022-11-20 11:51:39,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:51:39,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:51:39,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:51:39,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:51:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___2 [2022-11-20 11:51:39,840 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___2 [2022-11-20 11:51:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh___3 [2022-11-20 11:51:39,841 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh___3 [2022-11-20 11:51:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure set_nlink [2022-11-20 11:51:39,841 INFO L138 BoogieDeclarations]: Found implementation of procedure set_nlink [2022-11-20 11:51:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_uncompress [2022-11-20 11:51:39,841 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_uncompress [2022-11-20 11:51:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-20 11:51:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 11:51:39,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-20 11:51:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-20 11:51:39,842 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-20 11:51:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:51:39,843 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:51:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-20 11:51:39,843 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-20 11:51:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure ll_rw_block [2022-11-20 11:51:39,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_rw_block [2022-11-20 11:51:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:51:39,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:51:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 11:51:39,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-20 11:51:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-20 11:51:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-20 11:51:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:51:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:51:39,846 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_finish_page [2022-11-20 11:51:39,846 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_finish_page [2022-11-20 11:51:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-20 11:51:39,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-20 11:51:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 11:51:39,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-20 11:51:39,847 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_uncompress [2022-11-20 11:51:39,848 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_uncompress [2022-11-20 11:51:39,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2022-11-20 11:51:39,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_meta_index_mutex_of_squashfs_sb_info [2022-11-20 11:51:39,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:51:39,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:51:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_data [2022-11-20 11:51:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_data [2022-11-20 11:51:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:51:39,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:51:39,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-20 11:51:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-20 11:51:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2022-11-20 11:51:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2022-11-20 11:51:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_inode [2022-11-20 11:51:39,850 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_inode [2022-11-20 11:51:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:51:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_free [2022-11-20 11:51:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_free [2022-11-20 11:51:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure init_special_inode [2022-11-20 11:51:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure init_special_inode [2022-11-20 11:51:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:51:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:51:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_free [2022-11-20 11:51:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_free [2022-11-20 11:51:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 11:51:39,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 11:51:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_frag_lookup [2022-11-20 11:51:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_frag_lookup [2022-11-20 11:51:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-20 11:51:39,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-20 11:51:39,853 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-20 11:51:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-20 11:51:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure init_once [2022-11-20 11:51:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure init_once [2022-11-20 11:51:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure sb_bread [2022-11-20 11:51:39,854 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_bread [2022-11-20 11:51:39,854 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_init [2022-11-20 11:51:39,855 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_init [2022-11-20 11:51:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-20 11:51:39,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-20 11:51:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:51:39,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:51:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 11:51:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-20 11:51:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 11:51:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-20 11:51:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure read_indexes [2022-11-20 11:51:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure read_indexes [2022-11-20 11:51:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-20 11:51:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-20 11:51:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2022-11-20 11:51:39,857 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2022-11-20 11:51:39,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:51:39,858 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:51:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 11:51:39,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-20 11:51:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-20 11:51:39,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-20 11:51:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-20 11:51:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-20 11:51:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_i [2022-11-20 11:51:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_i [2022-11-20 11:51:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-20 11:51:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-20 11:51:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 11:51:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-20 11:51:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_next_page [2022-11-20 11:51:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_next_page [2022-11-20 11:51:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 11:51:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-20 11:51:39,861 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_export_iget [2022-11-20 11:51:39,861 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_export_iget [2022-11-20 11:51:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:51:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2022-11-20 11:51:39,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_meta_index_mutex_of_squashfs_sb_info [2022-11-20 11:51:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_user_list [2022-11-20 11:51:39,865 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_user_list [2022-11-20 11:51:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-20 11:51:39,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-20 11:51:39,865 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_uncompress [2022-11-20 11:51:39,866 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_uncompress [2022-11-20 11:51:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:51:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:51:39,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:51:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:51:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 11:51:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:51:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:51:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:51:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:51:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:51:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_statfs [2022-11-20 11:51:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_statfs [2022-11-20 11:51:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure release_meta_index [2022-11-20 11:51:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure release_meta_index [2022-11-20 11:51:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-20 11:51:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-20 11:51:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 11:51:39,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-20 11:51:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_delete [2022-11-20 11:51:39,868 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_delete [2022-11-20 11:51:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_comp_opts [2022-11-20 11:51:39,868 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_comp_opts [2022-11-20 11:51:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 11:51:39,868 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 11:51:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:51:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-20 11:51:39,869 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-20 11:51:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:51:39,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:51:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_metadata [2022-11-20 11:51:39,869 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_metadata [2022-11-20 11:51:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:51:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_read_data [2022-11-20 11:51:39,869 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_read_data [2022-11-20 11:51:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure kill_block_super [2022-11-20 11:51:39,870 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_block_super [2022-11-20 11:51:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-11-20 11:51:39,870 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-11-20 11:51:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:51:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2022-11-20 11:51:39,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2022-11-20 11:51:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:51:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:51:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:51:39,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:51:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:51:39,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:51:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_security_list [2022-11-20 11:51:39,871 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_security_list [2022-11-20 11:51:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:51:39,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:51:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2022-11-20 11:51:39,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_squashfs_stream [2022-11-20 11:51:39,871 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageError [2022-11-20 11:51:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageError [2022-11-20 11:51:39,872 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_iget [2022-11-20 11:51:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_iget [2022-11-20 11:51:39,872 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xattr_get [2022-11-20 11:51:39,872 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xattr_get [2022-11-20 11:51:39,872 INFO L130 BoogieDeclarations]: Found specification of procedure lzo_init [2022-11-20 11:51:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure lzo_init [2022-11-20 11:51:39,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:51:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:51:39,873 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_get_id [2022-11-20 11:51:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_get_id [2022-11-20 11:51:39,873 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-20 11:51:39,873 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-20 11:51:39,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-20 11:51:39,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-20 11:51:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2022-11-20 11:51:39,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2022-11-20 11:51:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 11:51:39,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 11:51:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 11:51:39,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-20 11:51:39,874 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_copy_cache [2022-11-20 11:51:39,875 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_copy_cache [2022-11-20 11:51:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:51:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 11:51:39,875 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 11:51:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-20 11:51:39,875 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-20 11:51:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 11:51:39,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-20 11:51:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:51:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure page_follow_link_light [2022-11-20 11:51:39,876 INFO L138 BoogieDeclarations]: Found implementation of procedure page_follow_link_light [2022-11-20 11:51:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure put_bh [2022-11-20 11:51:39,876 INFO L138 BoogieDeclarations]: Found implementation of procedure put_bh [2022-11-20 11:51:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_free [2022-11-20 11:51:39,876 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_free [2022-11-20 11:51:39,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:51:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:51:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:51:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:51:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:51:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_symlink_readpage [2022-11-20 11:51:39,877 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_symlink_readpage [2022-11-20 11:51:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 11:51:39,877 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 11:51:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 11:51:39,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-20 11:51:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:51:39,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:51:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_trusted_list [2022-11-20 11:51:39,878 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_trusted_list [2022-11-20 11:51:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:51:39,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:51:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 11:51:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-20 11:51:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 11:51:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 11:51:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 11:51:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-20 11:51:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-20 11:51:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-20 11:51:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_decompressor_destroy [2022-11-20 11:51:39,880 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_decompressor_destroy [2022-11-20 11:51:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_get [2022-11-20 11:51:39,880 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_get [2022-11-20 11:51:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:51:39,880 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:51:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 11:51:39,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-20 11:51:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_destroy_inode [2022-11-20 11:51:39,881 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_destroy_inode [2022-11-20 11:51:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:51:39,881 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:51:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 11:51:39,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 11:51:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readdir [2022-11-20 11:51:39,882 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readdir [2022-11-20 11:51:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 11:51:39,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-20 11:51:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:51:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_first_page [2022-11-20 11:51:39,882 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_first_page [2022-11-20 11:51:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:51:39,882 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_readpage [2022-11-20 11:51:39,883 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_readpage [2022-11-20 11:51:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:51:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:51:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:51:39,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:51:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-11-20 11:51:39,883 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-11-20 11:51:39,883 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_cache_put [2022-11-20 11:51:39,884 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_cache_put [2022-11-20 11:51:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2022-11-20 11:51:39,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2022-11-20 11:51:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 11:51:39,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-20 11:51:39,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2022-11-20 11:51:39,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2022-11-20 11:51:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure lz4_init [2022-11-20 11:51:39,885 INFO L138 BoogieDeclarations]: Found implementation of procedure lz4_init [2022-11-20 11:51:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 11:51:39,885 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 11:51:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 11:51:39,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 11:51:39,885 INFO L130 BoogieDeclarations]: Found specification of procedure zlib_init [2022-11-20 11:51:39,885 INFO L138 BoogieDeclarations]: Found implementation of procedure zlib_init [2022-11-20 11:51:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:51:39,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:51:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 11:51:39,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-20 11:51:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure sb_getblk [2022-11-20 11:51:39,886 INFO L138 BoogieDeclarations]: Found implementation of procedure sb_getblk [2022-11-20 11:51:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_xz_comp_opts [2022-11-20 11:51:39,887 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_xz_comp_opts [2022-11-20 11:51:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure squashfs_put_super [2022-11-20 11:51:39,887 INFO L138 BoogieDeclarations]: Found implementation of procedure squashfs_put_super [2022-11-20 11:51:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-20 11:51:39,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-20 11:51:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-20 11:51:41,419 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:51:41,423 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:51:46,748 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:53:15,860 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:53:15,885 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:53:15,888 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 11:53:15,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:53:15 BoogieIcfgContainer [2022-11-20 11:53:15,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:53:15,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:53:15,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:53:15,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:53:15,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:51:31" (1/3) ... [2022-11-20 11:53:15,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4815bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:53:15, skipping insertion in model container [2022-11-20 11:53:15,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:38" (2/3) ... [2022-11-20 11:53:15,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4815bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:53:15, skipping insertion in model container [2022-11-20 11:53:15,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:53:15" (3/3) ... [2022-11-20 11:53:15,906 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--squashfs--squashfs.ko.cil.i [2022-11-20 11:53:15,930 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:53:15,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-20 11:53:16,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:53:16,059 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;@121b6f70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:53:16,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-20 11:53:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 2499 states, 1694 states have (on average 1.3140495867768596) internal successors, (2226), 1787 states have internal predecessors, (2226), 643 states have call successors, (643), 129 states have call predecessors, (643), 128 states have return successors, (633), 616 states have call predecessors, (633), 633 states have call successors, (633) [2022-11-20 11:53:16,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 11:53:16,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:16,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:16,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:16,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:16,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1889858122, now seen corresponding path program 1 times [2022-11-20 11:53:16,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:16,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359279528] [2022-11-20 11:53:16,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:16,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:16,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:16,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:16,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 11:53:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:18,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1650 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:53:18,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:53:18,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:18,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:18,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359279528] [2022-11-20 11:53:18,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359279528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:18,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:18,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:53:18,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491533993] [2022-11-20 11:53:18,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:18,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:53:18,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:18,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:53:19,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:53:19,008 INFO L87 Difference]: Start difference. First operand has 2499 states, 1694 states have (on average 1.3140495867768596) internal successors, (2226), 1787 states have internal predecessors, (2226), 643 states have call successors, (643), 129 states have call predecessors, (643), 128 states have return successors, (633), 616 states have call predecessors, (633), 633 states have call successors, (633) Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 11:53:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:21,078 INFO L93 Difference]: Finished difference Result 5534 states and 8091 transitions. [2022-11-20 11:53:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:53:21,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2022-11-20 11:53:21,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:21,130 INFO L225 Difference]: With dead ends: 5534 [2022-11-20 11:53:21,131 INFO L226 Difference]: Without dead ends: 3021 [2022-11-20 11:53:21,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:53:21,164 INFO L413 NwaCegarLoop]: 3601 mSDtfsCounter, 1383 mSDsluCounter, 17346 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 20947 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:21,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 20947 Invalid, 679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [630 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 11:53:21,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2022-11-20 11:53:21,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 2452. [2022-11-20 11:53:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2452 states, 1658 states have (on average 1.2708082026537997) internal successors, (2107), 1742 states have internal predecessors, (2107), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:21,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2452 states to 2452 states and 3388 transitions. [2022-11-20 11:53:21,474 INFO L78 Accepts]: Start accepts. Automaton has 2452 states and 3388 transitions. Word has length 45 [2022-11-20 11:53:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:21,475 INFO L495 AbstractCegarLoop]: Abstraction has 2452 states and 3388 transitions. [2022-11-20 11:53:21,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 11:53:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2452 states and 3388 transitions. [2022-11-20 11:53:21,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-20 11:53:21,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:21,480 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 11:53:21,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:21,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:21,696 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:21,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:21,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1374086282, now seen corresponding path program 1 times [2022-11-20 11:53:21,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:21,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341722830] [2022-11-20 11:53:21,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:21,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:21,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:21,702 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:21,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 11:53:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:23,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 1684 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:23,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:24,536 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:53:24,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:24,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:24,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341722830] [2022-11-20 11:53:24,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341722830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:24,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:24,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:24,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876153079] [2022-11-20 11:53:24,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:24,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:24,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:24,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:24,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:24,540 INFO L87 Difference]: Start difference. First operand 2452 states and 3388 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 11:53:24,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:24,782 INFO L93 Difference]: Finished difference Result 2452 states and 3388 transitions. [2022-11-20 11:53:24,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:24,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 61 [2022-11-20 11:53:24,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:24,799 INFO L225 Difference]: With dead ends: 2452 [2022-11-20 11:53:24,799 INFO L226 Difference]: Without dead ends: 2450 [2022-11-20 11:53:24,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:24,802 INFO L413 NwaCegarLoop]: 3361 mSDtfsCounter, 3334 mSDsluCounter, 3343 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3336 SdHoareTripleChecker+Valid, 6704 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:24,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3336 Valid, 6704 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:24,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2022-11-20 11:53:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2450. [2022-11-20 11:53:24,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 1657 states have (on average 1.2703681351840677) internal successors, (2105), 1740 states have internal predecessors, (2105), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3386 transitions. [2022-11-20 11:53:24,963 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3386 transitions. Word has length 61 [2022-11-20 11:53:24,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:24,964 INFO L495 AbstractCegarLoop]: Abstraction has 2450 states and 3386 transitions. [2022-11-20 11:53:24,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 11:53:24,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3386 transitions. [2022-11-20 11:53:24,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-20 11:53:24,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:24,976 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-20 11:53:25,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:25,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:25,193 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:25,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:25,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1420885101, now seen corresponding path program 1 times [2022-11-20 11:53:25,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:25,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053562866] [2022-11-20 11:53:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:25,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:25,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:25,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:25,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 11:53:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:27,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:27,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:27,986 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:53:27,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:27,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:27,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053562866] [2022-11-20 11:53:27,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053562866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:27,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:27,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:27,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175385090] [2022-11-20 11:53:27,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:27,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:27,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:27,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:27,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:27,990 INFO L87 Difference]: Start difference. First operand 2450 states and 3386 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-20 11:53:28,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:28,216 INFO L93 Difference]: Finished difference Result 2450 states and 3386 transitions. [2022-11-20 11:53:28,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:28,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 63 [2022-11-20 11:53:28,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:28,231 INFO L225 Difference]: With dead ends: 2450 [2022-11-20 11:53:28,231 INFO L226 Difference]: Without dead ends: 2448 [2022-11-20 11:53:28,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:28,236 INFO L413 NwaCegarLoop]: 3360 mSDtfsCounter, 3311 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3313 SdHoareTripleChecker+Valid, 6718 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:28,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3313 Valid, 6718 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:28,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2022-11-20 11:53:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 2448. [2022-11-20 11:53:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 1656 states have (on average 1.269927536231884) internal successors, (2103), 1738 states have internal predecessors, (2103), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:28,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3384 transitions. [2022-11-20 11:53:28,412 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3384 transitions. Word has length 63 [2022-11-20 11:53:28,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:28,414 INFO L495 AbstractCegarLoop]: Abstraction has 2448 states and 3384 transitions. [2022-11-20 11:53:28,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-20 11:53:28,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3384 transitions. [2022-11-20 11:53:28,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-20 11:53:28,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:28,417 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 11:53:28,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:28,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:28,631 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:28,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:28,632 INFO L85 PathProgramCache]: Analyzing trace with hash -65186547, now seen corresponding path program 1 times [2022-11-20 11:53:28,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:28,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609157697] [2022-11-20 11:53:28,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:28,634 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:28,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:28,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:28,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 11:53:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:30,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:30,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:31,318 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:53:31,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:31,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:31,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609157697] [2022-11-20 11:53:31,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609157697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:31,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:31,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:31,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724421958] [2022-11-20 11:53:31,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:31,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:31,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:31,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:31,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:31,321 INFO L87 Difference]: Start difference. First operand 2448 states and 3384 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 11:53:31,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:31,606 INFO L93 Difference]: Finished difference Result 2448 states and 3384 transitions. [2022-11-20 11:53:31,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:31,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 64 [2022-11-20 11:53:31,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:31,622 INFO L225 Difference]: With dead ends: 2448 [2022-11-20 11:53:31,623 INFO L226 Difference]: Without dead ends: 2446 [2022-11-20 11:53:31,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:31,630 INFO L413 NwaCegarLoop]: 3357 mSDtfsCounter, 3322 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3324 SdHoareTripleChecker+Valid, 6701 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:31,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3324 Valid, 6701 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:31,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2022-11-20 11:53:31,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2446. [2022-11-20 11:53:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2446 states, 1655 states have (on average 1.2694864048338368) internal successors, (2101), 1736 states have internal predecessors, (2101), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:31,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 3382 transitions. [2022-11-20 11:53:31,832 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 3382 transitions. Word has length 64 [2022-11-20 11:53:31,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:31,836 INFO L495 AbstractCegarLoop]: Abstraction has 2446 states and 3382 transitions. [2022-11-20 11:53:31,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 11:53:31,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 3382 transitions. [2022-11-20 11:53:31,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-20 11:53:31,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:31,840 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 11:53:31,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:32,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:32,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:32,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:32,056 INFO L85 PathProgramCache]: Analyzing trace with hash -641249630, now seen corresponding path program 1 times [2022-11-20 11:53:32,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:32,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613003556] [2022-11-20 11:53:32,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:32,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:32,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:32,064 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:32,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 11:53:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:34,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:34,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:34,846 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:53:34,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:34,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:34,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613003556] [2022-11-20 11:53:34,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613003556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:34,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:34,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:34,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920154432] [2022-11-20 11:53:34,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:34,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:34,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:34,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:34,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:34,849 INFO L87 Difference]: Start difference. First operand 2446 states and 3382 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 11:53:35,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:35,202 INFO L93 Difference]: Finished difference Result 2446 states and 3382 transitions. [2022-11-20 11:53:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:35,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 67 [2022-11-20 11:53:35,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:35,222 INFO L225 Difference]: With dead ends: 2446 [2022-11-20 11:53:35,222 INFO L226 Difference]: Without dead ends: 2444 [2022-11-20 11:53:35,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:35,224 INFO L413 NwaCegarLoop]: 3355 mSDtfsCounter, 3312 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3314 SdHoareTripleChecker+Valid, 6702 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:35,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3314 Valid, 6702 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2022-11-20 11:53:35,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 2444. [2022-11-20 11:53:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2444 states, 1654 states have (on average 1.2690447400241838) internal successors, (2099), 1734 states have internal predecessors, (2099), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:35,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3380 transitions. [2022-11-20 11:53:35,436 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3380 transitions. Word has length 67 [2022-11-20 11:53:35,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:35,437 INFO L495 AbstractCegarLoop]: Abstraction has 2444 states and 3380 transitions. [2022-11-20 11:53:35,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 11:53:35,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3380 transitions. [2022-11-20 11:53:35,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-20 11:53:35,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:35,439 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-20 11:53:35,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:35,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:35,664 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:35,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:35,664 INFO L85 PathProgramCache]: Analyzing trace with hash 741314163, now seen corresponding path program 1 times [2022-11-20 11:53:35,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:35,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945296051] [2022-11-20 11:53:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:35,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:35,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:35,667 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:35,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 11:53:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:37,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:37,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:38,123 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:53:38,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:38,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:38,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945296051] [2022-11-20 11:53:38,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945296051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:38,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:38,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:38,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885811087] [2022-11-20 11:53:38,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:38,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:38,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:38,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:38,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:38,126 INFO L87 Difference]: Start difference. First operand 2444 states and 3380 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 11:53:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:38,437 INFO L93 Difference]: Finished difference Result 2444 states and 3380 transitions. [2022-11-20 11:53:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:38,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 69 [2022-11-20 11:53:38,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:38,470 INFO L225 Difference]: With dead ends: 2444 [2022-11-20 11:53:38,470 INFO L226 Difference]: Without dead ends: 2442 [2022-11-20 11:53:38,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:38,474 INFO L413 NwaCegarLoop]: 3354 mSDtfsCounter, 3299 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3301 SdHoareTripleChecker+Valid, 6706 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:38,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3301 Valid, 6706 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:38,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2022-11-20 11:53:38,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2442. [2022-11-20 11:53:38,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2442 states, 1653 states have (on average 1.2686025408348458) internal successors, (2097), 1732 states have internal predecessors, (2097), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:38,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2442 states to 2442 states and 3378 transitions. [2022-11-20 11:53:38,791 INFO L78 Accepts]: Start accepts. Automaton has 2442 states and 3378 transitions. Word has length 69 [2022-11-20 11:53:38,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:38,792 INFO L495 AbstractCegarLoop]: Abstraction has 2442 states and 3378 transitions. [2022-11-20 11:53:38,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-20 11:53:38,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2442 states and 3378 transitions. [2022-11-20 11:53:38,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-20 11:53:38,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:38,794 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-20 11:53:38,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:39,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:39,007 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:39,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash 552771449, now seen corresponding path program 1 times [2022-11-20 11:53:39,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:39,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105617881] [2022-11-20 11:53:39,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:39,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:39,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:39,012 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:39,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 11:53:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:40,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:40,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:41,532 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:53:41,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:41,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:41,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105617881] [2022-11-20 11:53:41,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105617881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:41,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:41,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:41,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901022435] [2022-11-20 11:53:41,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:41,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:41,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:41,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:41,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:41,535 INFO L87 Difference]: Start difference. First operand 2442 states and 3378 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 11:53:41,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:41,831 INFO L93 Difference]: Finished difference Result 2442 states and 3378 transitions. [2022-11-20 11:53:41,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:41,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 70 [2022-11-20 11:53:41,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:41,845 INFO L225 Difference]: With dead ends: 2442 [2022-11-20 11:53:41,845 INFO L226 Difference]: Without dead ends: 2440 [2022-11-20 11:53:41,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:41,849 INFO L413 NwaCegarLoop]: 3351 mSDtfsCounter, 3300 mSDsluCounter, 3348 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3302 SdHoareTripleChecker+Valid, 6699 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:41,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3302 Valid, 6699 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:41,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2022-11-20 11:53:42,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2440. [2022-11-20 11:53:42,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2440 states, 1652 states have (on average 1.2681598062953996) internal successors, (2095), 1730 states have internal predecessors, (2095), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 3376 transitions. [2022-11-20 11:53:42,162 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 3376 transitions. Word has length 70 [2022-11-20 11:53:42,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:42,163 INFO L495 AbstractCegarLoop]: Abstraction has 2440 states and 3376 transitions. [2022-11-20 11:53:42,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-20 11:53:42,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 3376 transitions. [2022-11-20 11:53:42,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-20 11:53:42,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:42,168 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-20 11:53:42,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:42,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:42,392 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:42,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:42,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1713681588, now seen corresponding path program 1 times [2022-11-20 11:53:42,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:42,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586519466] [2022-11-20 11:53:42,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:42,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:42,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:42,395 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:42,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 11:53:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:44,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:44,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:44,874 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:53:44,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:44,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:44,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586519466] [2022-11-20 11:53:44,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586519466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:44,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:44,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:44,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136230978] [2022-11-20 11:53:44,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:44,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:44,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:44,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:44,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:44,877 INFO L87 Difference]: Start difference. First operand 2440 states and 3376 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 11:53:45,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:45,229 INFO L93 Difference]: Finished difference Result 2440 states and 3376 transitions. [2022-11-20 11:53:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:45,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 75 [2022-11-20 11:53:45,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:45,246 INFO L225 Difference]: With dead ends: 2440 [2022-11-20 11:53:45,246 INFO L226 Difference]: Without dead ends: 2438 [2022-11-20 11:53:45,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:45,249 INFO L413 NwaCegarLoop]: 3350 mSDtfsCounter, 3289 mSDsluCounter, 3348 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3291 SdHoareTripleChecker+Valid, 6698 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:45,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3291 Valid, 6698 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:45,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2438 states. [2022-11-20 11:53:45,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2438 to 2438. [2022-11-20 11:53:45,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2438 states, 1651 states have (on average 1.2677165354330708) internal successors, (2093), 1728 states have internal predecessors, (2093), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3374 transitions. [2022-11-20 11:53:45,618 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3374 transitions. Word has length 75 [2022-11-20 11:53:45,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:45,618 INFO L495 AbstractCegarLoop]: Abstraction has 2438 states and 3374 transitions. [2022-11-20 11:53:45,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-20 11:53:45,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3374 transitions. [2022-11-20 11:53:45,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-20 11:53:45,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:45,620 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:45,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:45,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:45,844 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:45,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:45,844 INFO L85 PathProgramCache]: Analyzing trace with hash 221158599, now seen corresponding path program 1 times [2022-11-20 11:53:45,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:45,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1058219607] [2022-11-20 11:53:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:45,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:45,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:45,848 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:45,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 11:53:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:47,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:47,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:48,383 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:53:48,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:48,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:48,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1058219607] [2022-11-20 11:53:48,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1058219607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:48,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:48,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:48,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226708375] [2022-11-20 11:53:48,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:48,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:48,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:48,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:48,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:48,387 INFO L87 Difference]: Start difference. First operand 2438 states and 3374 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-20 11:53:48,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:48,687 INFO L93 Difference]: Finished difference Result 2438 states and 3374 transitions. [2022-11-20 11:53:48,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:48,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 81 [2022-11-20 11:53:48,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:48,703 INFO L225 Difference]: With dead ends: 2438 [2022-11-20 11:53:48,704 INFO L226 Difference]: Without dead ends: 2436 [2022-11-20 11:53:48,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:48,707 INFO L413 NwaCegarLoop]: 3348 mSDtfsCounter, 3281 mSDsluCounter, 3346 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3283 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:48,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3283 Valid, 6694 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2022-11-20 11:53:49,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2436. [2022-11-20 11:53:49,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 1650 states have (on average 1.2672727272727273) internal successors, (2091), 1726 states have internal predecessors, (2091), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3372 transitions. [2022-11-20 11:53:49,111 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3372 transitions. Word has length 81 [2022-11-20 11:53:49,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:49,112 INFO L495 AbstractCegarLoop]: Abstraction has 2436 states and 3372 transitions. [2022-11-20 11:53:49,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-20 11:53:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3372 transitions. [2022-11-20 11:53:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-20 11:53:49,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:49,114 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:49,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:49,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:49,334 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:49,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1158082456, now seen corresponding path program 1 times [2022-11-20 11:53:49,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:49,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [923105485] [2022-11-20 11:53:49,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:49,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:49,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:49,338 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:49,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 11:53:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:51,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:51,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:53:51,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:51,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:51,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [923105485] [2022-11-20 11:53:51,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [923105485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:51,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:51,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:51,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323598211] [2022-11-20 11:53:51,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:51,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:51,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:51,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:51,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:51,853 INFO L87 Difference]: Start difference. First operand 2436 states and 3372 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-20 11:53:52,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:52,220 INFO L93 Difference]: Finished difference Result 2436 states and 3372 transitions. [2022-11-20 11:53:52,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:52,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2022-11-20 11:53:52,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:52,235 INFO L225 Difference]: With dead ends: 2436 [2022-11-20 11:53:52,235 INFO L226 Difference]: Without dead ends: 2434 [2022-11-20 11:53:52,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:52,238 INFO L413 NwaCegarLoop]: 3346 mSDtfsCounter, 3273 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3275 SdHoareTripleChecker+Valid, 6690 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:52,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3275 Valid, 6690 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2022-11-20 11:53:52,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2434. [2022-11-20 11:53:52,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2434 states, 1649 states have (on average 1.2668283808368708) internal successors, (2089), 1724 states have internal predecessors, (2089), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:52,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2434 states to 2434 states and 3370 transitions. [2022-11-20 11:53:52,598 INFO L78 Accepts]: Start accepts. Automaton has 2434 states and 3370 transitions. Word has length 87 [2022-11-20 11:53:52,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:52,598 INFO L495 AbstractCegarLoop]: Abstraction has 2434 states and 3370 transitions. [2022-11-20 11:53:52,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-20 11:53:52,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2434 states and 3370 transitions. [2022-11-20 11:53:52,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:53:52,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:52,602 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:52,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:52,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:52,816 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:52,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:52,816 INFO L85 PathProgramCache]: Analyzing trace with hash -208209504, now seen corresponding path program 1 times [2022-11-20 11:53:52,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:52,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219286556] [2022-11-20 11:53:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:52,818 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:52,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:52,820 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:52,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 11:53:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:54,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 1710 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:53:54,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:55,359 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:53:55,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:55,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:55,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219286556] [2022-11-20 11:53:55,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219286556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:55,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:55,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:53:55,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011038584] [2022-11-20 11:53:55,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:55,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:55,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:55,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:55,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:55,361 INFO L87 Difference]: Start difference. First operand 2434 states and 3370 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-20 11:53:55,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:55,667 INFO L93 Difference]: Finished difference Result 2434 states and 3370 transitions. [2022-11-20 11:53:55,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:55,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2022-11-20 11:53:55,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:55,682 INFO L225 Difference]: With dead ends: 2434 [2022-11-20 11:53:55,682 INFO L226 Difference]: Without dead ends: 2432 [2022-11-20 11:53:55,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:55,685 INFO L413 NwaCegarLoop]: 3344 mSDtfsCounter, 3265 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3267 SdHoareTripleChecker+Valid, 6686 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:55,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3267 Valid, 6686 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:53:55,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2022-11-20 11:53:56,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2432. [2022-11-20 11:53:56,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 1648 states have (on average 1.266383495145631) internal successors, (2087), 1722 states have internal predecessors, (2087), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:53:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3368 transitions. [2022-11-20 11:53:56,039 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3368 transitions. Word has length 93 [2022-11-20 11:53:56,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:56,039 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 3368 transitions. [2022-11-20 11:53:56,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-20 11:53:56,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3368 transitions. [2022-11-20 11:53:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-20 11:53:56,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:56,042 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:56,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:56,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:56,255 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:53:56,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:56,256 INFO L85 PathProgramCache]: Analyzing trace with hash -915785871, now seen corresponding path program 1 times [2022-11-20 11:53:56,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:56,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587488990] [2022-11-20 11:53:56,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:56,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:56,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:56,265 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:56,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 11:53:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:58,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 1791 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 11:53:58,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-20 11:53:59,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:54:00,543 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-20 11:54:00,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:00,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587488990] [2022-11-20 11:54:00,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587488990] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:54:00,544 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:54:00,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-11-20 11:54:00,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764445093] [2022-11-20 11:54:00,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:54:00,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:54:00,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:00,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:54:00,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:54:00,546 INFO L87 Difference]: Start difference. First operand 2432 states and 3368 transitions. Second operand has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 5 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-20 11:54:04,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:04,569 INFO L93 Difference]: Finished difference Result 5414 states and 7575 transitions. [2022-11-20 11:54:04,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:54:04,570 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 5 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) Word has length 98 [2022-11-20 11:54:04,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:04,599 INFO L225 Difference]: With dead ends: 5414 [2022-11-20 11:54:04,607 INFO L226 Difference]: Without dead ends: 3008 [2022-11-20 11:54:04,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:54:04,620 INFO L413 NwaCegarLoop]: 4192 mSDtfsCounter, 1006 mSDsluCounter, 24305 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 28497 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:04,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 28497 Invalid, 529 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [229 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-20 11:54:04,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2022-11-20 11:54:05,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2432. [2022-11-20 11:54:05,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 1648 states have (on average 1.2657766990291262) internal successors, (2086), 1722 states have internal predecessors, (2086), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:05,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3367 transitions. [2022-11-20 11:54:05,110 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3367 transitions. Word has length 98 [2022-11-20 11:54:05,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:05,111 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 3367 transitions. [2022-11-20 11:54:05,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 5 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-20 11:54:05,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3367 transitions. [2022-11-20 11:54:05,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-20 11:54:05,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:05,115 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:05,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:05,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:05,332 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:05,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:05,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1988018041, now seen corresponding path program 1 times [2022-11-20 11:54:05,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:05,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399848141] [2022-11-20 11:54:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:05,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:05,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:05,336 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:05,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 11:54:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:07,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 1719 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:54:07,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:54:08,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:08,069 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:08,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399848141] [2022-11-20 11:54:08,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399848141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:08,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:08,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:08,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811396577] [2022-11-20 11:54:08,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:08,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:54:08,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:08,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:54:08,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:54:08,071 INFO L87 Difference]: Start difference. First operand 2432 states and 3367 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 11:54:08,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:08,660 INFO L93 Difference]: Finished difference Result 2432 states and 3367 transitions. [2022-11-20 11:54:08,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:54:08,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 99 [2022-11-20 11:54:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:08,685 INFO L225 Difference]: With dead ends: 2432 [2022-11-20 11:54:08,685 INFO L226 Difference]: Without dead ends: 2430 [2022-11-20 11:54:08,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:54:08,688 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 3256 mSDsluCounter, 3339 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3258 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:08,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3258 Valid, 6680 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:54:08,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2022-11-20 11:54:09,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 2430. [2022-11-20 11:54:09,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2430 states, 1647 states have (on average 1.265330904675167) internal successors, (2084), 1720 states have internal predecessors, (2084), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:09,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3365 transitions. [2022-11-20 11:54:09,153 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3365 transitions. Word has length 99 [2022-11-20 11:54:09,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:09,153 INFO L495 AbstractCegarLoop]: Abstraction has 2430 states and 3365 transitions. [2022-11-20 11:54:09,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 11:54:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3365 transitions. [2022-11-20 11:54:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 11:54:09,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:09,156 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:09,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:09,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:09,379 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:09,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:09,380 INFO L85 PathProgramCache]: Analyzing trace with hash -749516658, now seen corresponding path program 1 times [2022-11-20 11:54:09,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:09,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163431282] [2022-11-20 11:54:09,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:09,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:09,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:09,384 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:09,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 11:54:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:11,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1803 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:54:11,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:11,731 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-20 11:54:11,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:11,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:11,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163431282] [2022-11-20 11:54:11,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163431282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:11,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:11,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:54:11,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911375110] [2022-11-20 11:54:11,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:11,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:54:11,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:11,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:54:11,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:54:11,734 INFO L87 Difference]: Start difference. First operand 2430 states and 3365 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 11:54:12,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:12,260 INFO L93 Difference]: Finished difference Result 2444 states and 3383 transitions. [2022-11-20 11:54:12,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:54:12,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 102 [2022-11-20 11:54:12,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:12,272 INFO L225 Difference]: With dead ends: 2444 [2022-11-20 11:54:12,272 INFO L226 Difference]: Without dead ends: 2442 [2022-11-20 11:54:12,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:54:12,274 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 23 mSDsluCounter, 6679 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 10020 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:12,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 10020 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:54:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2022-11-20 11:54:12,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2432. [2022-11-20 11:54:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2432 states, 1649 states have (on average 1.265009096422074) internal successors, (2086), 1722 states have internal predecessors, (2086), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:12,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2432 states to 2432 states and 3367 transitions. [2022-11-20 11:54:12,655 INFO L78 Accepts]: Start accepts. Automaton has 2432 states and 3367 transitions. Word has length 102 [2022-11-20 11:54:12,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:12,656 INFO L495 AbstractCegarLoop]: Abstraction has 2432 states and 3367 transitions. [2022-11-20 11:54:12,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 11:54:12,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2432 states and 3367 transitions. [2022-11-20 11:54:12,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-20 11:54:12,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:12,659 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:12,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-20 11:54:12,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:12,883 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:12,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:12,884 INFO L85 PathProgramCache]: Analyzing trace with hash -749576240, now seen corresponding path program 1 times [2022-11-20 11:54:12,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:12,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582337041] [2022-11-20 11:54:12,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:12,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:12,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:12,892 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:12,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 11:54:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:15,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 1803 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:54:15,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:16,106 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-20 11:54:16,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:16,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:16,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582337041] [2022-11-20 11:54:16,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582337041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:16,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:16,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:54:16,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274154170] [2022-11-20 11:54:16,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:16,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:54:16,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:16,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:54:16,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:54:16,109 INFO L87 Difference]: Start difference. First operand 2432 states and 3367 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 11:54:25,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:25,385 INFO L93 Difference]: Finished difference Result 4834 states and 6784 transitions. [2022-11-20 11:54:25,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:54:25,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 102 [2022-11-20 11:54:25,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:25,396 INFO L225 Difference]: With dead ends: 4834 [2022-11-20 11:54:25,396 INFO L226 Difference]: Without dead ends: 2428 [2022-11-20 11:54:25,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:54:25,411 INFO L413 NwaCegarLoop]: 3337 mSDtfsCounter, 3274 mSDsluCounter, 8730 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3280 SdHoareTripleChecker+Valid, 12067 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:25,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3280 Valid, 12067 Invalid, 1276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-20 11:54:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-11-20 11:54:25,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2428. [2022-11-20 11:54:25,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2428 states, 1646 states have (on average 1.2642770352369381) internal successors, (2081), 1718 states have internal predecessors, (2081), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:25,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 3362 transitions. [2022-11-20 11:54:25,843 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 3362 transitions. Word has length 102 [2022-11-20 11:54:25,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:25,844 INFO L495 AbstractCegarLoop]: Abstraction has 2428 states and 3362 transitions. [2022-11-20 11:54:25,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 11:54:25,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 3362 transitions. [2022-11-20 11:54:25,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-20 11:54:25,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:25,847 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:25,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:26,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:26,071 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:26,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:26,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1837916158, now seen corresponding path program 1 times [2022-11-20 11:54:26,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:26,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619403990] [2022-11-20 11:54:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:26,074 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:26,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:26,076 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:26,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 11:54:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:28,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:54:28,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:29,123 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:54:29,123 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:29,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:29,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619403990] [2022-11-20 11:54:29,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619403990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:29,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:29,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:29,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069628471] [2022-11-20 11:54:29,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:29,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:54:29,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:29,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:54:29,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:54:29,126 INFO L87 Difference]: Start difference. First operand 2428 states and 3362 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:54:29,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:29,627 INFO L93 Difference]: Finished difference Result 2428 states and 3362 transitions. [2022-11-20 11:54:29,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:54:29,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2022-11-20 11:54:29,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:29,637 INFO L225 Difference]: With dead ends: 2428 [2022-11-20 11:54:29,637 INFO L226 Difference]: Without dead ends: 2426 [2022-11-20 11:54:29,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:54:29,640 INFO L413 NwaCegarLoop]: 3336 mSDtfsCounter, 3249 mSDsluCounter, 3330 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3251 SdHoareTripleChecker+Valid, 6666 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:29,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3251 Valid, 6666 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:54:29,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2022-11-20 11:54:29,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2426. [2022-11-20 11:54:29,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 1645 states have (on average 1.2638297872340425) internal successors, (2079), 1716 states have internal predecessors, (2079), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:29,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3360 transitions. [2022-11-20 11:54:29,988 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3360 transitions. Word has length 105 [2022-11-20 11:54:29,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:29,989 INFO L495 AbstractCegarLoop]: Abstraction has 2426 states and 3360 transitions. [2022-11-20 11:54:29,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:54:29,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3360 transitions. [2022-11-20 11:54:29,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-20 11:54:29,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:29,992 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:30,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-11-20 11:54:30,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:30,207 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:30,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:30,208 INFO L85 PathProgramCache]: Analyzing trace with hash -117100332, now seen corresponding path program 1 times [2022-11-20 11:54:30,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:30,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565279453] [2022-11-20 11:54:30,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:30,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:30,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:30,212 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:30,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 11:54:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:32,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:54:32,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:33,314 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-20 11:54:33,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:33,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:33,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565279453] [2022-11-20 11:54:33,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565279453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:33,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:33,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:54:33,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976259524] [2022-11-20 11:54:33,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:33,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:54:33,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:33,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:54:33,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:54:33,317 INFO L87 Difference]: Start difference. First operand 2426 states and 3360 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 11:54:33,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:33,666 INFO L93 Difference]: Finished difference Result 4822 states and 6770 transitions. [2022-11-20 11:54:33,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:54:33,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 106 [2022-11-20 11:54:33,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:33,676 INFO L225 Difference]: With dead ends: 4822 [2022-11-20 11:54:33,676 INFO L226 Difference]: Without dead ends: 2422 [2022-11-20 11:54:33,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:54:33,689 INFO L413 NwaCegarLoop]: 3331 mSDtfsCounter, 3251 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3251 SdHoareTripleChecker+Valid, 3331 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:33,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3251 Valid, 3331 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:54:33,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2022-11-20 11:54:34,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2422. [2022-11-20 11:54:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 1642 states have (on average 1.2630937880633375) internal successors, (2074), 1712 states have internal predecessors, (2074), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:34,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3355 transitions. [2022-11-20 11:54:34,137 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3355 transitions. Word has length 106 [2022-11-20 11:54:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:34,138 INFO L495 AbstractCegarLoop]: Abstraction has 2422 states and 3355 transitions. [2022-11-20 11:54:34,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-20 11:54:34,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3355 transitions. [2022-11-20 11:54:34,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-20 11:54:34,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:34,140 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:34,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:34,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:34,341 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:34,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:34,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1006023297, now seen corresponding path program 1 times [2022-11-20 11:54:34,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:34,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412633284] [2022-11-20 11:54:34,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:34,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:34,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:34,345 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:34,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-20 11:54:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:36,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1731 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:54:36,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:36,939 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:54:36,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:36,940 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:36,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412633284] [2022-11-20 11:54:36,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412633284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:36,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:36,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:36,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668062547] [2022-11-20 11:54:36,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:36,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:54:36,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:36,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:54:36,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:54:36,942 INFO L87 Difference]: Start difference. First operand 2422 states and 3355 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:54:37,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:37,318 INFO L93 Difference]: Finished difference Result 2422 states and 3355 transitions. [2022-11-20 11:54:37,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:54:37,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 107 [2022-11-20 11:54:37,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:37,328 INFO L225 Difference]: With dead ends: 2422 [2022-11-20 11:54:37,328 INFO L226 Difference]: Without dead ends: 2420 [2022-11-20 11:54:37,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:54:37,353 INFO L413 NwaCegarLoop]: 3329 mSDtfsCounter, 3236 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 6656 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:37,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 6656 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:54:37,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2022-11-20 11:54:37,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2420. [2022-11-20 11:54:37,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1641 states have (on average 1.2626447288238878) internal successors, (2072), 1710 states have internal predecessors, (2072), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:37,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3353 transitions. [2022-11-20 11:54:37,862 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3353 transitions. Word has length 107 [2022-11-20 11:54:37,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:37,862 INFO L495 AbstractCegarLoop]: Abstraction has 2420 states and 3353 transitions. [2022-11-20 11:54:37,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:54:37,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3353 transitions. [2022-11-20 11:54:37,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-20 11:54:37,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:37,865 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:37,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:38,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:38,079 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:38,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:38,080 INFO L85 PathProgramCache]: Analyzing trace with hash -173172775, now seen corresponding path program 1 times [2022-11-20 11:54:38,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:38,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212663860] [2022-11-20 11:54:38,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:38,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:38,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:38,083 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:38,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-20 11:54:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:39,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1740 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:54:39,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:40,734 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:54:40,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:40,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:40,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212663860] [2022-11-20 11:54:40,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212663860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:40,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:40,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:40,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689089137] [2022-11-20 11:54:40,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:40,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:54:40,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:40,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:54:40,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:54:40,736 INFO L87 Difference]: Start difference. First operand 2420 states and 3353 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:54:41,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:41,145 INFO L93 Difference]: Finished difference Result 2420 states and 3353 transitions. [2022-11-20 11:54:41,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:54:41,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2022-11-20 11:54:41,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:41,154 INFO L225 Difference]: With dead ends: 2420 [2022-11-20 11:54:41,154 INFO L226 Difference]: Without dead ends: 2418 [2022-11-20 11:54:41,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:54:41,157 INFO L413 NwaCegarLoop]: 3327 mSDtfsCounter, 3228 mSDsluCounter, 3325 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:41,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 6652 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:54:41,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2022-11-20 11:54:41,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2418. [2022-11-20 11:54:41,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1640 states have (on average 1.2621951219512195) internal successors, (2070), 1708 states have internal predecessors, (2070), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:41,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3351 transitions. [2022-11-20 11:54:41,785 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3351 transitions. Word has length 113 [2022-11-20 11:54:41,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:41,786 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3351 transitions. [2022-11-20 11:54:41,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-20 11:54:41,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3351 transitions. [2022-11-20 11:54:41,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-20 11:54:41,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:41,790 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:41,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:42,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:42,017 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:42,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:42,017 INFO L85 PathProgramCache]: Analyzing trace with hash 103293580, now seen corresponding path program 1 times [2022-11-20 11:54:42,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:42,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960964856] [2022-11-20 11:54:42,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:42,019 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:42,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:42,020 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:42,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-20 11:54:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:43,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:54:43,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:44,705 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:54:44,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:44,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:44,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960964856] [2022-11-20 11:54:44,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960964856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:44,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:44,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:44,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590242451] [2022-11-20 11:54:44,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:44,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:54:44,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:44,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:54:44,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:54:44,708 INFO L87 Difference]: Start difference. First operand 2418 states and 3351 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 11:54:45,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:45,106 INFO L93 Difference]: Finished difference Result 2418 states and 3351 transitions. [2022-11-20 11:54:45,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:54:45,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2022-11-20 11:54:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:45,117 INFO L225 Difference]: With dead ends: 2418 [2022-11-20 11:54:45,117 INFO L226 Difference]: Without dead ends: 2416 [2022-11-20 11:54:45,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:54:45,120 INFO L413 NwaCegarLoop]: 3324 mSDtfsCounter, 3220 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 6646 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:45,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3222 Valid, 6646 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:54:45,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-11-20 11:54:45,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2416. [2022-11-20 11:54:45,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 1639 states have (on average 1.261744966442953) internal successors, (2068), 1706 states have internal predecessors, (2068), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:45,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3349 transitions. [2022-11-20 11:54:45,725 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3349 transitions. Word has length 119 [2022-11-20 11:54:45,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:45,727 INFO L495 AbstractCegarLoop]: Abstraction has 2416 states and 3349 transitions. [2022-11-20 11:54:45,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 11:54:45,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3349 transitions. [2022-11-20 11:54:45,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-20 11:54:45,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:45,731 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:45,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:45,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:45,947 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:45,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:45,948 INFO L85 PathProgramCache]: Analyzing trace with hash 47625122, now seen corresponding path program 1 times [2022-11-20 11:54:45,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:45,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282970077] [2022-11-20 11:54:45,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:45,950 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:45,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:45,951 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:45,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-20 11:54:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:47,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 1758 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:54:47,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:48,662 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:54:48,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:48,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:48,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282970077] [2022-11-20 11:54:48,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282970077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:48,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:48,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:48,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679473741] [2022-11-20 11:54:48,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:48,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:54:48,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:48,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:54:48,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:54:48,665 INFO L87 Difference]: Start difference. First operand 2416 states and 3349 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 11:54:49,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:49,059 INFO L93 Difference]: Finished difference Result 2416 states and 3349 transitions. [2022-11-20 11:54:49,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:54:49,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 125 [2022-11-20 11:54:49,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:49,067 INFO L225 Difference]: With dead ends: 2416 [2022-11-20 11:54:49,067 INFO L226 Difference]: Without dead ends: 2414 [2022-11-20 11:54:49,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:54:49,069 INFO L413 NwaCegarLoop]: 3322 mSDtfsCounter, 3212 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3214 SdHoareTripleChecker+Valid, 6642 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:49,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3214 Valid, 6642 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:54:49,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-11-20 11:54:49,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2414. [2022-11-20 11:54:49,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 1638 states have (on average 1.2612942612942613) internal successors, (2066), 1704 states have internal predecessors, (2066), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3347 transitions. [2022-11-20 11:54:49,461 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3347 transitions. Word has length 125 [2022-11-20 11:54:49,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:49,461 INFO L495 AbstractCegarLoop]: Abstraction has 2414 states and 3347 transitions. [2022-11-20 11:54:49,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-20 11:54:49,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3347 transitions. [2022-11-20 11:54:49,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-20 11:54:49,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:49,463 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:49,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:49,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:49,664 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:49,664 INFO L85 PathProgramCache]: Analyzing trace with hash -639636178, now seen corresponding path program 1 times [2022-11-20 11:54:49,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:49,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361322129] [2022-11-20 11:54:49,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:49,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:49,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:49,667 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:49,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (23)] Waiting until timeout for monitored process [2022-11-20 11:54:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:51,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:54:51,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:54:52,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:52,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:52,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361322129] [2022-11-20 11:54:52,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361322129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:52,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:52,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:52,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897959765] [2022-11-20 11:54:52,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:52,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:54:52,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:52,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:54:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:54:52,421 INFO L87 Difference]: Start difference. First operand 2414 states and 3347 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-20 11:54:52,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:52,817 INFO L93 Difference]: Finished difference Result 2414 states and 3347 transitions. [2022-11-20 11:54:52,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:54:52,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2022-11-20 11:54:52,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:52,828 INFO L225 Difference]: With dead ends: 2414 [2022-11-20 11:54:52,828 INFO L226 Difference]: Without dead ends: 2412 [2022-11-20 11:54:52,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:54:52,830 INFO L413 NwaCegarLoop]: 3320 mSDtfsCounter, 3204 mSDsluCounter, 3318 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3206 SdHoareTripleChecker+Valid, 6638 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:52,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3206 Valid, 6638 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:54:52,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2022-11-20 11:54:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2022-11-20 11:54:53,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 1637 states have (on average 1.2608430054978619) internal successors, (2064), 1702 states have internal predecessors, (2064), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3345 transitions. [2022-11-20 11:54:53,244 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3345 transitions. Word has length 131 [2022-11-20 11:54:53,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:53,245 INFO L495 AbstractCegarLoop]: Abstraction has 2412 states and 3345 transitions. [2022-11-20 11:54:53,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-20 11:54:53,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3345 transitions. [2022-11-20 11:54:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-20 11:54:53,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:53,248 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:53,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (23)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:53,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:53,463 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:53,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:53,464 INFO L85 PathProgramCache]: Analyzing trace with hash 24009217, now seen corresponding path program 1 times [2022-11-20 11:54:53,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:53,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391366139] [2022-11-20 11:54:53,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:53,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:53,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:53,467 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:53,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (24)] Waiting until timeout for monitored process [2022-11-20 11:54:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:55,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:54:55,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:54:56,259 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:54:56,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:54:56,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:54:56,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391366139] [2022-11-20 11:54:56,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391366139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:54:56,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:54:56,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:54:56,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030621592] [2022-11-20 11:54:56,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:54:56,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:54:56,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:54:56,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:54:56,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:54:56,261 INFO L87 Difference]: Start difference. First operand 2412 states and 3345 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-20 11:54:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:54:56,668 INFO L93 Difference]: Finished difference Result 2412 states and 3345 transitions. [2022-11-20 11:54:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:54:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 137 [2022-11-20 11:54:56,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:54:56,676 INFO L225 Difference]: With dead ends: 2412 [2022-11-20 11:54:56,676 INFO L226 Difference]: Without dead ends: 2410 [2022-11-20 11:54:56,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:54:56,677 INFO L413 NwaCegarLoop]: 3318 mSDtfsCounter, 3196 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3198 SdHoareTripleChecker+Valid, 6634 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:54:56,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3198 Valid, 6634 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:54:56,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2022-11-20 11:54:57,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2410. [2022-11-20 11:54:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2410 states, 1636 states have (on average 1.2603911980440097) internal successors, (2062), 1700 states have internal predecessors, (2062), 633 states have call successors, (633), 128 states have call predecessors, (633), 128 states have return successors, (648), 615 states have call predecessors, (648), 631 states have call successors, (648) [2022-11-20 11:54:57,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 3343 transitions. [2022-11-20 11:54:57,274 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 3343 transitions. Word has length 137 [2022-11-20 11:54:57,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:54:57,275 INFO L495 AbstractCegarLoop]: Abstraction has 2410 states and 3343 transitions. [2022-11-20 11:54:57,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-20 11:54:57,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 3343 transitions. [2022-11-20 11:54:57,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-20 11:54:57,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:54:57,278 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:54:57,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (24)] Forceful destruction successful, exit code 0 [2022-11-20 11:54:57,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:57,487 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:54:57,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:54:57,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1268996812, now seen corresponding path program 1 times [2022-11-20 11:54:57,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:54:57,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60011608] [2022-11-20 11:54:57,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:54:57,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:54:57,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:54:57,491 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:54:57,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (25)] Waiting until timeout for monitored process [2022-11-20 11:54:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:54:59,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-20 11:54:59,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-20 11:55:01,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:01,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:01,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60011608] [2022-11-20 11:55:01,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60011608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:01,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:01,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-20 11:55:01,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872310950] [2022-11-20 11:55:01,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:01,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 11:55:01,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:01,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 11:55:01,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:55:01,215 INFO L87 Difference]: Start difference. First operand 2410 states and 3343 transitions. Second operand has 19 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-20 11:55:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:06,271 INFO L93 Difference]: Finished difference Result 4647 states and 6442 transitions. [2022-11-20 11:55:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 11:55:06,272 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) Word has length 175 [2022-11-20 11:55:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:06,283 INFO L225 Difference]: With dead ends: 4647 [2022-11-20 11:55:06,283 INFO L226 Difference]: Without dead ends: 2446 [2022-11-20 11:55:06,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2022-11-20 11:55:06,295 INFO L413 NwaCegarLoop]: 3312 mSDtfsCounter, 91 mSDsluCounter, 55991 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 59303 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:06,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 59303 Invalid, 925 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [231 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-20 11:55:06,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2022-11-20 11:55:06,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2422. [2022-11-20 11:55:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2422 states, 1644 states have (on average 1.2591240875912408) internal successors, (2070), 1708 states have internal predecessors, (2070), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 11:55:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3359 transitions. [2022-11-20 11:55:06,764 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3359 transitions. Word has length 175 [2022-11-20 11:55:06,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:06,765 INFO L495 AbstractCegarLoop]: Abstraction has 2422 states and 3359 transitions. [2022-11-20 11:55:06,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.277777777777778) internal successors, (77), 17 states have internal predecessors, (77), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (22), 7 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-20 11:55:06,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3359 transitions. [2022-11-20 11:55:06,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-20 11:55:06,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:06,768 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:06,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (25)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:06,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:06,977 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:55:06,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:06,977 INFO L85 PathProgramCache]: Analyzing trace with hash 961830331, now seen corresponding path program 1 times [2022-11-20 11:55:06,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:06,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385316378] [2022-11-20 11:55:06,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:06,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:06,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:06,980 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:06,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (26)] Waiting until timeout for monitored process [2022-11-20 11:55:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:08,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 1785 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:55:08,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:09,992 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:55:09,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:09,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:09,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385316378] [2022-11-20 11:55:09,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385316378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:09,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:09,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:09,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113997353] [2022-11-20 11:55:09,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:09,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:09,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:09,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:09,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:09,994 INFO L87 Difference]: Start difference. First operand 2422 states and 3359 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-20 11:55:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:10,457 INFO L93 Difference]: Finished difference Result 2422 states and 3359 transitions. [2022-11-20 11:55:10,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:10,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 143 [2022-11-20 11:55:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:10,464 INFO L225 Difference]: With dead ends: 2422 [2022-11-20 11:55:10,465 INFO L226 Difference]: Without dead ends: 2420 [2022-11-20 11:55:10,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:10,468 INFO L413 NwaCegarLoop]: 3317 mSDtfsCounter, 3188 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3190 SdHoareTripleChecker+Valid, 6632 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:10,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3190 Valid, 6632 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:10,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2022-11-20 11:55:10,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2420. [2022-11-20 11:55:10,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1643 states have (on average 1.2586731588557516) internal successors, (2068), 1706 states have internal predecessors, (2068), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 11:55:10,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 3357 transitions. [2022-11-20 11:55:10,958 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 3357 transitions. Word has length 143 [2022-11-20 11:55:10,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:10,958 INFO L495 AbstractCegarLoop]: Abstraction has 2420 states and 3357 transitions. [2022-11-20 11:55:10,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-20 11:55:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 3357 transitions. [2022-11-20 11:55:10,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 11:55:10,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:10,962 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:11,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (26)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:11,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:11,183 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:55:11,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:11,184 INFO L85 PathProgramCache]: Analyzing trace with hash 422767675, now seen corresponding path program 1 times [2022-11-20 11:55:11,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:11,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [697161443] [2022-11-20 11:55:11,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:11,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:11,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:11,187 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:11,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (27)] Waiting until timeout for monitored process [2022-11-20 11:55:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:13,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 1794 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:55:13,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:14,222 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:55:14,222 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:14,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:14,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [697161443] [2022-11-20 11:55:14,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [697161443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:14,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:14,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:14,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480058273] [2022-11-20 11:55:14,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:14,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:14,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:14,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:14,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:14,226 INFO L87 Difference]: Start difference. First operand 2420 states and 3357 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-20 11:55:14,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:14,686 INFO L93 Difference]: Finished difference Result 2420 states and 3357 transitions. [2022-11-20 11:55:14,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:14,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 149 [2022-11-20 11:55:14,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:14,695 INFO L225 Difference]: With dead ends: 2420 [2022-11-20 11:55:14,696 INFO L226 Difference]: Without dead ends: 2418 [2022-11-20 11:55:14,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:14,699 INFO L413 NwaCegarLoop]: 3315 mSDtfsCounter, 3180 mSDsluCounter, 3313 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3182 SdHoareTripleChecker+Valid, 6628 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:14,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3182 Valid, 6628 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:14,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2022-11-20 11:55:15,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2418. [2022-11-20 11:55:15,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1642 states have (on average 1.2582216808769793) internal successors, (2066), 1704 states have internal predecessors, (2066), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 11:55:15,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3355 transitions. [2022-11-20 11:55:15,423 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3355 transitions. Word has length 149 [2022-11-20 11:55:15,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:15,424 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3355 transitions. [2022-11-20 11:55:15,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-20 11:55:15,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3355 transitions. [2022-11-20 11:55:15,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-20 11:55:15,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:15,428 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:15,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (27)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:15,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:15,643 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:55:15,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:15,644 INFO L85 PathProgramCache]: Analyzing trace with hash -198032652, now seen corresponding path program 1 times [2022-11-20 11:55:15,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:15,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031181895] [2022-11-20 11:55:15,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:15,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:15,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:15,653 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:15,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (28)] Waiting until timeout for monitored process [2022-11-20 11:55:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:17,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 11:55:17,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:18,528 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 120 proven. 3 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-11-20 11:55:18,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:55:19,372 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-20 11:55:19,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:19,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031181895] [2022-11-20 11:55:19,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031181895] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:55:19,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:55:19,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2022-11-20 11:55:19,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482640419] [2022-11-20 11:55:19,374 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:55:19,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 11:55:19,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:19,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 11:55:19,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:55:19,375 INFO L87 Difference]: Start difference. First operand 2418 states and 3355 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 10 states have internal predecessors, (100), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-20 11:55:24,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:24,376 INFO L93 Difference]: Finished difference Result 5248 states and 7363 transitions. [2022-11-20 11:55:24,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:55:24,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 10 states have internal predecessors, (100), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) Word has length 191 [2022-11-20 11:55:24,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:24,387 INFO L225 Difference]: With dead ends: 5248 [2022-11-20 11:55:24,387 INFO L226 Difference]: Without dead ends: 3011 [2022-11-20 11:55:24,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:55:24,394 INFO L413 NwaCegarLoop]: 3924 mSDtfsCounter, 1944 mSDsluCounter, 24537 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 1098 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 28461 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1098 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:24,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 28461 Invalid, 1367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1098 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-20 11:55:24,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2022-11-20 11:55:25,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2418. [2022-11-20 11:55:25,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1642 states have (on average 1.2576126674786845) internal successors, (2065), 1704 states have internal predecessors, (2065), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 11:55:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3354 transitions. [2022-11-20 11:55:25,105 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3354 transitions. Word has length 191 [2022-11-20 11:55:25,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:25,105 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3354 transitions. [2022-11-20 11:55:25,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 10 states have internal predecessors, (100), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-20 11:55:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3354 transitions. [2022-11-20 11:55:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-20 11:55:25,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:25,109 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:25,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (28)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:25,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:25,336 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:55:25,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:25,336 INFO L85 PathProgramCache]: Analyzing trace with hash -739453760, now seen corresponding path program 1 times [2022-11-20 11:55:25,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:25,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519909618] [2022-11-20 11:55:25,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:25,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:25,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:25,339 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:25,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (29)] Waiting until timeout for monitored process [2022-11-20 11:55:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:27,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 1803 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:55:27,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:28,501 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:55:28,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:28,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:28,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519909618] [2022-11-20 11:55:28,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519909618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:28,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:28,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:28,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061807331] [2022-11-20 11:55:28,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:28,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:28,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:28,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:28,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:28,505 INFO L87 Difference]: Start difference. First operand 2418 states and 3354 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-20 11:55:29,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:29,046 INFO L93 Difference]: Finished difference Result 2418 states and 3354 transitions. [2022-11-20 11:55:29,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:29,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 155 [2022-11-20 11:55:29,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:29,052 INFO L225 Difference]: With dead ends: 2418 [2022-11-20 11:55:29,052 INFO L226 Difference]: Without dead ends: 2416 [2022-11-20 11:55:29,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:29,054 INFO L413 NwaCegarLoop]: 3313 mSDtfsCounter, 3172 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3174 SdHoareTripleChecker+Valid, 6624 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:29,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3174 Valid, 6624 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:29,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-11-20 11:55:29,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2416. [2022-11-20 11:55:29,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 1641 states have (on average 1.2571602681291896) internal successors, (2063), 1702 states have internal predecessors, (2063), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 11:55:29,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3352 transitions. [2022-11-20 11:55:29,547 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3352 transitions. Word has length 155 [2022-11-20 11:55:29,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:29,548 INFO L495 AbstractCegarLoop]: Abstraction has 2416 states and 3352 transitions. [2022-11-20 11:55:29,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-20 11:55:29,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3352 transitions. [2022-11-20 11:55:29,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 11:55:29,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:29,550 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:29,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (29)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:29,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:29,764 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:55:29,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:29,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1328307279, now seen corresponding path program 1 times [2022-11-20 11:55:29,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:29,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317312899] [2022-11-20 11:55:29,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:29,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:29,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:29,767 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:29,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (30)] Waiting until timeout for monitored process [2022-11-20 11:55:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:31,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 1812 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:55:31,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:32,703 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:55:32,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:32,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:32,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317312899] [2022-11-20 11:55:32,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317312899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:32,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:32,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:32,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873612796] [2022-11-20 11:55:32,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:32,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:32,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:32,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:32,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:32,706 INFO L87 Difference]: Start difference. First operand 2416 states and 3352 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-20 11:55:33,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:33,247 INFO L93 Difference]: Finished difference Result 2416 states and 3352 transitions. [2022-11-20 11:55:33,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:33,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 161 [2022-11-20 11:55:33,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:33,254 INFO L225 Difference]: With dead ends: 2416 [2022-11-20 11:55:33,254 INFO L226 Difference]: Without dead ends: 2414 [2022-11-20 11:55:33,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:33,256 INFO L413 NwaCegarLoop]: 3311 mSDtfsCounter, 3164 mSDsluCounter, 3309 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 6620 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:33,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 6620 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:33,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-11-20 11:55:33,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2414. [2022-11-20 11:55:33,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 1640 states have (on average 1.2567073170731706) internal successors, (2061), 1700 states have internal predecessors, (2061), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 11:55:33,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3350 transitions. [2022-11-20 11:55:33,751 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3350 transitions. Word has length 161 [2022-11-20 11:55:33,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:33,751 INFO L495 AbstractCegarLoop]: Abstraction has 2414 states and 3350 transitions. [2022-11-20 11:55:33,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-20 11:55:33,751 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3350 transitions. [2022-11-20 11:55:33,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-20 11:55:33,754 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:33,754 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:33,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (30)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:33,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:33,955 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:55:33,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:33,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1217270467, now seen corresponding path program 1 times [2022-11-20 11:55:33,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:33,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989742784] [2022-11-20 11:55:33,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:33,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:33,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:33,958 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:33,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (31)] Waiting until timeout for monitored process [2022-11-20 11:55:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:35,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 1821 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:55:35,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:37,160 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:55:37,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:37,161 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:37,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989742784] [2022-11-20 11:55:37,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989742784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:37,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:37,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:37,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984800046] [2022-11-20 11:55:37,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:37,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:37,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:37,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:37,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:37,163 INFO L87 Difference]: Start difference. First operand 2414 states and 3350 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-20 11:55:37,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:37,742 INFO L93 Difference]: Finished difference Result 2414 states and 3350 transitions. [2022-11-20 11:55:37,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:37,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 167 [2022-11-20 11:55:37,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:37,752 INFO L225 Difference]: With dead ends: 2414 [2022-11-20 11:55:37,753 INFO L226 Difference]: Without dead ends: 2412 [2022-11-20 11:55:37,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:37,756 INFO L413 NwaCegarLoop]: 3309 mSDtfsCounter, 3156 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3158 SdHoareTripleChecker+Valid, 6616 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:37,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3158 Valid, 6616 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:37,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2022-11-20 11:55:38,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2412. [2022-11-20 11:55:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 1639 states have (on average 1.2562538133007932) internal successors, (2059), 1698 states have internal predecessors, (2059), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 11:55:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3348 transitions. [2022-11-20 11:55:38,264 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3348 transitions. Word has length 167 [2022-11-20 11:55:38,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:38,265 INFO L495 AbstractCegarLoop]: Abstraction has 2412 states and 3348 transitions. [2022-11-20 11:55:38,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-20 11:55:38,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3348 transitions. [2022-11-20 11:55:38,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-20 11:55:38,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:38,269 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:38,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (31)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:38,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:38,483 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:55:38,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:38,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1729590920, now seen corresponding path program 1 times [2022-11-20 11:55:38,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:38,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593185179] [2022-11-20 11:55:38,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:38,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:38,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:38,487 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:38,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (32)] Waiting until timeout for monitored process [2022-11-20 11:55:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:40,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 2204 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:55:40,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-11-20 11:55:40,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:40,995 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:40,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593185179] [2022-11-20 11:55:40,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [593185179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:40,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:40,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:55:40,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968025987] [2022-11-20 11:55:40,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:40,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:55:40,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:40,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:55:40,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:55:40,997 INFO L87 Difference]: Start difference. First operand 2412 states and 3348 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 11:55:44,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:44,603 INFO L93 Difference]: Finished difference Result 5786 states and 8180 transitions. [2022-11-20 11:55:44,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:55:44,604 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 207 [2022-11-20 11:55:44,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:44,613 INFO L225 Difference]: With dead ends: 5786 [2022-11-20 11:55:44,613 INFO L226 Difference]: Without dead ends: 3555 [2022-11-20 11:55:44,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:55:44,621 INFO L413 NwaCegarLoop]: 3728 mSDtfsCounter, 2258 mSDsluCounter, 22590 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2466 SdHoareTripleChecker+Valid, 26318 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 834 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:44,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2466 Valid, 26318 Invalid, 1075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [834 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-20 11:55:44,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3555 states. [2022-11-20 11:55:45,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3555 to 2415. [2022-11-20 11:55:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 1642 states have (on average 1.2557856272838002) internal successors, (2062), 1701 states have internal predecessors, (2062), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 11:55:45,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 3351 transitions. [2022-11-20 11:55:45,212 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 3351 transitions. Word has length 207 [2022-11-20 11:55:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:45,213 INFO L495 AbstractCegarLoop]: Abstraction has 2415 states and 3351 transitions. [2022-11-20 11:55:45,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 11:55:45,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 3351 transitions. [2022-11-20 11:55:45,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-20 11:55:45,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:45,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:45,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (32)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:45,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:45,417 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:55:45,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:45,418 INFO L85 PathProgramCache]: Analyzing trace with hash 587963548, now seen corresponding path program 1 times [2022-11-20 11:55:45,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:45,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735803925] [2022-11-20 11:55:45,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:45,420 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:45,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:45,421 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:45,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (33)] Waiting until timeout for monitored process [2022-11-20 11:55:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:47,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 1830 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:55:47,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:55:48,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:48,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:48,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1735803925] [2022-11-20 11:55:48,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1735803925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:48,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:48,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:48,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672361689] [2022-11-20 11:55:48,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:48,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:48,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:48,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:48,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:48,655 INFO L87 Difference]: Start difference. First operand 2415 states and 3351 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-20 11:55:49,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:49,270 INFO L93 Difference]: Finished difference Result 2415 states and 3351 transitions. [2022-11-20 11:55:49,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:49,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2022-11-20 11:55:49,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:49,276 INFO L225 Difference]: With dead ends: 2415 [2022-11-20 11:55:49,276 INFO L226 Difference]: Without dead ends: 2413 [2022-11-20 11:55:49,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:49,278 INFO L413 NwaCegarLoop]: 3307 mSDtfsCounter, 3148 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3150 SdHoareTripleChecker+Valid, 6612 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:49,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3150 Valid, 6612 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:49,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2022-11-20 11:55:49,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 2413. [2022-11-20 11:55:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 1641 states have (on average 1.2553321145642902) internal successors, (2060), 1699 states have internal predecessors, (2060), 637 states have call successors, (637), 128 states have call predecessors, (637), 128 states have return successors, (652), 619 states have call predecessors, (652), 635 states have call successors, (652) [2022-11-20 11:55:49,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 3349 transitions. [2022-11-20 11:55:49,870 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 3349 transitions. Word has length 173 [2022-11-20 11:55:49,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:49,871 INFO L495 AbstractCegarLoop]: Abstraction has 2413 states and 3349 transitions. [2022-11-20 11:55:49,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-20 11:55:49,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 3349 transitions. [2022-11-20 11:55:49,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-20 11:55:49,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:49,873 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:49,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (33)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:50,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:50,074 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:55:50,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:50,074 INFO L85 PathProgramCache]: Analyzing trace with hash -902834346, now seen corresponding path program 1 times [2022-11-20 11:55:50,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:50,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802955665] [2022-11-20 11:55:50,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:50,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:50,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:50,077 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:50,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (34)] Waiting until timeout for monitored process [2022-11-20 11:55:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:51,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:55:51,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:55:53,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:53,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:53,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802955665] [2022-11-20 11:55:53,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802955665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:53,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:53,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:55:53,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464437344] [2022-11-20 11:55:53,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:53,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:53,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:53,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:53,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:53,416 INFO L87 Difference]: Start difference. First operand 2413 states and 3349 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-20 11:55:54,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:54,082 INFO L93 Difference]: Finished difference Result 2413 states and 3349 transitions. [2022-11-20 11:55:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:54,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 179 [2022-11-20 11:55:54,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:54,090 INFO L225 Difference]: With dead ends: 2413 [2022-11-20 11:55:54,091 INFO L226 Difference]: Without dead ends: 2238 [2022-11-20 11:55:54,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:54,093 INFO L413 NwaCegarLoop]: 3306 mSDtfsCounter, 3139 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3139 SdHoareTripleChecker+Valid, 6612 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:54,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3139 Valid, 6612 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:55:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2238 states. [2022-11-20 11:55:54,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2238 to 2238. [2022-11-20 11:55:54,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 1532 states have (on average 1.2715404699738904) internal successors, (1948), 1589 states have internal predecessors, (1948), 591 states have call successors, (591), 108 states have call predecessors, (591), 109 states have return successors, (607), 574 states have call predecessors, (607), 591 states have call successors, (607) [2022-11-20 11:55:54,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 3146 transitions. [2022-11-20 11:55:54,684 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 3146 transitions. Word has length 179 [2022-11-20 11:55:54,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:54,684 INFO L495 AbstractCegarLoop]: Abstraction has 2238 states and 3146 transitions. [2022-11-20 11:55:54,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-20 11:55:54,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 3146 transitions. [2022-11-20 11:55:54,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-20 11:55:54,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:54,686 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:54,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (34)] Ended with exit code 0 [2022-11-20 11:55:54,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:54,887 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:55:54,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:54,887 INFO L85 PathProgramCache]: Analyzing trace with hash 256597118, now seen corresponding path program 1 times [2022-11-20 11:55:54,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:54,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826691590] [2022-11-20 11:55:54,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:54,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:54,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:54,890 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:54,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (35)] Waiting until timeout for monitored process [2022-11-20 11:55:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:57,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 2237 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 11:55:57,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:58,816 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 201 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-20 11:55:58,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:56:00,111 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-11-20 11:56:00,111 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:00,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826691590] [2022-11-20 11:56:00,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826691590] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:56:00,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:56:00,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 21 [2022-11-20 11:56:00,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456014528] [2022-11-20 11:56:00,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:56:00,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-20 11:56:00,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:00,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-20 11:56:00,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2022-11-20 11:56:00,114 INFO L87 Difference]: Start difference. First operand 2238 states and 3146 transitions. Second operand has 21 states, 20 states have (on average 6.1) internal successors, (122), 19 states have internal predecessors, (122), 8 states have call successors, (47), 2 states have call predecessors, (47), 5 states have return successors, (44), 9 states have call predecessors, (44), 8 states have call successors, (44) [2022-11-20 11:56:06,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:06,220 INFO L93 Difference]: Finished difference Result 4296 states and 6050 transitions. [2022-11-20 11:56:06,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-20 11:56:06,221 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.1) internal successors, (122), 19 states have internal predecessors, (122), 8 states have call successors, (47), 2 states have call predecessors, (47), 5 states have return successors, (44), 9 states have call predecessors, (44), 8 states have call successors, (44) Word has length 230 [2022-11-20 11:56:06,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:06,227 INFO L225 Difference]: With dead ends: 4296 [2022-11-20 11:56:06,228 INFO L226 Difference]: Without dead ends: 2225 [2022-11-20 11:56:06,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=282, Invalid=1278, Unknown=0, NotChecked=0, Total=1560 [2022-11-20 11:56:06,236 INFO L413 NwaCegarLoop]: 3102 mSDtfsCounter, 132 mSDsluCounter, 52619 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 55721 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:06,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 55721 Invalid, 706 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-20 11:56:06,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2022-11-20 11:56:06,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 2225. [2022-11-20 11:56:06,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 1523 states have (on average 1.2718319107025606) internal successors, (1937), 1580 states have internal predecessors, (1937), 588 states have call successors, (588), 107 states have call predecessors, (588), 108 states have return successors, (604), 571 states have call predecessors, (604), 588 states have call successors, (604) [2022-11-20 11:56:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 3129 transitions. [2022-11-20 11:56:06,815 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 3129 transitions. Word has length 230 [2022-11-20 11:56:06,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:06,815 INFO L495 AbstractCegarLoop]: Abstraction has 2225 states and 3129 transitions. [2022-11-20 11:56:06,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.1) internal successors, (122), 19 states have internal predecessors, (122), 8 states have call successors, (47), 2 states have call predecessors, (47), 5 states have return successors, (44), 9 states have call predecessors, (44), 8 states have call successors, (44) [2022-11-20 11:56:06,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 3129 transitions. [2022-11-20 11:56:06,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-20 11:56:06,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:06,819 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:06,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (35)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:07,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:07,028 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:56:07,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:07,028 INFO L85 PathProgramCache]: Analyzing trace with hash 299553057, now seen corresponding path program 1 times [2022-11-20 11:56:07,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:07,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085843710] [2022-11-20 11:56:07,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:07,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:07,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:07,032 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:07,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (36)] Waiting until timeout for monitored process [2022-11-20 11:56:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:09,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 2304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 11:56:09,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:10,210 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-11-20 11:56:10,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:10,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:10,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085843710] [2022-11-20 11:56:10,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085843710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:10,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:10,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:56:10,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220411491] [2022-11-20 11:56:10,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:10,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:56:10,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:10,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:56:10,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:56:10,213 INFO L87 Difference]: Start difference. First operand 2225 states and 3129 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 11:56:11,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:11,955 INFO L93 Difference]: Finished difference Result 4244 states and 5980 transitions. [2022-11-20 11:56:11,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:56:11,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 248 [2022-11-20 11:56:11,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:11,964 INFO L225 Difference]: With dead ends: 4244 [2022-11-20 11:56:11,965 INFO L226 Difference]: Without dead ends: 2225 [2022-11-20 11:56:11,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:56:11,975 INFO L413 NwaCegarLoop]: 3075 mSDtfsCounter, 49 mSDsluCounter, 12196 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 15271 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:11,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 15271 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 11:56:11,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2022-11-20 11:56:12,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 2225. [2022-11-20 11:56:12,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 1523 states have (on average 1.2711753118844387) internal successors, (1936), 1580 states have internal predecessors, (1936), 588 states have call successors, (588), 107 states have call predecessors, (588), 108 states have return successors, (604), 571 states have call predecessors, (604), 588 states have call successors, (604) [2022-11-20 11:56:12,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 3128 transitions. [2022-11-20 11:56:12,544 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 3128 transitions. Word has length 248 [2022-11-20 11:56:12,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:12,544 INFO L495 AbstractCegarLoop]: Abstraction has 2225 states and 3128 transitions. [2022-11-20 11:56:12,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-20 11:56:12,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 3128 transitions. [2022-11-20 11:56:12,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-20 11:56:12,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:12,547 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:12,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (36)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:12,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:12,747 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:56:12,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:12,748 INFO L85 PathProgramCache]: Analyzing trace with hash -287252957, now seen corresponding path program 1 times [2022-11-20 11:56:12,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:12,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016919450] [2022-11-20 11:56:12,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:12,750 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:12,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:12,751 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:12,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (37)] Waiting until timeout for monitored process [2022-11-20 11:56:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:15,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 2304 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 11:56:15,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:17,676 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-11-20 11:56:17,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:17,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:17,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016919450] [2022-11-20 11:56:17,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016919450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:17,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:17,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:56:17,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860503883] [2022-11-20 11:56:17,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:17,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:56:17,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:17,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:56:17,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:56:17,681 INFO L87 Difference]: Start difference. First operand 2225 states and 3128 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2022-11-20 11:56:18,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:18,382 INFO L93 Difference]: Finished difference Result 2229 states and 3131 transitions. [2022-11-20 11:56:18,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:56:18,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 248 [2022-11-20 11:56:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:18,389 INFO L225 Difference]: With dead ends: 2229 [2022-11-20 11:56:18,389 INFO L226 Difference]: Without dead ends: 2227 [2022-11-20 11:56:18,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 244 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 11:56:18,392 INFO L413 NwaCegarLoop]: 3106 mSDtfsCounter, 2896 mSDsluCounter, 6274 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2897 SdHoareTripleChecker+Valid, 9380 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:18,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2897 Valid, 9380 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:56:18,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2022-11-20 11:56:18,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2227. [2022-11-20 11:56:18,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1525 states have (on average 1.2701639344262294) internal successors, (1937), 1581 states have internal predecessors, (1937), 588 states have call successors, (588), 108 states have call predecessors, (588), 109 states have return successors, (604), 571 states have call predecessors, (604), 588 states have call successors, (604) [2022-11-20 11:56:18,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3129 transitions. [2022-11-20 11:56:18,945 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3129 transitions. Word has length 248 [2022-11-20 11:56:18,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:18,945 INFO L495 AbstractCegarLoop]: Abstraction has 2227 states and 3129 transitions. [2022-11-20 11:56:18,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2022-11-20 11:56:18,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3129 transitions. [2022-11-20 11:56:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-20 11:56:18,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:18,948 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:18,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (37)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:19,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:19,148 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:56:19,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:19,149 INFO L85 PathProgramCache]: Analyzing trace with hash 226681518, now seen corresponding path program 1 times [2022-11-20 11:56:19,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:19,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917718981] [2022-11-20 11:56:19,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:19,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:19,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:19,152 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:19,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (38)] Waiting until timeout for monitored process [2022-11-20 11:56:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:22,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:56:22,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-11-20 11:56:24,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:24,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:24,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917718981] [2022-11-20 11:56:24,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917718981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:24,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:24,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:56:24,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756530253] [2022-11-20 11:56:24,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:24,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:56:24,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:24,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:56:24,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:56:24,624 INFO L87 Difference]: Start difference. First operand 2227 states and 3129 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-20 11:56:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:25,353 INFO L93 Difference]: Finished difference Result 2294 states and 3194 transitions. [2022-11-20 11:56:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:56:25,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 265 [2022-11-20 11:56:25,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:25,360 INFO L225 Difference]: With dead ends: 2294 [2022-11-20 11:56:25,361 INFO L226 Difference]: Without dead ends: 2292 [2022-11-20 11:56:25,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 261 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 11:56:25,362 INFO L413 NwaCegarLoop]: 3142 mSDtfsCounter, 2869 mSDsluCounter, 6423 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 9565 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:25,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 9565 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:56:25,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2022-11-20 11:56:25,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2290. [2022-11-20 11:56:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2290 states, 1567 states have (on average 1.2641991065730696) internal successors, (1981), 1623 states have internal predecessors, (1981), 597 states have call successors, (597), 120 states have call predecessors, (597), 121 states have return successors, (613), 580 states have call predecessors, (613), 597 states have call successors, (613) [2022-11-20 11:56:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3191 transitions. [2022-11-20 11:56:25,956 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3191 transitions. Word has length 265 [2022-11-20 11:56:25,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:25,957 INFO L495 AbstractCegarLoop]: Abstraction has 2290 states and 3191 transitions. [2022-11-20 11:56:25,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-20 11:56:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3191 transitions. [2022-11-20 11:56:25,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-20 11:56:25,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:25,959 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:26,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (38)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:26,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:26,160 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:56:26,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:26,161 INFO L85 PathProgramCache]: Analyzing trace with hash 770222437, now seen corresponding path program 1 times [2022-11-20 11:56:26,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:26,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244161846] [2022-11-20 11:56:26,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:26,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:26,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:26,164 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:26,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (39)] Waiting until timeout for monitored process [2022-11-20 11:56:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:29,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 2462 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 11:56:29,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 509 trivial. 0 not checked. [2022-11-20 11:56:29,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:29,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:29,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244161846] [2022-11-20 11:56:29,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244161846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:29,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:29,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:56:29,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166275526] [2022-11-20 11:56:29,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:29,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:56:29,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:29,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:56:29,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:56:29,708 INFO L87 Difference]: Start difference. First operand 2290 states and 3191 transitions. Second operand has 6 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-20 11:56:31,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:31,992 INFO L93 Difference]: Finished difference Result 4374 states and 6166 transitions. [2022-11-20 11:56:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:56:31,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 279 [2022-11-20 11:56:31,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:32,003 INFO L225 Difference]: With dead ends: 4374 [2022-11-20 11:56:32,003 INFO L226 Difference]: Without dead ends: 2290 [2022-11-20 11:56:32,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:56:32,011 INFO L413 NwaCegarLoop]: 3072 mSDtfsCounter, 17 mSDsluCounter, 12227 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 15299 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:32,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 15299 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 11:56:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2022-11-20 11:56:32,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 2290. [2022-11-20 11:56:32,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2290 states, 1567 states have (on average 1.2635609444798979) internal successors, (1980), 1623 states have internal predecessors, (1980), 597 states have call successors, (597), 120 states have call predecessors, (597), 121 states have return successors, (613), 580 states have call predecessors, (613), 597 states have call successors, (613) [2022-11-20 11:56:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2290 states to 2290 states and 3190 transitions. [2022-11-20 11:56:32,550 INFO L78 Accepts]: Start accepts. Automaton has 2290 states and 3190 transitions. Word has length 279 [2022-11-20 11:56:32,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:32,550 INFO L495 AbstractCegarLoop]: Abstraction has 2290 states and 3190 transitions. [2022-11-20 11:56:32,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-20 11:56:32,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2290 states and 3190 transitions. [2022-11-20 11:56:32,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-20 11:56:32,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:32,555 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:32,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (39)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:32,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:32,772 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:56:32,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:32,772 INFO L85 PathProgramCache]: Analyzing trace with hash -72631863, now seen corresponding path program 1 times [2022-11-20 11:56:32,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:32,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514791491] [2022-11-20 11:56:32,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:32,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:32,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:32,777 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:32,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (40)] Waiting until timeout for monitored process [2022-11-20 11:56:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:35,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 2363 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:56:35,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-11-20 11:56:35,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:35,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:35,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514791491] [2022-11-20 11:56:35,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514791491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:35,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:35,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:56:35,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291444898] [2022-11-20 11:56:35,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:35,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:56:35,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:35,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:56:35,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:56:35,904 INFO L87 Difference]: Start difference. First operand 2290 states and 3190 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-20 11:56:36,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:36,945 INFO L93 Difference]: Finished difference Result 2290 states and 3190 transitions. [2022-11-20 11:56:36,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:56:36,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) Word has length 272 [2022-11-20 11:56:36,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:36,955 INFO L225 Difference]: With dead ends: 2290 [2022-11-20 11:56:36,956 INFO L226 Difference]: Without dead ends: 2288 [2022-11-20 11:56:36,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:56:36,958 INFO L413 NwaCegarLoop]: 3106 mSDtfsCounter, 54 mSDsluCounter, 9252 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 12358 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:36,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 12358 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:56:36,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2022-11-20 11:56:37,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 2288. [2022-11-20 11:56:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2288 states, 1566 states have (on average 1.2630906768837804) internal successors, (1978), 1621 states have internal predecessors, (1978), 597 states have call successors, (597), 120 states have call predecessors, (597), 121 states have return successors, (613), 580 states have call predecessors, (613), 597 states have call successors, (613) [2022-11-20 11:56:37,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2288 states to 2288 states and 3188 transitions. [2022-11-20 11:56:37,517 INFO L78 Accepts]: Start accepts. Automaton has 2288 states and 3188 transitions. Word has length 272 [2022-11-20 11:56:37,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:37,517 INFO L495 AbstractCegarLoop]: Abstraction has 2288 states and 3188 transitions. [2022-11-20 11:56:37,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (33), 2 states have call predecessors, (33), 1 states have call successors, (33) [2022-11-20 11:56:37,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 3188 transitions. [2022-11-20 11:56:37,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-20 11:56:37,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:37,520 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 10, 10, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:37,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (40)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:37,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:37,721 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:56:37,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:37,722 INFO L85 PathProgramCache]: Analyzing trace with hash 690504272, now seen corresponding path program 1 times [2022-11-20 11:56:37,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:37,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993592033] [2022-11-20 11:56:37,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:37,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:37,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:37,724 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:37,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (41)] Waiting until timeout for monitored process [2022-11-20 11:56:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:40,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 2223 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 11:56:40,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:40,635 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2022-11-20 11:56:40,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:40,636 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:40,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993592033] [2022-11-20 11:56:40,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993592033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:40,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:40,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:56:40,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013163075] [2022-11-20 11:56:40,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:40,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:56:40,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:40,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:56:40,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:56:40,638 INFO L87 Difference]: Start difference. First operand 2288 states and 3188 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 5 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 11:56:41,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:41,693 INFO L93 Difference]: Finished difference Result 4218 states and 5879 transitions. [2022-11-20 11:56:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:56:41,694 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 5 states have call predecessors, (37), 3 states have call successors, (37) Word has length 306 [2022-11-20 11:56:41,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:41,702 INFO L225 Difference]: With dead ends: 4218 [2022-11-20 11:56:41,703 INFO L226 Difference]: Without dead ends: 2301 [2022-11-20 11:56:41,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:56:41,710 INFO L413 NwaCegarLoop]: 3108 mSDtfsCounter, 6 mSDsluCounter, 18602 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 21710 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:41,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 21710 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:56:41,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2022-11-20 11:56:42,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 2295. [2022-11-20 11:56:42,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 1571 states have (on average 1.2622533418204964) internal successors, (1983), 1625 states have internal predecessors, (1983), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 11:56:42,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 3203 transitions. [2022-11-20 11:56:42,270 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 3203 transitions. Word has length 306 [2022-11-20 11:56:42,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:42,271 INFO L495 AbstractCegarLoop]: Abstraction has 2295 states and 3203 transitions. [2022-11-20 11:56:42,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (37), 5 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 11:56:42,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 3203 transitions. [2022-11-20 11:56:42,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-20 11:56:42,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:42,274 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:42,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (41)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:42,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:42,475 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:56:42,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:42,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2008354559, now seen corresponding path program 1 times [2022-11-20 11:56:42,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:42,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062736587] [2022-11-20 11:56:42,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:42,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:42,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:42,479 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:42,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (42)] Waiting until timeout for monitored process [2022-11-20 11:56:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:45,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 11:56:45,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:46,093 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-11-20 11:56:46,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:46,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:46,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062736587] [2022-11-20 11:56:46,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062736587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:46,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:46,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:56:46,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986396365] [2022-11-20 11:56:46,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:46,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:56:46,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:46,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:56:46,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:56:46,097 INFO L87 Difference]: Start difference. First operand 2295 states and 3203 transitions. Second operand has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 11:56:48,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:48,074 INFO L93 Difference]: Finished difference Result 4438 states and 6211 transitions. [2022-11-20 11:56:48,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:56:48,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 285 [2022-11-20 11:56:48,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:48,082 INFO L225 Difference]: With dead ends: 4438 [2022-11-20 11:56:48,083 INFO L226 Difference]: Without dead ends: 2349 [2022-11-20 11:56:48,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:56:48,088 INFO L413 NwaCegarLoop]: 3151 mSDtfsCounter, 140 mSDsluCounter, 12397 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 15548 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:48,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 15548 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 11:56:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2022-11-20 11:56:48,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2295. [2022-11-20 11:56:48,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 1571 states have (on average 1.261616804583068) internal successors, (1982), 1625 states have internal predecessors, (1982), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 11:56:48,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 3202 transitions. [2022-11-20 11:56:48,630 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 3202 transitions. Word has length 285 [2022-11-20 11:56:48,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:48,630 INFO L495 AbstractCegarLoop]: Abstraction has 2295 states and 3202 transitions. [2022-11-20 11:56:48,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 11:56:48,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 3202 transitions. [2022-11-20 11:56:48,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-11-20 11:56:48,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:48,633 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:48,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (42)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:48,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:48,833 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:56:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1893585727, now seen corresponding path program 1 times [2022-11-20 11:56:48,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:48,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745476620] [2022-11-20 11:56:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:48,836 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:48,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:48,837 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:48,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (43)] Waiting until timeout for monitored process [2022-11-20 11:56:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:52,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:56:52,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:52,270 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-11-20 11:56:52,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:52,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:52,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745476620] [2022-11-20 11:56:52,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745476620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:52,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:52,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:56:52,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594467354] [2022-11-20 11:56:52,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:52,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:56:52,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:52,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:56:52,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:56:52,274 INFO L87 Difference]: Start difference. First operand 2295 states and 3202 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 11:56:53,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:53,252 INFO L93 Difference]: Finished difference Result 2297 states and 3203 transitions. [2022-11-20 11:56:53,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:56:53,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 285 [2022-11-20 11:56:53,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:53,261 INFO L225 Difference]: With dead ends: 2297 [2022-11-20 11:56:53,261 INFO L226 Difference]: Without dead ends: 2295 [2022-11-20 11:56:53,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:56:53,262 INFO L413 NwaCegarLoop]: 3135 mSDtfsCounter, 128 mSDsluCounter, 9290 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 12425 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:53,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 12425 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:56:53,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2022-11-20 11:56:53,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2295. [2022-11-20 11:56:53,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 1571 states have (on average 1.2609802673456396) internal successors, (1981), 1625 states have internal predecessors, (1981), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 11:56:53,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 3201 transitions. [2022-11-20 11:56:53,824 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 3201 transitions. Word has length 285 [2022-11-20 11:56:53,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:53,824 INFO L495 AbstractCegarLoop]: Abstraction has 2295 states and 3201 transitions. [2022-11-20 11:56:53,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (39), 3 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 11:56:53,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 3201 transitions. [2022-11-20 11:56:53,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-11-20 11:56:53,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:53,827 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:53,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (43)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:54,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:54,028 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:56:54,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:54,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1624326000, now seen corresponding path program 1 times [2022-11-20 11:56:54,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:54,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767722936] [2022-11-20 11:56:54,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:54,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:54,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:54,032 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:54,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (44)] Waiting until timeout for monitored process [2022-11-20 11:56:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:56,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 2257 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:56:56,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2022-11-20 11:56:59,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:59,279 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:59,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767722936] [2022-11-20 11:56:59,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767722936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:59,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:59,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:56:59,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779329297] [2022-11-20 11:56:59,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:59,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:56:59,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:59,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:56:59,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:56:59,282 INFO L87 Difference]: Start difference. First operand 2295 states and 3201 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (39), 1 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 11:57:08,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:08,070 INFO L93 Difference]: Finished difference Result 4215 states and 5883 transitions. [2022-11-20 11:57:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:57:08,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (39), 1 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) Word has length 322 [2022-11-20 11:57:08,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:08,078 INFO L225 Difference]: With dead ends: 4215 [2022-11-20 11:57:08,078 INFO L226 Difference]: Without dead ends: 2291 [2022-11-20 11:57:08,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:57:08,083 INFO L413 NwaCegarLoop]: 3097 mSDtfsCounter, 2926 mSDsluCounter, 8103 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2932 SdHoareTripleChecker+Valid, 11200 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:08,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2932 Valid, 11200 Invalid, 1188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1188 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-11-20 11:57:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2022-11-20 11:57:08,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2022-11-20 11:57:08,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 1568 states have (on average 1.260204081632653) internal successors, (1976), 1621 states have internal predecessors, (1976), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 11:57:08,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3196 transitions. [2022-11-20 11:57:08,669 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3196 transitions. Word has length 322 [2022-11-20 11:57:08,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:08,670 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 3196 transitions. [2022-11-20 11:57:08,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (39), 1 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 11:57:08,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3196 transitions. [2022-11-20 11:57:08,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-11-20 11:57:08,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:08,674 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:08,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (44)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:08,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:08,875 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_check_alloc_nonatomicErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:57:08,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:08,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1185871604, now seen corresponding path program 1 times [2022-11-20 11:57:08,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:08,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401436672] [2022-11-20 11:57:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:08,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:08,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:08,879 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:08,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (45)] Waiting until timeout for monitored process [2022-11-20 11:57:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:11,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 2257 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:11,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:14,023 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2022-11-20 11:57:14,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:14,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:14,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401436672] [2022-11-20 11:57:14,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401436672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:14,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:14,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:57:14,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011872683] [2022-11-20 11:57:14,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:14,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:57:14,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:14,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:57:14,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:57:14,027 INFO L87 Difference]: Start difference. First operand 2291 states and 3196 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 11:57:14,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:14,662 INFO L93 Difference]: Finished difference Result 2291 states and 3196 transitions. [2022-11-20 11:57:14,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:57:14,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) Word has length 323 [2022-11-20 11:57:14,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:14,669 INFO L225 Difference]: With dead ends: 2291 [2022-11-20 11:57:14,669 INFO L226 Difference]: Without dead ends: 2289 [2022-11-20 11:57:14,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:57:14,671 INFO L413 NwaCegarLoop]: 3095 mSDtfsCounter, 2918 mSDsluCounter, 3092 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2923 SdHoareTripleChecker+Valid, 6187 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:14,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2923 Valid, 6187 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:57:14,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2289 states. [2022-11-20 11:57:15,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2289 to 2289. [2022-11-20 11:57:15,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 1567 states have (on average 1.259731971920868) internal successors, (1974), 1619 states have internal predecessors, (1974), 598 states have call successors, (598), 120 states have call predecessors, (598), 122 states have return successors, (622), 583 states have call predecessors, (622), 598 states have call successors, (622) [2022-11-20 11:57:15,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3194 transitions. [2022-11-20 11:57:15,392 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3194 transitions. Word has length 323 [2022-11-20 11:57:15,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:15,393 INFO L495 AbstractCegarLoop]: Abstraction has 2289 states and 3194 transitions. [2022-11-20 11:57:15,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 11:57:15,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3194 transitions. [2022-11-20 11:57:15,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-11-20 11:57:15,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:15,399 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:15,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (45)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:15,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:15,614 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:57:15,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1008003634, now seen corresponding path program 1 times [2022-11-20 11:57:15,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:15,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110919753] [2022-11-20 11:57:15,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:15,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:15,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:15,620 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:15,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (46)] Waiting until timeout for monitored process [2022-11-20 11:57:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:20,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 3315 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-20 11:57:20,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:20,775 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2022-11-20 11:57:20,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:20,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:20,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110919753] [2022-11-20 11:57:20,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110919753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:20,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:20,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:57:20,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034672803] [2022-11-20 11:57:20,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:20,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:57:20,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:20,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:57:20,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:57:20,778 INFO L87 Difference]: Start difference. First operand 2289 states and 3194 transitions. Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (45), 5 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-20 11:57:23,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:57:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:24,080 INFO L93 Difference]: Finished difference Result 4390 states and 6199 transitions. [2022-11-20 11:57:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 11:57:24,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (45), 5 states have call predecessors, (45), 3 states have call successors, (45) Word has length 364 [2022-11-20 11:57:24,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:24,091 INFO L225 Difference]: With dead ends: 4390 [2022-11-20 11:57:24,092 INFO L226 Difference]: Without dead ends: 2307 [2022-11-20 11:57:24,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:57:24,101 INFO L413 NwaCegarLoop]: 3095 mSDtfsCounter, 4 mSDsluCounter, 18541 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 21636 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:24,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 21636 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-20 11:57:24,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2022-11-20 11:57:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2298. [2022-11-20 11:57:24,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 1573 states have (on average 1.2587412587412588) internal successors, (1980), 1625 states have internal predecessors, (1980), 599 states have call successors, (599), 120 states have call predecessors, (599), 124 states have return successors, (626), 586 states have call predecessors, (626), 599 states have call successors, (626) [2022-11-20 11:57:24,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 3205 transitions. [2022-11-20 11:57:24,685 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 3205 transitions. Word has length 364 [2022-11-20 11:57:24,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:24,686 INFO L495 AbstractCegarLoop]: Abstraction has 2298 states and 3205 transitions. [2022-11-20 11:57:24,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (45), 5 states have call predecessors, (45), 3 states have call successors, (45) [2022-11-20 11:57:24,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 3205 transitions. [2022-11-20 11:57:24,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-11-20 11:57:24,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:24,696 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:24,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (46)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:24,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:24,914 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:57:24,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:24,915 INFO L85 PathProgramCache]: Analyzing trace with hash 379869016, now seen corresponding path program 1 times [2022-11-20 11:57:24,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:24,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592906405] [2022-11-20 11:57:24,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:24,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:24,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:24,922 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:24,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (47)] Waiting until timeout for monitored process [2022-11-20 11:57:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:29,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 3255 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 11:57:29,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2022-11-20 11:57:29,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:29,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:29,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592906405] [2022-11-20 11:57:29,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592906405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:29,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:29,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:57:29,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660906677] [2022-11-20 11:57:29,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:29,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:57:29,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:29,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:57:29,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:57:29,625 INFO L87 Difference]: Start difference. First operand 2298 states and 3205 transitions. Second operand has 6 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-20 11:57:32,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:57:33,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:33,503 INFO L93 Difference]: Finished difference Result 4473 states and 6322 transitions. [2022-11-20 11:57:33,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:57:33,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 389 [2022-11-20 11:57:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:33,513 INFO L225 Difference]: With dead ends: 4473 [2022-11-20 11:57:33,514 INFO L226 Difference]: Without dead ends: 2381 [2022-11-20 11:57:33,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:57:33,523 INFO L413 NwaCegarLoop]: 3089 mSDtfsCounter, 92 mSDsluCounter, 12272 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 15361 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:33,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 15361 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-11-20 11:57:33,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-11-20 11:57:34,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2298. [2022-11-20 11:57:34,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 1573 states have (on average 1.2581055308328035) internal successors, (1979), 1625 states have internal predecessors, (1979), 599 states have call successors, (599), 120 states have call predecessors, (599), 124 states have return successors, (626), 586 states have call predecessors, (626), 599 states have call successors, (626) [2022-11-20 11:57:34,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 3204 transitions. [2022-11-20 11:57:34,122 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 3204 transitions. Word has length 389 [2022-11-20 11:57:34,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:34,123 INFO L495 AbstractCegarLoop]: Abstraction has 2298 states and 3204 transitions. [2022-11-20 11:57:34,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 3 states have call successors, (55), 2 states have call predecessors, (55), 3 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-20 11:57:34,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 3204 transitions. [2022-11-20 11:57:34,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-11-20 11:57:34,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:34,128 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:34,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (47)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:34,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:34,329 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:57:34,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:34,329 INFO L85 PathProgramCache]: Analyzing trace with hash -698056636, now seen corresponding path program 1 times [2022-11-20 11:57:34,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:34,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798930489] [2022-11-20 11:57:34,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:34,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:34,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:34,333 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:34,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (48)] Waiting until timeout for monitored process [2022-11-20 11:57:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:38,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 3263 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:57:38,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2022-11-20 11:57:38,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:38,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:38,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798930489] [2022-11-20 11:57:38,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798930489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:38,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:38,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:57:38,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099471741] [2022-11-20 11:57:38,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:38,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:38,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:38,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:38,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:38,947 INFO L87 Difference]: Start difference. First operand 2298 states and 3204 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-20 11:57:39,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:39,796 INFO L93 Difference]: Finished difference Result 4391 states and 6199 transitions. [2022-11-20 11:57:39,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:39,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 378 [2022-11-20 11:57:39,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:39,807 INFO L225 Difference]: With dead ends: 4391 [2022-11-20 11:57:39,808 INFO L226 Difference]: Without dead ends: 2299 [2022-11-20 11:57:39,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:39,816 INFO L413 NwaCegarLoop]: 3096 mSDtfsCounter, 0 mSDsluCounter, 3092 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6188 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:39,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6188 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:57:39,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2299 states. [2022-11-20 11:57:40,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2299 to 2299. [2022-11-20 11:57:40,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1574 states have (on average 1.2579415501905973) internal successors, (1980), 1626 states have internal predecessors, (1980), 599 states have call successors, (599), 120 states have call predecessors, (599), 124 states have return successors, (626), 586 states have call predecessors, (626), 599 states have call successors, (626) [2022-11-20 11:57:40,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3205 transitions. [2022-11-20 11:57:40,415 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3205 transitions. Word has length 378 [2022-11-20 11:57:40,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:40,415 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 3205 transitions. [2022-11-20 11:57:40,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-20 11:57:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3205 transitions. [2022-11-20 11:57:40,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-11-20 11:57:40,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:40,422 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:40,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (48)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:40,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:40,623 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:57:40,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash 2008562758, now seen corresponding path program 1 times [2022-11-20 11:57:40,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:40,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616611374] [2022-11-20 11:57:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:40,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:40,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:40,628 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:40,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (49)] Waiting until timeout for monitored process [2022-11-20 11:57:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:45,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 3266 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:57:45,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 795 trivial. 0 not checked. [2022-11-20 11:57:48,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:48,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:48,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616611374] [2022-11-20 11:57:48,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616611374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:48,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:48,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:57:48,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37051361] [2022-11-20 11:57:48,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:48,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:48,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:48,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:48,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:57:48,480 INFO L87 Difference]: Start difference. First operand 2299 states and 3205 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-20 11:57:49,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:49,268 INFO L93 Difference]: Finished difference Result 2407 states and 3348 transitions. [2022-11-20 11:57:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:57:49,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 378 [2022-11-20 11:57:49,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:49,274 INFO L225 Difference]: With dead ends: 2407 [2022-11-20 11:57:49,274 INFO L226 Difference]: Without dead ends: 2405 [2022-11-20 11:57:49,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 374 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 11:57:49,278 INFO L413 NwaCegarLoop]: 3149 mSDtfsCounter, 2776 mSDsluCounter, 6493 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2777 SdHoareTripleChecker+Valid, 9642 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:49,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2777 Valid, 9642 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:57:49,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2022-11-20 11:57:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2405. [2022-11-20 11:57:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2405 states, 1651 states have (on average 1.2604482132041188) internal successors, (2081), 1703 states have internal predecessors, (2081), 619 states have call successors, (619), 130 states have call predecessors, (619), 134 states have return successors, (646), 606 states have call predecessors, (646), 619 states have call successors, (646) [2022-11-20 11:57:49,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2405 states to 2405 states and 3346 transitions. [2022-11-20 11:57:49,833 INFO L78 Accepts]: Start accepts. Automaton has 2405 states and 3346 transitions. Word has length 378 [2022-11-20 11:57:49,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:49,833 INFO L495 AbstractCegarLoop]: Abstraction has 2405 states and 3346 transitions. [2022-11-20 11:57:49,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 1 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2022-11-20 11:57:49,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2405 states and 3346 transitions. [2022-11-20 11:57:49,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-11-20 11:57:49,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:49,839 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:49,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (49)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:50,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:50,044 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-20 11:57:50,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:50,045 INFO L85 PathProgramCache]: Analyzing trace with hash 500294160, now seen corresponding path program 1 times [2022-11-20 11:57:50,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:50,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050714304] [2022-11-20 11:57:50,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:50,047 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:50,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:50,048 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:50,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (50)] Waiting until timeout for monitored process [2022-11-20 11:57:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:55,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 3510 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:55,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:55,615 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2022-11-20 11:57:55,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:55,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:55,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050714304] [2022-11-20 11:57:55,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050714304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:55,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:55,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:57:55,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368671916] [2022-11-20 11:57:55,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:55,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:55,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:55,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:55,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:57:55,618 INFO L87 Difference]: Start difference. First operand 2405 states and 3346 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (51), 2 states have call predecessors, (51), 1 states have call successors, (51) [2022-11-20 11:57:56,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:56,563 INFO L93 Difference]: Finished difference Result 2405 states and 3346 transitions. [2022-11-20 11:57:56,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:57:56,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (51), 2 states have call predecessors, (51), 1 states have call successors, (51) Word has length 403 [2022-11-20 11:57:56,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:56,565 INFO L225 Difference]: With dead ends: 2405 [2022-11-20 11:57:56,565 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 11:57:56,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 399 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 11:57:56,571 INFO L413 NwaCegarLoop]: 3202 mSDtfsCounter, 192 mSDsluCounter, 9433 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 12635 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:56,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 12635 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:57:56,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 11:57:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 11:57:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 11:57:56,574 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 403 [2022-11-20 11:57:56,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:56,574 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:57:56,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 4 states have internal predecessors, (185), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (51), 2 states have call predecessors, (51), 1 states have call successors, (51) [2022-11-20 11:57:56,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:57:56,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 11:57:56,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (32 of 33 remaining) [2022-11-20 11:57:56,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (31 of 33 remaining) [2022-11-20 11:57:56,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (30 of 33 remaining) [2022-11-20 11:57:56,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (29 of 33 remaining) [2022-11-20 11:57:56,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (28 of 33 remaining) [2022-11-20 11:57:56,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 33 remaining) [2022-11-20 11:57:56,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 33 remaining) [2022-11-20 11:57:56,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_nonatomicErr1ASSERT_VIOLATIONERROR_FUNCTION (25 of 33 remaining) [2022-11-20 11:57:56,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 33 remaining) [2022-11-20 11:57:56,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 33 remaining) [2022-11-20 11:57:56,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION (22 of 33 remaining) [2022-11-20 11:57:56,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 33 remaining) [2022-11-20 11:57:56,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION (20 of 33 remaining) [2022-11-20 11:57:56,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 33 remaining) [2022-11-20 11:57:56,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 33 remaining) [2022-11-20 11:57:56,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (17 of 33 remaining) [2022-11-20 11:57:56,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 33 remaining) [2022-11-20 11:57:56,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 33 remaining) [2022-11-20 11:57:56,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 33 remaining) [2022-11-20 11:57:56,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 33 remaining) [2022-11-20 11:57:56,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 33 remaining) [2022-11-20 11:57:56,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 33 remaining) [2022-11-20 11:57:56,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 33 remaining) [2022-11-20 11:57:56,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 33 remaining) [2022-11-20 11:57:56,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 33 remaining) [2022-11-20 11:57:56,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION (7 of 33 remaining) [2022-11-20 11:57:56,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION (6 of 33 remaining) [2022-11-20 11:57:56,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 33 remaining) [2022-11-20 11:57:56,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 33 remaining) [2022-11-20 11:57:56,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 33 remaining) [2022-11-20 11:57:56,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 33 remaining) [2022-11-20 11:57:56,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 33 remaining) [2022-11-20 11:57:56,585 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 33 remaining) [2022-11-20 11:57:56,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/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 (50)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:56,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae31cb4e-bd8d-4856-80f3-0a4b973b3e3b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:56,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.