./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-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/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_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/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-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/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_0175ea88-0b1c-4c49-b664-e93806bce914/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 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:32:26,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:32:26,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:32:26,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:32:26,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:32:26,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:32:26,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:32:26,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:32:26,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:32:26,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:32:26,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:32:26,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:32:26,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:32:26,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:32:26,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:32:26,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:32:26,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:32:26,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:32:26,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:32:26,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:32:26,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:32:26,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:32:26,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:32:26,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:32:26,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:32:26,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:32:26,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:32:26,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:32:26,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:32:26,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:32:26,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:32:26,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:32:26,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:32:26,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:32:26,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:32:26,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:32:26,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:32:26,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:32:26,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:32:26,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:32:26,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:32:26,950 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:32:26,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:32:26,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:32:26,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:32:26,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:32:26,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:32:26,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:32:26,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:32:26,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:32:26,988 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:32:26,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:32:26,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:32:26,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:32:26,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:32:26,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:32:26,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:32:26,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:32:26,990 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:32:26,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:32:26,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:32:26,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:32:26,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:32:26,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:32:26,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:32:26,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:32:26,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:32:26,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:32:26,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:32:26,992 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:32:26,993 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:32:26,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:32:26,993 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_0175ea88-0b1c-4c49-b664-e93806bce914/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2022-11-20 09:32:27,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:32:27,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:32:27,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:32:27,395 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:32:27,395 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:32:27,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-20 09:32:30,493 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:32:31,196 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:32:31,196 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-20 09:32:31,247 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/data/d92c8b720/4568a60e39a44431a855915b84200f21/FLAGc849b3054 [2022-11-20 09:32:31,265 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/data/d92c8b720/4568a60e39a44431a855915b84200f21 [2022-11-20 09:32:31,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:32:31,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:32:31,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:32:31,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:32:31,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:32:31,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:32:31" (1/1) ... [2022-11-20 09:32:31,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d5f5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:31, skipping insertion in model container [2022-11-20 09:32:31,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:32:31" (1/1) ... [2022-11-20 09:32:31,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:32:31,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:32:32,001 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 09:32:32,010 INFO L158 Benchmark]: Toolchain (without parser) took 739.83ms. Allocated memory is still 153.1MB. Free memory was 114.3MB in the beginning and 101.4MB in the end (delta: 12.9MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2022-11-20 09:32:32,010 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:32:32,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 737.78ms. Allocated memory is still 153.1MB. Free memory was 114.0MB in the beginning and 101.4MB in the end (delta: 12.6MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2022-11-20 09:32:32,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 737.78ms. Allocated memory is still 153.1MB. Free memory was 114.0MB in the beginning and 101.4MB in the end (delta: 12.6MB). Peak memory consumption was 63.0MB. 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/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_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/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-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/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_0175ea88-0b1c-4c49-b664-e93806bce914/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 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:32:34,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:32:34,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:32:34,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:32:34,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:32:34,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:32:34,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:32:34,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:32:34,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:32:34,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:32:34,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:32:34,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:32:34,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:32:34,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:32:34,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:32:34,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:32:34,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:32:34,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:32:34,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:32:34,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:32:34,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:32:34,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:32:34,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:32:34,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:32:34,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:32:34,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:32:34,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:32:34,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:32:34,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:32:34,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:32:34,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:32:34,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:32:34,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:32:34,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:32:34,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:32:34,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:32:34,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:32:34,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:32:34,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:32:34,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:32:34,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:32:34,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:32:34,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:32:34,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:32:34,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:32:34,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:32:34,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:32:34,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:32:34,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:32:34,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:32:34,675 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:32:34,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:32:34,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:32:34,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:32:34,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:32:34,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:32:34,677 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:32:34,677 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:32:34,677 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:32:34,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:32:34,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:32:34,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:32:34,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:32:34,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:32:34,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:32:34,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:32:34,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:32:34,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:32:34,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:32:34,680 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:32:34,680 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:32:34,681 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:32:34,681 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:32:34,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:32:34,681 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:32:34,682 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_0175ea88-0b1c-4c49-b664-e93806bce914/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2022-11-20 09:32:35,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:32:35,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:32:35,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:32:35,156 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:32:35,156 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:32:35,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-20 09:32:38,455 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:32:39,192 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:32:39,194 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-20 09:32:39,249 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/data/ae0670b6a/5d6b213292ee40c795265efc36c8cd30/FLAGb3a207178 [2022-11-20 09:32:39,263 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/data/ae0670b6a/5d6b213292ee40c795265efc36c8cd30 [2022-11-20 09:32:39,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:32:39,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:32:39,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:32:39,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:32:39,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:32:39,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:32:39" (1/1) ... [2022-11-20 09:32:39,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32116d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:39, skipping insertion in model container [2022-11-20 09:32:39,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:32:39" (1/1) ... [2022-11-20 09:32:39,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:32:39,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:32:42,319 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-20 09:32:42,330 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-20 09:32:42,331 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-20 09:32:42,332 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-20 09:32:42,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:32:42,422 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:32:42,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:32:42,854 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-20 09:32:42,855 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-20 09:32:42,856 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-20 09:32:42,856 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-20 09:32:42,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:32:42,875 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:32:43,336 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2022-11-20 09:32:43,337 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2022-11-20 09:32:43,338 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2022-11-20 09:32:43,338 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2022-11-20 09:32:43,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:32:43,596 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:32:43,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43 WrapperNode [2022-11-20 09:32:43,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:32:43,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:32:43,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:32:43,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:32:43,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:43,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:43,991 INFO L138 Inliner]: procedures = 441, calls = 1759, calls flagged for inlining = 206, calls inlined = 187, statements flattened = 4489 [2022-11-20 09:32:43,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:32:43,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:32:43,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:32:43,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:32:44,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:44,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:44,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:44,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:44,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:44,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:44,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:44,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:44,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:32:44,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:32:44,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:32:44,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:32:44,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (1/1) ... [2022-11-20 09:32:44,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:32:44,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:32:44,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:32:44,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:32:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-20 09:32:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-20 09:32:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 09:32:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 09:32:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:32:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:32:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2022-11-20 09:32:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2022-11-20 09:32:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 09:32:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 09:32:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:32:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:32:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-20 09:32:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2022-11-20 09:32:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2022-11-20 09:32:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2022-11-20 09:32:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:32:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:32:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 09:32:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 09:32:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 09:32:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 09:32:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 09:32:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 09:32:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 09:32:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:32:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:32:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 09:32:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 09:32:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:32:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:32:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-20 09:32:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-20 09:32:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:32:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:32:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 09:32:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 09:32:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2022-11-20 09:32:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2022-11-20 09:32:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 09:32:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 09:32:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2022-11-20 09:32:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2022-11-20 09:32:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 09:32:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 09:32:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 09:32:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 09:32:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2022-11-20 09:32:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2022-11-20 09:32:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 09:32:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 09:32:44,402 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 09:32:44,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 09:32:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 09:32:44,403 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 09:32:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 09:32:44,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 09:32:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 09:32:44,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 09:32:44,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 09:32:44,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 09:32:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 09:32:44,443 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 09:32:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:32:44,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:32:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:32:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 09:32:44,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 09:32:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:32:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:32:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:32:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 09:32:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 09:32:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:32:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:32:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:32:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:32:44,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:32:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:32:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-20 09:32:44,445 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-20 09:32:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-20 09:32:44,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2022-11-20 09:32:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 09:32:44,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 09:32:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 09:32:44,445 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 09:32:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 09:32:44,445 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 09:32:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 09:32:44,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 09:32:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 09:32:44,446 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 09:32:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:32:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:32:44,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:32:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 09:32:44,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 09:32:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:32:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:32:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:32:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:32:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:32:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:32:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:32:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:32:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:32:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:32:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 09:32:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 09:32:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2022-11-20 09:32:44,447 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2022-11-20 09:32:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 09:32:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 09:32:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:32:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:32:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 09:32:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 09:32:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 09:32:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 09:32:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2022-11-20 09:32:44,448 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2022-11-20 09:32:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 09:32:44,449 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 09:32:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 09:32:44,449 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 09:32:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:32:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2022-11-20 09:32:44,449 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2022-11-20 09:32:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:32:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 09:32:44,449 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 09:32:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:32:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:32:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:32:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:32:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:32:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 09:32:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 09:32:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 09:32:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~TO~VOID [2022-11-20 09:32:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 09:32:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 09:32:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 09:32:44,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 09:32:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 09:32:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 09:32:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 09:32:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 09:32:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:32:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:32:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:32:44,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:32:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:32:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:32:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:32:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:32:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:32:44,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:32:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2022-11-20 09:32:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2022-11-20 09:32:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2022-11-20 09:32:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2022-11-20 09:32:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 09:32:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 09:32:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 09:32:44,455 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 09:32:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 09:32:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 09:32:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 09:32:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 09:32:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2022-11-20 09:32:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2022-11-20 09:32:45,316 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:32:45,335 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:32:45,569 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:33:11,660 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 09:33:11,842 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:33:11,869 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:33:11,871 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:33:11,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:11 BoogieIcfgContainer [2022-11-20 09:33:11,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:33:11,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:33:11,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:33:11,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:33:11,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:32:39" (1/3) ... [2022-11-20 09:33:11,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d588471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:11, skipping insertion in model container [2022-11-20 09:33:11,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:32:43" (2/3) ... [2022-11-20 09:33:11,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d588471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:33:11, skipping insertion in model container [2022-11-20 09:33:11,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:33:11" (3/3) ... [2022-11-20 09:33:11,886 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2022-11-20 09:33:11,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:33:11,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 09:33:12,013 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:33:12,026 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;@d0a58d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:33:12,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 09:33:12,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 1555 states, 1013 states have (on average 1.2537018756169793) internal successors, (1270), 1038 states have internal predecessors, (1270), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) [2022-11-20 09:33:12,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-20 09:33:12,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:12,077 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:12,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:12,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:12,088 INFO L85 PathProgramCache]: Analyzing trace with hash -783949461, now seen corresponding path program 1 times [2022-11-20 09:33:12,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:12,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064213444] [2022-11-20 09:33:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:12,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:12,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:12,120 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:12,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:33:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:13,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:13,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:13,385 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-20 09:33:13,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:13,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:13,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064213444] [2022-11-20 09:33:13,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064213444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:13,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:13,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:13,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707429762] [2022-11-20 09:33:13,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:13,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:13,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:13,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:13,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:13,497 INFO L87 Difference]: Start difference. First operand has 1555 states, 1013 states have (on average 1.2537018756169793) internal successors, (1270), 1038 states have internal predecessors, (1270), 469 states have call successors, (469), 71 states have call predecessors, (469), 70 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 09:33:14,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:14,038 INFO L93 Difference]: Finished difference Result 4528 states and 6545 transitions. [2022-11-20 09:33:14,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:14,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2022-11-20 09:33:14,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:14,102 INFO L225 Difference]: With dead ends: 4528 [2022-11-20 09:33:14,102 INFO L226 Difference]: Without dead ends: 2982 [2022-11-20 09:33:14,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:14,130 INFO L413 NwaCegarLoop]: 2617 mSDtfsCounter, 2052 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:14,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 4747 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:33:14,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2022-11-20 09:33:14,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2978. [2022-11-20 09:33:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 1955 states have (on average 1.2398976982097187) internal successors, (2424), 2004 states have internal predecessors, (2424), 884 states have call successors, (884), 137 states have call predecessors, (884), 136 states have return successors, (880), 858 states have call predecessors, (880), 880 states have call successors, (880) [2022-11-20 09:33:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4188 transitions. [2022-11-20 09:33:14,550 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 4188 transitions. Word has length 105 [2022-11-20 09:33:14,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:14,552 INFO L495 AbstractCegarLoop]: Abstraction has 2978 states and 4188 transitions. [2022-11-20 09:33:14,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 09:33:14,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 4188 transitions. [2022-11-20 09:33:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-20 09:33:14,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:14,563 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:14,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 09:33:14,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:14,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash -323473517, now seen corresponding path program 1 times [2022-11-20 09:33:14,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:14,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363505283] [2022-11-20 09:33:14,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:14,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:14,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:14,791 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:14,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:33:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:15,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:15,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-20 09:33:15,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:15,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:15,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363505283] [2022-11-20 09:33:15,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363505283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:15,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:15,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476857417] [2022-11-20 09:33:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:15,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:15,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:15,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:15,921 INFO L87 Difference]: Start difference. First operand 2978 states and 4188 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:33:16,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:16,430 INFO L93 Difference]: Finished difference Result 8370 states and 11774 transitions. [2022-11-20 09:33:16,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:16,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2022-11-20 09:33:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:16,531 INFO L225 Difference]: With dead ends: 8370 [2022-11-20 09:33:16,532 INFO L226 Difference]: Without dead ends: 5411 [2022-11-20 09:33:16,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:16,551 INFO L413 NwaCegarLoop]: 2579 mSDtfsCounter, 1799 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1799 SdHoareTripleChecker+Valid, 4685 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:16,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1799 Valid, 4685 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:33:16,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5411 states. [2022-11-20 09:33:16,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5411 to 5379. [2022-11-20 09:33:16,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 3500 states have (on average 1.2362857142857142) internal successors, (4327), 3576 states have internal predecessors, (4327), 1613 states have call successors, (1613), 270 states have call predecessors, (1613), 263 states have return successors, (1621), 1568 states have call predecessors, (1621), 1609 states have call successors, (1621) [2022-11-20 09:33:17,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 7561 transitions. [2022-11-20 09:33:17,032 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 7561 transitions. Word has length 113 [2022-11-20 09:33:17,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:17,033 INFO L495 AbstractCegarLoop]: Abstraction has 5379 states and 7561 transitions. [2022-11-20 09:33:17,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 09:33:17,034 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 7561 transitions. [2022-11-20 09:33:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 09:33:17,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:17,045 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:17,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:17,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:17,269 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:17,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:17,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1427770684, now seen corresponding path program 1 times [2022-11-20 09:33:17,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:17,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913992248] [2022-11-20 09:33:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:17,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:17,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:17,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:17,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:33:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:18,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:18,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:18,649 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-20 09:33:18,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:18,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:18,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913992248] [2022-11-20 09:33:18,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913992248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:18,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:18,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:18,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442349087] [2022-11-20 09:33:18,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:18,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:18,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:18,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:18,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:18,656 INFO L87 Difference]: Start difference. First operand 5379 states and 7561 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, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 09:33:19,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:19,385 INFO L93 Difference]: Finished difference Result 10725 states and 15077 transitions. [2022-11-20 09:33:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:19,385 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, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 116 [2022-11-20 09:33:19,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:19,431 INFO L225 Difference]: With dead ends: 10725 [2022-11-20 09:33:19,432 INFO L226 Difference]: Without dead ends: 5365 [2022-11-20 09:33:19,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:19,468 INFO L413 NwaCegarLoop]: 2576 mSDtfsCounter, 1459 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 4677 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:19,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 4677 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:33:19,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2022-11-20 09:33:19,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 5335. [2022-11-20 09:33:19,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 3436 states have (on average 1.230791618160652) internal successors, (4229), 3512 states have internal predecessors, (4229), 1611 states have call successors, (1611), 291 states have call predecessors, (1611), 285 states have return successors, (1613), 1565 states have call predecessors, (1613), 1607 states have call successors, (1613) [2022-11-20 09:33:19,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 7453 transitions. [2022-11-20 09:33:19,953 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 7453 transitions. Word has length 116 [2022-11-20 09:33:19,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:19,954 INFO L495 AbstractCegarLoop]: Abstraction has 5335 states and 7453 transitions. [2022-11-20 09:33:19,955 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, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-20 09:33:19,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 7453 transitions. [2022-11-20 09:33:19,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-20 09:33:19,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:19,960 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:19,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:20,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:20,186 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:20,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:20,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1075495354, now seen corresponding path program 1 times [2022-11-20 09:33:20,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:20,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266477187] [2022-11-20 09:33:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:20,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:20,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:20,191 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:20,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 09:33:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:21,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:21,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-11-20 09:33:21,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:21,293 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:21,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266477187] [2022-11-20 09:33:21,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266477187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:21,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:21,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:21,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979529620] [2022-11-20 09:33:21,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:21,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:21,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:21,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:21,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:21,296 INFO L87 Difference]: Start difference. First operand 5335 states and 7453 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 09:33:22,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:22,085 INFO L93 Difference]: Finished difference Result 14020 states and 19569 transitions. [2022-11-20 09:33:22,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:22,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 133 [2022-11-20 09:33:22,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:22,134 INFO L225 Difference]: With dead ends: 14020 [2022-11-20 09:33:22,134 INFO L226 Difference]: Without dead ends: 8704 [2022-11-20 09:33:22,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:22,154 INFO L413 NwaCegarLoop]: 2561 mSDtfsCounter, 1809 mSDsluCounter, 2103 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 4664 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:22,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 4664 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:33:22,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8704 states. [2022-11-20 09:33:22,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8704 to 8673. [2022-11-20 09:33:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8673 states, 5563 states have (on average 1.2236203487326982) internal successors, (6807), 5700 states have internal predecessors, (6807), 2630 states have call successors, (2630), 490 states have call predecessors, (2630), 477 states have return successors, (2638), 2533 states have call predecessors, (2638), 2626 states have call successors, (2638) [2022-11-20 09:33:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8673 states to 8673 states and 12075 transitions. [2022-11-20 09:33:22,937 INFO L78 Accepts]: Start accepts. Automaton has 8673 states and 12075 transitions. Word has length 133 [2022-11-20 09:33:22,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:22,939 INFO L495 AbstractCegarLoop]: Abstraction has 8673 states and 12075 transitions. [2022-11-20 09:33:22,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-20 09:33:22,939 INFO L276 IsEmpty]: Start isEmpty. Operand 8673 states and 12075 transitions. [2022-11-20 09:33:22,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-20 09:33:22,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:22,943 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:22,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:23,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:23,166 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:23,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:23,167 INFO L85 PathProgramCache]: Analyzing trace with hash 527850235, now seen corresponding path program 1 times [2022-11-20 09:33:23,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:23,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442420524] [2022-11-20 09:33:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:23,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:23,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:23,184 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:23,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 09:33:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:24,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:24,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-20 09:33:24,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:24,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:24,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442420524] [2022-11-20 09:33:24,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442420524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:24,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:24,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:24,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778143749] [2022-11-20 09:33:24,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:24,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:24,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:24,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:24,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:24,329 INFO L87 Difference]: Start difference. First operand 8673 states and 12075 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 09:33:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:25,398 INFO L93 Difference]: Finished difference Result 23985 states and 33295 transitions. [2022-11-20 09:33:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:25,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2022-11-20 09:33:25,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:25,474 INFO L225 Difference]: With dead ends: 23985 [2022-11-20 09:33:25,474 INFO L226 Difference]: Without dead ends: 15331 [2022-11-20 09:33:25,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:25,506 INFO L413 NwaCegarLoop]: 2977 mSDtfsCounter, 2081 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 5053 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:25,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 5053 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:33:25,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15331 states. [2022-11-20 09:33:26,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15331 to 15290. [2022-11-20 09:33:26,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15290 states, 10023 states have (on average 1.2283747381023646) internal successors, (12312), 10299 states have internal predecessors, (12312), 4420 states have call successors, (4420), 873 states have call predecessors, (4420), 844 states have return successors, (4444), 4210 states have call predecessors, (4444), 4416 states have call successors, (4444) [2022-11-20 09:33:26,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15290 states to 15290 states and 21176 transitions. [2022-11-20 09:33:26,857 INFO L78 Accepts]: Start accepts. Automaton has 15290 states and 21176 transitions. Word has length 144 [2022-11-20 09:33:26,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:26,858 INFO L495 AbstractCegarLoop]: Abstraction has 15290 states and 21176 transitions. [2022-11-20 09:33:26,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 09:33:26,858 INFO L276 IsEmpty]: Start isEmpty. Operand 15290 states and 21176 transitions. [2022-11-20 09:33:26,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 09:33:26,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:26,867 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 09:33:26,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:27,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:27,090 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:27,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:27,090 INFO L85 PathProgramCache]: Analyzing trace with hash -523094357, now seen corresponding path program 1 times [2022-11-20 09:33:27,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:27,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194741273] [2022-11-20 09:33:27,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:27,092 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:27,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:27,094 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:27,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 09:33:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:27,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:27,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:28,082 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-11-20 09:33:28,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:28,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:28,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194741273] [2022-11-20 09:33:28,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194741273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:28,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:28,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:28,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352561305] [2022-11-20 09:33:28,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:28,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:28,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:28,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:28,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:28,085 INFO L87 Difference]: Start difference. First operand 15290 states and 21176 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 09:33:30,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:30,297 INFO L93 Difference]: Finished difference Result 43762 states and 60719 transitions. [2022-11-20 09:33:30,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:30,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2022-11-20 09:33:30,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:30,484 INFO L225 Difference]: With dead ends: 43762 [2022-11-20 09:33:30,484 INFO L226 Difference]: Without dead ends: 29030 [2022-11-20 09:33:30,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:30,565 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 2016 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 5649 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:30,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 5649 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:33:30,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29030 states. [2022-11-20 09:33:32,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29030 to 29026. [2022-11-20 09:33:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29026 states, 19059 states have (on average 1.228868251219896) internal successors, (23421), 19551 states have internal predecessors, (23421), 8367 states have call successors, (8367), 1646 states have call predecessors, (8367), 1597 states have return successors, (8419), 8013 states have call predecessors, (8419), 8363 states have call successors, (8419) [2022-11-20 09:33:32,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29026 states to 29026 states and 40207 transitions. [2022-11-20 09:33:32,835 INFO L78 Accepts]: Start accepts. Automaton has 29026 states and 40207 transitions. Word has length 161 [2022-11-20 09:33:32,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:32,836 INFO L495 AbstractCegarLoop]: Abstraction has 29026 states and 40207 transitions. [2022-11-20 09:33:32,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 09:33:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 29026 states and 40207 transitions. [2022-11-20 09:33:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-20 09:33:32,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:32,840 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 09:33:32,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:33,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:33,062 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:33,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:33,062 INFO L85 PathProgramCache]: Analyzing trace with hash -382545747, now seen corresponding path program 1 times [2022-11-20 09:33:33,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:33,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79873594] [2022-11-20 09:33:33,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:33,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:33,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:33,066 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:33,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 09:33:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:34,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:33:34,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:33:35,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:35,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:35,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79873594] [2022-11-20 09:33:35,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79873594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:35,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:35,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:33:35,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115974419] [2022-11-20 09:33:35,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:35,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:33:35,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:35,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:33:35,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:33:35,005 INFO L87 Difference]: Start difference. First operand 29026 states and 40207 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 09:33:37,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:37,607 INFO L93 Difference]: Finished difference Result 29032 states and 40212 transitions. [2022-11-20 09:33:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:33:37,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 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 161 [2022-11-20 09:33:37,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:37,771 INFO L225 Difference]: With dead ends: 29032 [2022-11-20 09:33:37,772 INFO L226 Difference]: Without dead ends: 29030 [2022-11-20 09:33:37,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:33:37,791 INFO L413 NwaCegarLoop]: 2163 mSDtfsCounter, 2091 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 6474 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:37,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 6474 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:33:37,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29030 states. [2022-11-20 09:33:40,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29030 to 29030. [2022-11-20 09:33:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29030 states, 19062 states have (on average 1.2288322316650928) internal successors, (23424), 19554 states have internal predecessors, (23424), 8367 states have call successors, (8367), 1647 states have call predecessors, (8367), 1598 states have return successors, (8419), 8013 states have call predecessors, (8419), 8363 states have call successors, (8419) [2022-11-20 09:33:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29030 states to 29030 states and 40210 transitions. [2022-11-20 09:33:40,820 INFO L78 Accepts]: Start accepts. Automaton has 29030 states and 40210 transitions. Word has length 161 [2022-11-20 09:33:40,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:40,821 INFO L495 AbstractCegarLoop]: Abstraction has 29030 states and 40210 transitions. [2022-11-20 09:33:40,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-20 09:33:40,821 INFO L276 IsEmpty]: Start isEmpty. Operand 29030 states and 40210 transitions. [2022-11-20 09:33:40,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-20 09:33:40,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:40,826 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:40,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:41,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:41,049 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:41,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:41,049 INFO L85 PathProgramCache]: Analyzing trace with hash 982335807, now seen corresponding path program 1 times [2022-11-20 09:33:41,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:41,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435519372] [2022-11-20 09:33:41,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:41,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:41,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:41,053 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:41,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 09:33:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:42,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:42,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-20 09:33:42,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:42,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:42,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435519372] [2022-11-20 09:33:42,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435519372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:42,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:42,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:42,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735524303] [2022-11-20 09:33:42,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:42,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:42,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:42,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:42,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:42,315 INFO L87 Difference]: Start difference. First operand 29030 states and 40210 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 09:33:46,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:46,763 INFO L93 Difference]: Finished difference Result 85854 states and 118995 transitions. [2022-11-20 09:33:46,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:46,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2022-11-20 09:33:46,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:47,010 INFO L225 Difference]: With dead ends: 85854 [2022-11-20 09:33:47,010 INFO L226 Difference]: Without dead ends: 56843 [2022-11-20 09:33:47,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:47,116 INFO L413 NwaCegarLoop]: 2930 mSDtfsCounter, 2114 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 5082 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:47,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2114 Valid, 5082 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 09:33:47,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56843 states. [2022-11-20 09:33:52,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56843 to 56779. [2022-11-20 09:33:52,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56779 states, 37292 states have (on average 1.228520862383353) internal successors, (45814), 38286 states have internal predecessors, (45814), 16358 states have call successors, (16358), 3223 states have call predecessors, (16358), 3126 states have return successors, (16466), 15637 states have call predecessors, (16466), 16354 states have call successors, (16466) [2022-11-20 09:33:52,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56779 states to 56779 states and 78638 transitions. [2022-11-20 09:33:52,957 INFO L78 Accepts]: Start accepts. Automaton has 56779 states and 78638 transitions. Word has length 167 [2022-11-20 09:33:52,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:52,957 INFO L495 AbstractCegarLoop]: Abstraction has 56779 states and 78638 transitions. [2022-11-20 09:33:52,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 09:33:52,958 INFO L276 IsEmpty]: Start isEmpty. Operand 56779 states and 78638 transitions. [2022-11-20 09:33:52,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-20 09:33:52,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:52,960 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2022-11-20 09:33:52,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:53,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:53,161 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:53,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:53,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1165937546, now seen corresponding path program 1 times [2022-11-20 09:33:53,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:53,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1708341629] [2022-11-20 09:33:53,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:53,163 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:33:53,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:53,168 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:33:53,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0175ea88-0b1c-4c49-b664-e93806bce914/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 09:33:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:54,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:33:54,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:55,018 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:33:55,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:33:55,568 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-11-20 09:33:55,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:55,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1708341629] [2022-11-20 09:33:55,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1708341629] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:33:55,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:33:55,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:33:55,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282513663] [2022-11-20 09:33:55,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:55,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:33:55,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:55,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:33:55,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:33:55,571 INFO L87 Difference]: Start difference. First operand 56779 states and 78638 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 09:34:00,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:00,227 INFO L93 Difference]: Finished difference Result 56785 states and 78643 transitions. [2022-11-20 09:34:00,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:34:00,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 166 [2022-11-20 09:34:00,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:00,415 INFO L225 Difference]: With dead ends: 56785 [2022-11-20 09:34:00,415 INFO L226 Difference]: Without dead ends: 56783 [2022-11-20 09:34:00,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:34:00,432 INFO L413 NwaCegarLoop]: 2166 mSDtfsCounter, 2104 mSDsluCounter, 4310 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 6476 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:00,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2117 Valid, 6476 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:34:00,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56783 states.