./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.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_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/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_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/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_e6f5636d-87a3-4b4a-bd61-a408f57f3501/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 bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 --- 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 11:23:30,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:23:30,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:23:30,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:23:30,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:23:31,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:23:31,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:23:31,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:23:31,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:23:31,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:23:31,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:23:31,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:23:31,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:23:31,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:23:31,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:23:31,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:23:31,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:23:31,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:23:31,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:23:31,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:23:31,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:23:31,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:23:31,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:23:31,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:23:31,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:23:31,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:23:31,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:23:31,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:23:31,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:23:31,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:23:31,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:23:31,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:23:31,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:23:31,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:23:31,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:23:31,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:23:31,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:23:31,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:23:31,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:23:31,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:23:31,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:23:31,082 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:23:31,131 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:23:31,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:23:31,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:23:31,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:23:31,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:23:31,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:23:31,135 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:23:31,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:23:31,135 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:23:31,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:23:31,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:23:31,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:23:31,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:23:31,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:23:31,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:23:31,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:23:31,138 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:23:31,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:23:31,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:23:31,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:23:31,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:23:31,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:31,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:23:31,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:23:31,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:23:31,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:23:31,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:23:31,141 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:23:31,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:23:31,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:23:31,142 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_e6f5636d-87a3-4b4a-bd61-a408f57f3501/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 [2022-11-20 11:23:31,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:23:31,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:23:31,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:23:31,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:23:31,567 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:23:31,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 11:23:34,641 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:23:35,519 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:23:35,520 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 11:23:35,585 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/data/6030672a7/4a7ce5b0296a45d0a48be66d21b08c4e/FLAG34e7cab9a [2022-11-20 11:23:35,601 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/data/6030672a7/4a7ce5b0296a45d0a48be66d21b08c4e [2022-11-20 11:23:35,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:23:35,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:23:35,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:23:35,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:23:35,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:23:35,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:35" (1/1) ... [2022-11-20 11:23:35,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc9aad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:35, skipping insertion in model container [2022-11-20 11:23:35,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:35" (1/1) ... [2022-11-20 11:23:35,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:23:35,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:23:36,601 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 11:23:36,611 INFO L158 Benchmark]: Toolchain (without parser) took 1004.32ms. Allocated memory is still 197.1MB. Free memory was 157.0MB in the beginning and 135.3MB in the end (delta: 21.7MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. [2022-11-20 11:23:36,612 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 197.1MB. Free memory is still 171.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:23:36,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1002.06ms. Allocated memory is still 197.1MB. Free memory was 157.0MB in the beginning and 135.3MB in the end (delta: 21.7MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. [2022-11-20 11:23:36,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 197.1MB. Free memory is still 171.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1002.06ms. Allocated memory is still 197.1MB. Free memory was 157.0MB in the beginning and 135.3MB in the end (delta: 21.7MB). Peak memory consumption was 85.5MB. 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_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/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_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/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_e6f5636d-87a3-4b4a-bd61-a408f57f3501/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 bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 --- 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 11:23:38,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:23:38,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:23:39,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:23:39,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:23:39,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:23:39,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:23:39,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:23:39,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:23:39,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:23:39,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:23:39,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:23:39,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:23:39,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:23:39,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:23:39,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:23:39,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:23:39,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:23:39,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:23:39,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:23:39,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:23:39,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:23:39,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:23:39,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:23:39,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:23:39,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:23:39,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:23:39,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:23:39,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:23:39,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:23:39,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:23:39,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:23:39,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:23:39,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:23:39,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:23:39,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:23:39,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:23:39,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:23:39,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:23:39,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:23:39,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:23:39,104 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:23:39,139 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:23:39,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:23:39,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:23:39,141 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:23:39,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:23:39,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:23:39,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:23:39,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:23:39,144 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:23:39,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:23:39,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:23:39,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:23:39,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:23:39,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:23:39,147 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:23:39,147 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:23:39,147 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:23:39,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:23:39,148 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:23:39,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:23:39,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:23:39,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:23:39,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:23:39,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:39,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:23:39,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:23:39,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:23:39,151 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:23:39,151 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:23:39,152 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:23:39,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:23:39,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:23:39,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:23:39,153 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_e6f5636d-87a3-4b4a-bd61-a408f57f3501/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bce5aa2319ae110f8a0b01ff2a22780545859bbd4eceb3e6d7a0268461602692 [2022-11-20 11:23:39,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:23:39,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:23:39,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:23:39,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:23:39,647 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:23:39,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 11:23:43,154 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:23:43,980 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:23:43,981 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 11:23:44,061 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/data/87db411cc/b76f7ceb63a64ef1a9e6c7175c44dc75/FLAGd2ab03cc0 [2022-11-20 11:23:44,085 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/data/87db411cc/b76f7ceb63a64ef1a9e6c7175c44dc75 [2022-11-20 11:23:44,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:23:44,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:23:44,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:23:44,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:23:44,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:23:44,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:44" (1/1) ... [2022-11-20 11:23:44,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3afcf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:44, skipping insertion in model container [2022-11-20 11:23:44,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:44" (1/1) ... [2022-11-20 11:23:44,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:23:44,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:23:48,916 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2022-11-20 11:23:48,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2022-11-20 11:23:48,921 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2022-11-20 11:23:48,922 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2022-11-20 11:23:48,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:49,108 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:23:49,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:23:49,951 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2022-11-20 11:23:49,951 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2022-11-20 11:23:49,952 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2022-11-20 11:23:49,953 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2022-11-20 11:23:49,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:50,104 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:23:50,958 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588044,588057] [2022-11-20 11:23:50,959 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588213,588226] [2022-11-20 11:23:50,959 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588380,588393] [2022-11-20 11:23:50,960 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588548,588561] [2022-11-20 11:23:50,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:51,259 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:23:51,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51 WrapperNode [2022-11-20 11:23:51,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:23:51,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:23:51,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:23:51,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:23:51,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:51,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:51,741 INFO L138 Inliner]: procedures = 551, calls = 4273, calls flagged for inlining = 263, calls inlined = 250, statements flattened = 8226 [2022-11-20 11:23:51,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:23:51,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:23:51,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:23:51,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:23:51,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:51,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:51,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:51,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:52,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:52,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:52,262 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:52,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:52,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:23:52,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:23:52,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:23:52,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:23:52,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (1/1) ... [2022-11-20 11:23:52,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:52,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:23:52,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:23:52,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:23:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-11-20 11:23:52,516 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-11-20 11:23:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:23:52,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:23:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-11-20 11:23:52,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-11-20 11:23:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_unregister_video [2022-11-20 11:23:52,517 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_unregister_video [2022-11-20 11:23:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-11-20 11:23:52,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-11-20 11:23:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:23:52,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:23:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_input [2022-11-20 11:23:52,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_input [2022-11-20 11:23:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-20 11:23:52,519 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-20 11:23:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-11-20 11:23:52,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-11-20 11:23:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 11:23:52,521 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 11:23:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2022-11-20 11:23:52,522 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2022-11-20 11:23:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_77 [2022-11-20 11:23:52,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_77 [2022-11-20 11:23:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvaudio [2022-11-20 11:23:52,522 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvaudio [2022-11-20 11:23:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~C_INT [2022-11-20 11:23:52,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~C_INT [2022-11-20 11:23:52,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:23:52,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:23:52,523 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_vid_ctrl [2022-11-20 11:23:52,524 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_vid_ctrl [2022-11-20 11:23:52,524 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2022-11-20 11:23:52,524 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2022-11-20 11:23:52,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_cx8800_dev [2022-11-20 11:23:52,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_cx8800_dev [2022-11-20 11:23:52,524 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 11:23:52,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 11:23:52,525 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-11-20 11:23:52,525 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-11-20 11:23:52,525 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2022-11-20 11:23:52,526 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2022-11-20 11:23:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-11-20 11:23:52,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-11-20 11:23:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_newstation [2022-11-20 11:23:52,527 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_newstation [2022-11-20 11:23:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-11-20 11:23:52,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-11-20 11:23:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_vdev_init [2022-11-20 11:23:52,528 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_vdev_init [2022-11-20 11:23:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure video_mmap [2022-11-20 11:23:52,529 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mmap [2022-11-20 11:23:52,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 11:23:52,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 11:23:52,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:23:52,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:23:52,529 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 11:23:52,529 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 11:23:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-20 11:23:52,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-20 11:23:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-20 11:23:52,531 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-20 11:23:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:23:52,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:23:52,532 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_poll [2022-11-20 11:23:52,532 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_poll [2022-11-20 11:23:52,532 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2022-11-20 11:23:52,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2022-11-20 11:23:52,533 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-11-20 11:23:52,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-11-20 11:23:52,534 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2022-11-20 11:23:52,534 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2022-11-20 11:23:52,534 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-20 11:23:52,534 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-20 11:23:52,535 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-11-20 11:23:52,535 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-11-20 11:23:52,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:23:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_stereo [2022-11-20 11:23:52,536 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_stereo [2022-11-20 11:23:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:23:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:23:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_vbi_fmt [2022-11-20 11:23:52,536 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_vbi_fmt [2022-11-20 11:23:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:23:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:23:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 11:23:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 11:23:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2022-11-20 11:23:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-11-20 11:23:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-11-20 11:23:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-20 11:23:52,538 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-20 11:23:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:23:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:23:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_restart_vbi_queue [2022-11-20 11:23:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_restart_vbi_queue [2022-11-20 11:23:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_finidev [2022-11-20 11:23:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_finidev [2022-11-20 11:23:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 11:23:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 11:23:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-20 11:23:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-20 11:23:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_querycap [2022-11-20 11:23:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_querycap [2022-11-20 11:23:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 11:23:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 11:23:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2022-11-20 11:23:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2022-11-20 11:23:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 11:23:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 11:23:52,549 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_aud_ctrl [2022-11-20 11:23:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_aud_ctrl [2022-11-20 11:23:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-11-20 11:23:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-11-20 11:23:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 11:23:52,555 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 11:23:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2022-11-20 11:23:52,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2022-11-20 11:23:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 11:23:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 11:23:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2022-11-20 11:23:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2022-11-20 11:23:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-20 11:23:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-20 11:23:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 11:23:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 11:23:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2022-11-20 11:23:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2022-11-20 11:23:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:23:52,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:23:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:23:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 11:23:52,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 11:23:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 11:23:52,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 11:23:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 11:23:52,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 11:23:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-20 11:23:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-20 11:23:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-11-20 11:23:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-11-20 11:23:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:23:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:23:52,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:23:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:23:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure video_release [2022-11-20 11:23:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure video_release [2022-11-20 11:23:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:23:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:23:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure restart_video_queue [2022-11-20 11:23:52,560 INFO L138 BoogieDeclarations]: Found implementation of procedure restart_video_queue [2022-11-20 11:23:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-20 11:23:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-20 11:23:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2022-11-20 11:23:52,561 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2022-11-20 11:23:52,561 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 11:23:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 11:23:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_s_ctrl [2022-11-20 11:23:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_s_ctrl [2022-11-20 11:23:52,562 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 11:23:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 11:23:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-20 11:23:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-20 11:23:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_enum_input [2022-11-20 11:23:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_enum_input [2022-11-20 11:23:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2022-11-20 11:23:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2022-11-20 11:23:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure video_set_drvdata [2022-11-20 11:23:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure video_set_drvdata [2022-11-20 11:23:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_tuner [2022-11-20 11:23:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_tuner [2022-11-20 11:23:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure res_check [2022-11-20 11:23:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure res_check [2022-11-20 11:23:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2022-11-20 11:23:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2022-11-20 11:23:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_buffer [2022-11-20 11:23:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_buffer [2022-11-20 11:23:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-20 11:23:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-20 11:23:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 11:23:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 11:23:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-20 11:23:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-20 11:23:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:23:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:23:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2022-11-20 11:23:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2022-11-20 11:23:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 11:23:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 11:23:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:23:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-20 11:23:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-20 11:23:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:23:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:23:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:23:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:23:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_std [2022-11-20 11:23:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_std [2022-11-20 11:23:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:23:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:23:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-11-20 11:23:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-11-20 11:23:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2022-11-20 11:23:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2022-11-20 11:23:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2022-11-20 11:23:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2022-11-20 11:23:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-20 11:23:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-20 11:23:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 11:23:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 11:23:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_input [2022-11-20 11:23:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_input [2022-11-20 11:23:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 11:23:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 11:23:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure res_get [2022-11-20 11:23:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure res_get [2022-11-20 11:23:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-20 11:23:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-20 11:23:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_resume [2022-11-20 11:23:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_resume [2022-11-20 11:23:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-20 11:23:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-20 11:23:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2022-11-20 11:23:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2022-11-20 11:23:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 11:23:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 11:23:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-20 11:23:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-20 11:23:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:23:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 11:23:52,578 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 11:23:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:23:52,578 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2022-11-20 11:23:52,578 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2022-11-20 11:23:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_find [2022-11-20 11:23:52,579 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_find [2022-11-20 11:23:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:23:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:23:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-11-20 11:23:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-11-20 11:23:52,581 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_dma [2022-11-20 11:23:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_dma [2022-11-20 11:23:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:23:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:23:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:23:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-11-20 11:23:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-11-20 11:23:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 11:23:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 11:23:52,583 INFO L130 BoogieDeclarations]: Found specification of procedure get_queue [2022-11-20 11:23:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queue [2022-11-20 11:23:52,583 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 11:23:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 11:23:52,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:23:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:23:52,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 11:23:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 11:23:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:23:52,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:23:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-20 11:23:52,584 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-20 11:23:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 11:23:52,584 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 11:23:52,584 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-11-20 11:23:52,584 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-11-20 11:23:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-20 11:23:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-20 11:23:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_78 [2022-11-20 11:23:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_78 [2022-11-20 11:23:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:23:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:23:52,585 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:23:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:23:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:23:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:23:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:23:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:23:52,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:23:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2022-11-20 11:23:52,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2022-11-20 11:23:52,586 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-20 11:23:52,587 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-20 11:23:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-20 11:23:52,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-20 11:23:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_tuner [2022-11-20 11:23:52,587 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_tuner [2022-11-20 11:23:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-11-20 11:23:52,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-11-20 11:23:52,587 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 11:23:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 11:23:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_start_vbi_dma [2022-11-20 11:23:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_start_vbi_dma [2022-11-20 11:23:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_ir_stop [2022-11-20 11:23:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_ir_stop [2022-11-20 11:23:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2022-11-20 11:23:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2022-11-20 11:23:52,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:23:52,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:23:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 11:23:52,589 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 11:23:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-20 11:23:52,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-20 11:23:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2022-11-20 11:23:52,589 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2022-11-20 11:23:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 11:23:52,590 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 11:23:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2022-11-20 11:23:52,590 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2022-11-20 11:23:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure get_resource [2022-11-20 11:23:52,590 INFO L138 BoogieDeclarations]: Found implementation of procedure get_resource [2022-11-20 11:23:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 11:23:52,590 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 11:23:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_initdev [2022-11-20 11:23:52,591 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_initdev [2022-11-20 11:23:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_cx8800_dev [2022-11-20 11:23:52,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_cx8800_dev [2022-11-20 11:23:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 11:23:52,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 11:23:54,258 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:23:54,262 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:23:55,116 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:25:44,024 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 11:25:44,263 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:25:44,300 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:25:44,302 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 11:25:44,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:25:44 BoogieIcfgContainer [2022-11-20 11:25:44,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:25:44,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:25:44,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:25:44,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:25:44,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:23:44" (1/3) ... [2022-11-20 11:25:44,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232bb5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:25:44, skipping insertion in model container [2022-11-20 11:25:44,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:51" (2/3) ... [2022-11-20 11:25:44,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232bb5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:25:44, skipping insertion in model container [2022-11-20 11:25:44,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:25:44" (3/3) ... [2022-11-20 11:25:44,321 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 11:25:44,342 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:25:44,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 11:25:44,472 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:25:44,479 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;@8fcb3f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:25:44,479 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 11:25:44,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 2858 states, 1945 states have (on average 1.262210796915167) internal successors, (2455), 1961 states have internal predecessors, (2455), 764 states have call successors, (764), 147 states have call predecessors, (764), 146 states have return successors, (757), 756 states have call predecessors, (757), 757 states have call successors, (757) [2022-11-20 11:25:44,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2022-11-20 11:25:44,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:44,587 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:44,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:25:44,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:44,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1712911003, now seen corresponding path program 1 times [2022-11-20 11:25:44,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:44,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133872455] [2022-11-20 11:25:44,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:44,636 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 11:25:44,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:44,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:25:44,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:25:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:55,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 6503 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:25:55,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2022-11-20 11:25:56,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:25:56,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:56,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133872455] [2022-11-20 11:25:56,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133872455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:56,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:56,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:25:56,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411874927] [2022-11-20 11:25:56,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:56,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:25:56,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:56,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:25:56,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:56,375 INFO L87 Difference]: Start difference. First operand has 2858 states, 1945 states have (on average 1.262210796915167) internal successors, (2455), 1961 states have internal predecessors, (2455), 764 states have call successors, (764), 147 states have call predecessors, (764), 146 states have return successors, (757), 756 states have call predecessors, (757), 757 states have call successors, (757) Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-20 11:26:00,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:26:00,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:00,952 INFO L93 Difference]: Finished difference Result 8249 states and 11651 transitions. [2022-11-20 11:26:00,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:26:00,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 571 [2022-11-20 11:26:00,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:01,038 INFO L225 Difference]: With dead ends: 8249 [2022-11-20 11:26:01,039 INFO L226 Difference]: Without dead ends: 5475 [2022-11-20 11:26:01,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 569 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 11:26:01,076 INFO L413 NwaCegarLoop]: 4637 mSDtfsCounter, 3671 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3671 SdHoareTripleChecker+Valid, 8528 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:01,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3671 Valid, 8528 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-20 11:26:01,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2022-11-20 11:26:01,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 5471. [2022-11-20 11:26:01,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 3751 states have (on average 1.257797920554519) internal successors, (4718), 3782 states have internal predecessors, (4718), 1429 states have call successors, (1429), 289 states have call predecessors, (1429), 288 states have return successors, (1425), 1423 states have call predecessors, (1425), 1425 states have call successors, (1425) [2022-11-20 11:26:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 7572 transitions. [2022-11-20 11:26:01,619 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 7572 transitions. Word has length 571 [2022-11-20 11:26:01,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:01,624 INFO L495 AbstractCegarLoop]: Abstraction has 5471 states and 7572 transitions. [2022-11-20 11:26:01,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-20 11:26:01,627 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 7572 transitions. [2022-11-20 11:26:01,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2022-11-20 11:26:01,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:01,655 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:26:01,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:01,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:01,871 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:26:01,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:01,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1583278163, now seen corresponding path program 1 times [2022-11-20 11:26:01,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:26:01,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635728027] [2022-11-20 11:26:01,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:01,886 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 11:26:01,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:26:01,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:01,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:13,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 6624 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:26:13,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:26:13,944 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2022-11-20 11:26:13,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:26:13,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:26:13,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635728027] [2022-11-20 11:26:13,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635728027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:26:13,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:26:13,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:26:13,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597269317] [2022-11-20 11:26:13,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:26:13,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:26:13,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:26:13,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:26:13,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:26:13,953 INFO L87 Difference]: Start difference. First operand 5471 states and 7572 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-20 11:26:17,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:26:18,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:18,913 INFO L93 Difference]: Finished difference Result 13192 states and 18241 transitions. [2022-11-20 11:26:18,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:26:18,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 585 [2022-11-20 11:26:18,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:18,986 INFO L225 Difference]: With dead ends: 13192 [2022-11-20 11:26:18,987 INFO L226 Difference]: Without dead ends: 7824 [2022-11-20 11:26:19,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 583 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 11:26:19,189 INFO L413 NwaCegarLoop]: 4707 mSDtfsCounter, 3481 mSDsluCounter, 3868 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3481 SdHoareTripleChecker+Valid, 8575 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:19,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3481 Valid, 8575 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-20 11:26:19,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2022-11-20 11:26:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 7799. [2022-11-20 11:26:19,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7799 states, 5387 states have (on average 1.258956747726007) internal successors, (6782), 5431 states have internal predecessors, (6782), 1989 states have call successors, (1989), 422 states have call predecessors, (1989), 420 states have return successors, (1985), 1977 states have call predecessors, (1985), 1985 states have call successors, (1985) [2022-11-20 11:26:19,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7799 states to 7799 states and 10756 transitions. [2022-11-20 11:26:19,767 INFO L78 Accepts]: Start accepts. Automaton has 7799 states and 10756 transitions. Word has length 585 [2022-11-20 11:26:19,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:19,773 INFO L495 AbstractCegarLoop]: Abstraction has 7799 states and 10756 transitions. [2022-11-20 11:26:19,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-20 11:26:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 7799 states and 10756 transitions. [2022-11-20 11:26:19,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2022-11-20 11:26:19,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:19,799 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 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] [2022-11-20 11:26:19,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:20,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:20,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:26:20,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:20,028 INFO L85 PathProgramCache]: Analyzing trace with hash 127990651, now seen corresponding path program 1 times [2022-11-20 11:26:20,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:26:20,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211362315] [2022-11-20 11:26:20,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:20,045 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 11:26:20,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:26:20,046 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:20,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:32,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 6591 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:26:32,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:26:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10737 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10590 trivial. 0 not checked. [2022-11-20 11:26:32,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:26:32,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:26:32,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211362315] [2022-11-20 11:26:32,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211362315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:26:32,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:26:32,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:26:32,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557084402] [2022-11-20 11:26:32,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:26:32,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:26:32,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:26:32,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:26:32,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:26:32,351 INFO L87 Difference]: Start difference. First operand 7799 states and 10756 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-20 11:26:35,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:26:36,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:36,776 INFO L93 Difference]: Finished difference Result 22985 states and 31719 transitions. [2022-11-20 11:26:36,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:26:36,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 595 [2022-11-20 11:26:36,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:36,906 INFO L225 Difference]: With dead ends: 22985 [2022-11-20 11:26:36,906 INFO L226 Difference]: Without dead ends: 15289 [2022-11-20 11:26:36,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 593 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 11:26:36,948 INFO L413 NwaCegarLoop]: 4627 mSDtfsCounter, 3671 mSDsluCounter, 3931 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3671 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:36,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3671 Valid, 8558 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-20 11:26:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15289 states. [2022-11-20 11:26:37,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15289 to 15260. [2022-11-20 11:26:37,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15260 states, 10589 states have (on average 1.2616866559637359) internal successors, (13360), 10680 states have internal predecessors, (13360), 3836 states have call successors, (3836), 836 states have call predecessors, (3836), 832 states have return successors, (3876), 3807 states have call predecessors, (3876), 3832 states have call successors, (3876) [2022-11-20 11:26:38,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15260 states to 15260 states and 21072 transitions. [2022-11-20 11:26:38,108 INFO L78 Accepts]: Start accepts. Automaton has 15260 states and 21072 transitions. Word has length 595 [2022-11-20 11:26:38,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:38,111 INFO L495 AbstractCegarLoop]: Abstraction has 15260 states and 21072 transitions. [2022-11-20 11:26:38,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2022-11-20 11:26:38,113 INFO L276 IsEmpty]: Start isEmpty. Operand 15260 states and 21072 transitions. [2022-11-20 11:26:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-11-20 11:26:38,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:38,125 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 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] [2022-11-20 11:26:38,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:38,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:38,351 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:26:38,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:38,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1624289831, now seen corresponding path program 1 times [2022-11-20 11:26:38,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:26:38,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905233156] [2022-11-20 11:26:38,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:38,359 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 11:26:38,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:26:38,361 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:38,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:26:49,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 6609 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:26:49,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:26:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 10743 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10596 trivial. 0 not checked. [2022-11-20 11:26:49,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:26:49,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:26:49,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905233156] [2022-11-20 11:26:49,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905233156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:26:49,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:26:49,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:26:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699186863] [2022-11-20 11:26:49,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:26:49,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:26:49,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:26:49,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:26:49,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:26:49,570 INFO L87 Difference]: Start difference. First operand 15260 states and 21072 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-20 11:26:53,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.58s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:26:54,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:26:54,883 INFO L93 Difference]: Finished difference Result 44915 states and 62150 transitions. [2022-11-20 11:26:54,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:26:54,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 605 [2022-11-20 11:26:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:26:55,079 INFO L225 Difference]: With dead ends: 44915 [2022-11-20 11:26:55,079 INFO L226 Difference]: Without dead ends: 29758 [2022-11-20 11:26:55,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 603 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 11:26:55,167 INFO L413 NwaCegarLoop]: 4788 mSDtfsCounter, 3643 mSDsluCounter, 3907 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3643 SdHoareTripleChecker+Valid, 8695 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:26:55,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3643 Valid, 8695 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 11:26:55,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29758 states. [2022-11-20 11:26:57,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29758 to 29721. [2022-11-20 11:26:57,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29721 states, 20694 states have (on average 1.2619599884024355) internal successors, (26115), 20854 states have internal predecessors, (26115), 7398 states have call successors, (7398), 1643 states have call predecessors, (7398), 1626 states have return successors, (7648), 7315 states have call predecessors, (7648), 7394 states have call successors, (7648) [2022-11-20 11:26:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29721 states to 29721 states and 41161 transitions. [2022-11-20 11:26:57,494 INFO L78 Accepts]: Start accepts. Automaton has 29721 states and 41161 transitions. Word has length 605 [2022-11-20 11:26:57,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:26:57,496 INFO L495 AbstractCegarLoop]: Abstraction has 29721 states and 41161 transitions. [2022-11-20 11:26:57,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-20 11:26:57,497 INFO L276 IsEmpty]: Start isEmpty. Operand 29721 states and 41161 transitions. [2022-11-20 11:26:57,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2022-11-20 11:26:57,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:26:57,518 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:26:57,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:57,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:57,735 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:26:57,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:26:57,735 INFO L85 PathProgramCache]: Analyzing trace with hash 364216223, now seen corresponding path program 1 times [2022-11-20 11:26:57,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:26:57,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14094576] [2022-11-20 11:26:57,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:26:57,742 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 11:26:57,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:26:57,743 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:26:57,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:27:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:08,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 6632 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:27:08,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:27:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 11228 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 11046 trivial. 0 not checked. [2022-11-20 11:27:09,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:27:09,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:27:09,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14094576] [2022-11-20 11:27:09,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14094576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:09,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:09,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:27:09,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218261583] [2022-11-20 11:27:09,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:09,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:27:09,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:27:09,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:27:09,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:27:09,137 INFO L87 Difference]: Start difference. First operand 29721 states and 41161 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-20 11:27:12,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:27:15,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:27:15,159 INFO L93 Difference]: Finished difference Result 69526 states and 96372 transitions. [2022-11-20 11:27:15,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:27:15,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 631 [2022-11-20 11:27:15,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:27:15,463 INFO L225 Difference]: With dead ends: 69526 [2022-11-20 11:27:15,463 INFO L226 Difference]: Without dead ends: 49283 [2022-11-20 11:27:15,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 629 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 11:27:15,552 INFO L413 NwaCegarLoop]: 7396 mSDtfsCounter, 3629 mSDsluCounter, 3894 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3629 SdHoareTripleChecker+Valid, 11290 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:27:15,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3629 Valid, 11290 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 11:27:15,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49283 states. [2022-11-20 11:27:18,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49283 to 49279. [2022-11-20 11:27:18,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49279 states, 34310 states have (on average 1.2623433401340718) internal successors, (43311), 34562 states have internal predecessors, (43311), 12260 states have call successors, (12260), 2733 states have call predecessors, (12260), 2706 states have return successors, (12682), 12139 states have call predecessors, (12682), 12256 states have call successors, (12682) [2022-11-20 11:27:18,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49279 states to 49279 states and 68253 transitions. [2022-11-20 11:27:18,972 INFO L78 Accepts]: Start accepts. Automaton has 49279 states and 68253 transitions. Word has length 631 [2022-11-20 11:27:18,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:27:18,974 INFO L495 AbstractCegarLoop]: Abstraction has 49279 states and 68253 transitions. [2022-11-20 11:27:18,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-20 11:27:18,974 INFO L276 IsEmpty]: Start isEmpty. Operand 49279 states and 68253 transitions. [2022-11-20 11:27:18,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2022-11-20 11:27:18,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:27:18,994 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:19,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:27:19,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:27:19,207 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:27:19,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1750419617, now seen corresponding path program 1 times [2022-11-20 11:27:19,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:27:19,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863281728] [2022-11-20 11:27:19,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:19,219 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 11:27:19,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:27:19,220 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:27:19,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:27:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:30,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 6632 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:27:30,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:27:37,050 INFO L134 CoverageAnalysis]: Checked inductivity of 11228 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2022-11-20 11:27:37,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:27:37,050 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:27:37,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863281728] [2022-11-20 11:27:37,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863281728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:27:37,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:27:37,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:27:37,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690000944] [2022-11-20 11:27:37,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:27:37,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:27:37,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:27:37,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:27:37,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:27:37,054 INFO L87 Difference]: Start difference. First operand 49279 states and 68253 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2022-11-20 11:27:40,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:27:40,029 INFO L93 Difference]: Finished difference Result 49285 states and 68258 transitions. [2022-11-20 11:27:40,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:27:40,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 631 [2022-11-20 11:27:40,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:27:40,300 INFO L225 Difference]: With dead ends: 49285 [2022-11-20 11:27:40,301 INFO L226 Difference]: Without dead ends: 49283 [2022-11-20 11:27:40,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 627 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 11:27:40,326 INFO L413 NwaCegarLoop]: 3930 mSDtfsCounter, 3728 mSDsluCounter, 7848 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3729 SdHoareTripleChecker+Valid, 11778 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:27:40,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3729 Valid, 11778 Invalid, 20 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:27:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49283 states. [2022-11-20 11:27:44,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49283 to 49283. [2022-11-20 11:27:44,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49283 states, 34313 states have (on average 1.2623204033456707) internal successors, (43314), 34565 states have internal predecessors, (43314), 12260 states have call successors, (12260), 2734 states have call predecessors, (12260), 2707 states have return successors, (12682), 12139 states have call predecessors, (12682), 12256 states have call successors, (12682) [2022-11-20 11:27:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49283 states to 49283 states and 68256 transitions. [2022-11-20 11:27:44,532 INFO L78 Accepts]: Start accepts. Automaton has 49283 states and 68256 transitions. Word has length 631 [2022-11-20 11:27:44,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:27:44,534 INFO L495 AbstractCegarLoop]: Abstraction has 49283 states and 68256 transitions. [2022-11-20 11:27:44,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2022-11-20 11:27:44,534 INFO L276 IsEmpty]: Start isEmpty. Operand 49283 states and 68256 transitions. [2022-11-20 11:27:44,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2022-11-20 11:27:44,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:27:44,555 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:44,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:27:44,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:27:44,779 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:27:44,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:27:44,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1440475866, now seen corresponding path program 1 times [2022-11-20 11:27:44,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:27:44,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961762877] [2022-11-20 11:27:44,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:27:44,789 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 11:27:44,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:27:44,791 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:27:44,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:27:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:27:55,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 6639 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:27:55,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:28:02,411 INFO L134 CoverageAnalysis]: Checked inductivity of 11230 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2022-11-20 11:28:02,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:28:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 11230 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2022-11-20 11:28:04,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:28:04,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961762877] [2022-11-20 11:28:04,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961762877] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:28:04,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:28:04,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:28:04,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848950994] [2022-11-20 11:28:04,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:04,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:28:04,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:28:04,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:28:04,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:28:04,815 INFO L87 Difference]: Start difference. First operand 49283 states and 68256 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-20 11:28:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:08,842 INFO L93 Difference]: Finished difference Result 49289 states and 68261 transitions. [2022-11-20 11:28:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:28:08,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 636 [2022-11-20 11:28:08,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:09,091 INFO L225 Difference]: With dead ends: 49289 [2022-11-20 11:28:09,091 INFO L226 Difference]: Without dead ends: 49287 [2022-11-20 11:28:09,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1273 GetRequests, 1265 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:28:09,116 INFO L413 NwaCegarLoop]: 3933 mSDtfsCounter, 3786 mSDsluCounter, 7847 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3796 SdHoareTripleChecker+Valid, 11780 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:09,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3796 Valid, 11780 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:28:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49287 states. [2022-11-20 11:28:12,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49287 to 49287. [2022-11-20 11:28:12,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49287 states, 34316 states have (on average 1.2622974705676653) internal successors, (43317), 34568 states have internal predecessors, (43317), 12260 states have call successors, (12260), 2735 states have call predecessors, (12260), 2708 states have return successors, (12682), 12139 states have call predecessors, (12682), 12256 states have call successors, (12682) [2022-11-20 11:28:12,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49287 states to 49287 states and 68259 transitions. [2022-11-20 11:28:12,878 INFO L78 Accepts]: Start accepts. Automaton has 49287 states and 68259 transitions. Word has length 636 [2022-11-20 11:28:12,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:28:12,879 INFO L495 AbstractCegarLoop]: Abstraction has 49287 states and 68259 transitions. [2022-11-20 11:28:12,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-20 11:28:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 49287 states and 68259 transitions. [2022-11-20 11:28:12,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2022-11-20 11:28:12,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:28:12,904 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:13,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:28:13,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:28:13,131 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:28:13,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:13,132 INFO L85 PathProgramCache]: Analyzing trace with hash -110086282, now seen corresponding path program 1 times [2022-11-20 11:28:13,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:28:13,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137471581] [2022-11-20 11:28:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:13,142 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 11:28:13,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:28:13,144 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:28:13,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6f5636d-87a3-4b4a-bd61-a408f57f3501/bin/uautomizer-ug76WZFUDN/mathsat -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 11:28:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:24,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 6689 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:28:24,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:28:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 11243 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 11058 trivial. 0 not checked. [2022-11-20 11:28:24,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:28:24,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:28:24,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137471581] [2022-11-20 11:28:24,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137471581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:24,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:24,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:28:24,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547407750] [2022-11-20 11:28:24,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:24,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:28:24,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:28:24,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:28:24,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:28:24,682 INFO L87 Difference]: Start difference. First operand 49287 states and 68259 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-20 11:28:28,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:28:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:28:33,286 INFO L93 Difference]: Finished difference Result 108692 states and 150618 transitions. [2022-11-20 11:28:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:28:33,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 648 [2022-11-20 11:28:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:28:33,714 INFO L225 Difference]: With dead ends: 108692 [2022-11-20 11:28:33,714 INFO L226 Difference]: Without dead ends: 68883 [2022-11-20 11:28:34,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 646 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 11:28:34,132 INFO L413 NwaCegarLoop]: 7574 mSDtfsCounter, 3664 mSDsluCounter, 3896 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3664 SdHoareTripleChecker+Valid, 11470 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:28:34,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3664 Valid, 11470 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 11:28:34,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68883 states.