./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.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_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/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_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/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_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/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 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 --- 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 11:23:07,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:23:07,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:23:08,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:23:08,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:23:08,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:23:08,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:23:08,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:23:08,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:23:08,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:23:08,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:23:08,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:23:08,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:23:08,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:23:08,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:23:08,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:23:08,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:23:08,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:23:08,065 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:23:08,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:23:08,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:23:08,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:23:08,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:23:08,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:23:08,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:23:08,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:23:08,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:23:08,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:23:08,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:23:08,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:23:08,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:23:08,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:23:08,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:23:08,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:23:08,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:23:08,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:23:08,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:23:08,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:23:08,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:23:08,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:23:08,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:23:08,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:23:08,153 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:23:08,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:23:08,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:23:08,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:23:08,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:23:08,156 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:23:08,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:23:08,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:23:08,157 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:23:08,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:23:08,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:23:08,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:23:08,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:23:08,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:23:08,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:23:08,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:23:08,160 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:23:08,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:23:08,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:23:08,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:23:08,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:23:08,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:08,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:23:08,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:23:08,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:23:08,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:23:08,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:23:08,163 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:23:08,163 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:23:08,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:23:08,164 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_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 [2022-11-20 11:23:08,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:23:08,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:23:08,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:23:08,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:23:08,474 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:23:08,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-11-20 11:23:11,719 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:23:12,462 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:23:12,462 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-11-20 11:23:12,515 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/data/44663c24e/7f99a8ba1bc444d9825c2930cae92af5/FLAGf9e29a816 [2022-11-20 11:23:12,539 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/data/44663c24e/7f99a8ba1bc444d9825c2930cae92af5 [2022-11-20 11:23:12,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:23:12,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:23:12,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:23:12,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:23:12,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:23:12,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:12" (1/1) ... [2022-11-20 11:23:12,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e217f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:12, skipping insertion in model container [2022-11-20 11:23:12,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:12" (1/1) ... [2022-11-20 11:23:12,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:23:12,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:23:13,518 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 11:23:13,531 INFO L158 Benchmark]: Toolchain (without parser) took 983.33ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 99.3MB in the beginning and 134.9MB in the end (delta: -35.6MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2022-11-20 11:23:13,532 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 144.7MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:23:13,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 980.94ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 98.9MB in the beginning and 134.9MB in the end (delta: -36.0MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2022-11-20 11:23:13,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 144.7MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 980.94ms. Allocated memory was 144.7MB in the beginning and 190.8MB in the end (delta: 46.1MB). Free memory was 98.9MB in the beginning and 134.9MB in the end (delta: -36.0MB). Peak memory consumption was 57.9MB. 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_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/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_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/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_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/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 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 --- 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 11:23:16,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:23:16,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:23:16,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:23:16,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:23:16,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:23:16,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:23:16,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:23:16,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:23:16,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:23:16,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:23:16,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:23:16,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:23:16,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:23:16,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:23:16,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:23:16,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:23:16,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:23:16,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:23:16,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:23:16,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:23:16,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:23:16,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:23:16,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:23:16,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:23:16,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:23:16,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:23:16,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:23:16,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:23:16,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:23:16,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:23:16,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:23:16,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:23:16,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:23:16,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:23:16,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:23:16,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:23:16,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:23:16,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:23:16,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:23:16,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:23:16,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:23:16,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:23:16,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:23:16,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:23:16,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:23:16,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:23:16,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:23:16,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:23:16,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:23:16,257 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:23:16,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:23:16,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:23:16,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:23:16,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:23:16,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:23:16,260 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:23:16,260 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:23:16,261 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:23:16,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:23:16,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:23:16,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:23:16,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:23:16,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:23:16,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:23:16,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:16,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:23:16,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:23:16,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:23:16,264 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:23:16,264 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:23:16,264 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:23:16,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:23:16,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:23:16,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:23:16,266 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_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 [2022-11-20 11:23:16,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:23:16,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:23:16,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:23:16,783 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:23:16,783 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:23:16,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-11-20 11:23:20,590 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:23:21,274 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:23:21,275 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-11-20 11:23:21,329 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/data/0023a629f/c825496b44484979a7a48464593eaeff/FLAGe66c40293 [2022-11-20 11:23:21,379 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/data/0023a629f/c825496b44484979a7a48464593eaeff [2022-11-20 11:23:21,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:23:21,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:23:21,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:23:21,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:23:21,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:23:21,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:21" (1/1) ... [2022-11-20 11:23:21,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@644ad1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:21, skipping insertion in model container [2022-11-20 11:23:21,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:23:21" (1/1) ... [2022-11-20 11:23:21,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:23:21,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:23:24,886 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2022-11-20 11:23:24,892 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2022-11-20 11:23:24,893 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2022-11-20 11:23:24,894 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2022-11-20 11:23:24,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:24,999 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:23:25,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:23:25,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2022-11-20 11:23:25,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2022-11-20 11:23:25,474 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2022-11-20 11:23:25,475 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2022-11-20 11:23:25,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:25,526 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:23:26,115 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2022-11-20 11:23:26,116 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2022-11-20 11:23:26,116 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2022-11-20 11:23:26,117 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2022-11-20 11:23:26,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:23:26,533 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:23:26,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26 WrapperNode [2022-11-20 11:23:26,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:23:26,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:23:26,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:23:26,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:23:26,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:26,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:26,872 INFO L138 Inliner]: procedures = 432, calls = 1993, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 5084 [2022-11-20 11:23:26,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:23:26,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:23:26,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:23:26,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:23:26,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:26,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:26,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:26,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:27,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:27,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:27,233 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:27,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:27,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:23:27,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:23:27,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:23:27,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:23:27,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (1/1) ... [2022-11-20 11:23:27,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:27,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:23:27,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:23:27,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:23:27,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fst_cleanup_module_12_2 [2022-11-20 11:23:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fst_cleanup_module_12_2 [2022-11-20 11:23:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 11:23:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 11:23:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:23:27,413 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:23:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 11:23:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 11:23:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:23:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:23:27,414 INFO L130 BoogieDeclarations]: Found specification of procedure fst_remove_one [2022-11-20 11:23:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_remove_one [2022-11-20 11:23:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 11:23:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 11:23:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:23:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:23:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 11:23:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 11:23:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 11:23:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 11:23:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-20 11:23:27,418 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-20 11:23:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-11-20 11:23:27,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-11-20 11:23:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2022-11-20 11:23:27,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2022-11-20 11:23:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:23:27,419 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:23:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure fst_close [2022-11-20 11:23:27,420 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_close [2022-11-20 11:23:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 11:23:27,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 11:23:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:23:27,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:23:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-20 11:23:27,421 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-20 11:23:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:23:27,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:23:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure fst_tx_timeout [2022-11-20 11:23:27,421 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_tx_timeout [2022-11-20 11:23:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 11:23:27,422 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 11:23:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:23:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 11:23:27,423 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 11:23:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure fst_open [2022-11-20 11:23:27,423 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_open [2022-11-20 11:23:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:23:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:23:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:23:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_type_trans [2022-11-20 11:23:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_type_trans [2022-11-20 11:23:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 11:23:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 11:23:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 11:23:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 11:23:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 11:23:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 11:23:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 11:23:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 11:23:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:23:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:23:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-20 11:23:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-20 11:23:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:23:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:23:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure fst_issue_cmd [2022-11-20 11:23:27,427 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_issue_cmd [2022-11-20 11:23:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 11:23:27,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 11:23:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 11:23:27,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 11:23:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 11:23:27,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 11:23:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 11:23:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 11:23:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 11:23:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 11:23:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:23:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:23:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:23:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 11:23:27,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 11:23:27,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 11:23:27,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 11:23:27,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_card_lock_of_fst_card_info [2022-11-20 11:23:27,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_card_lock_of_fst_card_info [2022-11-20 11:23:27,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:23:27,431 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpureset [2022-11-20 11:23:27,432 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpureset [2022-11-20 11:23:27,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:23:27,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:23:27,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:23:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:23:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:23:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:23:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:23:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:23:27,433 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-20 11:23:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-20 11:23:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-20 11:23:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-20 11:23:27,435 INFO L130 BoogieDeclarations]: Found specification of procedure fst_q_work_item [2022-11-20 11:23:27,439 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_q_work_item [2022-11-20 11:23:27,439 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 11:23:27,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 11:23:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:23:27,441 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:23:27,441 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 11:23:27,442 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 11:23:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 11:23:27,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 11:23:27,447 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 11:23:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 11:23:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:23:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-20 11:23:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-20 11:23:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-20 11:23:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-20 11:23:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:23:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:23:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:23:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:23:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:23:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:23:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:23:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:23:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:23:27,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:23:27,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:23:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:23:27,450 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 11:23:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 11:23:27,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:23:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:23:27,450 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 11:23:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 11:23:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 11:23:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 11:23:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 11:23:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 11:23:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:23:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-20 11:23:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-20 11:23:27,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:23:27,452 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-11-20 11:23:27,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-11-20 11:23:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:23:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:23:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:23:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:23:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:23:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 11:23:27,454 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 11:23:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-20 11:23:27,454 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-20 11:23:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-20 11:23:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-20 11:23:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:23:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:23:27,456 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-20 11:23:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-20 11:23:27,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 11:23:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 11:23:27,456 INFO L130 BoogieDeclarations]: Found specification of procedure farsync_type_trans [2022-11-20 11:23:27,457 INFO L138 BoogieDeclarations]: Found implementation of procedure farsync_type_trans [2022-11-20 11:23:27,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:23:27,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:23:27,457 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 11:23:27,457 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 11:23:27,457 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:23:27,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:23:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_fst_work_q_lock [2022-11-20 11:23:27,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_fst_work_q_lock [2022-11-20 11:23:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:23:27,458 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:23:27,458 INFO L130 BoogieDeclarations]: Found specification of procedure fst_disable_intr [2022-11-20 11:23:27,459 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_disable_intr [2022-11-20 11:23:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:23:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:23:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:23:27,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:23:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:23:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:23:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 11:23:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 11:23:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-20 11:23:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-20 11:23:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure do_bottom_half_tx [2022-11-20 11:23:27,461 INFO L138 BoogieDeclarations]: Found implementation of procedure do_bottom_half_tx [2022-11-20 11:23:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_rx_status [2022-11-20 11:23:27,461 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_rx_status [2022-11-20 11:23:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:23:27,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:23:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-20 11:23:27,462 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-20 11:23:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2022-11-20 11:23:27,462 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2022-11-20 11:23:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-20 11:23:27,462 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-20 11:23:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 11:23:27,463 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 11:23:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-20 11:23:27,463 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-20 11:23:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure fst_clear_intr [2022-11-20 11:23:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_clear_intr [2022-11-20 11:23:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-20 11:23:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-20 11:23:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 11:23:27,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 11:23:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-20 11:23:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-20 11:23:28,511 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:23:28,520 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:23:28,720 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:24:04,632 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 11:24:04,825 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:24:04,862 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:24:04,862 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:24:04,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:04 BoogieIcfgContainer [2022-11-20 11:24:04,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:24:04,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:24:04,872 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:24:04,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:24:04,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:23:21" (1/3) ... [2022-11-20 11:24:04,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b31368b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:24:04, skipping insertion in model container [2022-11-20 11:24:04,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:23:26" (2/3) ... [2022-11-20 11:24:04,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b31368b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:24:04, skipping insertion in model container [2022-11-20 11:24:04,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:04" (3/3) ... [2022-11-20 11:24:04,884 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2022-11-20 11:24:04,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:24:04,913 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 11:24:05,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:24:05,072 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;@11de0c15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:24:05,072 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 11:24:05,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 1818 states, 1237 states have (on average 1.2853678253839935) internal successors, (1590), 1251 states have internal predecessors, (1590), 488 states have call successors, (488), 91 states have call predecessors, (488), 90 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2022-11-20 11:24:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-20 11:24:05,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:05,128 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:05,128 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 11:24:05,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:05,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1586425349, now seen corresponding path program 1 times [2022-11-20 11:24:05,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:05,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [304229655] [2022-11-20 11:24:05,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:05,162 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 11:24:05,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:05,169 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:05,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:06,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:06,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:06,744 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 11:24:06,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:06,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:06,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [304229655] [2022-11-20 11:24:06,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [304229655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:06,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:06,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:06,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131339511] [2022-11-20 11:24:06,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:06,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:06,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:06,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:06,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:06,842 INFO L87 Difference]: Start difference. First operand has 1818 states, 1237 states have (on average 1.2853678253839935) internal successors, (1590), 1251 states have internal predecessors, (1590), 488 states have call successors, (488), 91 states have call predecessors, (488), 90 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 11:24:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:07,580 INFO L93 Difference]: Finished difference Result 5318 states and 7604 transitions. [2022-11-20 11:24:07,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:07,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2022-11-20 11:24:07,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:07,625 INFO L225 Difference]: With dead ends: 5318 [2022-11-20 11:24:07,626 INFO L226 Difference]: Without dead ends: 3504 [2022-11-20 11:24:07,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 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 11:24:07,646 INFO L413 NwaCegarLoop]: 3003 mSDtfsCounter, 2426 mSDsluCounter, 2487 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 5490 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:07,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 5490 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:24:07,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2022-11-20 11:24:08,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 3500. [2022-11-20 11:24:08,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 2399 states have (on average 1.2817840766986244) internal successors, (3075), 2426 states have internal predecessors, (3075), 922 states have call successors, (922), 177 states have call predecessors, (922), 176 states have return successors, (918), 914 states have call predecessors, (918), 918 states have call successors, (918) [2022-11-20 11:24:08,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 4915 transitions. [2022-11-20 11:24:08,105 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 4915 transitions. Word has length 83 [2022-11-20 11:24:08,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:08,106 INFO L495 AbstractCegarLoop]: Abstraction has 3500 states and 4915 transitions. [2022-11-20 11:24:08,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 11:24:08,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 4915 transitions. [2022-11-20 11:24:08,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-20 11:24:08,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:08,118 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:08,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:08,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:08,334 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 11:24:08,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:08,335 INFO L85 PathProgramCache]: Analyzing trace with hash -246342366, now seen corresponding path program 1 times [2022-11-20 11:24:08,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:08,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282902618] [2022-11-20 11:24:08,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:08,338 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:24:08,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:08,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:08,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:09,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:09,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 11:24:09,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:09,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:09,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282902618] [2022-11-20 11:24:09,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282902618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:09,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:09,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:09,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151019468] [2022-11-20 11:24:09,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:09,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:09,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:09,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:09,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:09,988 INFO L87 Difference]: Start difference. First operand 3500 states and 4915 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 11:24:10,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:10,780 INFO L93 Difference]: Finished difference Result 9632 states and 13479 transitions. [2022-11-20 11:24:10,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:10,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2022-11-20 11:24:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:10,829 INFO L225 Difference]: With dead ends: 9632 [2022-11-20 11:24:10,830 INFO L226 Difference]: Without dead ends: 6147 [2022-11-20 11:24:10,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 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 11:24:10,851 INFO L413 NwaCegarLoop]: 2906 mSDtfsCounter, 1881 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 5398 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:10,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1881 Valid, 5398 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:24:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6147 states. [2022-11-20 11:24:11,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6147 to 6117. [2022-11-20 11:24:11,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6117 states, 4178 states have (on average 1.2769267592149354) internal successors, (5335), 4230 states have internal predecessors, (5335), 1599 states have call successors, (1599), 338 states have call predecessors, (1599), 337 states have return successors, (1601), 1580 states have call predecessors, (1601), 1595 states have call successors, (1601) [2022-11-20 11:24:11,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6117 states to 6117 states and 8535 transitions. [2022-11-20 11:24:11,340 INFO L78 Accepts]: Start accepts. Automaton has 6117 states and 8535 transitions. Word has length 95 [2022-11-20 11:24:11,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:11,343 INFO L495 AbstractCegarLoop]: Abstraction has 6117 states and 8535 transitions. [2022-11-20 11:24:11,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 11:24:11,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6117 states and 8535 transitions. [2022-11-20 11:24:11,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:24:11,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:11,348 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:11,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:11,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:11,562 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 11:24:11,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:11,563 INFO L85 PathProgramCache]: Analyzing trace with hash 917190880, now seen corresponding path program 1 times [2022-11-20 11:24:11,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:11,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933336682] [2022-11-20 11:24:11,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:11,566 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 11:24:11,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:11,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:11,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:12,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:12,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:12,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:13,079 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 11:24:13,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:13,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:13,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933336682] [2022-11-20 11:24:13,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933336682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:13,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:13,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:13,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928522370] [2022-11-20 11:24:13,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:13,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:13,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:13,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:13,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:13,083 INFO L87 Difference]: Start difference. First operand 6117 states and 8535 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 11:24:13,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:13,838 INFO L93 Difference]: Finished difference Result 11890 states and 16605 transitions. [2022-11-20 11:24:13,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:13,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2022-11-20 11:24:13,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:13,891 INFO L225 Difference]: With dead ends: 11890 [2022-11-20 11:24:13,892 INFO L226 Difference]: Without dead ends: 5788 [2022-11-20 11:24:13,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 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 11:24:13,932 INFO L413 NwaCegarLoop]: 3226 mSDtfsCounter, 1765 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1765 SdHoareTripleChecker+Valid, 5691 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:13,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1765 Valid, 5691 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:24:13,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2022-11-20 11:24:14,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5760. [2022-11-20 11:24:14,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 3981 states have (on average 1.2866114041698067) internal successors, (5122), 4029 states have internal predecessors, (5122), 1442 states have call successors, (1442), 337 states have call predecessors, (1442), 334 states have return successors, (1441), 1419 states have call predecessors, (1441), 1438 states have call successors, (1441) [2022-11-20 11:24:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 8005 transitions. [2022-11-20 11:24:14,454 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 8005 transitions. Word has length 93 [2022-11-20 11:24:14,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:14,457 INFO L495 AbstractCegarLoop]: Abstraction has 5760 states and 8005 transitions. [2022-11-20 11:24:14,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-20 11:24:14,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 8005 transitions. [2022-11-20 11:24:14,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 11:24:14,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:14,462 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:14,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:14,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:14,677 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 11:24:14,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:14,677 INFO L85 PathProgramCache]: Analyzing trace with hash -418656966, now seen corresponding path program 1 times [2022-11-20 11:24:14,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:14,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245053947] [2022-11-20 11:24:14,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:14,680 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 11:24:14,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:14,682 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:14,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:16,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:16,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:16,190 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 11:24:16,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:16,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:16,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245053947] [2022-11-20 11:24:16,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245053947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:16,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:16,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:16,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840753648] [2022-11-20 11:24:16,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:16,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:16,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:16,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:16,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:16,193 INFO L87 Difference]: Start difference. First operand 5760 states and 8005 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 11:24:17,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:17,124 INFO L93 Difference]: Finished difference Result 15901 states and 22021 transitions. [2022-11-20 11:24:17,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:17,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2022-11-20 11:24:17,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:17,215 INFO L225 Difference]: With dead ends: 15901 [2022-11-20 11:24:17,215 INFO L226 Difference]: Without dead ends: 10156 [2022-11-20 11:24:17,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 11:24:17,238 INFO L413 NwaCegarLoop]: 2966 mSDtfsCounter, 2266 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 5443 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:17,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 5443 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:24:17,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10156 states. [2022-11-20 11:24:17,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10156 to 10122. [2022-11-20 11:24:17,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10122 states, 6991 states have (on average 1.274495780288943) internal successors, (8910), 7086 states have internal predecessors, (8910), 2508 states have call successors, (2508), 625 states have call predecessors, (2508), 620 states have return successors, (2510), 2455 states have call predecessors, (2510), 2504 states have call successors, (2510) [2022-11-20 11:24:17,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10122 states to 10122 states and 13928 transitions. [2022-11-20 11:24:17,994 INFO L78 Accepts]: Start accepts. Automaton has 10122 states and 13928 transitions. Word has length 91 [2022-11-20 11:24:17,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:17,994 INFO L495 AbstractCegarLoop]: Abstraction has 10122 states and 13928 transitions. [2022-11-20 11:24:17,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 11:24:17,995 INFO L276 IsEmpty]: Start isEmpty. Operand 10122 states and 13928 transitions. [2022-11-20 11:24:17,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-20 11:24:17,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:17,997 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:24:18,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:18,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:18,214 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:24:18,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:18,215 INFO L85 PathProgramCache]: Analyzing trace with hash -674569662, now seen corresponding path program 1 times [2022-11-20 11:24:18,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:18,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928242031] [2022-11-20 11:24:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:18,218 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 11:24:18,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:18,220 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:18,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:19,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:19,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 11:24:19,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:19,631 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:19,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928242031] [2022-11-20 11:24:19,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928242031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:19,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:19,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:19,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674184214] [2022-11-20 11:24:19,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:19,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:19,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:19,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:19,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:19,635 INFO L87 Difference]: Start difference. First operand 10122 states and 13928 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 11:24:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:21,054 INFO L93 Difference]: Finished difference Result 28995 states and 39859 transitions. [2022-11-20 11:24:21,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:21,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 92 [2022-11-20 11:24:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:21,150 INFO L225 Difference]: With dead ends: 28995 [2022-11-20 11:24:21,151 INFO L226 Difference]: Without dead ends: 18888 [2022-11-20 11:24:21,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 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 11:24:21,197 INFO L413 NwaCegarLoop]: 3257 mSDtfsCounter, 2398 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 5735 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:21,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2398 Valid, 5735 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:24:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18888 states. [2022-11-20 11:24:22,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18888 to 18846. [2022-11-20 11:24:22,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18846 states, 13039 states have (on average 1.266124702814633) internal successors, (16509), 13229 states have internal predecessors, (16509), 4633 states have call successors, (4633), 1180 states have call predecessors, (4633), 1171 states have return successors, (4641), 4520 states have call predecessors, (4641), 4629 states have call successors, (4641) [2022-11-20 11:24:22,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18846 states to 18846 states and 25783 transitions. [2022-11-20 11:24:22,896 INFO L78 Accepts]: Start accepts. Automaton has 18846 states and 25783 transitions. Word has length 92 [2022-11-20 11:24:22,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:22,898 INFO L495 AbstractCegarLoop]: Abstraction has 18846 states and 25783 transitions. [2022-11-20 11:24:22,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 11:24:22,899 INFO L276 IsEmpty]: Start isEmpty. Operand 18846 states and 25783 transitions. [2022-11-20 11:24:22,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-20 11:24:22,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:22,902 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:22,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:23,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:23,126 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:24:23,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1266838149, now seen corresponding path program 1 times [2022-11-20 11:24:23,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:23,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419178051] [2022-11-20 11:24:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:23,129 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 11:24:23,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:23,130 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:23,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:24,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:24,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-11-20 11:24:24,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:24,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:24,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419178051] [2022-11-20 11:24:24,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419178051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:24,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:24,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:24,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716614735] [2022-11-20 11:24:24,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:24,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:24,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:24,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:24,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:24,545 INFO L87 Difference]: Start difference. First operand 18846 states and 25783 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 11:24:26,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:26,640 INFO L93 Difference]: Finished difference Result 52602 states and 71895 transitions. [2022-11-20 11:24:26,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:26,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 108 [2022-11-20 11:24:26,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:26,858 INFO L225 Difference]: With dead ends: 52602 [2022-11-20 11:24:26,859 INFO L226 Difference]: Without dead ends: 33771 [2022-11-20 11:24:26,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 11:24:26,935 INFO L413 NwaCegarLoop]: 3545 mSDtfsCounter, 2272 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 5989 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:26,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 5989 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:24:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33771 states. [2022-11-20 11:24:29,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33771 to 33729. [2022-11-20 11:24:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33729 states, 23313 states have (on average 1.2601123836486081) internal successors, (29377), 23707 states have internal predecessors, (29377), 8304 states have call successors, (8304), 2142 states have call predecessors, (8304), 2109 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2022-11-20 11:24:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33729 states to 33729 states and 46013 transitions. [2022-11-20 11:24:29,770 INFO L78 Accepts]: Start accepts. Automaton has 33729 states and 46013 transitions. Word has length 108 [2022-11-20 11:24:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:29,771 INFO L495 AbstractCegarLoop]: Abstraction has 33729 states and 46013 transitions. [2022-11-20 11:24:29,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 11:24:29,771 INFO L276 IsEmpty]: Start isEmpty. Operand 33729 states and 46013 transitions. [2022-11-20 11:24:29,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-20 11:24:29,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:29,778 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:29,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:29,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:29,994 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 11:24:29,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:29,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1651618579, now seen corresponding path program 1 times [2022-11-20 11:24:29,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:29,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586056790] [2022-11-20 11:24:29,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:29,996 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 11:24:29,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:29,999 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:30,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:31,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:24:31,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:31,565 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 11:24:31,565 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:31,565 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:31,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586056790] [2022-11-20 11:24:31,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586056790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:31,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:31,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:31,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970651245] [2022-11-20 11:24:31,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:31,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:31,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:31,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:31,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:31,568 INFO L87 Difference]: Start difference. First operand 33729 states and 46013 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:24:33,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:33,808 INFO L93 Difference]: Finished difference Result 67430 states and 92019 transitions. [2022-11-20 11:24:33,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:33,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2022-11-20 11:24:33,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:33,992 INFO L225 Difference]: With dead ends: 67430 [2022-11-20 11:24:33,993 INFO L226 Difference]: Without dead ends: 33793 [2022-11-20 11:24:34,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 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 11:24:34,083 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 1 mSDsluCounter, 2526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5054 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:34,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5054 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:24:34,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33793 states. [2022-11-20 11:24:36,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33793 to 33761. [2022-11-20 11:24:36,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33761 states, 23345 states have (on average 1.2597558363675305) internal successors, (29409), 23739 states have internal predecessors, (29409), 8304 states have call successors, (8304), 2142 states have call predecessors, (8304), 2109 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2022-11-20 11:24:36,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 46045 transitions. [2022-11-20 11:24:36,829 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 46045 transitions. Word has length 150 [2022-11-20 11:24:36,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:36,830 INFO L495 AbstractCegarLoop]: Abstraction has 33761 states and 46045 transitions. [2022-11-20 11:24:36,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:24:36,830 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 46045 transitions. [2022-11-20 11:24:36,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-20 11:24:36,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:36,832 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:36,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:37,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:37,046 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 11:24:37,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:37,046 INFO L85 PathProgramCache]: Analyzing trace with hash -544011153, now seen corresponding path program 1 times [2022-11-20 11:24:37,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:37,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504632146] [2022-11-20 11:24:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:37,048 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 11:24:37,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:37,050 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:37,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:38,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:24:38,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 76 proven. 1 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-20 11:24:38,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:24:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-20 11:24:38,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:38,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504632146] [2022-11-20 11:24:38,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504632146] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:24:38,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:24:38,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-20 11:24:38,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174618588] [2022-11-20 11:24:38,905 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:24:38,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:24:38,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:38,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:24:38,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:24:38,907 INFO L87 Difference]: Start difference. First operand 33761 states and 46045 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:24:40,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:40,856 INFO L93 Difference]: Finished difference Result 67622 states and 92275 transitions. [2022-11-20 11:24:40,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:24:40,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 152 [2022-11-20 11:24:40,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:41,190 INFO L225 Difference]: With dead ends: 67622 [2022-11-20 11:24:41,190 INFO L226 Difference]: Without dead ends: 33953 [2022-11-20 11:24:41,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:24:41,280 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 4 mSDsluCounter, 5052 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7580 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:41,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7580 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:24:41,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33953 states. [2022-11-20 11:24:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33953 to 33953. [2022-11-20 11:24:43,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33953 states, 23537 states have (on average 1.257636912095849) internal successors, (29601), 23931 states have internal predecessors, (29601), 8304 states have call successors, (8304), 2142 states have call predecessors, (8304), 2109 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2022-11-20 11:24:43,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33953 states to 33953 states and 46237 transitions. [2022-11-20 11:24:43,336 INFO L78 Accepts]: Start accepts. Automaton has 33953 states and 46237 transitions. Word has length 152 [2022-11-20 11:24:43,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:43,337 INFO L495 AbstractCegarLoop]: Abstraction has 33953 states and 46237 transitions. [2022-11-20 11:24:43,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:24:43,338 INFO L276 IsEmpty]: Start isEmpty. Operand 33953 states and 46237 transitions. [2022-11-20 11:24:43,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-20 11:24:43,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:43,341 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:43,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:43,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:43,562 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:24:43,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:43,563 INFO L85 PathProgramCache]: Analyzing trace with hash -145183101, now seen corresponding path program 2 times [2022-11-20 11:24:43,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:43,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725012755] [2022-11-20 11:24:43,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:24:43,565 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 11:24:43,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:43,574 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:43,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 11:24:44,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 11:24:44,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:24:44,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:24:44,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-11-20 11:24:45,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:24:45,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:45,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725012755] [2022-11-20 11:24:45,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725012755] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:45,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:45,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:24:45,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173379650] [2022-11-20 11:24:45,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:45,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:24:45,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:45,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:24:45,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:24:45,619 INFO L87 Difference]: Start difference. First operand 33953 states and 46237 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:24:47,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:47,484 INFO L93 Difference]: Finished difference Result 33959 states and 46242 transitions. [2022-11-20 11:24:47,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:24:47,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 158 [2022-11-20 11:24:47,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:47,641 INFO L225 Difference]: With dead ends: 33959 [2022-11-20 11:24:47,642 INFO L226 Difference]: Without dead ends: 33957 [2022-11-20 11:24:47,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:24:47,659 INFO L413 NwaCegarLoop]: 2527 mSDtfsCounter, 2448 mSDsluCounter, 5041 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 7568 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:47,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2449 Valid, 7568 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:24:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33957 states. [2022-11-20 11:24:50,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33957 to 33957. [2022-11-20 11:24:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33957 states, 23540 states have (on average 1.257604078164826) internal successors, (29604), 23934 states have internal predecessors, (29604), 8304 states have call successors, (8304), 2143 states have call predecessors, (8304), 2110 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2022-11-20 11:24:50,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33957 states to 33957 states and 46240 transitions. [2022-11-20 11:24:50,277 INFO L78 Accepts]: Start accepts. Automaton has 33957 states and 46240 transitions. Word has length 158 [2022-11-20 11:24:50,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:50,278 INFO L495 AbstractCegarLoop]: Abstraction has 33957 states and 46240 transitions. [2022-11-20 11:24:50,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 11:24:50,278 INFO L276 IsEmpty]: Start isEmpty. Operand 33957 states and 46240 transitions. [2022-11-20 11:24:50,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-20 11:24:50,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:50,280 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:50,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:50,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:50,506 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:24:50,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:50,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1704783613, now seen corresponding path program 1 times [2022-11-20 11:24:50,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:50,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1847530749] [2022-11-20 11:24:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:50,508 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 11:24:50,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:50,509 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:50,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 11:24:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:51,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:24:51,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:24:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 76 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-11-20 11:24:51,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:24:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-20 11:24:52,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:24:52,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1847530749] [2022-11-20 11:24:52,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1847530749] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:24:52,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:24:52,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-20 11:24:52,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433411164] [2022-11-20 11:24:52,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:24:52,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:24:52,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:24:52,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:24:52,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:24:52,070 INFO L87 Difference]: Start difference. First operand 33957 states and 46240 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 11:24:55,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:24:55,212 INFO L93 Difference]: Finished difference Result 68206 states and 92953 transitions. [2022-11-20 11:24:55,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:24:55,213 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 163 [2022-11-20 11:24:55,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:24:55,382 INFO L225 Difference]: With dead ends: 68206 [2022-11-20 11:24:55,383 INFO L226 Difference]: Without dead ends: 34341 [2022-11-20 11:24:55,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:24:55,474 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 10 mSDsluCounter, 12630 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 15158 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:24:55,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 15158 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:24:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34341 states. [2022-11-20 11:24:58,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34341 to 34341. [2022-11-20 11:24:58,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34341 states, 23924 states have (on average 1.2534693195117874) internal successors, (29988), 24318 states have internal predecessors, (29988), 8304 states have call successors, (8304), 2143 states have call predecessors, (8304), 2110 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2022-11-20 11:24:58,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34341 states to 34341 states and 46624 transitions. [2022-11-20 11:24:58,509 INFO L78 Accepts]: Start accepts. Automaton has 34341 states and 46624 transitions. Word has length 163 [2022-11-20 11:24:58,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:24:58,510 INFO L495 AbstractCegarLoop]: Abstraction has 34341 states and 46624 transitions. [2022-11-20 11:24:58,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 11:24:58,510 INFO L276 IsEmpty]: Start isEmpty. Operand 34341 states and 46624 transitions. [2022-11-20 11:24:58,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-20 11:24:58,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:24:58,514 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:58,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:24:58,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:58,730 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:24:58,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:58,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1399373611, now seen corresponding path program 2 times [2022-11-20 11:24:58,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:24:58,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822944588] [2022-11-20 11:24:58,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 11:24:58,732 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 11:24:58,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:24:58,734 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:24:58,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 11:25:00,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 11:25:00,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:25:00,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 1275 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 11:25:00,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:01,314 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 76 proven. 100 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2022-11-20 11:25:01,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:25:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 12 proven. 100 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-20 11:25:02,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:02,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822944588] [2022-11-20 11:25:02,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822944588] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:25:02,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:25:02,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2022-11-20 11:25:02,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982331990] [2022-11-20 11:25:02,300 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:25:02,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-20 11:25:02,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:02,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-20 11:25:02,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2022-11-20 11:25:02,302 INFO L87 Difference]: Start difference. First operand 34341 states and 46624 transitions. Second operand has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 24 states have internal predecessors, (124), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 11:25:07,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:07,452 INFO L93 Difference]: Finished difference Result 69358 states and 94297 transitions. [2022-11-20 11:25:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 11:25:07,452 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 24 states have internal predecessors, (124), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 175 [2022-11-20 11:25:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:07,565 INFO L225 Difference]: With dead ends: 69358 [2022-11-20 11:25:07,565 INFO L226 Difference]: Without dead ends: 35109 [2022-11-20 11:25:07,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2022-11-20 11:25:07,634 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 23 mSDsluCounter, 27786 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 30314 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:07,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 30314 Invalid, 307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 11:25:07,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35109 states. [2022-11-20 11:25:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35109 to 35109. [2022-11-20 11:25:10,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35109 states, 24692 states have (on average 1.2455856147740159) internal successors, (30756), 25086 states have internal predecessors, (30756), 8304 states have call successors, (8304), 2143 states have call predecessors, (8304), 2110 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2022-11-20 11:25:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35109 states to 35109 states and 47392 transitions. [2022-11-20 11:25:10,128 INFO L78 Accepts]: Start accepts. Automaton has 35109 states and 47392 transitions. Word has length 175 [2022-11-20 11:25:10,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:10,129 INFO L495 AbstractCegarLoop]: Abstraction has 35109 states and 47392 transitions. [2022-11-20 11:25:10,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 24 states have internal predecessors, (124), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 11:25:10,130 INFO L276 IsEmpty]: Start isEmpty. Operand 35109 states and 47392 transitions. [2022-11-20 11:25:10,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-20 11:25:10,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:10,134 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:10,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:10,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:25:10,350 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:25:10,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:10,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1246091397, now seen corresponding path program 3 times [2022-11-20 11:25:10,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:10,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125715548] [2022-11-20 11:25:10,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 11:25:10,352 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:25:10,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:10,353 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:25:10,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 11:25:12,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-20 11:25:12,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 11:25:12,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:25:12,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:13,390 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2022-11-20 11:25:13,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:25:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2022-11-20 11:25:14,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:14,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125715548] [2022-11-20 11:25:14,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125715548] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:25:14,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:25:14,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:25:14,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295038565] [2022-11-20 11:25:14,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:14,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:25:14,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:14,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:25:14,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:25:14,053 INFO L87 Difference]: Start difference. First operand 35109 states and 47392 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:25:16,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:25:16,617 INFO L93 Difference]: Finished difference Result 35115 states and 47397 transitions. [2022-11-20 11:25:16,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:25:16,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 199 [2022-11-20 11:25:16,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:25:16,723 INFO L225 Difference]: With dead ends: 35115 [2022-11-20 11:25:16,723 INFO L226 Difference]: Without dead ends: 35113 [2022-11-20 11:25:16,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:25:16,737 INFO L413 NwaCegarLoop]: 2530 mSDtfsCounter, 2467 mSDsluCounter, 5040 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 7570 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:25:16,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2478 Valid, 7570 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:25:16,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35113 states. [2022-11-20 11:25:19,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35113 to 35113. [2022-11-20 11:25:19,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35113 states, 24695 states have (on average 1.245555780522373) internal successors, (30759), 25089 states have internal predecessors, (30759), 8304 states have call successors, (8304), 2144 states have call predecessors, (8304), 2111 states have return successors, (8332), 8039 states have call predecessors, (8332), 8300 states have call successors, (8332) [2022-11-20 11:25:19,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35113 states to 35113 states and 47395 transitions. [2022-11-20 11:25:19,448 INFO L78 Accepts]: Start accepts. Automaton has 35113 states and 47395 transitions. Word has length 199 [2022-11-20 11:25:19,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:25:19,449 INFO L495 AbstractCegarLoop]: Abstraction has 35113 states and 47395 transitions. [2022-11-20 11:25:19,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:25:19,450 INFO L276 IsEmpty]: Start isEmpty. Operand 35113 states and 47395 transitions. [2022-11-20 11:25:19,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-20 11:25:19,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:25:19,454 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 9, 9, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:19,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:25:19,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:25:19,678 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:25:19,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:19,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1914647045, now seen corresponding path program 1 times [2022-11-20 11:25:19,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:25:19,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031585469] [2022-11-20 11:25:19,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:19,680 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 11:25:19,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:25:19,683 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -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 11:25:19,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c53c176f-9bc9-4501-8d0a-3b1adc6ae90e/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 11:25:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:21,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-20 11:25:21,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:25:22,564 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 76 proven. 484 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-11-20 11:25:22,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:25:25,710 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 14 proven. 484 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-20 11:25:25,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:25:25,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031585469] [2022-11-20 11:25:25,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031585469] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:25:25,712 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:25:25,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2022-11-20 11:25:25,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958186163] [2022-11-20 11:25:25,713 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:25:25,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-20 11:25:25,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:25:25,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-20 11:25:25,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=1725, Unknown=0, NotChecked=0, Total=2256 [2022-11-20 11:25:25,717 INFO L87 Difference]: Start difference. First operand 35113 states and 47395 transitions. Second operand has 48 states, 48 states have (on average 3.5833333333333335) internal successors, (172), 48 states have internal predecessors, (172), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)