./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-mutex_fs-autofs4-autofs4.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_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/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_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/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_9c55727a-8154-401e-9c30-98f5e4d391cb/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 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 --- 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 10:50:54,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:50:54,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:50:54,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:50:54,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:50:54,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:50:54,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:50:54,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:50:54,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:50:54,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:50:54,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:50:54,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:50:54,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:50:54,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:50:54,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:50:54,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:50:54,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:50:54,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:50:54,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:50:54,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:50:54,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:50:54,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:50:54,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:50:54,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:50:54,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:50:54,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:50:54,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:50:54,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:50:54,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:50:54,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:50:54,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:50:54,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:50:54,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:50:54,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:50:54,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:50:54,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:50:54,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:50:54,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:50:54,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:50:54,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:50:54,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:50:54,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:50:54,387 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:50:54,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:50:54,388 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:50:54,388 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:50:54,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:50:54,389 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:50:54,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:50:54,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:50:54,391 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:50:54,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:50:54,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:50:54,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:50:54,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:50:54,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:50:54,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:50:54,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:50:54,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:50:54,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:50:54,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:50:54,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:50:54,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:50:54,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:50:54,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:50:54,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:50:54,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:50:54,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:50:54,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:50:54,397 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:50:54,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:50:54,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:50:54,398 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_9c55727a-8154-401e-9c30-98f5e4d391cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 [2022-11-20 10:50:54,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:50:54,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:50:54,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:50:54,715 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:50:54,716 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:50:54,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2022-11-20 10:50:57,682 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:50:58,309 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:50:58,309 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2022-11-20 10:50:58,377 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/data/4ea0ee4eb/b150d575e68a4716a881cfdd3e615b95/FLAGd52565963 [2022-11-20 10:50:58,398 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/data/4ea0ee4eb/b150d575e68a4716a881cfdd3e615b95 [2022-11-20 10:50:58,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:50:58,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:50:58,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:50:58,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:50:58,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:50:58,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:58" (1/1) ... [2022-11-20 10:50:58,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c530921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:58, skipping insertion in model container [2022-11-20 10:50:58,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:58" (1/1) ... [2022-11-20 10:50:58,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:50:58,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:51:01,265 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.abstractShiftLeft(BitabsTranslation.java:148) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:187) 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: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:728) 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:728) 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:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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 10:51:01,271 INFO L158 Benchmark]: Toolchain (without parser) took 2868.25ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 88.5MB in the beginning and 131.7MB in the end (delta: -43.2MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2022-11-20 10:51:01,272 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:51:01,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2864.25ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 87.9MB in the beginning and 131.7MB in the end (delta: -43.8MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2022-11-20 10:51:01,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2864.25ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 87.9MB in the beginning and 131.7MB in the end (delta: -43.8MB). Peak memory consumption was 61.2MB. 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_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/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_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/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_9c55727a-8154-401e-9c30-98f5e4d391cb/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 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 --- 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 10:51:03,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:51:03,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:51:03,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:51:03,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:51:03,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:51:03,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:51:03,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:51:03,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:51:03,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:51:03,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:51:03,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:51:03,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:51:03,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:51:03,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:51:03,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:51:03,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:51:03,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:51:03,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:51:03,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:51:03,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:51:03,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:51:03,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:51:03,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:51:03,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:51:03,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:51:03,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:51:03,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:51:03,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:51:03,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:51:03,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:51:03,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:51:03,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:51:03,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:51:03,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:51:03,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:51:03,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:51:03,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:51:03,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:51:03,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:51:03,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:51:03,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:51:03,861 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:51:03,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:51:03,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:51:03,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:51:03,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:51:03,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:51:03,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:51:03,866 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:51:03,866 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:51:03,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:51:03,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:51:03,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:51:03,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:51:03,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:51:03,869 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:51:03,869 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:51:03,869 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:51:03,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:51:03,870 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:51:03,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:51:03,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:51:03,870 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:51:03,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:51:03,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:51:03,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:51:03,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:51:03,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:51:03,872 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:51:03,872 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:51:03,872 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:51:03,873 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:51:03,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:51:03,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:51:03,873 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_9c55727a-8154-401e-9c30-98f5e4d391cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 [2022-11-20 10:51:04,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:51:04,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:51:04,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:51:04,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:51:04,296 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:51:04,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2022-11-20 10:51:07,507 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:51:08,185 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:51:08,186 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2022-11-20 10:51:08,244 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/data/0cf7d1dd1/1954906d103e424db739916ebfad991a/FLAG946ad3270 [2022-11-20 10:51:08,263 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/data/0cf7d1dd1/1954906d103e424db739916ebfad991a [2022-11-20 10:51:08,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:51:08,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:51:08,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:51:08,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:51:08,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:51:08,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:08" (1/1) ... [2022-11-20 10:51:08,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@909aacb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:08, skipping insertion in model container [2022-11-20 10:51:08,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:08" (1/1) ... [2022-11-20 10:51:08,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:51:08,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:51:12,007 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2022-11-20 10:51:12,011 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2022-11-20 10:51:12,011 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2022-11-20 10:51:12,012 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2022-11-20 10:51:12,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:51:12,168 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:51:12,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:51:12,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2022-11-20 10:51:12,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2022-11-20 10:51:12,780 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2022-11-20 10:51:12,781 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2022-11-20 10:51:12,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:51:12,824 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:51:13,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2022-11-20 10:51:13,305 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2022-11-20 10:51:13,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2022-11-20 10:51:13,306 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2022-11-20 10:51:13,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:51:13,583 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:51:13,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13 WrapperNode [2022-11-20 10:51:13,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:51:13,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:51:13,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:51:13,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:51:13,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:13,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:14,063 INFO L138 Inliner]: procedures = 532, calls = 3782, calls flagged for inlining = 278, calls inlined = 255, statements flattened = 8979 [2022-11-20 10:51:14,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:51:14,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:51:14,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:51:14,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:51:14,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:14,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:14,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:14,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:14,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:14,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:14,459 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:14,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:14,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:51:14,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:51:14,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:51:14,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:51:14,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (1/1) ... [2022-11-20 10:51:14,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:51:14,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:51:14,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:51:14,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:51:14,627 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2022-11-20 10:51:14,628 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2022-11-20 10:51:14,628 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-20 10:51:14,628 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-20 10:51:14,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:51:14,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:51:14,629 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2022-11-20 10:51:14,629 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2022-11-20 10:51:14,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wq_mutex_of_autofs_sb_info [2022-11-20 10:51:14,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wq_mutex_of_autofs_sb_info [2022-11-20 10:51:14,629 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2022-11-20 10:51:14,629 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2022-11-20 10:51:14,630 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 10:51:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 10:51:14,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:51:14,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:51:14,630 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2022-11-20 10:51:14,631 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2022-11-20 10:51:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2022-11-20 10:51:14,632 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2022-11-20 10:51:14,632 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-20 10:51:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-20 10:51:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2022-11-20 10:51:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2022-11-20 10:51:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2022-11-20 10:51:14,633 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2022-11-20 10:51:14,633 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2022-11-20 10:51:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2022-11-20 10:51:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2022-11-20 10:51:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2022-11-20 10:51:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-20 10:51:14,634 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-20 10:51:14,634 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2022-11-20 10:51:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2022-11-20 10:51:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 10:51:14,635 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 10:51:14,635 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2022-11-20 10:51:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2022-11-20 10:51:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2022-11-20 10:51:14,636 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2022-11-20 10:51:14,636 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2022-11-20 10:51:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2022-11-20 10:51:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2022-11-20 10:51:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2022-11-20 10:51:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 10:51:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2022-11-20 10:51:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2022-11-20 10:51:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2022-11-20 10:51:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2022-11-20 10:51:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 10:51:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 10:51:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-20 10:51:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-20 10:51:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 10:51:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 10:51:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 10:51:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 10:51:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:51:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:51:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:51:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2022-11-20 10:51:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2022-11-20 10:51:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 10:51:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:51:14,641 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-20 10:51:14,641 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-20 10:51:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:51:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___4 [2022-11-20 10:51:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___4 [2022-11-20 10:51:14,642 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___2 [2022-11-20 10:51:14,642 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___2 [2022-11-20 10:51:14,643 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-20 10:51:14,643 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-20 10:51:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 10:51:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 10:51:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 10:51:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 10:51:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-20 10:51:14,644 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-20 10:51:14,644 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2022-11-20 10:51:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2022-11-20 10:51:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2022-11-20 10:51:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2022-11-20 10:51:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2022-11-20 10:51:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2022-11-20 10:51:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 10:51:14,645 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 10:51:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2022-11-20 10:51:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2022-11-20 10:51:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 10:51:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 10:51:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2022-11-20 10:51:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2022-11-20 10:51:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2022-11-20 10:51:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2022-11-20 10:51:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 10:51:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 10:51:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2022-11-20 10:51:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2022-11-20 10:51:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2022-11-20 10:51:14,648 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2022-11-20 10:51:14,649 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-11-20 10:51:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-11-20 10:51:14,657 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2022-11-20 10:51:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2022-11-20 10:51:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:51:14,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:51:14,658 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2022-11-20 10:51:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2022-11-20 10:51:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2022-11-20 10:51:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2022-11-20 10:51:14,661 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2022-11-20 10:51:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2022-11-20 10:51:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-20 10:51:14,666 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-20 10:51:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 10:51:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 10:51:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2022-11-20 10:51:14,667 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2022-11-20 10:51:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-20 10:51:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-20 10:51:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2022-11-20 10:51:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2022-11-20 10:51:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 10:51:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 10:51:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2022-11-20 10:51:14,668 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2022-11-20 10:51:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:51:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-20 10:51:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-20 10:51:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 10:51:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 10:51:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 10:51:14,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 10:51:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-20 10:51:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-20 10:51:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 10:51:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 10:51:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2022-11-20 10:51:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-20 10:51:14,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-20 10:51:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:51:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 10:51:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 10:51:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:51:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 10:51:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2022-11-20 10:51:14,671 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2022-11-20 10:51:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 10:51:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 10:51:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 10:51:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-20 10:51:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-20 10:51:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2022-11-20 10:51:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2022-11-20 10:51:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2022-11-20 10:51:14,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2022-11-20 10:51:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2022-11-20 10:51:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2022-11-20 10:51:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-20 10:51:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-20 10:51:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-20 10:51:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-20 10:51:14,673 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-20 10:51:14,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-20 10:51:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2022-11-20 10:51:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2022-11-20 10:51:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 10:51:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2022-11-20 10:51:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2022-11-20 10:51:14,674 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2022-11-20 10:51:14,674 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2022-11-20 10:51:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:51:14,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:51:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2022-11-20 10:51:14,675 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2022-11-20 10:51:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 10:51:14,675 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 10:51:14,675 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2022-11-20 10:51:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2022-11-20 10:51:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:51:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2022-11-20 10:51:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2022-11-20 10:51:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-20 10:51:14,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-20 10:51:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:51:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:51:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:51:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:51:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:51:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2022-11-20 10:51:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2022-11-20 10:51:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:51:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:51:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2022-11-20 10:51:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2022-11-20 10:51:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-20 10:51:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-20 10:51:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp [2022-11-20 10:51:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp [2022-11-20 10:51:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 10:51:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 10:51:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2022-11-20 10:51:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2022-11-20 10:51:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2022-11-20 10:51:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2022-11-20 10:51:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-20 10:51:14,679 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-20 10:51:14,679 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2022-11-20 10:51:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2022-11-20 10:51:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-20 10:51:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-20 10:51:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pipe_mutex_of_autofs_sb_info [2022-11-20 10:51:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pipe_mutex_of_autofs_sb_info [2022-11-20 10:51:14,680 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2022-11-20 10:51:14,680 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2022-11-20 10:51:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 10:51:14,681 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 10:51:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2022-11-20 10:51:14,681 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2022-11-20 10:51:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:51:14,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:51:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2022-11-20 10:51:14,682 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2022-11-20 10:51:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2022-11-20 10:51:14,682 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2022-11-20 10:51:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2022-11-20 10:51:14,682 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2022-11-20 10:51:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2022-11-20 10:51:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2022-11-20 10:51:14,687 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 10:51:14,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 10:51:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2022-11-20 10:51:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2022-11-20 10:51:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:51:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 10:51:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 10:51:14,688 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-20 10:51:14,688 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-20 10:51:14,689 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-20 10:51:14,690 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-20 10:51:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2022-11-20 10:51:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2022-11-20 10:51:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:51:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-20 10:51:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-20 10:51:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-20 10:51:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-20 10:51:14,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:51:14,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:51:14,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:51:14,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:51:14,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:51:14,692 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-20 10:51:14,692 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-20 10:51:14,693 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 10:51:14,693 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 10:51:14,693 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2022-11-20 10:51:14,693 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2022-11-20 10:51:14,693 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 10:51:14,693 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 10:51:14,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_wq_mutex_of_autofs_sb_info [2022-11-20 10:51:14,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_wq_mutex_of_autofs_sb_info [2022-11-20 10:51:14,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 10:51:14,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 10:51:14,694 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2022-11-20 10:51:14,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2022-11-20 10:51:14,694 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2022-11-20 10:51:14,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2022-11-20 10:51:14,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 10:51:14,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 10:51:14,695 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 10:51:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 10:51:14,695 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2022-11-20 10:51:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2022-11-20 10:51:14,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wq_mutex_of_autofs_sb_info [2022-11-20 10:51:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wq_mutex_of_autofs_sb_info [2022-11-20 10:51:14,695 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2022-11-20 10:51:14,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_LONG [2022-11-20 10:51:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 10:51:14,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 10:51:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2022-11-20 10:51:14,696 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2022-11-20 10:51:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2022-11-20 10:51:14,696 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2022-11-20 10:51:14,696 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 10:51:14,697 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 10:51:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2022-11-20 10:51:14,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2022-11-20 10:51:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 10:51:14,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 10:51:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2022-11-20 10:51:14,697 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2022-11-20 10:51:14,697 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-11-20 10:51:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-11-20 10:51:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2022-11-20 10:51:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2022-11-20 10:51:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-20 10:51:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-20 10:51:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-20 10:51:14,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2022-11-20 10:51:14,699 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2022-11-20 10:51:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2022-11-20 10:51:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2022-11-20 10:51:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2022-11-20 10:51:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 10:51:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 10:51:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:51:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 10:51:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:51:14,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:51:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-20 10:51:14,753 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-20 10:51:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2022-11-20 10:51:14,753 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2022-11-20 10:51:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-20 10:51:14,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-20 10:51:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2022-11-20 10:51:14,753 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2022-11-20 10:51:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 10:51:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 10:51:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2022-11-20 10:51:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2022-11-20 10:51:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-20 10:51:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-20 10:51:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2022-11-20 10:51:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2022-11-20 10:51:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-20 10:51:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-20 10:51:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-20 10:51:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-20 10:51:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 10:51:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 10:51:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 10:51:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 10:51:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2022-11-20 10:51:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2022-11-20 10:51:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 10:51:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 10:51:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2022-11-20 10:51:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2022-11-20 10:51:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 10:51:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 10:51:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_nested [2022-11-20 10:51:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_nested [2022-11-20 10:51:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-20 10:51:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-20 10:51:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2022-11-20 10:51:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2022-11-20 10:51:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2022-11-20 10:51:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2022-11-20 10:51:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-20 10:51:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-20 10:51:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 10:51:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 10:51:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-20 10:51:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2022-11-20 10:51:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2022-11-20 10:51:16,021 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:51:16,029 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:51:16,428 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:51:23,935 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2022-11-20 10:52:29,256 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 10:52:30,543 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:52:30,567 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:52:30,567 INFO L300 CfgBuilder]: Removed 13 assume(true) statements. [2022-11-20 10:52:30,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:52:30 BoogieIcfgContainer [2022-11-20 10:52:30,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:52:30,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:52:30,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:52:30,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:52:30,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:51:08" (1/3) ... [2022-11-20 10:52:30,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f4dde9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:52:30, skipping insertion in model container [2022-11-20 10:52:30,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:13" (2/3) ... [2022-11-20 10:52:30,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21f4dde9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:52:30, skipping insertion in model container [2022-11-20 10:52:30,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:52:30" (3/3) ... [2022-11-20 10:52:30,582 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2022-11-20 10:52:30,601 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:52:30,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 10:52:30,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:52:30,784 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;@6a9710af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:52:30,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 10:52:30,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 3190 states, 2132 states have (on average 1.299249530956848) internal successors, (2770), 2182 states have internal predecessors, (2770), 894 states have call successors, (894), 162 states have call predecessors, (894), 161 states have return successors, (883), 877 states have call predecessors, (883), 883 states have call successors, (883) [2022-11-20 10:52:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-11-20 10:52:30,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:30,842 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:30,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:52:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:30,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1265135688, now seen corresponding path program 1 times [2022-11-20 10:52:30,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:30,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834150698] [2022-11-20 10:52:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:30,869 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 10:52:30,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:30,874 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:30,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:33,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 2660 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:33,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:33,536 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8514 trivial. 0 not checked. [2022-11-20 10:52:33,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:33,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:33,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834150698] [2022-11-20 10:52:33,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834150698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:33,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:33,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:33,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68122453] [2022-11-20 10:52:33,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:33,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:33,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:33,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:33,589 INFO L87 Difference]: Start difference. First operand has 3190 states, 2132 states have (on average 1.299249530956848) internal successors, (2770), 2182 states have internal predecessors, (2770), 894 states have call successors, (894), 162 states have call predecessors, (894), 161 states have return successors, (883), 877 states have call predecessors, (883), 883 states have call successors, (883) Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-20 10:52:34,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:34,576 INFO L93 Difference]: Finished difference Result 9203 states and 13441 transitions. [2022-11-20 10:52:34,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:34,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 516 [2022-11-20 10:52:34,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:34,647 INFO L225 Difference]: With dead ends: 9203 [2022-11-20 10:52:34,647 INFO L226 Difference]: Without dead ends: 6090 [2022-11-20 10:52:34,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 514 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 10:52:34,687 INFO L413 NwaCegarLoop]: 5259 mSDtfsCounter, 4198 mSDsluCounter, 4352 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4198 SdHoareTripleChecker+Valid, 9611 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:34,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4198 Valid, 9611 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:52:34,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6090 states. [2022-11-20 10:52:35,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6090 to 6086. [2022-11-20 10:52:35,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6086 states, 4077 states have (on average 1.2710326220259995) internal successors, (5182), 4171 states have internal predecessors, (5182), 1688 states have call successors, (1688), 319 states have call predecessors, (1688), 318 states have return successors, (1684), 1672 states have call predecessors, (1684), 1684 states have call successors, (1684) [2022-11-20 10:52:35,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 8554 transitions. [2022-11-20 10:52:35,170 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 8554 transitions. Word has length 516 [2022-11-20 10:52:35,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:35,173 INFO L495 AbstractCegarLoop]: Abstraction has 6086 states and 8554 transitions. [2022-11-20 10:52:35,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-20 10:52:35,174 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 8554 transitions. [2022-11-20 10:52:35,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-11-20 10:52:35,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:35,201 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:35,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-20 10:52:35,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:35,425 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:52:35,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:35,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1483520515, now seen corresponding path program 1 times [2022-11-20 10:52:35,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:35,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615927084] [2022-11-20 10:52:35,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:35,430 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 10:52:35,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:35,432 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:35,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:37,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 2787 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:37,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:38,078 INFO L134 CoverageAnalysis]: Checked inductivity of 8650 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8518 trivial. 0 not checked. [2022-11-20 10:52:38,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:38,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:38,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615927084] [2022-11-20 10:52:38,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615927084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:38,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:38,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:38,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594727751] [2022-11-20 10:52:38,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:38,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:38,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:38,083 INFO L87 Difference]: Start difference. First operand 6086 states and 8554 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-20 10:52:39,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:39,284 INFO L93 Difference]: Finished difference Result 14937 states and 20952 transitions. [2022-11-20 10:52:39,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:39,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 549 [2022-11-20 10:52:39,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:39,348 INFO L225 Difference]: With dead ends: 14937 [2022-11-20 10:52:39,349 INFO L226 Difference]: Without dead ends: 8944 [2022-11-20 10:52:39,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 547 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 10:52:39,379 INFO L413 NwaCegarLoop]: 5222 mSDtfsCounter, 4083 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 9577 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:39,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4083 Valid, 9577 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 10:52:39,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8944 states. [2022-11-20 10:52:39,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8944 to 8923. [2022-11-20 10:52:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8923 states, 6003 states have (on average 1.2691987339663502) internal successors, (7619), 6145 states have internal predecessors, (7619), 2437 states have call successors, (2437), 481 states have call predecessors, (2437), 480 states have return successors, (2437), 2412 states have call predecessors, (2437), 2433 states have call successors, (2437) [2022-11-20 10:52:40,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8923 states to 8923 states and 12493 transitions. [2022-11-20 10:52:40,026 INFO L78 Accepts]: Start accepts. Automaton has 8923 states and 12493 transitions. Word has length 549 [2022-11-20 10:52:40,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:40,032 INFO L495 AbstractCegarLoop]: Abstraction has 8923 states and 12493 transitions. [2022-11-20 10:52:40,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-20 10:52:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 8923 states and 12493 transitions. [2022-11-20 10:52:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-11-20 10:52:40,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:40,053 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:40,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:40,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:40,266 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:52:40,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:40,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1397387819, now seen corresponding path program 1 times [2022-11-20 10:52:40,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:40,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885973960] [2022-11-20 10:52:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:40,269 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 10:52:40,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:40,271 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:40,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:42,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 2788 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:42,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 8650 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8518 trivial. 0 not checked. [2022-11-20 10:52:42,626 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:42,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:42,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885973960] [2022-11-20 10:52:42,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885973960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:42,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:42,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:42,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351623351] [2022-11-20 10:52:42,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:42,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:42,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:42,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:42,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:42,629 INFO L87 Difference]: Start difference. First operand 8923 states and 12493 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-20 10:52:43,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:43,981 INFO L93 Difference]: Finished difference Result 23176 states and 32401 transitions. [2022-11-20 10:52:43,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:43,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 550 [2022-11-20 10:52:43,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:44,076 INFO L225 Difference]: With dead ends: 23176 [2022-11-20 10:52:44,076 INFO L226 Difference]: Without dead ends: 14346 [2022-11-20 10:52:44,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 548 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 10:52:44,121 INFO L413 NwaCegarLoop]: 5223 mSDtfsCounter, 4097 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4097 SdHoareTripleChecker+Valid, 9578 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:44,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4097 Valid, 9578 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:52:44,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14346 states. [2022-11-20 10:52:45,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14346 to 14316. [2022-11-20 10:52:45,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14316 states, 9647 states have (on average 1.268580905981134) internal successors, (12238), 9885 states have internal predecessors, (12238), 3867 states have call successors, (3867), 800 states have call predecessors, (3867), 799 states have return successors, (3879), 3824 states have call predecessors, (3879), 3863 states have call successors, (3879) [2022-11-20 10:52:45,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14316 states to 14316 states and 19984 transitions. [2022-11-20 10:52:45,141 INFO L78 Accepts]: Start accepts. Automaton has 14316 states and 19984 transitions. Word has length 550 [2022-11-20 10:52:45,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:45,142 INFO L495 AbstractCegarLoop]: Abstraction has 14316 states and 19984 transitions. [2022-11-20 10:52:45,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-20 10:52:45,142 INFO L276 IsEmpty]: Start isEmpty. Operand 14316 states and 19984 transitions. [2022-11-20 10:52:45,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2022-11-20 10:52:45,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:45,156 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:45,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:45,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:45,372 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:52:45,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:45,373 INFO L85 PathProgramCache]: Analyzing trace with hash 895476645, now seen corresponding path program 1 times [2022-11-20 10:52:45,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:45,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562698474] [2022-11-20 10:52:45,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:45,376 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 10:52:45,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:45,377 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:45,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:47,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 2786 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:52:47,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:47,639 INFO L134 CoverageAnalysis]: Checked inductivity of 8650 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8518 trivial. 0 not checked. [2022-11-20 10:52:47,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:47,639 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:47,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562698474] [2022-11-20 10:52:47,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562698474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:47,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:47,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:52:47,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919492068] [2022-11-20 10:52:47,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:47,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:52:47,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:47,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:52:47,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:52:47,642 INFO L87 Difference]: Start difference. First operand 14316 states and 19984 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-20 10:52:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:52:49,408 INFO L93 Difference]: Finished difference Result 36837 states and 51223 transitions. [2022-11-20 10:52:49,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:52:49,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 548 [2022-11-20 10:52:49,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:52:49,595 INFO L225 Difference]: With dead ends: 36837 [2022-11-20 10:52:49,595 INFO L226 Difference]: Without dead ends: 22614 [2022-11-20 10:52:49,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 546 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 10:52:49,655 INFO L413 NwaCegarLoop]: 5657 mSDtfsCounter, 3579 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3579 SdHoareTripleChecker+Valid, 10012 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 10:52:49,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3579 Valid, 10012 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 10:52:49,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22614 states. [2022-11-20 10:52:51,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22614 to 22584. [2022-11-20 10:52:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22584 states, 15228 states have (on average 1.261163645915419) internal successors, (19205), 15606 states have internal predecessors, (19205), 6025 states have call successors, (6025), 1332 states have call predecessors, (6025), 1328 states have return successors, (6065), 5951 states have call predecessors, (6065), 6021 states have call successors, (6065) [2022-11-20 10:52:51,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22584 states to 22584 states and 31295 transitions. [2022-11-20 10:52:51,213 INFO L78 Accepts]: Start accepts. Automaton has 22584 states and 31295 transitions. Word has length 548 [2022-11-20 10:52:51,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:52:51,215 INFO L495 AbstractCegarLoop]: Abstraction has 22584 states and 31295 transitions. [2022-11-20 10:52:51,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (55), 3 states have call predecessors, (55), 3 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2022-11-20 10:52:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand 22584 states and 31295 transitions. [2022-11-20 10:52:51,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2022-11-20 10:52:51,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:52:51,230 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 44, 44, 44, 44, 44, 44, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:52:51,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:52:51,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:51,445 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:52:51,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:52:51,445 INFO L85 PathProgramCache]: Analyzing trace with hash 241028160, now seen corresponding path program 1 times [2022-11-20 10:52:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:52:51,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135820740] [2022-11-20 10:52:51,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:52:51,449 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 10:52:51,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:52:51,450 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:51,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:52:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:52:53,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 2773 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 10:52:53,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:52:54,189 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 8789 trivial. 0 not checked. [2022-11-20 10:52:54,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:52:54,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:52:54,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135820740] [2022-11-20 10:52:54,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135820740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:52:54,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:52:54,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:52:54,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669873452] [2022-11-20 10:52:54,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:52:54,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:52:54,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:52:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:52:54,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:52:54,193 INFO L87 Difference]: Start difference. First operand 22584 states and 31295 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 10:53:00,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:00,333 INFO L93 Difference]: Finished difference Result 53230 states and 75418 transitions. [2022-11-20 10:53:00,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:53:00,334 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) Word has length 581 [2022-11-20 10:53:00,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:00,507 INFO L225 Difference]: With dead ends: 53230 [2022-11-20 10:53:00,507 INFO L226 Difference]: Without dead ends: 32313 [2022-11-20 10:53:00,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:53:00,579 INFO L413 NwaCegarLoop]: 5943 mSDtfsCounter, 3209 mSDsluCounter, 32838 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 1001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3459 SdHoareTripleChecker+Valid, 38781 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1001 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:00,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3459 Valid, 38781 Invalid, 1533 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1001 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-20 10:53:00,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32313 states. [2022-11-20 10:53:02,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32313 to 22605. [2022-11-20 10:53:02,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22605 states, 15249 states have (on average 1.260738409076005) internal successors, (19225), 15627 states have internal predecessors, (19225), 6025 states have call successors, (6025), 1332 states have call predecessors, (6025), 1328 states have return successors, (6065), 5951 states have call predecessors, (6065), 6021 states have call successors, (6065) [2022-11-20 10:53:03,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22605 states to 22605 states and 31315 transitions. [2022-11-20 10:53:03,075 INFO L78 Accepts]: Start accepts. Automaton has 22605 states and 31315 transitions. Word has length 581 [2022-11-20 10:53:03,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:03,077 INFO L495 AbstractCegarLoop]: Abstraction has 22605 states and 31315 transitions. [2022-11-20 10:53:03,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-20 10:53:03,078 INFO L276 IsEmpty]: Start isEmpty. Operand 22605 states and 31315 transitions. [2022-11-20 10:53:03,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-20 10:53:03,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:03,097 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 44, 44, 44, 44, 44, 44, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:03,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:03,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:03,313 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:53:03,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:03,314 INFO L85 PathProgramCache]: Analyzing trace with hash -880985207, now seen corresponding path program 1 times [2022-11-20 10:53:03,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:03,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469467095] [2022-11-20 10:53:03,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:03,317 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 10:53:03,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:03,318 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:03,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:05,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 2788 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:53:05,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:05,856 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 8931 trivial. 0 not checked. [2022-11-20 10:53:05,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:05,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:05,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469467095] [2022-11-20 10:53:05,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469467095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:05,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:05,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:53:05,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073215053] [2022-11-20 10:53:05,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:05,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:53:05,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:05,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:53:05,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:53:05,860 INFO L87 Difference]: Start difference. First operand 22605 states and 31315 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-20 10:53:08,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:08,174 INFO L93 Difference]: Finished difference Result 63394 states and 87999 transitions. [2022-11-20 10:53:08,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:53:08,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 591 [2022-11-20 10:53:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:08,430 INFO L225 Difference]: With dead ends: 63394 [2022-11-20 10:53:08,431 INFO L226 Difference]: Without dead ends: 42456 [2022-11-20 10:53:08,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 589 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 10:53:08,527 INFO L413 NwaCegarLoop]: 7375 mSDtfsCounter, 4104 mSDsluCounter, 4378 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 11753 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:08,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 11753 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:53:08,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42456 states. [2022-11-20 10:53:11,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42456 to 42452. [2022-11-20 10:53:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42452 states, 28586 states have (on average 1.262820961309732) internal successors, (36099), 29280 states have internal predecessors, (36099), 11368 states have call successors, (11368), 2499 states have call predecessors, (11368), 2495 states have return successors, (11408), 11251 states have call predecessors, (11408), 11364 states have call successors, (11408) [2022-11-20 10:53:11,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42452 states to 42452 states and 58875 transitions. [2022-11-20 10:53:11,244 INFO L78 Accepts]: Start accepts. Automaton has 42452 states and 58875 transitions. Word has length 591 [2022-11-20 10:53:11,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:11,245 INFO L495 AbstractCegarLoop]: Abstraction has 42452 states and 58875 transitions. [2022-11-20 10:53:11,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-20 10:53:11,245 INFO L276 IsEmpty]: Start isEmpty. Operand 42452 states and 58875 transitions. [2022-11-20 10:53:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-20 10:53:11,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:11,261 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 44, 44, 44, 44, 44, 44, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:11,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:11,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:11,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:53:11,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:11,485 INFO L85 PathProgramCache]: Analyzing trace with hash 505218187, now seen corresponding path program 1 times [2022-11-20 10:53:11,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:11,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440645365] [2022-11-20 10:53:11,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:11,487 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 10:53:11,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:11,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:11,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:13,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 2788 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 10:53:13,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:14,577 INFO L134 CoverageAnalysis]: Checked inductivity of 9098 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 8796 trivial. 0 not checked. [2022-11-20 10:53:14,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:14,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:14,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440645365] [2022-11-20 10:53:14,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440645365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:14,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:14,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-20 10:53:14,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485374316] [2022-11-20 10:53:14,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:14,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 10:53:14,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:14,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 10:53:14,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-20 10:53:14,580 INFO L87 Difference]: Start difference. First operand 42452 states and 58875 transitions. Second operand has 13 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 5 states have call successors, (57), 3 states have call predecessors, (57), 4 states have return successors, (55), 5 states have call predecessors, (55), 4 states have call successors, (55) [2022-11-20 10:53:50,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:53:50,384 INFO L93 Difference]: Finished difference Result 77467 states and 107321 transitions. [2022-11-20 10:53:50,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-20 10:53:50,385 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 5 states have call successors, (57), 3 states have call predecessors, (57), 4 states have return successors, (55), 5 states have call predecessors, (55), 4 states have call successors, (55) Word has length 591 [2022-11-20 10:53:50,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:53:50,720 INFO L225 Difference]: With dead ends: 77467 [2022-11-20 10:53:50,720 INFO L226 Difference]: Without dead ends: 77447 [2022-11-20 10:53:50,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=144, Invalid=612, Unknown=0, NotChecked=0, Total=756 [2022-11-20 10:53:50,759 INFO L413 NwaCegarLoop]: 7280 mSDtfsCounter, 7849 mSDsluCounter, 67786 mSDsCounter, 0 mSdLazyCounter, 5328 mSolverCounterSat, 1411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7861 SdHoareTripleChecker+Valid, 75066 SdHoareTripleChecker+Invalid, 6739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1411 IncrementalHoareTripleChecker+Valid, 5328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:53:50,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7861 Valid, 75066 Invalid, 6739 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1411 Valid, 5328 Invalid, 0 Unknown, 0 Unchecked, 29.8s Time] [2022-11-20 10:53:51,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77447 states. [2022-11-20 10:53:55,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77447 to 77283. [2022-11-20 10:53:55,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77283 states, 52068 states have (on average 1.2622340016900975) internal successors, (65722), 53319 states have internal predecessors, (65722), 20645 states have call successors, (20645), 4572 states have call predecessors, (20645), 4567 states have return successors, (20723), 20433 states have call predecessors, (20723), 20641 states have call successors, (20723) [2022-11-20 10:53:56,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77283 states to 77283 states and 107090 transitions. [2022-11-20 10:53:56,093 INFO L78 Accepts]: Start accepts. Automaton has 77283 states and 107090 transitions. Word has length 591 [2022-11-20 10:53:56,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:53:56,095 INFO L495 AbstractCegarLoop]: Abstraction has 77283 states and 107090 transitions. [2022-11-20 10:53:56,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 5 states have call successors, (57), 3 states have call predecessors, (57), 4 states have return successors, (55), 5 states have call predecessors, (55), 4 states have call successors, (55) [2022-11-20 10:53:56,095 INFO L276 IsEmpty]: Start isEmpty. Operand 77283 states and 107090 transitions. [2022-11-20 10:53:56,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-11-20 10:53:56,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:53:56,122 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 44, 44, 44, 44, 44, 44, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:53:56,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:56,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:56,337 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:53:56,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:53:56,337 INFO L85 PathProgramCache]: Analyzing trace with hash 8799552, now seen corresponding path program 1 times [2022-11-20 10:53:56,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:53:56,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76825825] [2022-11-20 10:53:56,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:53:56,339 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 10:53:56,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:53:56,340 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:56,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c55727a-8154-401e-9c30-98f5e4d391cb/bin/uautomizer-ug76WZFUDN/mathsat -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 10:53:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:53:58,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 2893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:53:58,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:53:58,696 INFO L134 CoverageAnalysis]: Checked inductivity of 9250 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 8935 trivial. 0 not checked. [2022-11-20 10:53:58,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:53:58,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:53:58,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76825825] [2022-11-20 10:53:58,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76825825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:53:58,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:53:58,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:53:58,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752153949] [2022-11-20 10:53:58,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:53:58,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:53:58,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:53:58,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:53:58,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:53:58,700 INFO L87 Difference]: Start difference. First operand 77283 states and 107090 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-20 10:54:06,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:54:06,193 INFO L93 Difference]: Finished difference Result 189698 states and 263095 transitions. [2022-11-20 10:54:06,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:54:06,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 612 [2022-11-20 10:54:06,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:54:06,858 INFO L225 Difference]: With dead ends: 189698 [2022-11-20 10:54:06,859 INFO L226 Difference]: Without dead ends: 113994 [2022-11-20 10:54:07,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 611 GetRequests, 610 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 10:54:07,121 INFO L413 NwaCegarLoop]: 8410 mSDtfsCounter, 4124 mSDsluCounter, 4380 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4124 SdHoareTripleChecker+Valid, 12790 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:54:07,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4124 Valid, 12790 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:54:07,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113994 states.