./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/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 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:27:35,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:35,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:35,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:35,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:35,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:35,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:35,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:35,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:35,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:35,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:35,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:35,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:35,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:35,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:35,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:35,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:35,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:35,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:35,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:35,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:35,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:35,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:35,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:35,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:35,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:35,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:35,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:35,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:35,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:35,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:35,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:35,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:35,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:35,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:35,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:35,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:35,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:35,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:35,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:35,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:35,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:27:35,969 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:35,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:35,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:35,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:35,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:35,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:35,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:35,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:35,972 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:35,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:35,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:35,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:35,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:35,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:35,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:35,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:35,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:35,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:35,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:35,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:35,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:35,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:35,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:35,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:35,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:35,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:35,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:35,978 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:35,978 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:35,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:35,979 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2022-11-20 09:27:36,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:36,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:36,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:36,291 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:36,291 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:36,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-11-20 09:27:39,437 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:40,239 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:40,240 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-11-20 09:27:40,318 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/data/25840692a/34213742ce6a4cd49026885538738581/FLAG07730562e [2022-11-20 09:27:40,337 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/data/25840692a/34213742ce6a4cd49026885538738581 [2022-11-20 09:27:40,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:40,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:40,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:40,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:40,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:40,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:40" (1/1) ... [2022-11-20 09:27:40,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5568e164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:40, skipping insertion in model container [2022-11-20 09:27:40,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:40" (1/1) ... [2022-11-20 09:27:40,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:40,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:41,261 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 09:27:41,270 INFO L158 Benchmark]: Toolchain (without parser) took 925.34ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 107.2MB in the beginning and 148.8MB in the end (delta: -41.6MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2022-11-20 09:27:41,271 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 169.9MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:27:41,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 918.77ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 106.7MB in the beginning and 148.8MB in the end (delta: -42.1MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2022-11-20 09:27:41,273 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 169.9MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 918.77ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 106.7MB in the beginning and 148.8MB in the end (delta: -42.1MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/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 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:27:43,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:43,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:43,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:43,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:43,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:43,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:43,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:43,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:43,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:43,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:43,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:43,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:43,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:43,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:43,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:43,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:43,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:43,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:43,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:43,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:43,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:43,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:43,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:43,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:43,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:43,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:43,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:43,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:43,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:43,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:43,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:43,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:43,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:43,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:43,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:43,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:43,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:43,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:43,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:43,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:43,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:27:43,540 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:43,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:43,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:43,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:43,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:43,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:43,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:43,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:43,544 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:43,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:43,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:43,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:43,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:43,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:43,546 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:27:43,546 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:27:43,547 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:27:43,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:43,547 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:43,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:43,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:43,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:43,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:43,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:43,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:43,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:43,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:43,550 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:27:43,551 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:27:43,551 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:43,551 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:43,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:43,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:27:43,552 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2022-11-20 09:27:43,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:43,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:43,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:43,991 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:43,993 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:43,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-11-20 09:27:47,447 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:48,231 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:48,232 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-11-20 09:27:48,282 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/data/dc2c79762/52fe9fbb452b4cd6bc3fbd979f20fcec/FLAG4502a864e [2022-11-20 09:27:48,308 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/data/dc2c79762/52fe9fbb452b4cd6bc3fbd979f20fcec [2022-11-20 09:27:48,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:48,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:48,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:48,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:48,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:48,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:48" (1/1) ... [2022-11-20 09:27:48,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522dd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:48, skipping insertion in model container [2022-11-20 09:27:48,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:48" (1/1) ... [2022-11-20 09:27:48,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:48,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:52,486 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2022-11-20 09:27:52,490 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2022-11-20 09:27:52,491 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2022-11-20 09:27:52,492 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2022-11-20 09:27:52,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:52,619 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:27:52,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:53,225 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2022-11-20 09:27:53,226 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2022-11-20 09:27:53,226 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2022-11-20 09:27:53,227 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2022-11-20 09:27:53,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:53,297 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:53,956 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2022-11-20 09:27:53,957 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2022-11-20 09:27:53,957 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_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2022-11-20 09:27:53,958 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2022-11-20 09:27:53,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:54,226 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:54,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54 WrapperNode [2022-11-20 09:27:54,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:54,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:54,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:54,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:54,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:54,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:54,657 INFO L138 Inliner]: procedures = 488, calls = 4700, calls flagged for inlining = 228, calls inlined = 198, statements flattened = 8713 [2022-11-20 09:27:54,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:54,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:54,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:54,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:54,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:54,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:54,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:54,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:55,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:55,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:55,100 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:55,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:55,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:55,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:55,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:55,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:55,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (1/1) ... [2022-11-20 09:27:55,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:55,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:55,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:55,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2022-11-20 09:27:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2022-11-20 09:27:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-20 09:27:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-20 09:27:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2022-11-20 09:27:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2022-11-20 09:27:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2022-11-20 09:27:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2022-11-20 09:27:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:27:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:27:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2022-11-20 09:27:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2022-11-20 09:27:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2022-11-20 09:27:55,271 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2022-11-20 09:27:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:27:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:27:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2022-11-20 09:27:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2022-11-20 09:27:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:27:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:27:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2022-11-20 09:27:55,274 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2022-11-20 09:27:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2022-11-20 09:27:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2022-11-20 09:27:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2022-11-20 09:27:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2022-11-20 09:27:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2022-11-20 09:27:55,275 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2022-11-20 09:27:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2022-11-20 09:27:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2022-11-20 09:27:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2022-11-20 09:27:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2022-11-20 09:27:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 09:27:55,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 09:27:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-20 09:27:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-20 09:27:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 09:27:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 09:27:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:27:55,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:27:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2022-11-20 09:27:55,278 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2022-11-20 09:27:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2022-11-20 09:27:55,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2022-11-20 09:27:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 09:27:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:27:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:27:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:27:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2022-11-20 09:27:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2022-11-20 09:27:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-20 09:27:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-20 09:27:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 09:27:55,280 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 09:27:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2022-11-20 09:27:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2022-11-20 09:27:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2022-11-20 09:27:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2022-11-20 09:27:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2022-11-20 09:27:55,281 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2022-11-20 09:27:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2022-11-20 09:27:55,282 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2022-11-20 09:27:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2022-11-20 09:27:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2022-11-20 09:27:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-11-20 09:27:55,283 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-11-20 09:27:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 09:27:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 09:27:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-20 09:27:55,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-20 09:27:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2022-11-20 09:27:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2022-11-20 09:27:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2022-11-20 09:27:55,285 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2022-11-20 09:27:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 09:27:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 09:27:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 09:27:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 09:27:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2022-11-20 09:27:55,286 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2022-11-20 09:27:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:27:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:27:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2022-11-20 09:27:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2022-11-20 09:27:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2022-11-20 09:27:55,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2022-11-20 09:27:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:27:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2022-11-20 09:27:55,288 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2022-11-20 09:27:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2022-11-20 09:27:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2022-11-20 09:27:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 09:27:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 09:27:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2022-11-20 09:27:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2022-11-20 09:27:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 09:27:55,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 09:27:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2022-11-20 09:27:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2022-11-20 09:27:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:27:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:27:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2022-11-20 09:27:55,294 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2022-11-20 09:27:55,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:27:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:27:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:27:55,295 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2022-11-20 09:27:55,296 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2022-11-20 09:27:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:27:55,297 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2022-11-20 09:27:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2022-11-20 09:27:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-11-20 09:27:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-11-20 09:27:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2022-11-20 09:27:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2022-11-20 09:27:55,303 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 09:27:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 09:27:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2022-11-20 09:27:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2022-11-20 09:27:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-20 09:27:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-20 09:27:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 09:27:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 09:27:55,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:27:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 09:27:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 09:27:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 09:27:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 09:27:55,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:27:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:27:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:27:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:27:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:27:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:27:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:27:55,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:27:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-11-20 09:27:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2022-11-20 09:27:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-20 09:27:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-20 09:27:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2022-11-20 09:27:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2022-11-20 09:27:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:27:55,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:27:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 09:27:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 09:27:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2022-11-20 09:27:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2022-11-20 09:27:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-20 09:27:55,308 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-20 09:27:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2022-11-20 09:27:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2022-11-20 09:27:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-11-20 09:27:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-11-20 09:27:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2022-11-20 09:27:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2022-11-20 09:27:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 09:27:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 09:27:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2022-11-20 09:27:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2022-11-20 09:27:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:27:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:27:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 09:27:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 09:27:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-20 09:27:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-20 09:27:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 09:27:55,311 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 09:27:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2022-11-20 09:27:55,312 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2022-11-20 09:27:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:27:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2022-11-20 09:27:55,313 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2022-11-20 09:27:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2022-11-20 09:27:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2022-11-20 09:27:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2022-11-20 09:27:55,314 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2022-11-20 09:27:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:27:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:27:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:27:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-20 09:27:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-20 09:27:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:27:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:27:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2022-11-20 09:27:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2022-11-20 09:27:55,315 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 09:27:55,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 09:27:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2022-11-20 09:27:55,316 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2022-11-20 09:27:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 09:27:55,316 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 09:27:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 09:27:55,316 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 09:27:55,316 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2022-11-20 09:27:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2022-11-20 09:27:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 09:27:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 09:27:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 09:27:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 09:27:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2022-11-20 09:27:55,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2022-11-20 09:27:55,317 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-11-20 09:27:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-11-20 09:27:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 09:27:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 09:27:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2022-11-20 09:27:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2022-11-20 09:27:55,318 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-20 09:27:55,318 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-20 09:27:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:27:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:27:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2022-11-20 09:27:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2022-11-20 09:27:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:27:55,319 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:27:55,319 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2022-11-20 09:27:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2022-11-20 09:27:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2022-11-20 09:27:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2022-11-20 09:27:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2022-11-20 09:27:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2022-11-20 09:27:55,320 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2022-11-20 09:27:55,320 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2022-11-20 09:27:55,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:27:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:27:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:27:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:27:55,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:27:55,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:27:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2022-11-20 09:27:55,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2022-11-20 09:27:55,326 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-20 09:27:55,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-20 09:27:55,327 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 09:27:55,328 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 09:27:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2022-11-20 09:27:55,328 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2022-11-20 09:27:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 09:27:55,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 09:27:55,328 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 09:27:55,328 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 09:27:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2022-11-20 09:27:55,329 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2022-11-20 09:27:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2022-11-20 09:27:55,329 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2022-11-20 09:27:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2022-11-20 09:27:55,329 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2022-11-20 09:27:55,329 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2022-11-20 09:27:55,329 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2022-11-20 09:27:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2022-11-20 09:27:55,330 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2022-11-20 09:27:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-20 09:27:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-20 09:27:55,330 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-20 09:27:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2022-11-20 09:27:55,330 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2022-11-20 09:27:55,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 09:27:55,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 09:27:56,615 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:56,619 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:28:04,835 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:30:05,863 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 09:30:11,801 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:30:11,832 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:30:11,832 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:30:11,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:11 BoogieIcfgContainer [2022-11-20 09:30:11,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:30:11,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:30:11,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:30:11,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:30:11,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:48" (1/3) ... [2022-11-20 09:30:11,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56cd8843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:11, skipping insertion in model container [2022-11-20 09:30:11,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:54" (2/3) ... [2022-11-20 09:30:11,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56cd8843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:11, skipping insertion in model container [2022-11-20 09:30:11,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:11" (3/3) ... [2022-11-20 09:30:11,847 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2022-11-20 09:30:11,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:30:11,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 09:30:11,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:30:12,001 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;@3d094ee6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:30:12,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 09:30:12,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 2649 states, 1842 states have (on average 1.3051031487513571) internal successors, (2404), 1846 states have internal predecessors, (2404), 689 states have call successors, (689), 116 states have call predecessors, (689), 115 states have return successors, (681), 681 states have call predecessors, (681), 681 states have call successors, (681) [2022-11-20 09:30:12,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2022-11-20 09:30:12,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:12,075 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:12,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:12,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:12,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1434227325, now seen corresponding path program 1 times [2022-11-20 09:30:12,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:12,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007427574] [2022-11-20 09:30:12,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:12,106 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:12,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:12,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:12,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:30:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:16,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 4108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:16,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:16,888 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5670 trivial. 0 not checked. [2022-11-20 09:30:16,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:16,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:16,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007427574] [2022-11-20 09:30:16,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007427574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:16,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:16,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:16,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376040623] [2022-11-20 09:30:16,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:16,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:16,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:16,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:16,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:16,954 INFO L87 Difference]: Start difference. First operand has 2649 states, 1842 states have (on average 1.3051031487513571) internal successors, (2404), 1846 states have internal predecessors, (2404), 689 states have call successors, (689), 116 states have call predecessors, (689), 115 states have return successors, (681), 681 states have call predecessors, (681), 681 states have call successors, (681) Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-20 09:30:18,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:18,715 INFO L93 Difference]: Finished difference Result 7665 states and 11032 transitions. [2022-11-20 09:30:18,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:18,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 430 [2022-11-20 09:30:18,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:18,765 INFO L225 Difference]: With dead ends: 7665 [2022-11-20 09:30:18,766 INFO L226 Difference]: Without dead ends: 5081 [2022-11-20 09:30:18,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:18,789 INFO L413 NwaCegarLoop]: 4377 mSDtfsCounter, 3506 mSDsluCounter, 3690 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3506 SdHoareTripleChecker+Valid, 8067 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:18,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3506 Valid, 8067 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 09:30:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5081 states. [2022-11-20 09:30:19,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5081 to 5077. [2022-11-20 09:30:19,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5077 states, 3559 states have (on average 1.304860915987637) internal successors, (4644), 3566 states have internal predecessors, (4644), 1289 states have call successors, (1289), 227 states have call predecessors, (1289), 226 states have return successors, (1285), 1285 states have call predecessors, (1285), 1285 states have call successors, (1285) [2022-11-20 09:30:19,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5077 states to 5077 states and 7218 transitions. [2022-11-20 09:30:19,214 INFO L78 Accepts]: Start accepts. Automaton has 5077 states and 7218 transitions. Word has length 430 [2022-11-20 09:30:19,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:19,221 INFO L495 AbstractCegarLoop]: Abstraction has 5077 states and 7218 transitions. [2022-11-20 09:30:19,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-11-20 09:30:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5077 states and 7218 transitions. [2022-11-20 09:30:19,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2022-11-20 09:30:19,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:19,249 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:19,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:19,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:19,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:19,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:19,476 INFO L85 PathProgramCache]: Analyzing trace with hash -869224470, now seen corresponding path program 1 times [2022-11-20 09:30:19,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:19,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943632852] [2022-11-20 09:30:19,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:19,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:19,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:19,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:19,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:30:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:23,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 4487 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:23,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-11-20 09:30:24,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:24,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:24,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943632852] [2022-11-20 09:30:24,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943632852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:24,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:24,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:24,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778813793] [2022-11-20 09:30:24,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:24,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:24,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:24,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:24,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:24,407 INFO L87 Difference]: Start difference. First operand 5077 states and 7218 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 09:30:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:26,026 INFO L93 Difference]: Finished difference Result 14851 states and 21116 transitions. [2022-11-20 09:30:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:26,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 488 [2022-11-20 09:30:26,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:26,102 INFO L225 Difference]: With dead ends: 14851 [2022-11-20 09:30:26,102 INFO L226 Difference]: Without dead ends: 9851 [2022-11-20 09:30:26,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:26,131 INFO L413 NwaCegarLoop]: 4357 mSDtfsCounter, 3441 mSDsluCounter, 3700 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3441 SdHoareTripleChecker+Valid, 8057 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:26,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3441 Valid, 8057 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-20 09:30:26,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9851 states. [2022-11-20 09:30:26,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9851 to 9823. [2022-11-20 09:30:26,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9823 states, 6913 states have (on average 1.3062346304064805) internal successors, (9030), 6929 states have internal predecessors, (9030), 2464 states have call successors, (2464), 444 states have call predecessors, (2464), 443 states have return successors, (2460), 2453 states have call predecessors, (2460), 2460 states have call successors, (2460) [2022-11-20 09:30:26,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9823 states to 9823 states and 13954 transitions. [2022-11-20 09:30:26,889 INFO L78 Accepts]: Start accepts. Automaton has 9823 states and 13954 transitions. Word has length 488 [2022-11-20 09:30:26,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:26,891 INFO L495 AbstractCegarLoop]: Abstraction has 9823 states and 13954 transitions. [2022-11-20 09:30:26,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 09:30:26,892 INFO L276 IsEmpty]: Start isEmpty. Operand 9823 states and 13954 transitions. [2022-11-20 09:30:26,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-11-20 09:30:26,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:26,917 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:27,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:27,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:27,139 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:27,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:27,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1394070874, now seen corresponding path program 1 times [2022-11-20 09:30:27,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:27,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012029446] [2022-11-20 09:30:27,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:27,146 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:27,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:27,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:27,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:30:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:31,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 4460 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:31,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-11-20 09:30:31,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:31,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:31,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012029446] [2022-11-20 09:30:31,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012029446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:31,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:31,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:31,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084592253] [2022-11-20 09:30:31,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:31,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:31,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:31,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:31,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:31,906 INFO L87 Difference]: Start difference. First operand 9823 states and 13954 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 09:30:34,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:34,092 INFO L93 Difference]: Finished difference Result 24254 states and 34421 transitions. [2022-11-20 09:30:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:34,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 482 [2022-11-20 09:30:34,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:34,223 INFO L225 Difference]: With dead ends: 24254 [2022-11-20 09:30:34,223 INFO L226 Difference]: Without dead ends: 14508 [2022-11-20 09:30:34,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:34,282 INFO L413 NwaCegarLoop]: 4364 mSDtfsCounter, 3485 mSDsluCounter, 3684 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3485 SdHoareTripleChecker+Valid, 8048 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:34,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3485 Valid, 8048 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 09:30:34,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14508 states. [2022-11-20 09:30:35,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14508 to 14472. [2022-11-20 09:30:35,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14472 states, 10210 states have (on average 1.3047012732615084) internal successors, (13321), 10240 states have internal predecessors, (13321), 3590 states have call successors, (3590), 670 states have call predecessors, (3590), 669 states have return successors, (3586), 3567 states have call predecessors, (3586), 3586 states have call successors, (3586) [2022-11-20 09:30:35,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14472 states to 14472 states and 20497 transitions. [2022-11-20 09:30:35,229 INFO L78 Accepts]: Start accepts. Automaton has 14472 states and 20497 transitions. Word has length 482 [2022-11-20 09:30:35,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:35,230 INFO L495 AbstractCegarLoop]: Abstraction has 14472 states and 20497 transitions. [2022-11-20 09:30:35,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 09:30:35,230 INFO L276 IsEmpty]: Start isEmpty. Operand 14472 states and 20497 transitions. [2022-11-20 09:30:35,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-20 09:30:35,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:35,312 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:35,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:35,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:35,526 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:35,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1703116131, now seen corresponding path program 1 times [2022-11-20 09:30:35,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:35,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048647684] [2022-11-20 09:30:35,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:35,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:35,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:35,538 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:35,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 09:30:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:39,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 4458 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:39,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:40,177 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-11-20 09:30:40,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:40,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:40,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048647684] [2022-11-20 09:30:40,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048647684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:40,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:40,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:40,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471113368] [2022-11-20 09:30:40,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:40,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:40,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:40,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:40,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:40,181 INFO L87 Difference]: Start difference. First operand 14472 states and 20497 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 09:30:42,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:42,618 INFO L93 Difference]: Finished difference Result 38193 states and 54062 transitions. [2022-11-20 09:30:42,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:42,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 480 [2022-11-20 09:30:42,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:42,750 INFO L225 Difference]: With dead ends: 38193 [2022-11-20 09:30:42,750 INFO L226 Difference]: Without dead ends: 23798 [2022-11-20 09:30:42,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:42,806 INFO L413 NwaCegarLoop]: 4456 mSDtfsCounter, 3485 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3485 SdHoareTripleChecker+Valid, 8138 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:42,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3485 Valid, 8138 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 09:30:42,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23798 states. [2022-11-20 09:30:44,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23798 to 23770. [2022-11-20 09:30:44,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23770 states, 16804 states have (on average 1.3034396572244704) internal successors, (21903), 16862 states have internal predecessors, (21903), 5842 states have call successors, (5842), 1122 states have call predecessors, (5842), 1121 states have return successors, (5838), 5795 states have call predecessors, (5838), 5838 states have call successors, (5838) [2022-11-20 09:30:44,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23770 states to 23770 states and 33583 transitions. [2022-11-20 09:30:44,629 INFO L78 Accepts]: Start accepts. Automaton has 23770 states and 33583 transitions. Word has length 480 [2022-11-20 09:30:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:44,631 INFO L495 AbstractCegarLoop]: Abstraction has 23770 states and 33583 transitions. [2022-11-20 09:30:44,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 09:30:44,632 INFO L276 IsEmpty]: Start isEmpty. Operand 23770 states and 33583 transitions. [2022-11-20 09:30:44,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2022-11-20 09:30:44,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:44,648 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 36, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:44,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:44,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:44,871 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:44,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:44,871 INFO L85 PathProgramCache]: Analyzing trace with hash 958120944, now seen corresponding path program 1 times [2022-11-20 09:30:44,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:44,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313392244] [2022-11-20 09:30:44,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:44,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:44,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:44,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:44,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 09:30:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:48,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 4459 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:48,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:49,515 INFO L134 CoverageAnalysis]: Checked inductivity of 5787 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 5679 trivial. 0 not checked. [2022-11-20 09:30:49,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:49,516 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:49,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313392244] [2022-11-20 09:30:49,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313392244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:49,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:49,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:49,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851439206] [2022-11-20 09:30:49,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:49,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:49,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:49,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:49,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:49,519 INFO L87 Difference]: Start difference. First operand 23770 states and 33583 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 09:30:52,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:52,915 INFO L93 Difference]: Finished difference Result 64404 states and 91015 transitions. [2022-11-20 09:30:52,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:52,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 481 [2022-11-20 09:30:52,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:53,256 INFO L225 Difference]: With dead ends: 64404 [2022-11-20 09:30:53,256 INFO L226 Difference]: Without dead ends: 40711 [2022-11-20 09:30:53,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:53,334 INFO L413 NwaCegarLoop]: 4821 mSDtfsCounter, 3485 mSDsluCounter, 3683 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3485 SdHoareTripleChecker+Valid, 8504 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:53,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3485 Valid, 8504 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-20 09:30:53,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40711 states. [2022-11-20 09:30:55,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40711 to 40679. [2022-11-20 09:30:55,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40679 states, 28806 states have (on average 1.30306186211206) internal successors, (37536), 28920 states have internal predecessors, (37536), 9937 states have call successors, (9937), 1934 states have call predecessors, (9937), 1933 states have return successors, (9933), 9842 states have call predecessors, (9933), 9933 states have call successors, (9933) [2022-11-20 09:30:56,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40679 states to 40679 states and 57406 transitions. [2022-11-20 09:30:56,207 INFO L78 Accepts]: Start accepts. Automaton has 40679 states and 57406 transitions. Word has length 481 [2022-11-20 09:30:56,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:56,208 INFO L495 AbstractCegarLoop]: Abstraction has 40679 states and 57406 transitions. [2022-11-20 09:30:56,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (49), 3 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 09:30:56,209 INFO L276 IsEmpty]: Start isEmpty. Operand 40679 states and 57406 transitions. [2022-11-20 09:30:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-11-20 09:30:56,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:56,228 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:56,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:56,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:56,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:56,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:56,451 INFO L85 PathProgramCache]: Analyzing trace with hash -452245489, now seen corresponding path program 1 times [2022-11-20 09:30:56,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:56,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284169090] [2022-11-20 09:30:56,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:56,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:56,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:56,459 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:56,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 09:31:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:00,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 4240 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:31:00,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 6015 trivial. 0 not checked. [2022-11-20 09:31:01,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:01,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:01,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284169090] [2022-11-20 09:31:01,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284169090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:01,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:01,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:31:01,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110419574] [2022-11-20 09:31:01,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:01,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:01,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:01,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:01,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:01,103 INFO L87 Difference]: Start difference. First operand 40679 states and 57406 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 09:31:05,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:05,474 INFO L93 Difference]: Finished difference Result 113267 states and 159997 transitions. [2022-11-20 09:31:05,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:05,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 493 [2022-11-20 09:31:05,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:05,921 INFO L225 Difference]: With dead ends: 113267 [2022-11-20 09:31:05,921 INFO L226 Difference]: Without dead ends: 76273 [2022-11-20 09:31:06,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:06,061 INFO L413 NwaCegarLoop]: 7206 mSDtfsCounter, 3465 mSDsluCounter, 3696 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3465 SdHoareTripleChecker+Valid, 10902 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:06,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3465 Valid, 10902 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-20 09:31:06,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76273 states. [2022-11-20 09:31:10,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76273 to 76269. [2022-11-20 09:31:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76269 states, 54058 states have (on average 1.3036923304598764) internal successors, (70475), 54204 states have internal predecessors, (70475), 18574 states have call successors, (18574), 3635 states have call predecessors, (18574), 3634 states have return successors, (18570), 18463 states have call predecessors, (18570), 18570 states have call successors, (18570) [2022-11-20 09:31:11,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76269 states to 76269 states and 107619 transitions. [2022-11-20 09:31:11,479 INFO L78 Accepts]: Start accepts. Automaton has 76269 states and 107619 transitions. Word has length 493 [2022-11-20 09:31:11,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:11,480 INFO L495 AbstractCegarLoop]: Abstraction has 76269 states and 107619 transitions. [2022-11-20 09:31:11,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-20 09:31:11,480 INFO L276 IsEmpty]: Start isEmpty. Operand 76269 states and 107619 transitions. [2022-11-20 09:31:11,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-11-20 09:31:11,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:11,506 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:11,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:11,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:11,731 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:31:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:11,732 INFO L85 PathProgramCache]: Analyzing trace with hash 249354385, now seen corresponding path program 1 times [2022-11-20 09:31:11,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:11,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320485386] [2022-11-20 09:31:11,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:11,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:11,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:11,738 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:11,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 09:31:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:15,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 4240 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:15,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:28,802 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2022-11-20 09:31:28,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:28,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:28,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320485386] [2022-11-20 09:31:28,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320485386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:28,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:28,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:31:28,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295013266] [2022-11-20 09:31:28,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:28,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:28,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:28,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:28,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:31:28,807 INFO L87 Difference]: Start difference. First operand 76269 states and 107619 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2022-11-20 09:31:33,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:33,220 INFO L93 Difference]: Finished difference Result 76275 states and 107624 transitions. [2022-11-20 09:31:33,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:31:33,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) Word has length 493 [2022-11-20 09:31:33,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:33,552 INFO L225 Difference]: With dead ends: 76275 [2022-11-20 09:31:33,552 INFO L226 Difference]: Without dead ends: 76273 [2022-11-20 09:31:33,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:33,591 INFO L413 NwaCegarLoop]: 3738 mSDtfsCounter, 3572 mSDsluCounter, 7465 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3573 SdHoareTripleChecker+Valid, 11203 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:33,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3573 Valid, 11203 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:31:33,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76273 states. [2022-11-20 09:31:38,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76273 to 76273. [2022-11-20 09:31:38,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76273 states, 54061 states have (on average 1.3036754777011155) internal successors, (70478), 54207 states have internal predecessors, (70478), 18574 states have call successors, (18574), 3636 states have call predecessors, (18574), 3635 states have return successors, (18570), 18463 states have call predecessors, (18570), 18570 states have call successors, (18570) [2022-11-20 09:31:38,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76273 states to 76273 states and 107622 transitions. [2022-11-20 09:31:38,580 INFO L78 Accepts]: Start accepts. Automaton has 76273 states and 107622 transitions. Word has length 493 [2022-11-20 09:31:38,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:38,581 INFO L495 AbstractCegarLoop]: Abstraction has 76273 states and 107622 transitions. [2022-11-20 09:31:38,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 1 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 1 states have call predecessors, (45), 1 states have call successors, (45) [2022-11-20 09:31:38,582 INFO L276 IsEmpty]: Start isEmpty. Operand 76273 states and 107622 transitions. [2022-11-20 09:31:38,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2022-11-20 09:31:38,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:38,604 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 36, 36, 36, 36, 36, 36, 5, 5, 5, 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] [2022-11-20 09:31:38,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:38,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:38,827 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:31:38,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:38,827 INFO L85 PathProgramCache]: Analyzing trace with hash 347293492, now seen corresponding path program 1 times [2022-11-20 09:31:38,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:38,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031835888] [2022-11-20 09:31:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:38,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:38,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:38,834 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:38,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b80fdf9-1846-472b-98aa-1ffc9126d5c9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 09:31:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:42,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 4286 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:31:42,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:43,136 INFO L134 CoverageAnalysis]: Checked inductivity of 6168 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 6021 trivial. 0 not checked. [2022-11-20 09:31:43,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:43,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:43,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031835888] [2022-11-20 09:31:43,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2031835888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:43,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:43,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:31:43,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843962584] [2022-11-20 09:31:43,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:43,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:43,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:43,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:43,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:43,139 INFO L87 Difference]: Start difference. First operand 76273 states and 107622 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49)