./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/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_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/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_78101506-b194-46a0-ab2e-27d5ea6e44be/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 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:55:45,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:55:45,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:55:45,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:55:45,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:55:45,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:55:45,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:55:45,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:55:45,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:55:45,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:55:45,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:55:45,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:55:45,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:55:45,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:55:45,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:55:45,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:55:45,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:55:45,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:55:45,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:55:45,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:55:45,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:55:45,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:55:45,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:55:45,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:55:45,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:55:45,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:55:45,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:55:45,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:55:45,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:55:45,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:55:45,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:55:45,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:55:45,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:55:45,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:55:45,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:55:45,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:55:45,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:55:45,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:55:45,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:55:45,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:55:45,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:55:45,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:55:45,244 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:55:45,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:55:45,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:55:45,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:55:45,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:55:45,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:55:45,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:55:45,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:55:45,247 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:55:45,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:55:45,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:55:45,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:55:45,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:55:45,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:55:45,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:55:45,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:55:45,249 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:55:45,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:55:45,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:55:45,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:55:45,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:55:45,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:55:45,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:55:45,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:55:45,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:55:45,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:55:45,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:55:45,252 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:55:45,252 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:55:45,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:55:45,252 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_78101506-b194-46a0-ab2e-27d5ea6e44be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2022-11-20 11:55:45,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:55:45,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:55:45,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:55:45,614 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:55:45,614 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:55:45,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-11-20 11:55:48,758 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:55:49,469 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:55:49,470 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-11-20 11:55:49,537 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/data/478fb5518/5f09a0d95c894f5c962c7dd2747064a8/FLAGca85fff9f [2022-11-20 11:55:49,556 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/data/478fb5518/5f09a0d95c894f5c962c7dd2747064a8 [2022-11-20 11:55:49,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:55:49,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:55:49,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:55:49,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:55:49,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:55:49,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:55:49" (1/1) ... [2022-11-20 11:55:49,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11007f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:49, skipping insertion in model container [2022-11-20 11:55:49,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:55:49" (1/1) ... [2022-11-20 11:55:49,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:55:49,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:55:50,438 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 11:55:50,448 INFO L158 Benchmark]: Toolchain (without parser) took 887.16ms. Allocated memory is still 197.1MB. Free memory was 151.3MB in the beginning and 138.7MB in the end (delta: 12.7MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2022-11-20 11:55:50,449 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 134.2MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:55:50,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 884.66ms. Allocated memory is still 197.1MB. Free memory was 151.3MB in the beginning and 138.7MB in the end (delta: 12.7MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2022-11-20 11:55:50,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 134.2MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 884.66ms. Allocated memory is still 197.1MB. Free memory was 151.3MB in the beginning and 138.7MB in the end (delta: 12.7MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/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_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/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_78101506-b194-46a0-ab2e-27d5ea6e44be/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 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:55:52,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:55:52,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:55:52,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:55:52,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:55:52,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:55:52,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:55:52,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:55:52,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:55:52,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:55:52,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:55:52,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:55:52,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:55:52,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:55:52,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:55:52,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:55:52,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:55:52,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:55:52,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:55:52,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:55:52,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:55:52,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:55:52,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:55:52,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:55:52,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:55:52,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:55:52,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:55:52,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:55:52,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:55:52,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:55:52,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:55:52,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:55:52,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:55:53,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:55:53,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:55:53,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:55:53,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:55:53,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:55:53,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:55:53,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:55:53,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:55:53,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:55:53,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:55:53,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:55:53,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:55:53,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:55:53,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:55:53,070 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:55:53,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:55:53,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:55:53,071 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:55:53,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:55:53,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:55:53,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:55:53,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:55:53,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:55:53,072 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:55:53,072 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:55:53,073 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:55:53,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:55:53,073 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:55:53,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:55:53,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:55:53,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:55:53,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:55:53,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:55:53,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:55:53,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:55:53,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:55:53,075 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:55:53,075 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:55:53,075 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:55:53,076 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:55:53,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:55:53,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:55:53,076 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_78101506-b194-46a0-ab2e-27d5ea6e44be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2022-11-20 11:55:53,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:55:53,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:55:53,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:55:53,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:55:53,468 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:55:53,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-11-20 11:55:56,656 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:55:57,395 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:55:57,396 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-11-20 11:55:57,459 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/data/0d33e0df9/057d0eacfda6445386e946f117e533b2/FLAGac76e0173 [2022-11-20 11:55:57,485 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/data/0d33e0df9/057d0eacfda6445386e946f117e533b2 [2022-11-20 11:55:57,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:55:57,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:55:57,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:55:57,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:55:57,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:55:57,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:55:57" (1/1) ... [2022-11-20 11:55:57,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f12a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:55:57, skipping insertion in model container [2022-11-20 11:55:57,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:55:57" (1/1) ... [2022-11-20 11:55:57,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:55:57,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:56:00,605 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2022-11-20 11:56:00,609 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2022-11-20 11:56:00,610 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2022-11-20 11:56:00,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2022-11-20 11:56:00,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:56:00,731 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:56:00,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:56:01,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2022-11-20 11:56:01,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2022-11-20 11:56:01,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2022-11-20 11:56:01,291 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2022-11-20 11:56:01,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:56:01,344 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:56:01,832 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2022-11-20 11:56:01,833 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2022-11-20 11:56:01,834 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2022-11-20 11:56:01,835 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2022-11-20 11:56:01,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:56:02,115 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:56:02,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02 WrapperNode [2022-11-20 11:56:02,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:56:02,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:56:02,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:56:02,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:56:02,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,450 INFO L138 Inliner]: procedures = 466, calls = 2191, calls flagged for inlining = 220, calls inlined = 194, statements flattened = 4515 [2022-11-20 11:56:02,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:56:02,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:56:02,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:56:02,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:56:02,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,719 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:56:02,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:56:02,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:56:02,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:56:02,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (1/1) ... [2022-11-20 11:56:02,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:56:02,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:56:02,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:56:02,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:56:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-20 11:56:02,873 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-20 11:56:02,873 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 11:56:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 11:56:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:56:02,874 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:56:02,874 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_begin [2022-11-20 11:56:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_begin [2022-11-20 11:56:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 11:56:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 11:56:02,875 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 11:56:02,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 11:56:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:56:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:56:02,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:56:02,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:56:02,877 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 11:56:02,877 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 11:56:02,878 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 11:56:02,878 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 11:56:02,879 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-20 11:56:02,879 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-20 11:56:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2022-11-20 11:56:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2022-11-20 11:56:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 11:56:02,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 11:56:02,880 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:56:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:56:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 11:56:02,881 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 11:56:02,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 11:56:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:56:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:56:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 11:56:02,882 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 11:56:02,882 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 11:56:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 11:56:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 11:56:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 11:56:02,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:56:02,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:56:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 11:56:02,884 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 11:56:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 11:56:02,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 11:56:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:56:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:56:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:56:02,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:56:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:56:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 11:56:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 11:56:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 11:56:02,886 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 11:56:02,886 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 11:56:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 11:56:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:56:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:56:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure epic_open [2022-11-20 11:56:02,887 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_open [2022-11-20 11:56:02,887 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-20 11:56:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-20 11:56:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 11:56:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 11:56:02,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:56:02,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:56:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 11:56:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 11:56:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 11:56:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 11:56:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 11:56:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 11:56:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 11:56:02,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 11:56:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 11:56:02,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 11:56:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure epic_restart [2022-11-20 11:56:02,892 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_restart [2022-11-20 11:56:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2022-11-20 11:56:02,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2022-11-20 11:56:02,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:56:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:56:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:56:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 11:56:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 11:56:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 11:56:02,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 11:56:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:56:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-20 11:56:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-20 11:56:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:56:02,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:56:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:56:02,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:56:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:56:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:56:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:56:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-20 11:56:02,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-20 11:56:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:56:02,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:56:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:56:02,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_epic_private [2022-11-20 11:56:02,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_epic_private [2022-11-20 11:56:02,903 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-20 11:56:02,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-20 11:56:02,903 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 11:56:02,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 11:56:02,904 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-20 11:56:02,905 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-20 11:56:02,906 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:56:02,906 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:56:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure epic_remove_one [2022-11-20 11:56:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_remove_one [2022-11-20 11:56:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 11:56:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 11:56:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 11:56:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 11:56:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_napi_lock_of_epic_private [2022-11-20 11:56:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_napi_lock_of_epic_private [2022-11-20 11:56:02,912 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 11:56:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 11:56:02,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:56:02,912 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 11:56:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 11:56:02,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:56:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:56:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:56:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:56:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:56:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:56:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:56:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:56:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:56:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:56:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:56:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:56:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure epic_rx [2022-11-20 11:56:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_rx [2022-11-20 11:56:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_complete [2022-11-20 11:56:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_complete [2022-11-20 11:56:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 11:56:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 11:56:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_napi_lock_of_epic_private [2022-11-20 11:56:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_napi_lock_of_epic_private [2022-11-20 11:56:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 11:56:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 11:56:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:56:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:56:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 11:56:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 11:56:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 11:56:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 11:56:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 11:56:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 11:56:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:56:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2022-11-20 11:56:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2022-11-20 11:56:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure epic_resume [2022-11-20 11:56:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_resume [2022-11-20 11:56:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 11:56:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 11:56:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:56:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure epic_tx_timeout [2022-11-20 11:56:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_tx_timeout [2022-11-20 11:56:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 11:56:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 11:56:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:56:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:56:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:56:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:56:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:56:02,919 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 11:56:02,919 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 11:56:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 11:56:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 11:56:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:56:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:56:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-20 11:56:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-20 11:56:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 11:56:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 11:56:02,921 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 11:56:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 11:56:02,921 INFO L130 BoogieDeclarations]: Found specification of procedure epic_close [2022-11-20 11:56:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_close [2022-11-20 11:56:02,921 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:56:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:56:02,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:56:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:56:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:56:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:56:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:56:02,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:56:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 11:56:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 11:56:02,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_epic_private [2022-11-20 11:56:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_epic_private [2022-11-20 11:56:02,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:56:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:56:02,926 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 11:56:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 11:56:02,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 11:56:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 11:56:02,927 INFO L130 BoogieDeclarations]: Found specification of procedure epic_pause [2022-11-20 11:56:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_pause [2022-11-20 11:56:03,945 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:56:03,962 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:56:13,835 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:56:41,736 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 11:56:42,031 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:56:42,048 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:56:42,049 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:56:42,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:56:42 BoogieIcfgContainer [2022-11-20 11:56:42,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:56:42,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:56:42,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:56:42,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:56:42,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:55:57" (1/3) ... [2022-11-20 11:56:42,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f5aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:56:42, skipping insertion in model container [2022-11-20 11:56:42,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:02" (2/3) ... [2022-11-20 11:56:42,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f5aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:56:42, skipping insertion in model container [2022-11-20 11:56:42,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:56:42" (3/3) ... [2022-11-20 11:56:42,062 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-11-20 11:56:42,083 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:56:42,083 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 11:56:42,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:56:42,212 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;@1eaaaa3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:56:42,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 11:56:42,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 1625 states, 1095 states have (on average 1.2593607305936072) internal successors, (1379), 1129 states have internal predecessors, (1379), 441 states have call successors, (441), 87 states have call predecessors, (441), 86 states have return successors, (435), 430 states have call predecessors, (435), 435 states have call successors, (435) [2022-11-20 11:56:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-20 11:56:42,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:42,274 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:42,274 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:56:42,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:42,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1730198645, now seen corresponding path program 1 times [2022-11-20 11:56:42,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:42,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832790078] [2022-11-20 11:56:42,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:42,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:42,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:42,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:42,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 11:56:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:44,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 1532 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:56:44,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:44,264 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 11:56:44,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:44,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:44,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832790078] [2022-11-20 11:56:44,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832790078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:44,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:44,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:56:44,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197237869] [2022-11-20 11:56:44,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:44,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:56:44,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:44,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:56:44,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:56:44,315 INFO L87 Difference]: Start difference. First operand has 1625 states, 1095 states have (on average 1.2593607305936072) internal successors, (1379), 1129 states have internal predecessors, (1379), 441 states have call successors, (441), 87 states have call predecessors, (441), 86 states have return successors, (435), 430 states have call predecessors, (435), 435 states have call successors, (435) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 11:56:44,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:44,958 INFO L93 Difference]: Finished difference Result 4734 states and 6664 transitions. [2022-11-20 11:56:44,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:56:44,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 127 [2022-11-20 11:56:44,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:44,997 INFO L225 Difference]: With dead ends: 4734 [2022-11-20 11:56:44,997 INFO L226 Difference]: Without dead ends: 3122 [2022-11-20 11:56:45,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:56:45,024 INFO L413 NwaCegarLoop]: 2647 mSDtfsCounter, 2108 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2108 SdHoareTripleChecker+Valid, 4835 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:45,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2108 Valid, 4835 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:56:45,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2022-11-20 11:56:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 3118. [2022-11-20 11:56:45,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 2119 states have (on average 1.2505899008966495) internal successors, (2650), 2186 states have internal predecessors, (2650), 828 states have call successors, (828), 169 states have call predecessors, (828), 168 states have return successors, (824), 814 states have call predecessors, (824), 824 states have call successors, (824) [2022-11-20 11:56:45,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 4302 transitions. [2022-11-20 11:56:45,346 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 4302 transitions. Word has length 127 [2022-11-20 11:56:45,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:45,347 INFO L495 AbstractCegarLoop]: Abstraction has 3118 states and 4302 transitions. [2022-11-20 11:56:45,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 11:56:45,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 4302 transitions. [2022-11-20 11:56:45,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-20 11:56:45,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:45,355 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:45,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:45,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:45,579 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:56:45,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:45,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1974156249, now seen corresponding path program 1 times [2022-11-20 11:56:45,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:45,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2116191540] [2022-11-20 11:56:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:45,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:45,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:45,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:45,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 11:56:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:47,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:56:47,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:47,620 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 11:56:47,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:47,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:47,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2116191540] [2022-11-20 11:56:47,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2116191540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:47,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:47,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:56:47,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028724992] [2022-11-20 11:56:47,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:47,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:56:47,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:47,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:56:47,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:56:47,626 INFO L87 Difference]: Start difference. First operand 3118 states and 4302 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 11:56:48,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:48,317 INFO L93 Difference]: Finished difference Result 8780 states and 12122 transitions. [2022-11-20 11:56:48,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:56:48,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 136 [2022-11-20 11:56:48,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:48,356 INFO L225 Difference]: With dead ends: 8780 [2022-11-20 11:56:48,356 INFO L226 Difference]: Without dead ends: 5685 [2022-11-20 11:56:48,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:56:48,372 INFO L413 NwaCegarLoop]: 2602 mSDtfsCounter, 1833 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1833 SdHoareTripleChecker+Valid, 4740 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:48,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1833 Valid, 4740 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 11:56:48,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5685 states. [2022-11-20 11:56:48,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5685 to 5655. [2022-11-20 11:56:48,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5655 states, 3820 states have (on average 1.25) internal successors, (4775), 3948 states have internal predecessors, (4775), 1515 states have call successors, (1515), 320 states have call predecessors, (1515), 317 states have return successors, (1513), 1482 states have call predecessors, (1513), 1511 states have call successors, (1513) [2022-11-20 11:56:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5655 states to 5655 states and 7803 transitions. [2022-11-20 11:56:48,844 INFO L78 Accepts]: Start accepts. Automaton has 5655 states and 7803 transitions. Word has length 136 [2022-11-20 11:56:48,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:48,845 INFO L495 AbstractCegarLoop]: Abstraction has 5655 states and 7803 transitions. [2022-11-20 11:56:48,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 11:56:48,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5655 states and 7803 transitions. [2022-11-20 11:56:48,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-20 11:56:48,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:48,849 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:48,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:49,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:49,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:56:49,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash 858820904, now seen corresponding path program 1 times [2022-11-20 11:56:49,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:49,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555808178] [2022-11-20 11:56:49,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:49,080 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:49,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:49,083 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:49,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 11:56:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:50,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1612 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:56:50,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-20 11:56:50,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:50,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:50,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555808178] [2022-11-20 11:56:50,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555808178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:50,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:50,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:56:50,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125766047] [2022-11-20 11:56:50,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:50,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:56:50,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:50,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:56:50,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:56:50,823 INFO L87 Difference]: Start difference. First operand 5655 states and 7803 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 11:56:51,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:51,726 INFO L93 Difference]: Finished difference Result 16391 states and 22611 transitions. [2022-11-20 11:56:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:56:51,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2022-11-20 11:56:51,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:51,810 INFO L225 Difference]: With dead ends: 16391 [2022-11-20 11:56:51,810 INFO L226 Difference]: Without dead ends: 10759 [2022-11-20 11:56:51,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:56:51,845 INFO L413 NwaCegarLoop]: 2764 mSDtfsCounter, 2049 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 4910 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:51,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 4910 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:56:51,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10759 states. [2022-11-20 11:56:52,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10759 to 10725. [2022-11-20 11:56:52,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10725 states, 7256 states have (on average 1.2487596471885336) internal successors, (9061), 7500 states have internal predecessors, (9061), 2855 states have call successors, (2855), 622 states have call predecessors, (2855), 611 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-11-20 11:56:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10725 states to 10725 states and 14781 transitions. [2022-11-20 11:56:52,688 INFO L78 Accepts]: Start accepts. Automaton has 10725 states and 14781 transitions. Word has length 142 [2022-11-20 11:56:52,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:52,688 INFO L495 AbstractCegarLoop]: Abstraction has 10725 states and 14781 transitions. [2022-11-20 11:56:52,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 11:56:52,690 INFO L276 IsEmpty]: Start isEmpty. Operand 10725 states and 14781 transitions. [2022-11-20 11:56:52,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 11:56:52,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:52,699 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:52,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:52,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:52,919 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:56:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:52,920 INFO L85 PathProgramCache]: Analyzing trace with hash -970332046, now seen corresponding path program 1 times [2022-11-20 11:56:52,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:52,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904285180] [2022-11-20 11:56:52,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:52,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:52,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:52,925 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:52,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 11:56:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:54,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:56:54,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-11-20 11:56:54,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:54,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:54,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904285180] [2022-11-20 11:56:54,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1904285180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:54,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:54,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:56:54,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601871339] [2022-11-20 11:56:54,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:54,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:56:54,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:54,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:56:54,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:56:54,675 INFO L87 Difference]: Start difference. First operand 10725 states and 14781 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:56:55,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:55,716 INFO L93 Difference]: Finished difference Result 21475 states and 29588 transitions. [2022-11-20 11:56:55,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:56:55,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2022-11-20 11:56:55,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:55,825 INFO L225 Difference]: With dead ends: 21475 [2022-11-20 11:56:55,825 INFO L226 Difference]: Without dead ends: 15957 [2022-11-20 11:56:55,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:56:55,851 INFO L413 NwaCegarLoop]: 4296 mSDtfsCounter, 2072 mSDsluCounter, 2197 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 6493 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:55,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 6493 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:56:55,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15957 states. [2022-11-20 11:56:56,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15957 to 15953. [2022-11-20 11:56:56,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15953 states, 10800 states have (on average 1.2487962962962964) internal successors, (13487), 11159 states have internal predecessors, (13487), 4236 states have call successors, (4236), 930 states have call predecessors, (4236), 914 states have return successors, (4253), 4121 states have call predecessors, (4253), 4232 states have call successors, (4253) [2022-11-20 11:56:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15953 states to 15953 states and 21976 transitions. [2022-11-20 11:56:56,934 INFO L78 Accepts]: Start accepts. Automaton has 15953 states and 21976 transitions. Word has length 183 [2022-11-20 11:56:56,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:56,935 INFO L495 AbstractCegarLoop]: Abstraction has 15953 states and 21976 transitions. [2022-11-20 11:56:56,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-20 11:56:56,936 INFO L276 IsEmpty]: Start isEmpty. Operand 15953 states and 21976 transitions. [2022-11-20 11:56:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 11:56:56,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:56,942 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:56,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -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)] Ended with exit code 0 [2022-11-20 11:56:57,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:57,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:56:57,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:57,162 INFO L85 PathProgramCache]: Analyzing trace with hash -829783436, now seen corresponding path program 1 times [2022-11-20 11:56:57,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:57,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830281070] [2022-11-20 11:56:57,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:57,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:57,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:57,167 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:57,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 11:56:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:58,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:56:58,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-20 11:56:59,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:59,779 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:59,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830281070] [2022-11-20 11:56:59,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830281070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:59,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:59,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:56:59,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052909216] [2022-11-20 11:56:59,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:59,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:56:59,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:59,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:56:59,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:56:59,782 INFO L87 Difference]: Start difference. First operand 15953 states and 21976 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 11:57:00,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:00,874 INFO L93 Difference]: Finished difference Result 15959 states and 21981 transitions. [2022-11-20 11:57:00,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:57:00,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 183 [2022-11-20 11:57:00,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:00,947 INFO L225 Difference]: With dead ends: 15959 [2022-11-20 11:57:00,948 INFO L226 Difference]: Without dead ends: 15957 [2022-11-20 11:57:00,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:57:00,955 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 2143 mSDsluCounter, 4429 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 6650 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:00,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 6650 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:00,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15957 states. [2022-11-20 11:57:02,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15957 to 15957. [2022-11-20 11:57:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15957 states, 10803 states have (on average 1.2487272054059058) internal successors, (13490), 11162 states have internal predecessors, (13490), 4236 states have call successors, (4236), 931 states have call predecessors, (4236), 915 states have return successors, (4253), 4121 states have call predecessors, (4253), 4232 states have call successors, (4253) [2022-11-20 11:57:02,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15957 states to 15957 states and 21979 transitions. [2022-11-20 11:57:02,266 INFO L78 Accepts]: Start accepts. Automaton has 15957 states and 21979 transitions. Word has length 183 [2022-11-20 11:57:02,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:02,267 INFO L495 AbstractCegarLoop]: Abstraction has 15957 states and 21979 transitions. [2022-11-20 11:57:02,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-20 11:57:02,267 INFO L276 IsEmpty]: Start isEmpty. Operand 15957 states and 21979 transitions. [2022-11-20 11:57:02,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-20 11:57:02,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:02,274 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:02,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:02,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:02,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:57:02,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:02,493 INFO L85 PathProgramCache]: Analyzing trace with hash -129843919, now seen corresponding path program 1 times [2022-11-20 11:57:02,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:02,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796923793] [2022-11-20 11:57:02,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:02,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:02,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:02,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:02,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 11:57:04,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:04,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:04,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:05,120 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-20 11:57:05,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-20 11:57:05,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:05,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796923793] [2022-11-20 11:57:05,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796923793] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:57:05,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:57:05,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:57:05,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698010471] [2022-11-20 11:57:05,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:05,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:05,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:05,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:05,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:57:05,716 INFO L87 Difference]: Start difference. First operand 15957 states and 21979 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:57:06,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:06,979 INFO L93 Difference]: Finished difference Result 15963 states and 21984 transitions. [2022-11-20 11:57:06,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:57:06,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 188 [2022-11-20 11:57:06,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:07,051 INFO L225 Difference]: With dead ends: 15963 [2022-11-20 11:57:07,051 INFO L226 Difference]: Without dead ends: 15961 [2022-11-20 11:57:07,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:57:07,059 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2160 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:07,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 6652 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:07,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15961 states. [2022-11-20 11:57:08,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15961 to 15961. [2022-11-20 11:57:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15961 states, 10806 states have (on average 1.2486581528780307) internal successors, (13493), 11165 states have internal predecessors, (13493), 4236 states have call successors, (4236), 932 states have call predecessors, (4236), 916 states have return successors, (4253), 4121 states have call predecessors, (4253), 4232 states have call successors, (4253) [2022-11-20 11:57:08,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15961 states to 15961 states and 21982 transitions. [2022-11-20 11:57:08,479 INFO L78 Accepts]: Start accepts. Automaton has 15961 states and 21982 transitions. Word has length 188 [2022-11-20 11:57:08,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:08,479 INFO L495 AbstractCegarLoop]: Abstraction has 15961 states and 21982 transitions. [2022-11-20 11:57:08,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-20 11:57:08,480 INFO L276 IsEmpty]: Start isEmpty. Operand 15961 states and 21982 transitions. [2022-11-20 11:57:08,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-20 11:57:08,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:08,487 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:08,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:08,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:08,712 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:57:08,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:08,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1564461140, now seen corresponding path program 1 times [2022-11-20 11:57:08,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:08,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98019278] [2022-11-20 11:57:08,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:08,714 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:08,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:08,716 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:08,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 11:57:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:10,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1671 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:10,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2022-11-20 11:57:11,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:11,948 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2022-11-20 11:57:11,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:11,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98019278] [2022-11-20 11:57:11,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98019278] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:57:11,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:57:11,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:57:11,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493030096] [2022-11-20 11:57:11,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:11,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:11,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:11,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:11,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:57:11,952 INFO L87 Difference]: Start difference. First operand 15961 states and 21982 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 11:57:13,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:13,589 INFO L93 Difference]: Finished difference Result 15967 states and 21987 transitions. [2022-11-20 11:57:13,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:57:13,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 193 [2022-11-20 11:57:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:13,654 INFO L225 Difference]: With dead ends: 15967 [2022-11-20 11:57:13,654 INFO L226 Difference]: Without dead ends: 15965 [2022-11-20 11:57:13,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:57:13,661 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2160 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:13,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 6652 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:13,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15965 states. [2022-11-20 11:57:14,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15965 to 15965. [2022-11-20 11:57:14,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15965 states, 10809 states have (on average 1.248589138680729) internal successors, (13496), 11168 states have internal predecessors, (13496), 4236 states have call successors, (4236), 933 states have call predecessors, (4236), 917 states have return successors, (4253), 4121 states have call predecessors, (4253), 4232 states have call successors, (4253) [2022-11-20 11:57:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15965 states to 15965 states and 21985 transitions. [2022-11-20 11:57:15,055 INFO L78 Accepts]: Start accepts. Automaton has 15965 states and 21985 transitions. Word has length 193 [2022-11-20 11:57:15,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:15,056 INFO L495 AbstractCegarLoop]: Abstraction has 15965 states and 21985 transitions. [2022-11-20 11:57:15,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 11:57:15,056 INFO L276 IsEmpty]: Start isEmpty. Operand 15965 states and 21985 transitions. [2022-11-20 11:57:15,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-20 11:57:15,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:15,064 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 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] [2022-11-20 11:57:15,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:15,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:15,279 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:57:15,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1886891311, now seen corresponding path program 1 times [2022-11-20 11:57:15,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:15,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019689076] [2022-11-20 11:57:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:15,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:15,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:15,283 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:15,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 11:57:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:16,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:16,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:17,944 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-11-20 11:57:17,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2022-11-20 11:57:18,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:18,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019689076] [2022-11-20 11:57:18,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019689076] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:57:18,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:57:18,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:57:18,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102771479] [2022-11-20 11:57:18,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:18,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:18,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:18,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:18,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:57:18,454 INFO L87 Difference]: Start difference. First operand 15965 states and 21985 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:57:19,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:19,933 INFO L93 Difference]: Finished difference Result 15971 states and 21990 transitions. [2022-11-20 11:57:19,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:57:19,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 198 [2022-11-20 11:57:19,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:20,016 INFO L225 Difference]: With dead ends: 15971 [2022-11-20 11:57:20,016 INFO L226 Difference]: Without dead ends: 15969 [2022-11-20 11:57:20,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:57:20,025 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2160 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2169 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:20,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2169 Valid, 6652 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:20,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15969 states. [2022-11-20 11:57:22,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15969 to 15969. [2022-11-20 11:57:22,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15969 states, 10812 states have (on average 1.2485201627820939) internal successors, (13499), 11171 states have internal predecessors, (13499), 4236 states have call successors, (4236), 934 states have call predecessors, (4236), 918 states have return successors, (4253), 4121 states have call predecessors, (4253), 4232 states have call successors, (4253) [2022-11-20 11:57:22,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15969 states to 15969 states and 21988 transitions. [2022-11-20 11:57:22,145 INFO L78 Accepts]: Start accepts. Automaton has 15969 states and 21988 transitions. Word has length 198 [2022-11-20 11:57:22,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:22,146 INFO L495 AbstractCegarLoop]: Abstraction has 15969 states and 21988 transitions. [2022-11-20 11:57:22,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 11:57:22,146 INFO L276 IsEmpty]: Start isEmpty. Operand 15969 states and 21988 transitions. [2022-11-20 11:57:22,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-20 11:57:22,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:22,157 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:22,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:22,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:22,379 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:57:22,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:22,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1871232117, now seen corresponding path program 1 times [2022-11-20 11:57:22,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:22,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660413936] [2022-11-20 11:57:22,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:22,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:22,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:22,382 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:22,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 11:57:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:23,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:57:23,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:24,073 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-11-20 11:57:24,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:24,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:24,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660413936] [2022-11-20 11:57:24,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660413936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:24,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:24,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:57:24,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11577133] [2022-11-20 11:57:24,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:24,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:24,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:24,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:24,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:24,078 INFO L87 Difference]: Start difference. First operand 15969 states and 21988 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, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 11:57:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:25,996 INFO L93 Difference]: Finished difference Result 32002 states and 44052 transitions. [2022-11-20 11:57:25,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:25,996 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, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 214 [2022-11-20 11:57:25,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:26,106 INFO L225 Difference]: With dead ends: 32002 [2022-11-20 11:57:26,106 INFO L226 Difference]: Without dead ends: 21240 [2022-11-20 11:57:26,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:26,162 INFO L413 NwaCegarLoop]: 4309 mSDtfsCounter, 2105 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 6508 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:26,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 6508 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:57:26,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21240 states. [2022-11-20 11:57:28,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21240 to 21201. [2022-11-20 11:57:28,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21201 states, 14360 states have (on average 1.2485376044568246) internal successors, (17929), 14834 states have internal predecessors, (17929), 5617 states have call successors, (5617), 1242 states have call predecessors, (5617), 1221 states have return successors, (5641), 5468 states have call predecessors, (5641), 5613 states have call successors, (5641) [2022-11-20 11:57:28,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21201 states to 21201 states and 29187 transitions. [2022-11-20 11:57:28,219 INFO L78 Accepts]: Start accepts. Automaton has 21201 states and 29187 transitions. Word has length 214 [2022-11-20 11:57:28,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:28,220 INFO L495 AbstractCegarLoop]: Abstraction has 21201 states and 29187 transitions. [2022-11-20 11:57:28,220 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, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-20 11:57:28,220 INFO L276 IsEmpty]: Start isEmpty. Operand 21201 states and 29187 transitions. [2022-11-20 11:57:28,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-20 11:57:28,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:28,229 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:28,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:28,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:28,456 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:57:28,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:28,457 INFO L85 PathProgramCache]: Analyzing trace with hash -596580812, now seen corresponding path program 1 times [2022-11-20 11:57:28,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:28,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118032642] [2022-11-20 11:57:28,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:28,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:28,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:28,459 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:28,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 11:57:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:29,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 1685 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:29,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:30,973 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-11-20 11:57:30,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-11-20 11:57:31,551 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:31,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118032642] [2022-11-20 11:57:31,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118032642] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:57:31,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:57:31,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:57:31,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40893486] [2022-11-20 11:57:31,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:31,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:31,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:31,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:31,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:57:31,553 INFO L87 Difference]: Start difference. First operand 21201 states and 29187 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:57:33,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:33,876 INFO L93 Difference]: Finished difference Result 21207 states and 29192 transitions. [2022-11-20 11:57:33,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:57:33,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 203 [2022-11-20 11:57:33,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:33,980 INFO L225 Difference]: With dead ends: 21207 [2022-11-20 11:57:33,980 INFO L226 Difference]: Without dead ends: 21205 [2022-11-20 11:57:33,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:57:33,998 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2160 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2168 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:33,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2168 Valid, 6652 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:34,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21205 states. [2022-11-20 11:57:35,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21205 to 21205. [2022-11-20 11:57:35,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21205 states, 14363 states have (on average 1.248485692404094) internal successors, (17932), 14837 states have internal predecessors, (17932), 5617 states have call successors, (5617), 1243 states have call predecessors, (5617), 1222 states have return successors, (5641), 5468 states have call predecessors, (5641), 5613 states have call successors, (5641) [2022-11-20 11:57:35,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21205 states to 21205 states and 29190 transitions. [2022-11-20 11:57:35,925 INFO L78 Accepts]: Start accepts. Automaton has 21205 states and 29190 transitions. Word has length 203 [2022-11-20 11:57:35,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:35,925 INFO L495 AbstractCegarLoop]: Abstraction has 21205 states and 29190 transitions. [2022-11-20 11:57:35,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 11:57:35,926 INFO L276 IsEmpty]: Start isEmpty. Operand 21205 states and 29190 transitions. [2022-11-20 11:57:35,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-20 11:57:35,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:35,937 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:35,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:36,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:36,159 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:57:36,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:36,160 INFO L85 PathProgramCache]: Analyzing trace with hash -503771023, now seen corresponding path program 1 times [2022-11-20 11:57:36,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:36,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981875711] [2022-11-20 11:57:36,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:36,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:36,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:36,162 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:36,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 11:57:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:37,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1692 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:37,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-11-20 11:57:38,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:39,243 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-11-20 11:57:39,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:39,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981875711] [2022-11-20 11:57:39,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981875711] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:57:39,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:57:39,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:57:39,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006079011] [2022-11-20 11:57:39,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:39,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:39,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:39,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:39,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:57:39,245 INFO L87 Difference]: Start difference. First operand 21205 states and 29190 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 11:57:40,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:40,976 INFO L93 Difference]: Finished difference Result 21211 states and 29195 transitions. [2022-11-20 11:57:40,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:57:40,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 208 [2022-11-20 11:57:40,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:41,053 INFO L225 Difference]: With dead ends: 21211 [2022-11-20 11:57:41,053 INFO L226 Difference]: Without dead ends: 21209 [2022-11-20 11:57:41,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:57:41,066 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2160 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:41,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 6652 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:41,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21209 states. [2022-11-20 11:57:42,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21209 to 21209. [2022-11-20 11:57:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21209 states, 14366 states have (on average 1.248433802032577) internal successors, (17935), 14840 states have internal predecessors, (17935), 5617 states have call successors, (5617), 1244 states have call predecessors, (5617), 1223 states have return successors, (5641), 5468 states have call predecessors, (5641), 5613 states have call successors, (5641) [2022-11-20 11:57:42,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21209 states to 21209 states and 29193 transitions. [2022-11-20 11:57:42,972 INFO L78 Accepts]: Start accepts. Automaton has 21209 states and 29193 transitions. Word has length 208 [2022-11-20 11:57:42,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:42,973 INFO L495 AbstractCegarLoop]: Abstraction has 21209 states and 29193 transitions. [2022-11-20 11:57:42,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 11:57:42,973 INFO L276 IsEmpty]: Start isEmpty. Operand 21209 states and 29193 transitions. [2022-11-20 11:57:42,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-11-20 11:57:42,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:42,983 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:43,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:43,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:43,209 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:57:43,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:43,209 INFO L85 PathProgramCache]: Analyzing trace with hash 623893524, now seen corresponding path program 1 times [2022-11-20 11:57:43,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:43,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1289149476] [2022-11-20 11:57:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:43,211 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:43,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:43,212 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:43,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 11:57:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:44,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:44,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:45,832 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-11-20 11:57:45,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:46,332 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-11-20 11:57:46,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:46,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1289149476] [2022-11-20 11:57:46,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1289149476] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:57:46,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:57:46,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:57:46,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543639383] [2022-11-20 11:57:46,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:46,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:46,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:46,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:46,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:57:46,334 INFO L87 Difference]: Start difference. First operand 21209 states and 29193 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 11:57:48,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:48,425 INFO L93 Difference]: Finished difference Result 21721 states and 29743 transitions. [2022-11-20 11:57:48,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:57:48,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 213 [2022-11-20 11:57:48,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:48,492 INFO L225 Difference]: With dead ends: 21721 [2022-11-20 11:57:48,492 INFO L226 Difference]: Without dead ends: 21719 [2022-11-20 11:57:48,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:57:48,501 INFO L413 NwaCegarLoop]: 2235 mSDtfsCounter, 2109 mSDsluCounter, 4570 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 6805 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:48,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 6805 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:48,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21719 states. [2022-11-20 11:57:50,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21719 to 21717. [2022-11-20 11:57:50,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21717 states, 14701 states have (on average 1.2452214135092852) internal successors, (18306), 15191 states have internal predecessors, (18306), 5705 states have call successors, (5705), 1329 states have call predecessors, (5705), 1308 states have return successors, (5729), 5556 states have call predecessors, (5729), 5701 states have call successors, (5729) [2022-11-20 11:57:50,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21717 states to 21717 states and 29740 transitions. [2022-11-20 11:57:50,965 INFO L78 Accepts]: Start accepts. Automaton has 21717 states and 29740 transitions. Word has length 213 [2022-11-20 11:57:50,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:50,966 INFO L495 AbstractCegarLoop]: Abstraction has 21717 states and 29740 transitions. [2022-11-20 11:57:50,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 11:57:50,967 INFO L276 IsEmpty]: Start isEmpty. Operand 21717 states and 29740 transitions. [2022-11-20 11:57:50,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-20 11:57:50,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:50,977 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:51,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:51,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:51,193 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:57:51,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:51,194 INFO L85 PathProgramCache]: Analyzing trace with hash -238881263, now seen corresponding path program 1 times [2022-11-20 11:57:51,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:51,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984219560] [2022-11-20 11:57:51,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:51,196 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:51,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:51,198 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:51,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 11:57:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:52,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:52,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:53,831 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2022-11-20 11:57:53,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:57:54,379 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2022-11-20 11:57:54,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:54,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984219560] [2022-11-20 11:57:54,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1984219560] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:57:54,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:57:54,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:57:54,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514447906] [2022-11-20 11:57:54,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:54,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:54,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:54,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:54,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:57:54,383 INFO L87 Difference]: Start difference. First operand 21717 states and 29740 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 11:57:56,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:56,663 INFO L93 Difference]: Finished difference Result 21723 states and 29745 transitions. [2022-11-20 11:57:56,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:57:56,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 218 [2022-11-20 11:57:56,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:56,736 INFO L225 Difference]: With dead ends: 21723 [2022-11-20 11:57:56,736 INFO L226 Difference]: Without dead ends: 21721 [2022-11-20 11:57:56,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:57:56,747 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2160 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:56,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 6652 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:56,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21721 states. [2022-11-20 11:57:59,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21721 to 21721. [2022-11-20 11:57:59,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21721 states, 14704 states have (on average 1.245171381936888) internal successors, (18309), 15194 states have internal predecessors, (18309), 5705 states have call successors, (5705), 1330 states have call predecessors, (5705), 1309 states have return successors, (5729), 5556 states have call predecessors, (5729), 5701 states have call successors, (5729) [2022-11-20 11:57:59,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21721 states to 21721 states and 29743 transitions. [2022-11-20 11:57:59,287 INFO L78 Accepts]: Start accepts. Automaton has 21721 states and 29743 transitions. Word has length 218 [2022-11-20 11:57:59,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:59,287 INFO L495 AbstractCegarLoop]: Abstraction has 21721 states and 29743 transitions. [2022-11-20 11:57:59,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-20 11:57:59,288 INFO L276 IsEmpty]: Start isEmpty. Operand 21721 states and 29743 transitions. [2022-11-20 11:57:59,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-20 11:57:59,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:59,298 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:59,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:59,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:59,525 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:57:59,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:59,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1645128180, now seen corresponding path program 1 times [2022-11-20 11:57:59,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:59,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094416454] [2022-11-20 11:57:59,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:59,527 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:59,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:59,528 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:59,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 11:58:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:01,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:58:01,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2022-11-20 11:58:02,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:58:02,657 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2022-11-20 11:58:02,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:58:02,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094416454] [2022-11-20 11:58:02,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2094416454] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:58:02,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:58:02,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:58:02,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485177221] [2022-11-20 11:58:02,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:02,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:58:02,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:58:02,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:58:02,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:58:02,664 INFO L87 Difference]: Start difference. First operand 21721 states and 29743 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:58:05,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:58:05,139 INFO L93 Difference]: Finished difference Result 21833 states and 29821 transitions. [2022-11-20 11:58:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:58:05,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 223 [2022-11-20 11:58:05,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:58:05,211 INFO L225 Difference]: With dead ends: 21833 [2022-11-20 11:58:05,211 INFO L226 Difference]: Without dead ends: 21831 [2022-11-20 11:58:05,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:58:05,220 INFO L413 NwaCegarLoop]: 2229 mSDtfsCounter, 2123 mSDsluCounter, 4487 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2127 SdHoareTripleChecker+Valid, 6716 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:58:05,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2127 Valid, 6716 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:58:05,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21831 states. [2022-11-20 11:58:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21831 to 21829. [2022-11-20 11:58:07,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21829 states, 14779 states have (on average 1.2439271939914744) internal successors, (18384), 15269 states have internal predecessors, (18384), 5705 states have call successors, (5705), 1363 states have call predecessors, (5705), 1342 states have return successors, (5729), 5556 states have call predecessors, (5729), 5701 states have call successors, (5729) [2022-11-20 11:58:07,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21829 states to 21829 states and 29818 transitions. [2022-11-20 11:58:07,767 INFO L78 Accepts]: Start accepts. Automaton has 21829 states and 29818 transitions. Word has length 223 [2022-11-20 11:58:07,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:58:07,768 INFO L495 AbstractCegarLoop]: Abstraction has 21829 states and 29818 transitions. [2022-11-20 11:58:07,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-20 11:58:07,768 INFO L276 IsEmpty]: Start isEmpty. Operand 21829 states and 29818 transitions. [2022-11-20 11:58:07,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-20 11:58:07,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:58:07,780 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 10, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:58:07,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-11-20 11:58:07,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:58:07,987 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:58:07,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:07,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1603535793, now seen corresponding path program 1 times [2022-11-20 11:58:07,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:58:07,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729319669] [2022-11-20 11:58:07,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:07,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:58:07,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:58:07,990 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:58:07,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 11:58:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:09,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:58:09,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:10,645 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2022-11-20 11:58:10,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:58:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2022-11-20 11:58:11,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:58:11,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729319669] [2022-11-20 11:58:11,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729319669] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:58:11,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:58:11,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:58:11,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671534952] [2022-11-20 11:58:11,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:11,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:58:11,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:58:11,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:58:11,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:58:11,197 INFO L87 Difference]: Start difference. First operand 21829 states and 29818 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 11:58:13,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:58:13,769 INFO L93 Difference]: Finished difference Result 21835 states and 29823 transitions. [2022-11-20 11:58:13,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:58:13,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 228 [2022-11-20 11:58:13,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:58:13,835 INFO L225 Difference]: With dead ends: 21835 [2022-11-20 11:58:13,835 INFO L226 Difference]: Without dead ends: 21833 [2022-11-20 11:58:13,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:58:13,842 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2160 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2163 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:58:13,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2163 Valid, 6652 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:58:13,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21833 states. [2022-11-20 11:58:16,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21833 to 21833. [2022-11-20 11:58:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21833 states, 14782 states have (on average 1.243877689081315) internal successors, (18387), 15272 states have internal predecessors, (18387), 5705 states have call successors, (5705), 1364 states have call predecessors, (5705), 1343 states have return successors, (5729), 5556 states have call predecessors, (5729), 5701 states have call successors, (5729) [2022-11-20 11:58:16,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21833 states to 21833 states and 29821 transitions. [2022-11-20 11:58:16,538 INFO L78 Accepts]: Start accepts. Automaton has 21833 states and 29821 transitions. Word has length 228 [2022-11-20 11:58:16,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:58:16,538 INFO L495 AbstractCegarLoop]: Abstraction has 21833 states and 29821 transitions. [2022-11-20 11:58:16,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-20 11:58:16,539 INFO L276 IsEmpty]: Start isEmpty. Operand 21833 states and 29821 transitions. [2022-11-20 11:58:16,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-20 11:58:16,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:58:16,547 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 10, 10, 9, 9, 9, 9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:58:16,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:58:16,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:58:16,748 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:58:16,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:16,748 INFO L85 PathProgramCache]: Analyzing trace with hash -851798222, now seen corresponding path program 1 times [2022-11-20 11:58:16,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:58:16,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893669733] [2022-11-20 11:58:16,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:16,750 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:58:16,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:58:16,751 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:58:16,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 11:58:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:18,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 1810 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 11:58:18,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 211 proven. 3 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2022-11-20 11:58:19,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:58:20,439 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 49 proven. 18 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2022-11-20 11:58:20,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:58:20,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893669733] [2022-11-20 11:58:20,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893669733] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:58:20,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:58:20,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2022-11-20 11:58:20,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461263658] [2022-11-20 11:58:20,440 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:58:20,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-20 11:58:20,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:58:20,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 11:58:20,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-11-20 11:58:20,442 INFO L87 Difference]: Start difference. First operand 21833 states and 29821 transitions. Second operand has 22 states, 21 states have (on average 5.333333333333333) internal successors, (112), 20 states have internal predecessors, (112), 6 states have call successors, (55), 3 states have call predecessors, (55), 8 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) [2022-11-20 11:58:50,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:58:50,812 INFO L93 Difference]: Finished difference Result 49256 states and 67203 transitions. [2022-11-20 11:58:50,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 11:58:50,814 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 5.333333333333333) internal successors, (112), 20 states have internal predecessors, (112), 6 states have call successors, (55), 3 states have call predecessors, (55), 8 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) Word has length 268 [2022-11-20 11:58:50,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:58:50,927 INFO L225 Difference]: With dead ends: 49256 [2022-11-20 11:58:50,927 INFO L226 Difference]: Without dead ends: 32754 [2022-11-20 11:58:50,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=181, Invalid=1079, Unknown=0, NotChecked=0, Total=1260 [2022-11-20 11:58:50,987 INFO L413 NwaCegarLoop]: 4231 mSDtfsCounter, 6537 mSDsluCounter, 58727 mSDsCounter, 0 mSdLazyCounter, 6737 mSolverCounterSat, 1440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6751 SdHoareTripleChecker+Valid, 62958 SdHoareTripleChecker+Invalid, 8177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1440 IncrementalHoareTripleChecker+Valid, 6737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:58:50,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6751 Valid, 62958 Invalid, 8177 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1440 Valid, 6737 Invalid, 0 Unknown, 0 Unchecked, 24.0s Time] [2022-11-20 11:58:51,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32754 states. [2022-11-20 11:58:55,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32754 to 27277. [2022-11-20 11:58:55,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27277 states, 18467 states have (on average 1.243461309362647) internal successors, (22963), 19076 states have internal predecessors, (22963), 7120 states have call successors, (7120), 1713 states have call predecessors, (7120), 1687 states have return successors, (7151), 6937 states have call predecessors, (7151), 7116 states have call successors, (7151) [2022-11-20 11:58:56,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27277 states to 27277 states and 37234 transitions. [2022-11-20 11:58:56,036 INFO L78 Accepts]: Start accepts. Automaton has 27277 states and 37234 transitions. Word has length 268 [2022-11-20 11:58:56,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:58:56,037 INFO L495 AbstractCegarLoop]: Abstraction has 27277 states and 37234 transitions. [2022-11-20 11:58:56,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 5.333333333333333) internal successors, (112), 20 states have internal predecessors, (112), 6 states have call successors, (55), 3 states have call predecessors, (55), 8 states have return successors, (54), 7 states have call predecessors, (54), 6 states have call successors, (54) [2022-11-20 11:58:56,037 INFO L276 IsEmpty]: Start isEmpty. Operand 27277 states and 37234 transitions. [2022-11-20 11:58:56,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-11-20 11:58:56,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:58:56,046 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:58:56,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-11-20 11:58:56,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:58:56,253 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:58:56,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:56,253 INFO L85 PathProgramCache]: Analyzing trace with hash 790581204, now seen corresponding path program 1 times [2022-11-20 11:58:56,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:58:56,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020266317] [2022-11-20 11:58:56,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:56,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:58:56,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:58:56,256 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:58:56,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 11:58:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:57,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:58:57,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2022-11-20 11:58:58,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:58:59,580 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2022-11-20 11:58:59,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:58:59,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020266317] [2022-11-20 11:58:59,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020266317] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:58:59,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:58:59,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:58:59,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312985268] [2022-11-20 11:58:59,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:59,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:58:59,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:58:59,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:58:59,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:58:59,582 INFO L87 Difference]: Start difference. First operand 27277 states and 37234 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 11:59:03,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:59:03,945 INFO L93 Difference]: Finished difference Result 27283 states and 37239 transitions. [2022-11-20 11:59:03,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:59:03,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 233 [2022-11-20 11:59:03,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:59:04,032 INFO L225 Difference]: With dead ends: 27283 [2022-11-20 11:59:04,033 INFO L226 Difference]: Without dead ends: 27281 [2022-11-20 11:59:04,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:59:04,044 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2160 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:59:04,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 6652 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:59:04,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27281 states. [2022-11-20 11:59:09,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27281 to 27281. [2022-11-20 11:59:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27281 states, 18470 states have (on average 1.2434217650243637) internal successors, (22966), 19079 states have internal predecessors, (22966), 7120 states have call successors, (7120), 1714 states have call predecessors, (7120), 1688 states have return successors, (7151), 6937 states have call predecessors, (7151), 7116 states have call successors, (7151) [2022-11-20 11:59:09,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27281 states to 27281 states and 37237 transitions. [2022-11-20 11:59:09,474 INFO L78 Accepts]: Start accepts. Automaton has 27281 states and 37237 transitions. Word has length 233 [2022-11-20 11:59:09,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:59:09,475 INFO L495 AbstractCegarLoop]: Abstraction has 27281 states and 37237 transitions. [2022-11-20 11:59:09,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-20 11:59:09,475 INFO L276 IsEmpty]: Start isEmpty. Operand 27281 states and 37237 transitions. [2022-11-20 11:59:09,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-20 11:59:09,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:59:09,486 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 11, 11, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:59:09,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:59:09,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:59:09,687 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 11:59:09,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:09,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1251621201, now seen corresponding path program 1 times [2022-11-20 11:59:09,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:59:09,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861659394] [2022-11-20 11:59:09,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:09,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:59:09,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:59:09,690 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:59:09,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78101506-b194-46a0-ab2e-27d5ea6e44be/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-20 11:59:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:11,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:59:11,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:59:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2022-11-20 11:59:12,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:59:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2022-11-20 11:59:13,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:59:13,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861659394] [2022-11-20 11:59:13,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861659394] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:59:13,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:59:13,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:59:13,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532882559] [2022-11-20 11:59:13,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:13,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:59:13,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:59:13,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:59:13,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:59:13,162 INFO L87 Difference]: Start difference. First operand 27281 states and 37237 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-20 11:59:17,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:59:17,875 INFO L93 Difference]: Finished difference Result 27287 states and 37242 transitions. [2022-11-20 11:59:17,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:59:17,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 238 [2022-11-20 11:59:17,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:59:17,987 INFO L225 Difference]: With dead ends: 27287 [2022-11-20 11:59:17,987 INFO L226 Difference]: Without dead ends: 27283 [2022-11-20 11:59:18,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:59:18,001 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2160 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2161 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:59:18,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2161 Valid, 6652 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:59:18,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27283 states.