./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_fs-nfs-blocklayout-blocklayoutdriver.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/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_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/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_d7cfee84-d932-4784-8ec8-f238f997305b/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 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:28:57,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:57,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:58,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:58,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:58,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:58,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:58,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:58,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:58,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:58,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:58,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:58,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:58,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:58,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:58,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:58,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:58,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:58,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:58,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:58,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:58,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:58,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:58,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:58,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:58,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:58,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:58,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:58,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:58,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:58,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:58,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:58,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:58,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:58,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:58,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:58,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:58,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:58,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:58,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:58,076 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:58,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:28:58,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:58,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:58,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:58,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:58,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:28:58,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:28:58,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:58,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:58,120 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:58,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:58,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:28:58,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:58,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:28:58,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:28:58,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:28:58,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:58,122 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:58,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:28:58,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:58,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:58,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:28:58,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:58,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:58,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:28:58,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:28:58,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:28:58,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:28:58,125 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:28:58,125 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:28:58,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:28:58,125 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_d7cfee84-d932-4784-8ec8-f238f997305b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c [2022-11-20 09:28:58,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:58,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:58,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:58,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:58,473 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:58,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-11-20 09:29:01,502 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:02,288 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:02,288 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-11-20 09:29:02,375 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/data/296196c40/746efc2eedc4433ca1f8afe0534fe358/FLAGc4516ecf1 [2022-11-20 09:29:02,393 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/data/296196c40/746efc2eedc4433ca1f8afe0534fe358 [2022-11-20 09:29:02,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:02,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:02,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:02,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:02,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:02,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:02" (1/1) ... [2022-11-20 09:29:02,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a2c49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:02, skipping insertion in model container [2022-11-20 09:29:02,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:02" (1/1) ... [2022-11-20 09:29:02,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:02,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:03,372 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 09:29:03,380 INFO L158 Benchmark]: Toolchain (without parser) took 980.07ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 72.1MB in the beginning and 123.7MB in the end (delta: -51.6MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2022-11-20 09:29:03,381 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 136.3MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:03,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 977.86ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 72.1MB in the beginning and 123.7MB in the end (delta: -51.6MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2022-11-20 09:29:03,384 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 136.3MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 977.86ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 72.1MB in the beginning and 123.7MB in the end (delta: -51.6MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/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_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/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_d7cfee84-d932-4784-8ec8-f238f997305b/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 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:29:05,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:05,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:05,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:05,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:05,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:05,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:05,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:05,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:05,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:05,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:05,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:05,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:05,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:05,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:05,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:05,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:05,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:05,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:05,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:05,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:05,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:05,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:05,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:05,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:05,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:05,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:05,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:05,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:05,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:05,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:05,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:05,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:05,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:05,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:05,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:05,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:05,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:05,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:05,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:05,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:05,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:29:05,754 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:05,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:05,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:05,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:05,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:05,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:05,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:05,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:05,758 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:05,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:05,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:05,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:05,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:05,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:05,760 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:29:05,760 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:29:05,761 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:29:05,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:05,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:05,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:05,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:05,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:05,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:05,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:05,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:05,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:05,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:05,763 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:29:05,763 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:29:05,764 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:05,764 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:05,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:05,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:29:05,765 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_d7cfee84-d932-4784-8ec8-f238f997305b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfbecd8ca52470a88d05c2ee48bea0bde6dbc2be84932ebcf7050b5532f4c7c [2022-11-20 09:29:06,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:06,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:06,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:06,161 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:06,162 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:06,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-11-20 09:29:09,231 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:10,065 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:10,066 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-11-20 09:29:10,157 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/data/3ba4f7f29/3dd7d9322a414d35ad57b5457eb938ba/FLAG035668a9d [2022-11-20 09:29:10,185 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/data/3ba4f7f29/3dd7d9322a414d35ad57b5457eb938ba [2022-11-20 09:29:10,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:10,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:10,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:10,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:10,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:10,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:10" (1/1) ... [2022-11-20 09:29:10,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26220f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:10, skipping insertion in model container [2022-11-20 09:29:10,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:10" (1/1) ... [2022-11-20 09:29:10,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:10,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:15,056 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2022-11-20 09:29:15,059 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2022-11-20 09:29:15,059 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2022-11-20 09:29:15,060 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2022-11-20 09:29:15,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:15,113 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:29:15,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:15,898 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2022-11-20 09:29:15,898 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2022-11-20 09:29:15,899 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2022-11-20 09:29:15,900 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2022-11-20 09:29:15,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:15,933 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:16,558 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517003,517016] [2022-11-20 09:29:16,559 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517172,517185] [2022-11-20 09:29:16,561 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517339,517352] [2022-11-20 09:29:16,562 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_d7cfee84-d932-4784-8ec8-f238f997305b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i[517507,517520] [2022-11-20 09:29:16,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:16,886 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:16,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16 WrapperNode [2022-11-20 09:29:16,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:16,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:16,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:16,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:16,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,335 INFO L138 Inliner]: procedures = 598, calls = 2495, calls flagged for inlining = 241, calls inlined = 220, statements flattened = 6735 [2022-11-20 09:29:17,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:17,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:17,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:17,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:17,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,593 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:17,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:17,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:17,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:17,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (1/1) ... [2022-11-20 09:29:17,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:17,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:17,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:17,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:17,724 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_parallel [2022-11-20 09:29:17,725 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_parallel [2022-11-20 09:29:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-20 09:29:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-20 09:29:17,725 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-20 09:29:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:29:17,725 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:29:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_commitlist [2022-11-20 09:29:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_commitlist [2022-11-20 09:29:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_put_sb_net [2022-11-20 09:29:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_put_sb_net [2022-11-20 09:29:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-20 09:29:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-20 09:29:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-20 09:29:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-20 09:29:17,727 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_pagelist [2022-11-20 09:29:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_pagelist [2022-11-20 09:29:17,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:29:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:29:17,729 INFO L130 BoogieDeclarations]: Found specification of procedure bio_alloc [2022-11-20 09:29:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_alloc [2022-11-20 09:29:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:29:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 09:29:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_unregister_layoutdriver [2022-11-20 09:29:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_unregister_layoutdriver [2022-11-20 09:29:17,730 INFO L130 BoogieDeclarations]: Found specification of procedure trylock_page [2022-11-20 09:29:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure trylock_page [2022-11-20 09:29:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure submit_bio [2022-11-20 09:29:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_bio [2022-11-20 09:29:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure BLK_LSEG2EXT [2022-11-20 09:29:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure BLK_LSEG2EXT [2022-11-20 09:29:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_unregister_sb [2022-11-20 09:29:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_unregister_sb [2022-11-20 09:29:17,731 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SERVER [2022-11-20 09:29:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SERVER [2022-11-20 09:29:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 09:29:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 09:29:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-20 09:29:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-11-20 09:29:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-11-20 09:29:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure BLK_LO2EXT [2022-11-20 09:29:17,733 INFO L138 BoogieDeclarations]: Found implementation of procedure BLK_LO2EXT [2022-11-20 09:29:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-20 09:29:17,733 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-20 09:29:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 09:29:17,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 09:29:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure print_page [2022-11-20 09:29:17,734 INFO L138 BoogieDeclarations]: Found implementation of procedure print_page [2022-11-20 09:29:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-20 09:29:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:29:17,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:29:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure PageWriteback [2022-11-20 09:29:17,734 INFO L138 BoogieDeclarations]: Found implementation of procedure PageWriteback [2022-11-20 09:29:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:29:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_layout_hdr [2022-11-20 09:29:17,735 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_layout_hdr [2022-11-20 09:29:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure print_clist [2022-11-20 09:29:17,735 INFO L138 BoogieDeclarations]: Found implementation of procedure print_clist [2022-11-20 09:29:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:29:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:29:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:29:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 09:29:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 09:29:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-20 09:29:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-20 09:29:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure zero_user_segments [2022-11-20 09:29:17,736 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_user_segments [2022-11-20 09:29:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 09:29:17,737 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 09:29:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-20 09:29:17,737 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-20 09:29:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-20 09:29:17,737 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-20 09:29:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure bl_alloc_layout_hdr [2022-11-20 09:29:17,738 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_alloc_layout_hdr [2022-11-20 09:29:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure PageDirty [2022-11-20 09:29:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure PageDirty [2022-11-20 09:29:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 09:29:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 09:29:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure is_writable [2022-11-20 09:29:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure is_writable [2022-11-20 09:29:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 09:29:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 09:29:17,739 INFO L130 BoogieDeclarations]: Found specification of procedure normalize [2022-11-20 09:29:17,739 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize [2022-11-20 09:29:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-20 09:29:17,740 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-20 09:29:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-11-20 09:29:17,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-11-20 09:29:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_net_exit [2022-11-20 09:29:17,740 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_net_exit [2022-11-20 09:29:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 09:29:17,741 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 09:29:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_get_sb_net [2022-11-20 09:29:17,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_get_sb_net [2022-11-20 09:29:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure extents_consistent [2022-11-20 09:29:17,741 INFO L138 BoogieDeclarations]: Found implementation of procedure extents_consistent [2022-11-20 09:29:17,741 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-11-20 09:29:17,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-11-20 09:29:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rpc_pipefs_notifier_unregister [2022-11-20 09:29:17,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rpc_pipefs_notifier_unregister [2022-11-20 09:29:17,742 INFO L130 BoogieDeclarations]: Found specification of procedure bl_submit_bio [2022-11-20 09:29:17,744 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_submit_bio [2022-11-20 09:29:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 09:29:17,747 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 09:29:17,747 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_queue_upcall [2022-11-20 09:29:17,747 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_queue_upcall [2022-11-20 09:29:17,748 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-20 09:29:17,748 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-20 09:29:17,749 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-20 09:29:17,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-20 09:29:17,750 INFO L130 BoogieDeclarations]: Found specification of procedure bl_put_extent [2022-11-20 09:29:17,755 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_put_extent [2022-11-20 09:29:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:29:17,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 09:29:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:29:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 09:29:17,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 09:29:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 09:29:17,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 09:29:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 09:29:17,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 09:29:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-20 09:29:17,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-20 09:29:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:29:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_inline_decode [2022-11-20 09:29:17,756 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_inline_decode [2022-11-20 09:29:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:29:17,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:29:17,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:29:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure clean_pnfs_block_layoutupdate [2022-11-20 09:29:17,757 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_pnfs_block_layoutupdate [2022-11-20 09:29:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 09:29:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 09:29:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure bl_alloc_lseg [2022-11-20 09:29:17,757 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_alloc_lseg [2022-11-20 09:29:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 09:29:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:29:17,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:29:17,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 09:29:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure lock_page [2022-11-20 09:29:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_page [2022-11-20 09:29:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure end_page_writeback [2022-11-20 09:29:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure end_page_writeback [2022-11-20 09:29:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure print_elist [2022-11-20 09:29:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure print_elist [2022-11-20 09:29:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-20 09:29:17,758 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-20 09:29:17,758 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-20 09:29:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-20 09:29:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 09:29:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 09:29:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 09:29:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 09:29:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure bl_cleanup_layoutcommit [2022-11-20 09:29:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_cleanup_layoutcommit [2022-11-20 09:29:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure PageLocked [2022-11-20 09:29:17,759 INFO L138 BoogieDeclarations]: Found implementation of procedure PageLocked [2022-11-20 09:29:17,759 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_test [2022-11-20 09:29:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_test [2022-11-20 09:29:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_destroy_pipe_data [2022-11-20 09:29:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_destroy_pipe_data [2022-11-20 09:29:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_parallel [2022-11-20 09:29:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_parallel [2022-11-20 09:29:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 09:29:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 09:29:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 09:29:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure bl_is_sector_init [2022-11-20 09:29:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_is_sector_init [2022-11-20 09:29:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 09:29:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 09:29:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 09:29:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 09:29:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:29:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-11-20 09:29:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-11-20 09:29:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-20 09:29:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-20 09:29:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2022-11-20 09:29:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2022-11-20 09:29:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:29:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure bl_clear_layoutdriver [2022-11-20 09:29:17,762 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_clear_layoutdriver [2022-11-20 09:29:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:29:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 09:29:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 09:29:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 09:29:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:29:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:29:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure bl_pipe_destroy_msg [2022-11-20 09:29:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_pipe_destroy_msg [2022-11-20 09:29:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure bl_read_pagelist [2022-11-20 09:29:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_read_pagelist [2022-11-20 09:29:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:29:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 09:29:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-20 09:29:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-20 09:29:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure print_bl_extent [2022-11-20 09:29:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure print_bl_extent [2022-11-20 09:29:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_read [2022-11-20 09:29:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_read [2022-11-20 09:29:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2022-11-20 09:29:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2022-11-20 09:29:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_encode_hyper [2022-11-20 09:29:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_encode_hyper [2022-11-20 09:29:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure bl_write_cleanup [2022-11-20 09:29:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_write_cleanup [2022-11-20 09:29:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 09:29:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 09:29:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure bl_mark_sectors_init [2022-11-20 09:29:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_mark_sectors_init [2022-11-20 09:29:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 09:29:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 09:29:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure free_blk_mountid [2022-11-20 09:29:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure free_blk_mountid [2022-11-20 09:29:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-20 09:29:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-20 09:29:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure is_range_written [2022-11-20 09:29:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure is_range_written [2022-11-20 09:29:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-20 09:29:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-20 09:29:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:29:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 09:29:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 09:29:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure list_replace [2022-11-20 09:29:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure list_replace [2022-11-20 09:29:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-20 09:29:17,769 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-20 09:29:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:29:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-20 09:29:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-20 09:29:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-20 09:29:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-20 09:29:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure is_aligned_req [2022-11-20 09:29:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure is_aligned_req [2022-11-20 09:29:17,773 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-20 09:29:17,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-20 09:29:17,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:29:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure _prep_new_extent [2022-11-20 09:29:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure _prep_new_extent [2022-11-20 09:29:17,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:29:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:29:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:29:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2022-11-20 09:29:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2022-11-20 09:29:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:29:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure print_short_extent [2022-11-20 09:29:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure print_short_extent [2022-11-20 09:29:17,776 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_I [2022-11-20 09:29:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_I [2022-11-20 09:29:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_reserve_space [2022-11-20 09:29:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_reserve_space [2022-11-20 09:29:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 09:29:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 09:29:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_pipefs_notifier_unregister [2022-11-20 09:29:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_pipefs_notifier_unregister [2022-11-20 09:29:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_im_lock_of_pnfs_inval_markings [2022-11-20 09:29:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_im_lock_of_pnfs_inval_markings [2022-11-20 09:29:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2022-11-20 09:29:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2022-11-20 09:29:17,777 INFO L130 BoogieDeclarations]: Found specification of procedure bl_push_one_short_extent [2022-11-20 09:29:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_push_one_short_extent [2022-11-20 09:29:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 09:29:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 09:29:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 09:29:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 09:29:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 09:29:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 09:29:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2022-11-20 09:29:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2022-11-20 09:29:17,778 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 09:29:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 09:29:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-11-20 09:29:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-11-20 09:29:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure _set_range [2022-11-20 09:29:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure _set_range [2022-11-20 09:29:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure bl_encode_layoutcommit [2022-11-20 09:29:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_encode_layoutcommit [2022-11-20 09:29:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure mark_extents_written [2022-11-20 09:29:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_extents_written [2022-11-20 09:29:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2022-11-20 09:29:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2022-11-20 09:29:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure _add_entry [2022-11-20 09:29:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure _add_entry [2022-11-20 09:29:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure _front_merge [2022-11-20 09:29:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure _front_merge [2022-11-20 09:29:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure do_add_page_to_bio [2022-11-20 09:29:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure do_add_page_to_bio [2022-11-20 09:29:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 09:29:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 09:29:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-11-20 09:29:17,780 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-11-20 09:29:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-11-20 09:29:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-11-20 09:29:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-20 09:29:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-20 09:29:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure bl_find_get_extent [2022-11-20 09:29:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_find_get_extent [2022-11-20 09:29:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure bl_free_lseg [2022-11-20 09:29:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_free_lseg [2022-11-20 09:29:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:29:17,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:29:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-11-20 09:29:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-11-20 09:29:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:29:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 09:29:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:29:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:29:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4blocklayout_register_sb [2022-11-20 09:29:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4blocklayout_register_sb [2022-11-20 09:29:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:29:17,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:29:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-11-20 09:29:17,783 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-11-20 09:29:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_im_lock_of_pnfs_inval_markings [2022-11-20 09:29:17,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_im_lock_of_pnfs_inval_markings [2022-11-20 09:29:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2022-11-20 09:29:17,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2022-11-20 09:29:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure zero_user_segment [2022-11-20 09:29:17,783 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_user_segment [2022-11-20 09:29:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2022-11-20 09:29:17,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2022-11-20 09:29:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_nfs4blocklayout_exit_7_2 [2022-11-20 09:29:17,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_nfs4blocklayout_exit_7_2 [2022-11-20 09:29:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure decode_sector_number [2022-11-20 09:29:17,784 INFO L138 BoogieDeclarations]: Found implementation of procedure decode_sector_number [2022-11-20 09:29:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure bl_read_partial_page_sync [2022-11-20 09:29:17,784 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_read_partial_page_sync [2022-11-20 09:29:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure put_parallel [2022-11-20 09:29:17,784 INFO L138 BoogieDeclarations]: Found implementation of procedure put_parallel [2022-11-20 09:29:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-20 09:29:17,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-20 09:29:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_generic_pg_init_read [2022-11-20 09:29:17,785 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_generic_pg_init_read [2022-11-20 09:29:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write [2022-11-20 09:29:17,785 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write [2022-11-20 09:29:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-11-20 09:29:17,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-11-20 09:29:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-11-20 09:29:17,786 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-11-20 09:29:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-20 09:29:17,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-20 09:29:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2022-11-20 09:29:17,786 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2022-11-20 09:29:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure bio_add_page [2022-11-20 09:29:17,786 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_add_page [2022-11-20 09:29:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 09:29:17,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 09:29:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure release_extents [2022-11-20 09:29:17,787 INFO L138 BoogieDeclarations]: Found implementation of procedure release_extents [2022-11-20 09:29:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-20 09:29:17,787 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-20 09:29:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-11-20 09:29:17,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-11-20 09:29:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 09:29:17,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 09:29:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure bl_do_readpage_sync [2022-11-20 09:29:17,788 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_do_readpage_sync [2022-11-20 09:29:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 09:29:17,788 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 09:29:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure bl_set_layoutdriver [2022-11-20 09:29:17,788 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_set_layoutdriver [2022-11-20 09:29:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure bl_end_io_write_zero [2022-11-20 09:29:17,788 INFO L138 BoogieDeclarations]: Found implementation of procedure bl_end_io_write_zero [2022-11-20 09:29:17,788 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_up [2022-11-20 09:29:17,789 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_up [2022-11-20 09:29:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 09:29:17,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 09:29:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-20 09:29:17,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-20 09:29:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-20 09:29:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-20 09:29:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 09:29:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 09:29:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_set_lo_fail [2022-11-20 09:29:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_set_lo_fail [2022-11-20 09:29:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure set_to_rw [2022-11-20 09:29:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure set_to_rw [2022-11-20 09:29:19,132 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:19,137 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:19,311 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:30:15,227 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 09:30:15,488 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:30:15,509 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:30:15,509 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-20 09:30:15,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:15 BoogieIcfgContainer [2022-11-20 09:30:15,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:30:15,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:30:15,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:30:15,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:30:15,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:29:10" (1/3) ... [2022-11-20 09:30:15,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1158a0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:15, skipping insertion in model container [2022-11-20 09:30:15,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:16" (2/3) ... [2022-11-20 09:30:15,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1158a0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:15, skipping insertion in model container [2022-11-20 09:30:15,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:15" (3/3) ... [2022-11-20 09:30:15,534 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-blocklayout-blocklayoutdriver.cil.i [2022-11-20 09:30:15,553 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:30:15,553 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 09:30:15,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:30:15,701 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;@cff5782, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:30:15,701 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 09:30:15,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 3073 states, 2052 states have (on average 1.3118908382066277) internal successors, (2692), 2101 states have internal predecessors, (2692), 848 states have call successors, (848), 173 states have call predecessors, (848), 172 states have return successors, (841), 826 states have call predecessors, (841), 841 states have call successors, (841) [2022-11-20 09:30:15,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-11-20 09:30:15,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:15,777 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:15,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:15,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:15,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1548499603, now seen corresponding path program 1 times [2022-11-20 09:30:15,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:15,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61331554] [2022-11-20 09:30:15,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:15,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:15,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:15,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:15,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 09:30:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:17,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:17,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5049 trivial. 0 not checked. [2022-11-20 09:30:17,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:17,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:17,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61331554] [2022-11-20 09:30:17,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61331554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:17,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:17,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:17,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454774972] [2022-11-20 09:30:17,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:17,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:17,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:17,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:17,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:17,812 INFO L87 Difference]: Start difference. First operand has 3073 states, 2052 states have (on average 1.3118908382066277) internal successors, (2692), 2101 states have internal predecessors, (2692), 848 states have call successors, (848), 173 states have call predecessors, (848), 172 states have return successors, (841), 826 states have call predecessors, (841), 841 states have call successors, (841) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 09:30:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:18,798 INFO L93 Difference]: Finished difference Result 8831 states and 12933 transitions. [2022-11-20 09:30:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:18,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 406 [2022-11-20 09:30:18,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:18,880 INFO L225 Difference]: With dead ends: 8831 [2022-11-20 09:30:18,880 INFO L226 Difference]: Without dead ends: 5820 [2022-11-20 09:30:18,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:18,923 INFO L413 NwaCegarLoop]: 5010 mSDtfsCounter, 3996 mSDsluCounter, 4156 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3996 SdHoareTripleChecker+Valid, 9166 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:18,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3996 Valid, 9166 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:30:18,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5820 states. [2022-11-20 09:30:19,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5820 to 5816. [2022-11-20 09:30:19,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 3888 states have (on average 1.2865226337448559) internal successors, (5002), 3989 states have internal predecessors, (5002), 1586 states have call successors, (1586), 340 states have call predecessors, (1586), 339 states have return successors, (1582), 1552 states have call predecessors, (1582), 1582 states have call successors, (1582) [2022-11-20 09:30:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 8170 transitions. [2022-11-20 09:30:19,460 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 8170 transitions. Word has length 406 [2022-11-20 09:30:19,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:19,464 INFO L495 AbstractCegarLoop]: Abstraction has 5816 states and 8170 transitions. [2022-11-20 09:30:19,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-20 09:30:19,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 8170 transitions. [2022-11-20 09:30:19,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-11-20 09:30:19,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:19,480 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:19,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:19,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:19,695 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:19,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:19,697 INFO L85 PathProgramCache]: Analyzing trace with hash 92551656, now seen corresponding path program 1 times [2022-11-20 09:30:19,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:19,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17366697] [2022-11-20 09:30:19,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:19,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:19,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:19,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:19,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 09:30:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:21,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:21,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:21,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5049 trivial. 0 not checked. [2022-11-20 09:30:21,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:21,411 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:21,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17366697] [2022-11-20 09:30:21,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17366697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:21,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:21,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:21,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274872312] [2022-11-20 09:30:21,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:21,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:21,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:21,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:21,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:21,415 INFO L87 Difference]: Start difference. First operand 5816 states and 8170 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-20 09:30:22,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:22,301 INFO L93 Difference]: Finished difference Result 14306 states and 20073 transitions. [2022-11-20 09:30:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:22,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 423 [2022-11-20 09:30:22,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:22,359 INFO L225 Difference]: With dead ends: 14306 [2022-11-20 09:30:22,359 INFO L226 Difference]: Without dead ends: 8563 [2022-11-20 09:30:22,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:22,392 INFO L413 NwaCegarLoop]: 5018 mSDtfsCounter, 3951 mSDsluCounter, 4171 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3951 SdHoareTripleChecker+Valid, 9189 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:22,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3951 Valid, 9189 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:30:22,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8563 states. [2022-11-20 09:30:23,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8563 to 8528. [2022-11-20 09:30:23,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 5691 states have (on average 1.2850114215427868) internal successors, (7313), 5843 states have internal predecessors, (7313), 2321 states have call successors, (2321), 514 states have call predecessors, (2321), 513 states have return successors, (2317), 2267 states have call predecessors, (2317), 2317 states have call successors, (2317) [2022-11-20 09:30:23,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 11951 transitions. [2022-11-20 09:30:23,107 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 11951 transitions. Word has length 423 [2022-11-20 09:30:23,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:23,109 INFO L495 AbstractCegarLoop]: Abstraction has 8528 states and 11951 transitions. [2022-11-20 09:30:23,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-20 09:30:23,110 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 11951 transitions. [2022-11-20 09:30:23,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-11-20 09:30:23,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:23,120 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:23,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:23,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:23,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:23,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:23,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1049645897, now seen corresponding path program 1 times [2022-11-20 09:30:23,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:23,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104563104] [2022-11-20 09:30:23,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:23,344 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:23,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:23,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:23,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 09:30:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:24,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1664 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:24,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5049 trivial. 0 not checked. [2022-11-20 09:30:24,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:24,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:24,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104563104] [2022-11-20 09:30:24,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104563104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:24,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:24,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:24,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055228492] [2022-11-20 09:30:24,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:24,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:24,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:24,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:24,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:24,953 INFO L87 Difference]: Start difference. First operand 8528 states and 11951 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-20 09:30:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:25,917 INFO L93 Difference]: Finished difference Result 18070 states and 25217 transitions. [2022-11-20 09:30:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:25,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 422 [2022-11-20 09:30:25,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:25,983 INFO L225 Difference]: With dead ends: 18070 [2022-11-20 09:30:25,984 INFO L226 Difference]: Without dead ends: 9615 [2022-11-20 09:30:26,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:26,022 INFO L413 NwaCegarLoop]: 5714 mSDtfsCounter, 3973 mSDsluCounter, 4170 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3973 SdHoareTripleChecker+Valid, 9884 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:26,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3973 Valid, 9884 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 09:30:26,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9615 states. [2022-11-20 09:30:26,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9615 to 9582. [2022-11-20 09:30:26,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9582 states, 6436 states have (on average 1.278899937849596) internal successors, (8231), 6605 states have internal predecessors, (8231), 2542 states have call successors, (2542), 602 states have call predecessors, (2542), 601 states have return successors, (2538), 2479 states have call predecessors, (2538), 2538 states have call successors, (2538) [2022-11-20 09:30:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 13311 transitions. [2022-11-20 09:30:26,646 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 13311 transitions. Word has length 422 [2022-11-20 09:30:26,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:26,647 INFO L495 AbstractCegarLoop]: Abstraction has 9582 states and 13311 transitions. [2022-11-20 09:30:26,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-11-20 09:30:26,648 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 13311 transitions. [2022-11-20 09:30:26,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-11-20 09:30:26,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:26,660 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:26,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:26,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:26,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:26,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:26,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1692427710, now seen corresponding path program 1 times [2022-11-20 09:30:26,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:26,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305124506] [2022-11-20 09:30:26,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:26,878 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:26,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:26,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:26,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 09:30:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:28,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:30:28,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5390 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 5260 trivial. 0 not checked. [2022-11-20 09:30:28,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:28,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:28,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305124506] [2022-11-20 09:30:28,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305124506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:28,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:28,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:30:28,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682657100] [2022-11-20 09:30:28,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:28,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:28,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:28,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:28,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:28,673 INFO L87 Difference]: Start difference. First operand 9582 states and 13311 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-20 09:30:29,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:29,785 INFO L93 Difference]: Finished difference Result 27299 states and 38054 transitions. [2022-11-20 09:30:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:29,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 461 [2022-11-20 09:30:29,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:29,898 INFO L225 Difference]: With dead ends: 27299 [2022-11-20 09:30:29,898 INFO L226 Difference]: Without dead ends: 18177 [2022-11-20 09:30:29,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:29,942 INFO L413 NwaCegarLoop]: 8149 mSDtfsCounter, 3918 mSDsluCounter, 4192 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3918 SdHoareTripleChecker+Valid, 12341 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:29,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3918 Valid, 12341 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:30:29,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18177 states. [2022-11-20 09:30:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18177 to 18173. [2022-11-20 09:30:31,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18173 states, 12216 states have (on average 1.282170923379175) internal successors, (15663), 12530 states have internal predecessors, (15663), 4827 states have call successors, (4827), 1128 states have call predecessors, (4827), 1127 states have return successors, (4823), 4720 states have call predecessors, (4823), 4823 states have call successors, (4823) [2022-11-20 09:30:31,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18173 states to 18173 states and 25313 transitions. [2022-11-20 09:30:31,437 INFO L78 Accepts]: Start accepts. Automaton has 18173 states and 25313 transitions. Word has length 461 [2022-11-20 09:30:31,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:31,439 INFO L495 AbstractCegarLoop]: Abstraction has 18173 states and 25313 transitions. [2022-11-20 09:30:31,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-20 09:30:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand 18173 states and 25313 transitions. [2022-11-20 09:30:31,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-11-20 09:30:31,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:31,452 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:31,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:31,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:31,676 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 09:30:31,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:31,677 INFO L85 PathProgramCache]: Analyzing trace with hash -306224316, now seen corresponding path program 1 times [2022-11-20 09:30:31,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:31,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325338208] [2022-11-20 09:30:31,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:31,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:31,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:31,681 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:31,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 09:30:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:32,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:32,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:36,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5390 trivial. 0 not checked. [2022-11-20 09:30:36,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:30:36,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:36,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325338208] [2022-11-20 09:30:36,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325338208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:36,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:36,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:30:36,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151231192] [2022-11-20 09:30:36,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:36,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:36,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:36,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:36,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:30:36,607 INFO L87 Difference]: Start difference. First operand 18173 states and 25313 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-11-20 09:30:37,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:37,883 INFO L93 Difference]: Finished difference Result 18179 states and 25318 transitions. [2022-11-20 09:30:37,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:30:37,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 461 [2022-11-20 09:30:37,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:37,964 INFO L225 Difference]: With dead ends: 18179 [2022-11-20 09:30:37,964 INFO L226 Difference]: Without dead ends: 18177 [2022-11-20 09:30:37,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:37,972 INFO L413 NwaCegarLoop]: 4228 mSDtfsCounter, 4071 mSDsluCounter, 8438 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4072 SdHoareTripleChecker+Valid, 12666 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:37,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4072 Valid, 12666 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:37,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18177 states. [2022-11-20 09:30:39,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18177 to 18177. [2022-11-20 09:30:39,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18177 states, 12219 states have (on average 1.282101644979131) internal successors, (15666), 12533 states have internal predecessors, (15666), 4827 states have call successors, (4827), 1129 states have call predecessors, (4827), 1128 states have return successors, (4823), 4720 states have call predecessors, (4823), 4823 states have call successors, (4823) [2022-11-20 09:30:39,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18177 states to 18177 states and 25316 transitions. [2022-11-20 09:30:39,536 INFO L78 Accepts]: Start accepts. Automaton has 18177 states and 25316 transitions. Word has length 461 [2022-11-20 09:30:39,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:39,537 INFO L495 AbstractCegarLoop]: Abstraction has 18177 states and 25316 transitions. [2022-11-20 09:30:39,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-11-20 09:30:39,537 INFO L276 IsEmpty]: Start isEmpty. Operand 18177 states and 25316 transitions. [2022-11-20 09:30:39,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2022-11-20 09:30:39,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:39,549 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:39,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/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)] Ended with exit code 0 [2022-11-20 09:30:39,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:39,772 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:39,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:39,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1129842001, now seen corresponding path program 1 times [2022-11-20 09:30:39,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:39,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016254519] [2022-11-20 09:30:39,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:39,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:39,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:39,775 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:39,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 09:30:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:41,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1681 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:41,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:44,888 INFO L134 CoverageAnalysis]: Checked inductivity of 5392 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5390 trivial. 0 not checked. [2022-11-20 09:30:44,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:46,382 INFO L134 CoverageAnalysis]: Checked inductivity of 5392 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5390 trivial. 0 not checked. [2022-11-20 09:30:46,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:46,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016254519] [2022-11-20 09:30:46,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016254519] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:46,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:46,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:30:46,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110848813] [2022-11-20 09:30:46,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:46,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:46,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:46,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:46,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:46,385 INFO L87 Difference]: Start difference. First operand 18177 states and 25316 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-20 09:30:47,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:47,983 INFO L93 Difference]: Finished difference Result 18183 states and 25321 transitions. [2022-11-20 09:30:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:47,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 466 [2022-11-20 09:30:47,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:48,067 INFO L225 Difference]: With dead ends: 18183 [2022-11-20 09:30:48,067 INFO L226 Difference]: Without dead ends: 18181 [2022-11-20 09:30:48,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 933 GetRequests, 925 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:30:48,078 INFO L413 NwaCegarLoop]: 4231 mSDtfsCounter, 4109 mSDsluCounter, 8437 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4125 SdHoareTripleChecker+Valid, 12668 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:48,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4125 Valid, 12668 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:48,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18181 states. [2022-11-20 09:30:49,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18181 to 18181. [2022-11-20 09:30:49,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18181 states, 12222 states have (on average 1.2820324005891017) internal successors, (15669), 12536 states have internal predecessors, (15669), 4827 states have call successors, (4827), 1130 states have call predecessors, (4827), 1129 states have return successors, (4823), 4720 states have call predecessors, (4823), 4823 states have call successors, (4823) [2022-11-20 09:30:49,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18181 states to 18181 states and 25319 transitions. [2022-11-20 09:30:49,869 INFO L78 Accepts]: Start accepts. Automaton has 18181 states and 25319 transitions. Word has length 466 [2022-11-20 09:30:49,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:30:49,870 INFO L495 AbstractCegarLoop]: Abstraction has 18181 states and 25319 transitions. [2022-11-20 09:30:49,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-20 09:30:49,871 INFO L276 IsEmpty]: Start isEmpty. Operand 18181 states and 25319 transitions. [2022-11-20 09:30:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2022-11-20 09:30:49,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:30:49,883 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 34, 34, 34, 34, 34, 34, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:49,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:50,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:50,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:30:50,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:50,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1631151588, now seen corresponding path program 1 times [2022-11-20 09:30:50,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:30:50,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559844312] [2022-11-20 09:30:50,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:50,102 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:30:50,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:30:50,104 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:30:50,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 09:30:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:51,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 1688 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:30:51,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 5398 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5394 trivial. 0 not checked. [2022-11-20 09:30:55,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:56,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5398 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5394 trivial. 0 not checked. [2022-11-20 09:30:56,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:30:56,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559844312] [2022-11-20 09:30:56,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559844312] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:56,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:30:56,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:30:56,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626804753] [2022-11-20 09:30:56,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:56,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:30:56,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:30:56,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:30:56,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:56,707 INFO L87 Difference]: Start difference. First operand 18181 states and 25319 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-20 09:30:58,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:30:58,358 INFO L93 Difference]: Finished difference Result 18187 states and 25324 transitions. [2022-11-20 09:30:58,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:58,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 471 [2022-11-20 09:30:58,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:30:58,443 INFO L225 Difference]: With dead ends: 18187 [2022-11-20 09:30:58,443 INFO L226 Difference]: Without dead ends: 18185 [2022-11-20 09:30:58,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 943 GetRequests, 935 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:30:58,453 INFO L413 NwaCegarLoop]: 4231 mSDtfsCounter, 4109 mSDsluCounter, 8437 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4124 SdHoareTripleChecker+Valid, 12668 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:30:58,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4124 Valid, 12668 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:30:58,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18185 states. [2022-11-20 09:31:00,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18185 to 18185. [2022-11-20 09:31:00,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18185 states, 12225 states have (on average 1.2819631901840491) internal successors, (15672), 12539 states have internal predecessors, (15672), 4827 states have call successors, (4827), 1131 states have call predecessors, (4827), 1130 states have return successors, (4823), 4720 states have call predecessors, (4823), 4823 states have call successors, (4823) [2022-11-20 09:31:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18185 states to 18185 states and 25322 transitions. [2022-11-20 09:31:00,286 INFO L78 Accepts]: Start accepts. Automaton has 18185 states and 25322 transitions. Word has length 471 [2022-11-20 09:31:00,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:00,287 INFO L495 AbstractCegarLoop]: Abstraction has 18185 states and 25322 transitions. [2022-11-20 09:31:00,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-20 09:31:00,287 INFO L276 IsEmpty]: Start isEmpty. Operand 18185 states and 25322 transitions. [2022-11-20 09:31:00,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2022-11-20 09:31:00,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:00,294 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 34, 34, 34, 34, 34, 34, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:00,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:00,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:00,507 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:31:00,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:00,508 INFO L85 PathProgramCache]: Analyzing trace with hash -530527345, now seen corresponding path program 1 times [2022-11-20 09:31:00,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:00,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488020893] [2022-11-20 09:31:00,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:00,511 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:00,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:00,512 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:00,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 09:31:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:01,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 1695 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:02,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 5408 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 5402 trivial. 0 not checked. [2022-11-20 09:31:05,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:07,191 INFO L134 CoverageAnalysis]: Checked inductivity of 5408 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5402 trivial. 0 not checked. [2022-11-20 09:31:07,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:07,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488020893] [2022-11-20 09:31:07,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488020893] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:07,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:07,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:31:07,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530316904] [2022-11-20 09:31:07,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:07,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:07,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:07,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:07,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:07,194 INFO L87 Difference]: Start difference. First operand 18185 states and 25322 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-20 09:31:08,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:08,923 INFO L93 Difference]: Finished difference Result 22791 states and 31557 transitions. [2022-11-20 09:31:08,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:08,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 476 [2022-11-20 09:31:08,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:09,034 INFO L225 Difference]: With dead ends: 22791 [2022-11-20 09:31:09,034 INFO L226 Difference]: Without dead ends: 22789 [2022-11-20 09:31:09,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 953 GetRequests, 945 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:09,048 INFO L413 NwaCegarLoop]: 4911 mSDtfsCounter, 3913 mSDsluCounter, 11029 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3927 SdHoareTripleChecker+Valid, 15940 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:09,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3927 Valid, 15940 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:31:09,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22789 states. [2022-11-20 09:31:10,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22789 to 22773. [2022-11-20 09:31:10,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22773 states, 15138 states have (on average 1.2784383670233848) internal successors, (19353), 15620 states have internal predecessors, (19353), 6009 states have call successors, (6009), 1654 states have call predecessors, (6009), 1623 states have return successors, (6179), 5770 states have call predecessors, (6179), 6005 states have call successors, (6179) [2022-11-20 09:31:11,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22773 states to 22773 states and 31541 transitions. [2022-11-20 09:31:11,094 INFO L78 Accepts]: Start accepts. Automaton has 22773 states and 31541 transitions. Word has length 476 [2022-11-20 09:31:11,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:11,095 INFO L495 AbstractCegarLoop]: Abstraction has 22773 states and 31541 transitions. [2022-11-20 09:31:11,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-20 09:31:11,095 INFO L276 IsEmpty]: Start isEmpty. Operand 22773 states and 31541 transitions. [2022-11-20 09:31:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2022-11-20 09:31:11,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:11,103 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 34, 34, 34, 34, 34, 34, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:11,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:11,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:11,319 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:31:11,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:11,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1056592004, now seen corresponding path program 1 times [2022-11-20 09:31:11,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:11,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4712869] [2022-11-20 09:31:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:11,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:11,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:11,324 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:11,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 09:31:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:12,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 1702 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:12,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:16,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5422 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 5414 trivial. 0 not checked. [2022-11-20 09:31:16,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 5422 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5414 trivial. 0 not checked. [2022-11-20 09:31:17,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:17,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4712869] [2022-11-20 09:31:17,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4712869] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:17,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:17,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:31:17,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970715180] [2022-11-20 09:31:17,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:17,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:17,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:17,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:17,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:17,773 INFO L87 Difference]: Start difference. First operand 22773 states and 31541 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-20 09:31:19,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:19,789 INFO L93 Difference]: Finished difference Result 22901 states and 31649 transitions. [2022-11-20 09:31:19,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:19,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 481 [2022-11-20 09:31:19,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:19,878 INFO L225 Difference]: With dead ends: 22901 [2022-11-20 09:31:19,878 INFO L226 Difference]: Without dead ends: 22899 [2022-11-20 09:31:19,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 963 GetRequests, 955 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:19,890 INFO L413 NwaCegarLoop]: 4232 mSDtfsCounter, 4086 mSDsluCounter, 8478 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4099 SdHoareTripleChecker+Valid, 12710 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:19,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4099 Valid, 12710 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:31:19,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22899 states. [2022-11-20 09:31:22,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22899 to 22897. [2022-11-20 09:31:22,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22897 states, 15225 states have (on average 1.2772413793103448) internal successors, (19446), 15707 states have internal predecessors, (19446), 6015 states have call successors, (6015), 1685 states have call predecessors, (6015), 1654 states have return successors, (6185), 5776 states have call predecessors, (6185), 6011 states have call successors, (6185) [2022-11-20 09:31:22,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22897 states to 22897 states and 31646 transitions. [2022-11-20 09:31:22,238 INFO L78 Accepts]: Start accepts. Automaton has 22897 states and 31646 transitions. Word has length 481 [2022-11-20 09:31:22,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:22,239 INFO L495 AbstractCegarLoop]: Abstraction has 22897 states and 31646 transitions. [2022-11-20 09:31:22,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-20 09:31:22,239 INFO L276 IsEmpty]: Start isEmpty. Operand 22897 states and 31646 transitions. [2022-11-20 09:31:22,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-11-20 09:31:22,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:22,247 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 34, 34, 34, 34, 34, 34, 6, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:22,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/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 09:31:22,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:22,452 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 09:31:22,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:22,453 INFO L85 PathProgramCache]: Analyzing trace with hash -102517649, now seen corresponding path program 1 times [2022-11-20 09:31:22,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:22,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228740387] [2022-11-20 09:31:22,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:22,456 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:22,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:22,457 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/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 09:31:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:23,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1709 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:23,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 5440 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5430 trivial. 0 not checked. [2022-11-20 09:31:27,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:28,858 INFO L134 CoverageAnalysis]: Checked inductivity of 5440 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5430 trivial. 0 not checked. [2022-11-20 09:31:28,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:28,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228740387] [2022-11-20 09:31:28,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228740387] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:28,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:28,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:31:28,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651695722] [2022-11-20 09:31:28,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:28,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:28,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:28,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:28,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:28,861 INFO L87 Difference]: Start difference. First operand 22897 states and 31646 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-20 09:31:31,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:31,112 INFO L93 Difference]: Finished difference Result 22903 states and 31651 transitions. [2022-11-20 09:31:31,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:31,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 486 [2022-11-20 09:31:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:31,194 INFO L225 Difference]: With dead ends: 22903 [2022-11-20 09:31:31,194 INFO L226 Difference]: Without dead ends: 22901 [2022-11-20 09:31:31,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 973 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 09:31:31,204 INFO L413 NwaCegarLoop]: 4231 mSDtfsCounter, 4109 mSDsluCounter, 8437 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4121 SdHoareTripleChecker+Valid, 12668 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:31,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4121 Valid, 12668 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:31:31,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22901 states. [2022-11-20 09:31:33,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22901 to 22901. [2022-11-20 09:31:33,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22901 states, 15228 states have (on average 1.2771867612293144) internal successors, (19449), 15710 states have internal predecessors, (19449), 6015 states have call successors, (6015), 1686 states have call predecessors, (6015), 1655 states have return successors, (6185), 5776 states have call predecessors, (6185), 6011 states have call successors, (6185) [2022-11-20 09:31:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22901 states to 22901 states and 31649 transitions. [2022-11-20 09:31:33,816 INFO L78 Accepts]: Start accepts. Automaton has 22901 states and 31649 transitions. Word has length 486 [2022-11-20 09:31:33,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:33,817 INFO L495 AbstractCegarLoop]: Abstraction has 22901 states and 31649 transitions. [2022-11-20 09:31:33,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-20 09:31:33,817 INFO L276 IsEmpty]: Start isEmpty. Operand 22901 states and 31649 transitions. [2022-11-20 09:31:33,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-11-20 09:31:33,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:33,825 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 34, 34, 34, 34, 34, 34, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:33,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/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)] Ended with exit code 0 [2022-11-20 09:31:34,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:34,031 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 09:31:34,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:34,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1967549286, now seen corresponding path program 1 times [2022-11-20 09:31:34,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:34,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871414944] [2022-11-20 09:31:34,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:34,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:34,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:34,034 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:34,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/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 09:31:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:35,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:31:35,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 5336 trivial. 0 not checked. [2022-11-20 09:31:35,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:31:35,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:35,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871414944] [2022-11-20 09:31:35,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871414944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:35,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:35,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:31:35,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970755009] [2022-11-20 09:31:35,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:35,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:31:35,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:35,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:31:35,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:35,463 INFO L87 Difference]: Start difference. First operand 22901 states and 31649 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-20 09:31:39,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:39,163 INFO L93 Difference]: Finished difference Result 56341 states and 77955 transitions. [2022-11-20 09:31:39,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:31:39,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 516 [2022-11-20 09:31:39,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:31:39,311 INFO L225 Difference]: With dead ends: 56341 [2022-11-20 09:31:39,311 INFO L226 Difference]: Without dead ends: 33900 [2022-11-20 09:31:39,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:31:39,415 INFO L413 NwaCegarLoop]: 8167 mSDtfsCounter, 3965 mSDsluCounter, 4194 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3965 SdHoareTripleChecker+Valid, 12361 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 09:31:39,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3965 Valid, 12361 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 09:31:39,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33900 states. [2022-11-20 09:31:43,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33900 to 33848. [2022-11-20 09:31:43,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33848 states, 22509 states have (on average 1.2781109778310897) internal successors, (28769), 23220 states have internal predecessors, (28769), 8894 states have call successors, (8894), 2488 states have call predecessors, (8894), 2442 states have return successors, (9151), 8545 states have call predecessors, (9151), 8890 states have call successors, (9151) [2022-11-20 09:31:43,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33848 states to 33848 states and 46814 transitions. [2022-11-20 09:31:43,508 INFO L78 Accepts]: Start accepts. Automaton has 33848 states and 46814 transitions. Word has length 516 [2022-11-20 09:31:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:31:43,509 INFO L495 AbstractCegarLoop]: Abstraction has 33848 states and 46814 transitions. [2022-11-20 09:31:43,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-20 09:31:43,510 INFO L276 IsEmpty]: Start isEmpty. Operand 33848 states and 46814 transitions. [2022-11-20 09:31:43,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2022-11-20 09:31:43,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:31:43,518 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 34, 34, 34, 34, 34, 34, 7, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:43,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:43,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:43,731 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:31:43,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:43,731 INFO L85 PathProgramCache]: Analyzing trace with hash 696263460, now seen corresponding path program 1 times [2022-11-20 09:31:43,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:31:43,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113650077] [2022-11-20 09:31:43,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:43,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:31:43,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:31:43,734 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 09:31:43,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfee84-d932-4784-8ec8-f238f997305b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 09:31:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:45,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 1716 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:31:45,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5462 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 5450 trivial. 0 not checked. [2022-11-20 09:31:48,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:50,232 INFO L134 CoverageAnalysis]: Checked inductivity of 5462 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5450 trivial. 0 not checked. [2022-11-20 09:31:50,233 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:31:50,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113650077] [2022-11-20 09:31:50,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113650077] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:50,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:31:50,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 09:31:50,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059947975] [2022-11-20 09:31:50,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:50,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:31:50,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:31:50,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:31:50,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:50,236 INFO L87 Difference]: Start difference. First operand 33848 states and 46814 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)