./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.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_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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_9ae2711a-1a7b-461f-b450-ee25c039df29/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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- 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 12:39:48,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:39:48,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:39:48,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:39:48,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:39:48,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:39:48,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:39:48,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:39:48,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:39:48,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:39:48,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:39:48,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:39:48,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:39:48,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:39:48,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:39:48,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:39:48,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:39:48,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:39:48,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:39:48,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:39:48,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:39:48,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:39:48,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:39:48,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:39:48,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:39:48,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:39:48,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:39:48,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:39:48,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:39:48,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:39:48,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:39:48,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:39:48,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:39:48,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:39:48,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:39:48,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:39:48,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:39:48,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:39:48,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:39:48,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:39:48,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:39:48,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:39:48,421 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:39:48,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:39:48,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:39:48,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:39:48,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:39:48,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:39:48,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:39:48,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:39:48,424 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:39:48,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:39:48,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:39:48,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:39:48,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:39:48,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:39:48,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:39:48,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:39:48,425 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:39:48,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:39:48,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:39:48,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:39:48,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:39:48,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:39:48,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:39:48,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:39:48,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:39:48,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:39:48,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:39:48,428 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:39:48,428 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:39:48,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:39:48,428 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_9ae2711a-1a7b-461f-b450-ee25c039df29/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2022-11-20 12:39:48,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:39:48,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:39:48,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:39:48,746 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:39:48,747 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:39:48,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-11-20 12:39:52,019 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:39:52,805 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:39:52,806 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-11-20 12:39:52,890 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/data/c27ea200f/b0a7cb9933da4a278af2f4b3bd7a23aa/FLAG9bbca1246 [2022-11-20 12:39:52,918 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/data/c27ea200f/b0a7cb9933da4a278af2f4b3bd7a23aa [2022-11-20 12:39:52,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:39:52,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:39:52,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:39:52,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:39:52,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:39:52,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:39:52" (1/1) ... [2022-11-20 12:39:52,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d676cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:39:52, skipping insertion in model container [2022-11-20 12:39:52,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:39:52" (1/1) ... [2022-11-20 12:39:52,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:39:53,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:39:53,953 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 12:39:53,964 INFO L158 Benchmark]: Toolchain (without parser) took 1035.34ms. Allocated memory was 146.8MB in the beginning and 213.9MB in the end (delta: 67.1MB). Free memory was 89.3MB in the beginning and 143.6MB in the end (delta: -54.2MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-11-20 12:39:53,964 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 146.8MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:39:53,966 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1028.63ms. Allocated memory was 146.8MB in the beginning and 213.9MB in the end (delta: 67.1MB). Free memory was 88.9MB in the beginning and 143.6MB in the end (delta: -54.7MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-11-20 12:39:53,968 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 146.8MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1028.63ms. Allocated memory was 146.8MB in the beginning and 213.9MB in the end (delta: 67.1MB). Free memory was 88.9MB in the beginning and 143.6MB in the end (delta: -54.7MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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_9ae2711a-1a7b-461f-b450-ee25c039df29/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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- 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 12:39:56,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:39:56,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:39:56,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:39:56,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:39:56,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:39:56,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:39:56,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:39:56,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:39:56,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:39:56,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:39:56,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:39:56,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:39:56,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:39:56,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:39:56,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:39:56,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:39:56,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:39:56,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:39:56,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:39:56,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:39:56,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:39:56,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:39:56,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:39:56,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:39:56,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:39:56,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:39:56,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:39:56,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:39:56,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:39:56,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:39:56,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:39:56,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:39:56,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:39:56,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:39:56,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:39:56,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:39:56,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:39:56,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:39:56,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:39:56,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:39:56,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:39:56,797 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:39:56,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:39:56,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:39:56,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:39:56,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:39:56,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:39:56,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:39:56,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:39:56,803 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:39:56,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:39:56,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:39:56,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:39:56,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:39:56,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:39:56,806 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:39:56,806 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:39:56,806 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:39:56,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:39:56,807 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:39:56,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:39:56,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:39:56,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:39:56,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:39:56,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:39:56,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:39:56,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:39:56,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:39:56,810 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:39:56,810 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:39:56,810 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:39:56,811 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:39:56,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:39:56,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:39:56,812 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_9ae2711a-1a7b-461f-b450-ee25c039df29/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2022-11-20 12:39:57,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:39:57,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:39:57,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:39:57,261 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:39:57,261 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:39:57,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-11-20 12:40:00,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:40:01,584 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:40:01,585 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-11-20 12:40:01,646 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/data/4df96be1c/a6813afefa4d4cccad57dda9c5ef4774/FLAG2957f6800 [2022-11-20 12:40:01,668 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/data/4df96be1c/a6813afefa4d4cccad57dda9c5ef4774 [2022-11-20 12:40:01,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:40:01,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:40:01,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:40:01,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:40:01,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:40:01,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:40:01" (1/1) ... [2022-11-20 12:40:01,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fa3eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:01, skipping insertion in model container [2022-11-20 12:40:01,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:40:01" (1/1) ... [2022-11-20 12:40:01,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:40:01,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:40:05,066 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2022-11-20 12:40:05,070 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2022-11-20 12:40:05,071 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2022-11-20 12:40:05,071 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2022-11-20 12:40:05,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:40:05,151 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:40:05,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:40:05,725 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2022-11-20 12:40:05,725 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2022-11-20 12:40:05,726 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2022-11-20 12:40:05,727 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2022-11-20 12:40:05,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:40:05,771 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:40:06,208 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2022-11-20 12:40:06,209 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2022-11-20 12:40:06,209 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2022-11-20 12:40:06,209 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_9ae2711a-1a7b-461f-b450-ee25c039df29/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2022-11-20 12:40:06,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:40:06,541 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:40:06,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06 WrapperNode [2022-11-20 12:40:06,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:40:06,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:40:06,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:40:06,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:40:06,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:06,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:06,877 INFO L138 Inliner]: procedures = 463, calls = 1956, calls flagged for inlining = 238, calls inlined = 222, statements flattened = 4989 [2022-11-20 12:40:06,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:40:06,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:40:06,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:40:06,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:40:06,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:06,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:06,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:06,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:07,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:07,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:07,174 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:07,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:07,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:40:07,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:40:07,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:40:07,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:40:07,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (1/1) ... [2022-11-20 12:40:07,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:40:07,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:40:07,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:40:07,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:40:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2022-11-20 12:40:07,344 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2022-11-20 12:40:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-20 12:40:07,345 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-20 12:40:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 12:40:07,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 12:40:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:40:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:40:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 12:40:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 12:40:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 12:40:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 12:40:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:40:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:40:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:40:07,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:40:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 12:40:07,349 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 12:40:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 12:40:07,351 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 12:40:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 12:40:07,352 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 12:40:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2022-11-20 12:40:07,352 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2022-11-20 12:40:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-20 12:40:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-20 12:40:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_75 [2022-11-20 12:40:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_75 [2022-11-20 12:40:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-11-20 12:40:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-11-20 12:40:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 12:40:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 12:40:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 12:40:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 12:40:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2022-11-20 12:40:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2022-11-20 12:40:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 12:40:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 12:40:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 12:40:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 12:40:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 12:40:07,356 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 12:40:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 12:40:07,357 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 12:40:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 12:40:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 12:40:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 12:40:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 12:40:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2022-11-20 12:40:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2022-11-20 12:40:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2022-11-20 12:40:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2022-11-20 12:40:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2022-11-20 12:40:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2022-11-20 12:40:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 12:40:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 12:40:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:40:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 12:40:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:40:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:40:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:40:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2022-11-20 12:40:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2022-11-20 12:40:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2022-11-20 12:40:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2022-11-20 12:40:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 12:40:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 12:40:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sis900_private [2022-11-20 12:40:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sis900_private [2022-11-20 12:40:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 12:40:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 12:40:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 12:40:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 12:40:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2022-11-20 12:40:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2022-11-20 12:40:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-20 12:40:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-20 12:40:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sis900_private [2022-11-20 12:40:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sis900_private [2022-11-20 12:40:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 12:40:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 12:40:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 12:40:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 12:40:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 12:40:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 12:40:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 12:40:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 12:40:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 12:40:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 12:40:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2022-11-20 12:40:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2022-11-20 12:40:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2022-11-20 12:40:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2022-11-20 12:40:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:40:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:40:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:40:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 12:40:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 12:40:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 12:40:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 12:40:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:40:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 12:40:07,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 12:40:07,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:40:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-20 12:40:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-20 12:40:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_open [2022-11-20 12:40:07,378 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_open [2022-11-20 12:40:07,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:40:07,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:40:07,380 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_nway_reset [2022-11-20 12:40:07,380 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_nway_reset [2022-11-20 12:40:07,385 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 12:40:07,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 12:40:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 12:40:07,386 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 12:40:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 12:40:07,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 12:40:07,386 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 12:40:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 12:40:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:40:07,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:40:07,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:40:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_close [2022-11-20 12:40:07,388 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_close [2022-11-20 12:40:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:40:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:40:07,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:40:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:40:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:40:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:40:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:40:07,389 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 12:40:07,389 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 12:40:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 12:40:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 12:40:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2022-11-20 12:40:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2022-11-20 12:40:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 12:40:07,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 12:40:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 12:40:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 12:40:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 12:40:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 12:40:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 12:40:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 12:40:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-20 12:40:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-20 12:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-20 12:40:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-20 12:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 12:40:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 12:40:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_74 [2022-11-20 12:40:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_74 [2022-11-20 12:40:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:40:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 12:40:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 12:40:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2022-11-20 12:40:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2022-11-20 12:40:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:40:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:40:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:40:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:40:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:40:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-20 12:40:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-20 12:40:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 12:40:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 12:40:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 12:40:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 12:40:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2022-11-20 12:40:07,397 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2022-11-20 12:40:07,397 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-20 12:40:07,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-20 12:40:07,398 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-20 12:40:07,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-20 12:40:07,399 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2022-11-20 12:40:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2022-11-20 12:40:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 12:40:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 12:40:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 12:40:07,400 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 12:40:07,400 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-20 12:40:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-20 12:40:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 12:40:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 12:40:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 12:40:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 12:40:07,401 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2022-11-20 12:40:07,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2022-11-20 12:40:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:40:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:40:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2022-11-20 12:40:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2022-11-20 12:40:07,402 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2022-11-20 12:40:07,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2022-11-20 12:40:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2022-11-20 12:40:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2022-11-20 12:40:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 12:40:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 12:40:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 12:40:07,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 12:40:07,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-20 12:40:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-20 12:40:07,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 12:40:07,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 12:40:08,477 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:40:08,481 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:40:09,051 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:40:42,201 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 12:40:42,409 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:40:42,441 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:40:42,442 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:40:42,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:40:42 BoogieIcfgContainer [2022-11-20 12:40:42,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:40:42,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:40:42,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:40:42,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:40:42,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:40:01" (1/3) ... [2022-11-20 12:40:42,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf4806b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:40:42, skipping insertion in model container [2022-11-20 12:40:42,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:06" (2/3) ... [2022-11-20 12:40:42,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf4806b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:40:42, skipping insertion in model container [2022-11-20 12:40:42,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:40:42" (3/3) ... [2022-11-20 12:40:42,460 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2022-11-20 12:40:42,483 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:40:42,483 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 12:40:42,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:40:42,625 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;@4e823434, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:40:42,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 12:40:42,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 1925 states, 1304 states have (on average 1.26840490797546) internal successors, (1654), 1331 states have internal predecessors, (1654), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) [2022-11-20 12:40:42,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-20 12:40:42,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:42,687 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:42,688 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 12:40:42,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:42,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1825384733, now seen corresponding path program 1 times [2022-11-20 12:40:42,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:40:42,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712002550] [2022-11-20 12:40:42,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:42,719 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 12:40:42,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:40:42,729 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:42,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:44,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:40:44,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:44,425 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-11-20 12:40:44,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:40:44,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:40:44,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712002550] [2022-11-20 12:40:44,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712002550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:44,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:44,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:40:44,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024804376] [2022-11-20 12:40:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:44,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:40:44,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:40:44,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:40:44,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:40:44,488 INFO L87 Difference]: Start difference. First operand has 1925 states, 1304 states have (on average 1.26840490797546) internal successors, (1654), 1331 states have internal predecessors, (1654), 526 states have call successors, (526), 93 states have call predecessors, (526), 92 states have return successors, (520), 512 states have call predecessors, (520), 520 states have call successors, (520) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:40:45,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:45,382 INFO L93 Difference]: Finished difference Result 5627 states and 8012 transitions. [2022-11-20 12:40:45,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:40:45,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2022-11-20 12:40:45,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:45,449 INFO L225 Difference]: With dead ends: 5627 [2022-11-20 12:40:45,449 INFO L226 Difference]: Without dead ends: 3719 [2022-11-20 12:40:45,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:40:45,482 INFO L413 NwaCegarLoop]: 3177 mSDtfsCounter, 2550 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2550 SdHoareTripleChecker+Valid, 5811 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:45,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2550 Valid, 5811 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:40:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2022-11-20 12:40:45,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 3715. [2022-11-20 12:40:45,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3715 states, 2535 states have (on average 1.26232741617357) internal successors, (3200), 2588 states have internal predecessors, (3200), 997 states have call successors, (997), 181 states have call predecessors, (997), 180 states have return successors, (993), 977 states have call predecessors, (993), 993 states have call successors, (993) [2022-11-20 12:40:46,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3715 states to 3715 states and 5190 transitions. [2022-11-20 12:40:46,009 INFO L78 Accepts]: Start accepts. Automaton has 3715 states and 5190 transitions. Word has length 149 [2022-11-20 12:40:46,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:46,015 INFO L495 AbstractCegarLoop]: Abstraction has 3715 states and 5190 transitions. [2022-11-20 12:40:46,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:40:46,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3715 states and 5190 transitions. [2022-11-20 12:40:46,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-11-20 12:40:46,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:46,032 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:46,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:46,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:46,246 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 12:40:46,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:46,247 INFO L85 PathProgramCache]: Analyzing trace with hash 993340112, now seen corresponding path program 1 times [2022-11-20 12:40:46,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:40:46,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2137461229] [2022-11-20 12:40:46,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:46,250 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 12:40:46,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:40:46,276 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:46,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:47,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:40:47,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:47,856 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-11-20 12:40:47,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:40:47,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:40:47,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2137461229] [2022-11-20 12:40:47,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2137461229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:47,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:47,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:40:47,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232341002] [2022-11-20 12:40:47,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:47,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:40:47,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:40:47,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:40:47,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:40:47,862 INFO L87 Difference]: Start difference. First operand 3715 states and 5190 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 12:40:48,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:48,691 INFO L93 Difference]: Finished difference Result 10959 states and 15322 transitions. [2022-11-20 12:40:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:40:48,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 153 [2022-11-20 12:40:48,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:48,765 INFO L225 Difference]: With dead ends: 10959 [2022-11-20 12:40:48,765 INFO L226 Difference]: Without dead ends: 7271 [2022-11-20 12:40:48,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:40:48,792 INFO L413 NwaCegarLoop]: 3188 mSDtfsCounter, 2595 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 5777 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:48,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2595 Valid, 5777 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:40:48,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7271 states. [2022-11-20 12:40:49,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7271 to 7242. [2022-11-20 12:40:49,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 4952 states have (on average 1.2639337641357027) internal successors, (6259), 5060 states have internal predecessors, (6259), 1932 states have call successors, (1932), 360 states have call predecessors, (1932), 355 states have return successors, (1934), 1883 states have call predecessors, (1934), 1928 states have call successors, (1934) [2022-11-20 12:40:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 10125 transitions. [2022-11-20 12:40:49,409 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 10125 transitions. Word has length 153 [2022-11-20 12:40:49,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:49,410 INFO L495 AbstractCegarLoop]: Abstraction has 7242 states and 10125 transitions. [2022-11-20 12:40:49,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 12:40:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 10125 transitions. [2022-11-20 12:40:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 12:40:49,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:49,414 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:40:49,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:49,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:49,639 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 12:40:49,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:49,640 INFO L85 PathProgramCache]: Analyzing trace with hash 426033970, now seen corresponding path program 1 times [2022-11-20 12:40:49,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:40:49,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783625414] [2022-11-20 12:40:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:49,643 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 12:40:49,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:40:49,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:49,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:51,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:40:51,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:51,166 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2022-11-20 12:40:51,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:40:51,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:40:51,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783625414] [2022-11-20 12:40:51,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783625414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:51,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:51,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:40:51,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165374958] [2022-11-20 12:40:51,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:51,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:40:51,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:40:51,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:40:51,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:40:51,168 INFO L87 Difference]: Start difference. First operand 7242 states and 10125 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:40:52,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:52,334 INFO L93 Difference]: Finished difference Result 20478 states and 28637 transitions. [2022-11-20 12:40:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:40:52,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 156 [2022-11-20 12:40:52,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:52,465 INFO L225 Difference]: With dead ends: 20478 [2022-11-20 12:40:52,466 INFO L226 Difference]: Without dead ends: 13263 [2022-11-20 12:40:52,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:40:52,523 INFO L413 NwaCegarLoop]: 3122 mSDtfsCounter, 2213 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 5694 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:52,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 5694 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:40:52,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13263 states. [2022-11-20 12:40:53,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13263 to 13232. [2022-11-20 12:40:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13232 states, 8962 states have (on average 1.2623298370899352) internal successors, (11313), 9168 states have internal predecessors, (11313), 3584 states have call successors, (3584), 694 states have call predecessors, (3584), 683 states have return successors, (3594), 3487 states have call predecessors, (3594), 3580 states have call successors, (3594) [2022-11-20 12:40:53,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13232 states to 13232 states and 18491 transitions. [2022-11-20 12:40:53,805 INFO L78 Accepts]: Start accepts. Automaton has 13232 states and 18491 transitions. Word has length 156 [2022-11-20 12:40:53,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:53,806 INFO L495 AbstractCegarLoop]: Abstraction has 13232 states and 18491 transitions. [2022-11-20 12:40:53,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:40:53,807 INFO L276 IsEmpty]: Start isEmpty. Operand 13232 states and 18491 transitions. [2022-11-20 12:40:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-20 12:40:53,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:53,811 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:53,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:54,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:54,032 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 12:40:54,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:54,033 INFO L85 PathProgramCache]: Analyzing trace with hash 129724448, now seen corresponding path program 1 times [2022-11-20 12:40:54,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:40:54,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077966195] [2022-11-20 12:40:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:54,036 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 12:40:54,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:40:54,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:54,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:55,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 1278 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:40:55,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:55,673 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2022-11-20 12:40:55,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:40:55,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:40:55,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077966195] [2022-11-20 12:40:55,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1077966195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:55,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:55,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:40:55,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910998571] [2022-11-20 12:40:55,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:55,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:40:55,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:40:55,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:40:55,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:40:55,676 INFO L87 Difference]: Start difference. First operand 13232 states and 18491 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 12:40:56,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:40:56,784 INFO L93 Difference]: Finished difference Result 23622 states and 32953 transitions. [2022-11-20 12:40:56,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:40:56,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 165 [2022-11-20 12:40:56,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:40:56,859 INFO L225 Difference]: With dead ends: 23622 [2022-11-20 12:40:56,860 INFO L226 Difference]: Without dead ends: 10417 [2022-11-20 12:40:56,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:40:56,930 INFO L413 NwaCegarLoop]: 3725 mSDtfsCounter, 1507 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 6330 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:40:56,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 6330 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:40:56,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-11-20 12:40:57,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 10386. [2022-11-20 12:40:57,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10386 states, 7108 states have (on average 1.262521102982555) internal successors, (8974), 7261 states have internal predecessors, (8974), 2702 states have call successors, (2702), 583 states have call predecessors, (2702), 573 states have return successors, (2705), 2623 states have call predecessors, (2705), 2698 states have call successors, (2705) [2022-11-20 12:40:57,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10386 states to 10386 states and 14381 transitions. [2022-11-20 12:40:57,811 INFO L78 Accepts]: Start accepts. Automaton has 10386 states and 14381 transitions. Word has length 165 [2022-11-20 12:40:57,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:40:57,812 INFO L495 AbstractCegarLoop]: Abstraction has 10386 states and 14381 transitions. [2022-11-20 12:40:57,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-20 12:40:57,813 INFO L276 IsEmpty]: Start isEmpty. Operand 10386 states and 14381 transitions. [2022-11-20 12:40:57,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-20 12:40:57,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:40:57,819 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:40:57,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:58,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:58,044 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:40:58,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:40:58,044 INFO L85 PathProgramCache]: Analyzing trace with hash -79330593, now seen corresponding path program 1 times [2022-11-20 12:40:58,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:40:58,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062451450] [2022-11-20 12:40:58,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:40:58,047 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 12:40:58,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:40:58,049 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:58,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:40:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:40:59,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:40:59,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:40:59,477 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2022-11-20 12:40:59,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:40:59,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:40:59,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062451450] [2022-11-20 12:40:59,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062451450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:40:59,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:40:59,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:40:59,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352842061] [2022-11-20 12:40:59,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:40:59,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:40:59,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:40:59,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:40:59,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:40:59,480 INFO L87 Difference]: Start difference. First operand 10386 states and 14381 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 12:41:00,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:00,920 INFO L93 Difference]: Finished difference Result 29893 states and 41432 transitions. [2022-11-20 12:41:00,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:41:00,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 205 [2022-11-20 12:41:00,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:01,033 INFO L225 Difference]: With dead ends: 29893 [2022-11-20 12:41:01,034 INFO L226 Difference]: Without dead ends: 19887 [2022-11-20 12:41:01,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:41:01,082 INFO L413 NwaCegarLoop]: 3600 mSDtfsCounter, 2514 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2514 SdHoareTripleChecker+Valid, 6243 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:01,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2514 Valid, 6243 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:41:01,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19887 states. [2022-11-20 12:41:02,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19887 to 19883. [2022-11-20 12:41:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19883 states, 13640 states have (on average 1.2631231671554253) internal successors, (17229), 13914 states have internal predecessors, (17229), 5145 states have call successors, (5145), 1110 states have call predecessors, (5145), 1095 states have return successors, (5155), 5020 states have call predecessors, (5155), 5141 states have call successors, (5155) [2022-11-20 12:41:02,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19883 states to 19883 states and 27529 transitions. [2022-11-20 12:41:02,696 INFO L78 Accepts]: Start accepts. Automaton has 19883 states and 27529 transitions. Word has length 205 [2022-11-20 12:41:02,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:02,697 INFO L495 AbstractCegarLoop]: Abstraction has 19883 states and 27529 transitions. [2022-11-20 12:41:02,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-20 12:41:02,698 INFO L276 IsEmpty]: Start isEmpty. Operand 19883 states and 27529 transitions. [2022-11-20 12:41:02,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-20 12:41:02,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:02,703 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:02,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:02,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:02,927 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 12:41:02,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:02,928 INFO L85 PathProgramCache]: Analyzing trace with hash 61218017, now seen corresponding path program 1 times [2022-11-20 12:41:02,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:41:02,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204546106] [2022-11-20 12:41:02,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:02,930 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 12:41:02,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:41:02,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:02,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:04,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:41:04,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:41:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-11-20 12:41:05,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:41:05,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:41:05,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204546106] [2022-11-20 12:41:05,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204546106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:41:05,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:41:05,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:41:05,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391556479] [2022-11-20 12:41:05,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:05,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:41:05,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:41:05,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:41:05,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:41:05,419 INFO L87 Difference]: Start difference. First operand 19883 states and 27529 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-20 12:41:06,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:06,886 INFO L93 Difference]: Finished difference Result 19889 states and 27534 transitions. [2022-11-20 12:41:06,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:41:06,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 205 [2022-11-20 12:41:06,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:06,996 INFO L225 Difference]: With dead ends: 19889 [2022-11-20 12:41:06,997 INFO L226 Difference]: Without dead ends: 19887 [2022-11-20 12:41:07,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:41:07,009 INFO L413 NwaCegarLoop]: 2667 mSDtfsCounter, 2583 mSDsluCounter, 5322 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 7989 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:07,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2584 Valid, 7989 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:41:07,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19887 states. [2022-11-20 12:41:08,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19887 to 19887. [2022-11-20 12:41:08,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19887 states, 13643 states have (on average 1.2630653082166678) internal successors, (17232), 13917 states have internal predecessors, (17232), 5145 states have call successors, (5145), 1111 states have call predecessors, (5145), 1096 states have return successors, (5155), 5020 states have call predecessors, (5155), 5141 states have call successors, (5155) [2022-11-20 12:41:08,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19887 states to 19887 states and 27532 transitions. [2022-11-20 12:41:08,658 INFO L78 Accepts]: Start accepts. Automaton has 19887 states and 27532 transitions. Word has length 205 [2022-11-20 12:41:08,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:08,664 INFO L495 AbstractCegarLoop]: Abstraction has 19887 states and 27532 transitions. [2022-11-20 12:41:08,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-20 12:41:08,664 INFO L276 IsEmpty]: Start isEmpty. Operand 19887 states and 27532 transitions. [2022-11-20 12:41:08,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-20 12:41:08,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:08,671 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:08,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:08,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:08,895 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 12:41:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:08,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1830720799, now seen corresponding path program 1 times [2022-11-20 12:41:08,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:41:08,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41575800] [2022-11-20 12:41:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:08,898 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 12:41:08,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:41:08,901 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:08,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:10,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:41:10,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:41:11,326 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-11-20 12:41:11,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:41:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 679 trivial. 0 not checked. [2022-11-20 12:41:11,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:41:11,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41575800] [2022-11-20 12:41:11,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41575800] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:41:11,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:41:11,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 12:41:11,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54659231] [2022-11-20 12:41:11,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:11,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:41:11,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:41:11,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:41:11,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:41:11,891 INFO L87 Difference]: Start difference. First operand 19887 states and 27532 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 12:41:13,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:13,435 INFO L93 Difference]: Finished difference Result 19893 states and 27537 transitions. [2022-11-20 12:41:13,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:41:13,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 210 [2022-11-20 12:41:13,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:13,537 INFO L225 Difference]: With dead ends: 19893 [2022-11-20 12:41:13,537 INFO L226 Difference]: Without dead ends: 19891 [2022-11-20 12:41:13,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:41:13,548 INFO L413 NwaCegarLoop]: 2670 mSDtfsCounter, 2603 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2613 SdHoareTripleChecker+Valid, 7991 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:13,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2613 Valid, 7991 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:41:13,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19891 states. [2022-11-20 12:41:14,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19891 to 19891. [2022-11-20 12:41:14,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19891 states, 13646 states have (on average 1.2630074747178661) internal successors, (17235), 13920 states have internal predecessors, (17235), 5145 states have call successors, (5145), 1112 states have call predecessors, (5145), 1097 states have return successors, (5155), 5020 states have call predecessors, (5155), 5141 states have call successors, (5155) [2022-11-20 12:41:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19891 states to 19891 states and 27535 transitions. [2022-11-20 12:41:15,056 INFO L78 Accepts]: Start accepts. Automaton has 19891 states and 27535 transitions. Word has length 210 [2022-11-20 12:41:15,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:15,057 INFO L495 AbstractCegarLoop]: Abstraction has 19891 states and 27535 transitions. [2022-11-20 12:41:15,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-20 12:41:15,058 INFO L276 IsEmpty]: Start isEmpty. Operand 19891 states and 27535 transitions. [2022-11-20 12:41:15,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-20 12:41:15,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:15,063 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:15,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:15,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:15,287 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 12:41:15,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:15,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1578806113, now seen corresponding path program 1 times [2022-11-20 12:41:15,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:41:15,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816656215] [2022-11-20 12:41:15,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:15,289 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 12:41:15,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:41:15,291 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:15,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:16,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 1296 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:41:16,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:41:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-11-20 12:41:17,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:41:18,133 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-11-20 12:41:18,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:41:18,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816656215] [2022-11-20 12:41:18,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816656215] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:41:18,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:41:18,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 12:41:18,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638785112] [2022-11-20 12:41:18,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:18,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:41:18,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:41:18,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:41:18,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:41:18,137 INFO L87 Difference]: Start difference. First operand 19891 states and 27535 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:41:19,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:19,936 INFO L93 Difference]: Finished difference Result 19897 states and 27540 transitions. [2022-11-20 12:41:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:41:19,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 215 [2022-11-20 12:41:19,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:20,038 INFO L225 Difference]: With dead ends: 19897 [2022-11-20 12:41:20,038 INFO L226 Difference]: Without dead ends: 19895 [2022-11-20 12:41:20,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:41:20,053 INFO L413 NwaCegarLoop]: 2670 mSDtfsCounter, 2603 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2612 SdHoareTripleChecker+Valid, 7991 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:20,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2612 Valid, 7991 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:41:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19895 states. [2022-11-20 12:41:22,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19895 to 19895. [2022-11-20 12:41:22,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19895 states, 13649 states have (on average 1.2629496666422448) internal successors, (17238), 13923 states have internal predecessors, (17238), 5145 states have call successors, (5145), 1113 states have call predecessors, (5145), 1098 states have return successors, (5155), 5020 states have call predecessors, (5155), 5141 states have call successors, (5155) [2022-11-20 12:41:22,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19895 states to 19895 states and 27538 transitions. [2022-11-20 12:41:22,259 INFO L78 Accepts]: Start accepts. Automaton has 19895 states and 27538 transitions. Word has length 215 [2022-11-20 12:41:22,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:22,260 INFO L495 AbstractCegarLoop]: Abstraction has 19895 states and 27538 transitions. [2022-11-20 12:41:22,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-20 12:41:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 19895 states and 27538 transitions. [2022-11-20 12:41:22,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-20 12:41:22,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:22,267 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 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] [2022-11-20 12:41:22,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:41:22,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:22,483 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:41:22,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:22,484 INFO L85 PathProgramCache]: Analyzing trace with hash 320601377, now seen corresponding path program 1 times [2022-11-20 12:41:22,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:41:22,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609407492] [2022-11-20 12:41:22,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:22,486 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 12:41:22,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:41:22,487 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:22,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:41:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:23,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:41:23,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:41:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-11-20 12:41:24,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:41:24,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:41:24,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609407492] [2022-11-20 12:41:24,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609407492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:41:24,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:41:24,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:41:24,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76808981] [2022-11-20 12:41:24,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:24,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:41:24,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:41:24,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:41:24,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:41:24,045 INFO L87 Difference]: Start difference. First operand 19895 states and 27538 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-20 12:41:26,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:26,656 INFO L93 Difference]: Finished difference Result 48949 states and 67799 transitions. [2022-11-20 12:41:26,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:41:26,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 232 [2022-11-20 12:41:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:26,811 INFO L225 Difference]: With dead ends: 48949 [2022-11-20 12:41:26,812 INFO L226 Difference]: Without dead ends: 29434 [2022-11-20 12:41:26,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:41:26,917 INFO L413 NwaCegarLoop]: 5196 mSDtfsCounter, 2544 mSDsluCounter, 2645 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2544 SdHoareTripleChecker+Valid, 7841 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:26,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2544 Valid, 7841 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:41:26,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29434 states. [2022-11-20 12:41:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29434 to 29400. [2022-11-20 12:41:29,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29400 states, 20189 states have (on average 1.2631135767001833) internal successors, (25501), 20584 states have internal predecessors, (25501), 7588 states have call successors, (7588), 1640 states have call predecessors, (7588), 1620 states have return successors, (7605), 7417 states have call predecessors, (7605), 7584 states have call successors, (7605) [2022-11-20 12:41:29,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29400 states to 29400 states and 40694 transitions. [2022-11-20 12:41:29,872 INFO L78 Accepts]: Start accepts. Automaton has 29400 states and 40694 transitions. Word has length 232 [2022-11-20 12:41:29,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:29,873 INFO L495 AbstractCegarLoop]: Abstraction has 29400 states and 40694 transitions. [2022-11-20 12:41:29,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-20 12:41:29,874 INFO L276 IsEmpty]: Start isEmpty. Operand 29400 states and 40694 transitions. [2022-11-20 12:41:29,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-20 12:41:29,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:29,879 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:29,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:41:30,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:30,091 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:41:30,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:30,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1510390241, now seen corresponding path program 1 times [2022-11-20 12:41:30,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:41:30,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568966332] [2022-11-20 12:41:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:30,093 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 12:41:30,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:41:30,094 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:30,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 12:41:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:31,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:41:31,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:41:32,445 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2022-11-20 12:41:32,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:41:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2022-11-20 12:41:32,917 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:41:32,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568966332] [2022-11-20 12:41:32,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568966332] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:41:32,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:41:32,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 12:41:32,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743563568] [2022-11-20 12:41:32,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:32,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:41:32,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:41:32,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:41:32,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:41:32,919 INFO L87 Difference]: Start difference. First operand 29400 states and 40694 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:41:35,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:35,822 INFO L93 Difference]: Finished difference Result 29406 states and 40699 transitions. [2022-11-20 12:41:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:41:35,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 220 [2022-11-20 12:41:35,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:35,914 INFO L225 Difference]: With dead ends: 29406 [2022-11-20 12:41:35,914 INFO L226 Difference]: Without dead ends: 29404 [2022-11-20 12:41:35,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:41:35,925 INFO L413 NwaCegarLoop]: 2670 mSDtfsCounter, 2603 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2611 SdHoareTripleChecker+Valid, 7991 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:35,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2611 Valid, 7991 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:41:35,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29404 states. [2022-11-20 12:41:38,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29404 to 29404. [2022-11-20 12:41:38,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29404 states, 20192 states have (on average 1.2630744849445326) internal successors, (25504), 20587 states have internal predecessors, (25504), 7588 states have call successors, (7588), 1641 states have call predecessors, (7588), 1621 states have return successors, (7605), 7417 states have call predecessors, (7605), 7584 states have call successors, (7605) [2022-11-20 12:41:38,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29404 states to 29404 states and 40697 transitions. [2022-11-20 12:41:38,506 INFO L78 Accepts]: Start accepts. Automaton has 29404 states and 40697 transitions. Word has length 220 [2022-11-20 12:41:38,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:38,507 INFO L495 AbstractCegarLoop]: Abstraction has 29404 states and 40697 transitions. [2022-11-20 12:41:38,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-20 12:41:38,508 INFO L276 IsEmpty]: Start isEmpty. Operand 29404 states and 40697 transitions. [2022-11-20 12:41:38,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-20 12:41:38,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:38,513 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:38,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:41:38,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:38,739 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:41:38,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:38,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1484731935, now seen corresponding path program 1 times [2022-11-20 12:41:38,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:41:38,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705776154] [2022-11-20 12:41:38,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:38,741 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 12:41:38,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:41:38,742 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/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 12:41:38,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae2711a-1a7b-461f-b450-ee25c039df29/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 12:41:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:40,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1310 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:41:40,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:41:41,010 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-11-20 12:41:41,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:41:41,503 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2022-11-20 12:41:41,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:41:41,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705776154] [2022-11-20 12:41:41,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705776154] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 12:41:41,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:41:41,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 12:41:41,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288489991] [2022-11-20 12:41:41,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:41,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:41:41,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:41:41,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:41:41,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:41:41,506 INFO L87 Difference]: Start difference. First operand 29404 states and 40697 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-20 12:41:44,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:44,354 INFO L93 Difference]: Finished difference Result 29410 states and 40702 transitions. [2022-11-20 12:41:44,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:41:44,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 225 [2022-11-20 12:41:44,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:44,457 INFO L225 Difference]: With dead ends: 29410 [2022-11-20 12:41:44,457 INFO L226 Difference]: Without dead ends: 29408 [2022-11-20 12:41:44,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:41:44,471 INFO L413 NwaCegarLoop]: 2670 mSDtfsCounter, 2603 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2610 SdHoareTripleChecker+Valid, 7991 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:44,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2610 Valid, 7991 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:41:44,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29408 states.