./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 --- 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 09:29:46,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:46,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:46,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:46,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:46,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:47,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:47,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:47,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:47,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:47,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:47,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:47,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:47,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:47,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:47,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:47,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:47,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:47,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:47,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:47,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:47,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:47,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:47,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:47,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:47,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:47,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:47,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:47,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:47,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:47,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:47,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:47,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:47,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:47,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:47,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:47,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:47,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:47,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:47,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:47,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:47,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 09:29:47,113 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:47,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:47,114 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:47,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:47,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:47,115 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:47,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:47,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:47,117 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:47,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:47,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:29:47,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:47,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:47,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:47,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:47,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:47,120 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:47,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:47,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:47,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:47,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:47,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:47,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:47,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:47,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:47,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:29:47,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:29:47,123 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:47,123 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:47,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:47,123 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 [2022-11-20 09:29:47,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:47,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:47,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:47,434 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:47,435 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:47,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 09:29:50,802 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:51,766 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:51,766 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 09:29:51,847 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/data/0746afe77/e1f2c4d4a4b340b98ea8464bdd19f319/FLAG71e971391 [2022-11-20 09:29:51,870 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/data/0746afe77/e1f2c4d4a4b340b98ea8464bdd19f319 [2022-11-20 09:29:51,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:51,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:51,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:51,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:51,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:51,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:51" (1/1) ... [2022-11-20 09:29:51,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c21d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:51, skipping insertion in model container [2022-11-20 09:29:51,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:51" (1/1) ... [2022-11-20 09:29:51,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:52,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:53,296 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 09:29:53,308 INFO L158 Benchmark]: Toolchain (without parser) took 1430.16ms. Allocated memory is still 151.0MB. Free memory was 91.8MB in the beginning and 90.1MB in the end (delta: 1.6MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-11-20 09:29:53,309 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 61.3MB in the beginning and 61.1MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:53,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1423.64ms. Allocated memory is still 151.0MB. Free memory was 91.3MB in the beginning and 90.1MB in the end (delta: 1.2MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-11-20 09:29:53,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory was 61.3MB in the beginning and 61.1MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1423.64ms. Allocated memory is still 151.0MB. Free memory was 91.3MB in the beginning and 90.1MB in the end (delta: 1.2MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 --- 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 09:29:55,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:55,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:55,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:55,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:55,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:55,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:55,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:55,966 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:55,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:55,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:55,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:55,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:55,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:55,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:55,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:55,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:55,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:55,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:55,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:55,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:55,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:55,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:55,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:55,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:55,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:56,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:56,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:56,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:56,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:56,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:56,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:56,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:56,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:56,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:56,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:56,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:56,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:56,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:56,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:56,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:56,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 09:29:56,069 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:56,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:56,074 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:56,075 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:56,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:56,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:56,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:56,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:56,079 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:56,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:56,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:56,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:56,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:56,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:56,082 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:29:56,082 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 09:29:56,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 09:29:56,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:56,083 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:56,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:56,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:56,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:56,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:56,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:56,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:56,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:56,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:56,087 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 09:29:56,087 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 09:29:56,087 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:56,088 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:56,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:56,089 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 09:29:56,089 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 [2022-11-20 09:29:56,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:56,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:56,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:56,717 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:56,718 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:56,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 09:30:00,327 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:30:01,273 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:30:01,273 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 09:30:01,378 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/data/7a74c8904/a2e6c6bb8c9543c6a95921dd764afb70/FLAG75eac83f5 [2022-11-20 09:30:01,403 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/data/7a74c8904/a2e6c6bb8c9543c6a95921dd764afb70 [2022-11-20 09:30:01,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:30:01,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:30:01,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:30:01,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:30:01,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:30:01,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:01" (1/1) ... [2022-11-20 09:30:01,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d200289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:01, skipping insertion in model container [2022-11-20 09:30:01,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:01" (1/1) ... [2022-11-20 09:30:01,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:30:01,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:30:07,032 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2022-11-20 09:30:07,037 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2022-11-20 09:30:07,038 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2022-11-20 09:30:07,039 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2022-11-20 09:30:07,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:07,263 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 09:30:07,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:30:08,152 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2022-11-20 09:30:08,153 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2022-11-20 09:30:08,153 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2022-11-20 09:30:08,154 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2022-11-20 09:30:08,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:08,273 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:30:09,288 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_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2022-11-20 09:30:09,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2022-11-20 09:30:09,289 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2022-11-20 09:30:09,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2022-11-20 09:30:09,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:09,608 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:30:09,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09 WrapperNode [2022-11-20 09:30:09,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:30:09,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:30:09,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:30:09,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:30:09,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:09,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:10,127 INFO L138 Inliner]: procedures = 501, calls = 4163, calls flagged for inlining = 274, calls inlined = 263, statements flattened = 8380 [2022-11-20 09:30:10,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:30:10,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:30:10,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:30:10,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:30:10,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:10,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:10,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:10,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:10,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:10,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:10,784 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:10,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:10,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:30:10,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:30:10,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:30:10,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:30:10,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (1/1) ... [2022-11-20 09:30:11,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:30:11,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:11,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:30:11,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:30:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-11-20 09:30:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-11-20 09:30:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 09:30:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 09:30:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-11-20 09:30:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-11-20 09:30:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_unregister_video [2022-11-20 09:30:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_unregister_video [2022-11-20 09:30:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-11-20 09:30:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-11-20 09:30:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 09:30:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 09:30:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_input [2022-11-20 09:30:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_input [2022-11-20 09:30:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-20 09:30:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-20 09:30:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-11-20 09:30:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-11-20 09:30:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 09:30:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 09:30:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2022-11-20 09:30:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2022-11-20 09:30:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvaudio [2022-11-20 09:30:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvaudio [2022-11-20 09:30:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~C_INT [2022-11-20 09:30:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~C_INT [2022-11-20 09:30:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_vid_ctrl [2022-11-20 09:30:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_vid_ctrl [2022-11-20 09:30:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2022-11-20 09:30:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2022-11-20 09:30:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 09:30:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 09:30:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-11-20 09:30:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-11-20 09:30:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2022-11-20 09:30:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2022-11-20 09:30:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-11-20 09:30:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-11-20 09:30:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 09:30:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 09:30:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_newstation [2022-11-20 09:30:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_newstation [2022-11-20 09:30:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-11-20 09:30:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-11-20 09:30:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_vdev_init [2022-11-20 09:30:11,123 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_vdev_init [2022-11-20 09:30:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure video_mmap [2022-11-20 09:30:11,123 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mmap [2022-11-20 09:30:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 09:30:11,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 09:30:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 09:30:11,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 09:30:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 09:30:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 09:30:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-20 09:30:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-20 09:30:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-20 09:30:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-20 09:30:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 09:30:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 09:30:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_poll [2022-11-20 09:30:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_poll [2022-11-20 09:30:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2022-11-20 09:30:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2022-11-20 09:30:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-11-20 09:30:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-11-20 09:30:11,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 09:30:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-20 09:30:11,128 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 09:30:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 09:30:11,128 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2022-11-20 09:30:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2022-11-20 09:30:11,128 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-20 09:30:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-20 09:30:11,129 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-11-20 09:30:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-11-20 09:30:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:30:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_stereo [2022-11-20 09:30:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_stereo [2022-11-20 09:30:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 09:30:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 09:30:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_vbi_fmt [2022-11-20 09:30:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_vbi_fmt [2022-11-20 09:30:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 09:30:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 09:30:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-20 09:30:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-20 09:30:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2022-11-20 09:30:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 09:30:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 09:30:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-11-20 09:30:11,132 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-11-20 09:30:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-20 09:30:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-20 09:30:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 09:30:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 09:30:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_restart_vbi_queue [2022-11-20 09:30:11,133 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_restart_vbi_queue [2022-11-20 09:30:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2022-11-20 09:30:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2022-11-20 09:30:11,134 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_finidev [2022-11-20 09:30:11,135 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_finidev [2022-11-20 09:30:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 09:30:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 09:30:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-20 09:30:11,140 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-20 09:30:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_querycap [2022-11-20 09:30:11,141 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_querycap [2022-11-20 09:30:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 09:30:11,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 09:30:11,143 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2022-11-20 09:30:11,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2022-11-20 09:30:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 09:30:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 09:30:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_aud_ctrl [2022-11-20 09:30:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_aud_ctrl [2022-11-20 09:30:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-11-20 09:30:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-11-20 09:30:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-20 09:30:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-20 09:30:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2022-11-20 09:30:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2022-11-20 09:30:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 09:30:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 09:30:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2022-11-20 09:30:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2022-11-20 09:30:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-20 09:30:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-20 09:30:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 09:30:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-20 09:30:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2022-11-20 09:30:11,154 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2022-11-20 09:30:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:30:11,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 09:30:11,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 09:30:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 09:30:11,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 09:30:11,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 09:30:11,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 09:30:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-20 09:30:11,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-20 09:30:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-11-20 09:30:11,156 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-11-20 09:30:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:30:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 09:30:11,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 09:30:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:30:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure video_release [2022-11-20 09:30:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure video_release [2022-11-20 09:30:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:30:11,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 09:30:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure restart_video_queue [2022-11-20 09:30:11,159 INFO L138 BoogieDeclarations]: Found implementation of procedure restart_video_queue [2022-11-20 09:30:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-20 09:30:11,159 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-20 09:30:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2022-11-20 09:30:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2022-11-20 09:30:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-20 09:30:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-20 09:30:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_s_ctrl [2022-11-20 09:30:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_s_ctrl [2022-11-20 09:30:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-20 09:30:11,161 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-20 09:30:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_enum_input [2022-11-20 09:30:11,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_enum_input [2022-11-20 09:30:11,161 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2022-11-20 09:30:11,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2022-11-20 09:30:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure video_set_drvdata [2022-11-20 09:30:11,162 INFO L138 BoogieDeclarations]: Found implementation of procedure video_set_drvdata [2022-11-20 09:30:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_tuner [2022-11-20 09:30:11,162 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_tuner [2022-11-20 09:30:11,162 INFO L130 BoogieDeclarations]: Found specification of procedure res_check [2022-11-20 09:30:11,162 INFO L138 BoogieDeclarations]: Found implementation of procedure res_check [2022-11-20 09:30:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2022-11-20 09:30:11,163 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2022-11-20 09:30:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_buffer [2022-11-20 09:30:11,163 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_buffer [2022-11-20 09:30:11,163 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-20 09:30:11,164 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-20 09:30:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 09:30:11,164 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 09:30:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-20 09:30:11,164 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-20 09:30:11,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:30:11,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:30:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2022-11-20 09:30:11,165 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2022-11-20 09:30:11,165 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-20 09:30:11,165 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-20 09:30:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 09:30:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-20 09:30:11,166 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-20 09:30:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 09:30:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 09:30:11,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 09:30:11,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 09:30:11,167 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_std [2022-11-20 09:30:11,167 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_std [2022-11-20 09:30:11,167 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-11-20 09:30:11,167 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-11-20 09:30:11,168 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2022-11-20 09:30:11,168 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2022-11-20 09:30:11,168 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2022-11-20 09:30:11,168 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2022-11-20 09:30:11,168 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-20 09:30:11,168 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-20 09:30:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 09:30:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 09:30:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_input [2022-11-20 09:30:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_input [2022-11-20 09:30:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure res_get [2022-11-20 09:30:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure res_get [2022-11-20 09:30:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-20 09:30:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-20 09:30:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_resume [2022-11-20 09:30:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_resume [2022-11-20 09:30:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-20 09:30:11,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-20 09:30:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2022-11-20 09:30:11,171 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2022-11-20 09:30:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-20 09:30:11,171 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-20 09:30:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-20 09:30:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-20 09:30:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:30:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 09:30:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 09:30:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:30:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2022-11-20 09:30:11,174 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2022-11-20 09:30:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_find [2022-11-20 09:30:11,179 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_find [2022-11-20 09:30:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 09:30:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 09:30:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-11-20 09:30:11,180 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-11-20 09:30:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_dma [2022-11-20 09:30:11,180 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_dma [2022-11-20 09:30:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 09:30:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 09:30:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:30:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-11-20 09:30:11,185 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-11-20 09:30:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-20 09:30:11,185 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-20 09:30:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure get_queue [2022-11-20 09:30:11,186 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queue [2022-11-20 09:30:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 09:30:11,186 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 09:30:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 09:30:11,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 09:30:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 09:30:11,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 09:30:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 09:30:11,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 09:30:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-20 09:30:11,187 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-20 09:30:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-20 09:30:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-20 09:30:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-11-20 09:30:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-11-20 09:30:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 09:30:11,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-20 09:30:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-20 09:30:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-20 09:30:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_cx88_core [2022-11-20 09:30:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_cx88_core [2022-11-20 09:30:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_cx88_core [2022-11-20 09:30:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_cx88_core [2022-11-20 09:30:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:30:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 09:30:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 09:30:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 09:30:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 09:30:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-20 09:30:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 09:30:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 09:30:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 09:30:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 09:30:11,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 09:30:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-20 09:30:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-20 09:30:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-20 09:30:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-20 09:30:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_tuner [2022-11-20 09:30:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_tuner [2022-11-20 09:30:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-11-20 09:30:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2022-11-20 09:30:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-20 09:30:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-20 09:30:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_start_vbi_dma [2022-11-20 09:30:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_start_vbi_dma [2022-11-20 09:30:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_ir_stop [2022-11-20 09:30:11,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_ir_stop [2022-11-20 09:30:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2022-11-20 09:30:11,194 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2022-11-20 09:30:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 09:30:11,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 09:30:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-20 09:30:11,194 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-20 09:30:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-20 09:30:11,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-20 09:30:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2022-11-20 09:30:11,195 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2022-11-20 09:30:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-20 09:30:11,195 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-20 09:30:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2022-11-20 09:30:11,196 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2022-11-20 09:30:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 09:30:11,196 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 09:30:11,196 INFO L130 BoogieDeclarations]: Found specification of procedure get_resource [2022-11-20 09:30:11,196 INFO L138 BoogieDeclarations]: Found implementation of procedure get_resource [2022-11-20 09:30:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 09:30:11,197 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 09:30:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_initdev [2022-11-20 09:30:11,197 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_initdev [2022-11-20 09:30:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 09:30:11,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 09:30:13,272 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:30:13,276 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:30:14,486 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 09:32:17,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 09:32:17,816 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:32:17,851 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:32:17,851 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 09:32:17,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:32:17 BoogieIcfgContainer [2022-11-20 09:32:17,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:32:17,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:32:17,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:32:17,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:32:17,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:30:01" (1/3) ... [2022-11-20 09:32:17,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5d246a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:32:17, skipping insertion in model container [2022-11-20 09:32:17,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:09" (2/3) ... [2022-11-20 09:32:17,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5d246a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:32:17, skipping insertion in model container [2022-11-20 09:32:17,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:32:17" (3/3) ... [2022-11-20 09:32:17,871 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2022-11-20 09:32:17,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:32:17,897 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 09:32:18,031 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:32:18,043 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;@4870b584, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:32:18,043 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 09:32:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 2864 states, 1960 states have (on average 1.260204081632653) internal successors, (2470), 1975 states have internal predecessors, (2470), 755 states have call successors, (755), 147 states have call predecessors, (755), 146 states have return successors, (748), 747 states have call predecessors, (748), 748 states have call successors, (748) [2022-11-20 09:32:18,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2022-11-20 09:32:18,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:18,121 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:32:18,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:32:18,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:18,128 INFO L85 PathProgramCache]: Analyzing trace with hash 859840949, now seen corresponding path program 1 times [2022-11-20 09:32:18,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:32:18,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581059007] [2022-11-20 09:32:18,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:18,161 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 09:32:18,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:32:18,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:32:18,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:32:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:30,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 6502 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:32:30,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:32:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2022-11-20 09:32:30,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:32:30,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:32:30,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581059007] [2022-11-20 09:32:30,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [581059007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:32:30,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:32:30,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:32:30,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453617419] [2022-11-20 09:32:30,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:32:30,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:32:30,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:32:30,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:32:30,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:32:30,950 INFO L87 Difference]: Start difference. First operand has 2864 states, 1960 states have (on average 1.260204081632653) internal successors, (2470), 1975 states have internal predecessors, (2470), 755 states have call successors, (755), 147 states have call predecessors, (755), 146 states have return successors, (748), 747 states have call predecessors, (748), 748 states have call successors, (748) Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-20 09:32:34,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:35,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:35,374 INFO L93 Difference]: Finished difference Result 8273 states and 11662 transitions. [2022-11-20 09:32:35,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:32:35,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 571 [2022-11-20 09:32:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:35,471 INFO L225 Difference]: With dead ends: 8273 [2022-11-20 09:32:35,471 INFO L226 Difference]: Without dead ends: 5493 [2022-11-20 09:32:35,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 569 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 09:32:35,509 INFO L413 NwaCegarLoop]: 4631 mSDtfsCounter, 3680 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3680 SdHoareTripleChecker+Valid, 8519 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:35,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3680 Valid, 8519 Invalid, 54 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-20 09:32:35,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5493 states. [2022-11-20 09:32:36,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5493 to 5489. [2022-11-20 09:32:36,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5489 states, 3781 states have (on average 1.25575244644274) internal successors, (4748), 3810 states have internal predecessors, (4748), 1417 states have call successors, (1417), 289 states have call predecessors, (1417), 288 states have return successors, (1413), 1411 states have call predecessors, (1413), 1413 states have call successors, (1413) [2022-11-20 09:32:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5489 states to 5489 states and 7578 transitions. [2022-11-20 09:32:36,082 INFO L78 Accepts]: Start accepts. Automaton has 5489 states and 7578 transitions. Word has length 571 [2022-11-20 09:32:36,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:32:36,085 INFO L495 AbstractCegarLoop]: Abstraction has 5489 states and 7578 transitions. [2022-11-20 09:32:36,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-20 09:32:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5489 states and 7578 transitions. [2022-11-20 09:32:36,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2022-11-20 09:32:36,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:36,121 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:32:36,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:32:36,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:32:36,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:32:36,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1167308247, now seen corresponding path program 1 times [2022-11-20 09:32:36,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:32:36,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861346722] [2022-11-20 09:32:36,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:36,354 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 09:32:36,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:32:36,356 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:32:36,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:32:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:32:47,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 6576 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:32:47,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:32:48,122 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2022-11-20 09:32:48,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:32:48,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:32:48,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861346722] [2022-11-20 09:32:48,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861346722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:32:48,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:32:48,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:32:48,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598928434] [2022-11-20 09:32:48,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:32:48,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:32:48,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:32:48,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:32:48,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:32:48,128 INFO L87 Difference]: Start difference. First operand 5489 states and 7578 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 09:32:51,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:32:53,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:32:53,214 INFO L93 Difference]: Finished difference Result 13079 states and 17990 transitions. [2022-11-20 09:32:53,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:32:53,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 586 [2022-11-20 09:32:53,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:32:53,276 INFO L225 Difference]: With dead ends: 13079 [2022-11-20 09:32:53,276 INFO L226 Difference]: Without dead ends: 7693 [2022-11-20 09:32:53,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 584 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 09:32:53,303 INFO L413 NwaCegarLoop]: 4548 mSDtfsCounter, 3348 mSDsluCounter, 3800 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3348 SdHoareTripleChecker+Valid, 8348 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:32:53,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3348 Valid, 8348 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-20 09:32:53,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7693 states. [2022-11-20 09:32:53,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7693 to 7672. [2022-11-20 09:32:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7672 states, 5300 states have (on average 1.2552830188679245) internal successors, (6653), 5346 states have internal predecessors, (6653), 1936 states have call successors, (1936), 434 states have call predecessors, (1936), 433 states have return successors, (1932), 1924 states have call predecessors, (1932), 1932 states have call successors, (1932) [2022-11-20 09:32:53,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7672 states to 7672 states and 10521 transitions. [2022-11-20 09:32:53,879 INFO L78 Accepts]: Start accepts. Automaton has 7672 states and 10521 transitions. Word has length 586 [2022-11-20 09:32:53,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:32:53,885 INFO L495 AbstractCegarLoop]: Abstraction has 7672 states and 10521 transitions. [2022-11-20 09:32:53,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 09:32:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 7672 states and 10521 transitions. [2022-11-20 09:32:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2022-11-20 09:32:53,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:32:53,913 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:32:54,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:32:54,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:32:54,139 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:32:54,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:32:54,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1989187559, now seen corresponding path program 1 times [2022-11-20 09:32:54,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:32:54,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858746948] [2022-11-20 09:32:54,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:32:54,157 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 09:32:54,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:32:54,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:32:54,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:06,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 6575 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:06,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2022-11-20 09:33:06,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:06,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:06,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858746948] [2022-11-20 09:33:06,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858746948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:06,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:06,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:06,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624803357] [2022-11-20 09:33:06,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:06,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:06,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:06,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:06,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:06,386 INFO L87 Difference]: Start difference. First operand 7672 states and 10521 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 09:33:09,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:11,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:11,639 INFO L93 Difference]: Finished difference Result 18813 states and 25779 transitions. [2022-11-20 09:33:11,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:11,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 585 [2022-11-20 09:33:11,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:11,713 INFO L225 Difference]: With dead ends: 18813 [2022-11-20 09:33:11,714 INFO L226 Difference]: Without dead ends: 11244 [2022-11-20 09:33:11,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 583 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 09:33:11,752 INFO L413 NwaCegarLoop]: 5263 mSDtfsCounter, 3394 mSDsluCounter, 3801 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3394 SdHoareTripleChecker+Valid, 9064 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:11,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3394 Valid, 9064 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-20 09:33:11,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11244 states. [2022-11-20 09:33:12,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11244 to 11221. [2022-11-20 09:33:12,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11221 states, 7724 states have (on average 1.2510357327809425) internal successors, (9663), 7804 states have internal predecessors, (9663), 2848 states have call successors, (2848), 647 states have call predecessors, (2848), 646 states have return successors, (2844), 2824 states have call predecessors, (2844), 2844 states have call successors, (2844) [2022-11-20 09:33:12,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11221 states to 11221 states and 15355 transitions. [2022-11-20 09:33:12,526 INFO L78 Accepts]: Start accepts. Automaton has 11221 states and 15355 transitions. Word has length 585 [2022-11-20 09:33:12,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:12,528 INFO L495 AbstractCegarLoop]: Abstraction has 11221 states and 15355 transitions. [2022-11-20 09:33:12,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 09:33:12,528 INFO L276 IsEmpty]: Start isEmpty. Operand 11221 states and 15355 transitions. [2022-11-20 09:33:12,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-20 09:33:12,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:12,549 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:33:12,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:12,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:12,766 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:12,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:12,766 INFO L85 PathProgramCache]: Analyzing trace with hash -2005580946, now seen corresponding path program 1 times [2022-11-20 09:33:12,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:12,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758202838] [2022-11-20 09:33:12,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:12,777 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 09:33:12,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:12,778 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:12,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:23,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 6606 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:23,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:24,006 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 10584 trivial. 0 not checked. [2022-11-20 09:33:24,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:24,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:24,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758202838] [2022-11-20 09:33:24,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758202838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:24,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:24,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:24,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748085594] [2022-11-20 09:33:24,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:24,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:24,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:24,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:24,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:24,012 INFO L87 Difference]: Start difference. First operand 11221 states and 15355 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 09:33:27,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:29,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:29,067 INFO L93 Difference]: Finished difference Result 29428 states and 40321 transitions. [2022-11-20 09:33:29,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:29,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 591 [2022-11-20 09:33:29,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:29,214 INFO L225 Difference]: With dead ends: 29428 [2022-11-20 09:33:29,214 INFO L226 Difference]: Without dead ends: 18310 [2022-11-20 09:33:29,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:29,279 INFO L413 NwaCegarLoop]: 5020 mSDtfsCounter, 3479 mSDsluCounter, 3865 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3479 SdHoareTripleChecker+Valid, 8885 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:29,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3479 Valid, 8885 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 09:33:29,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18310 states. [2022-11-20 09:33:30,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18310 to 18285. [2022-11-20 09:33:30,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18285 states, 12699 states have (on average 1.2562406488699898) internal successors, (15953), 12829 states have internal predecessors, (15953), 4531 states have call successors, (4531), 1057 states have call predecessors, (4531), 1052 states have return successors, (4527), 4479 states have call predecessors, (4527), 4527 states have call successors, (4527) [2022-11-20 09:33:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18285 states to 18285 states and 25011 transitions. [2022-11-20 09:33:30,750 INFO L78 Accepts]: Start accepts. Automaton has 18285 states and 25011 transitions. Word has length 591 [2022-11-20 09:33:30,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:30,751 INFO L495 AbstractCegarLoop]: Abstraction has 18285 states and 25011 transitions. [2022-11-20 09:33:30,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-20 09:33:30,752 INFO L276 IsEmpty]: Start isEmpty. Operand 18285 states and 25011 transitions. [2022-11-20 09:33:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2022-11-20 09:33:30,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:30,766 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:30,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:30,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:30,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:30,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:30,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1798258881, now seen corresponding path program 1 times [2022-11-20 09:33:31,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:31,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914605587] [2022-11-20 09:33:31,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:31,003 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 09:33:31,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:31,005 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:31,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:33:42,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 6631 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:33:42,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:33:42,577 INFO L134 CoverageAnalysis]: Checked inductivity of 11228 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 11046 trivial. 0 not checked. [2022-11-20 09:33:42,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:33:42,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:33:42,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914605587] [2022-11-20 09:33:42,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914605587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:33:42,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:33:42,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:33:42,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91541370] [2022-11-20 09:33:42,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:33:42,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:33:42,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:33:42,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:33:42,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:33:42,581 INFO L87 Difference]: Start difference. First operand 18285 states and 25011 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-20 09:33:46,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:33:48,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:33:48,032 INFO L93 Difference]: Finished difference Result 52428 states and 71720 transitions. [2022-11-20 09:33:48,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:33:48,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 631 [2022-11-20 09:33:48,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:33:48,200 INFO L225 Difference]: With dead ends: 52428 [2022-11-20 09:33:48,200 INFO L226 Difference]: Without dead ends: 35043 [2022-11-20 09:33:48,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 629 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 09:33:48,253 INFO L413 NwaCegarLoop]: 7292 mSDtfsCounter, 3638 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3638 SdHoareTripleChecker+Valid, 11183 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-20 09:33:48,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3638 Valid, 11183 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-11-20 09:33:48,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35043 states. [2022-11-20 09:33:50,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35043 to 35039. [2022-11-20 09:33:50,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35039 states, 24366 states have (on average 1.2563408027579415) internal successors, (30612), 24579 states have internal predecessors, (30612), 8637 states have call successors, (8637), 2038 states have call predecessors, (8637), 2033 states have return successors, (8633), 8578 states have call predecessors, (8633), 8633 states have call successors, (8633) [2022-11-20 09:33:50,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35039 states to 35039 states and 47882 transitions. [2022-11-20 09:33:50,937 INFO L78 Accepts]: Start accepts. Automaton has 35039 states and 47882 transitions. Word has length 631 [2022-11-20 09:33:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:33:50,938 INFO L495 AbstractCegarLoop]: Abstraction has 35039 states and 47882 transitions. [2022-11-20 09:33:50,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-20 09:33:50,938 INFO L276 IsEmpty]: Start isEmpty. Operand 35039 states and 47882 transitions. [2022-11-20 09:33:50,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2022-11-20 09:33:50,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:33:50,956 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:33:51,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:33:51,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:51,171 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:33:51,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:33:51,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1110505021, now seen corresponding path program 1 times [2022-11-20 09:33:51,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:33:51,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22095137] [2022-11-20 09:33:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:33:51,181 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 09:33:51,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:33:51,182 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:33:51,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:01,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 6631 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:34:01,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:07,708 INFO L134 CoverageAnalysis]: Checked inductivity of 11228 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2022-11-20 09:34:07,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:34:07,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:07,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22095137] [2022-11-20 09:34:07,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22095137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:07,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:07,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:34:07,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298938894] [2022-11-20 09:34:07,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:07,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:34:07,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:07,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:34:07,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:34:07,712 INFO L87 Difference]: Start difference. First operand 35039 states and 47882 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2022-11-20 09:34:09,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:10,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:10,675 INFO L93 Difference]: Finished difference Result 35045 states and 47887 transitions. [2022-11-20 09:34:10,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:34:10,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 631 [2022-11-20 09:34:10,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:10,815 INFO L225 Difference]: With dead ends: 35045 [2022-11-20 09:34:10,815 INFO L226 Difference]: Without dead ends: 35043 [2022-11-20 09:34:10,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:34:10,829 INFO L413 NwaCegarLoop]: 3927 mSDtfsCounter, 3725 mSDsluCounter, 7848 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3726 SdHoareTripleChecker+Valid, 11775 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:10,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3726 Valid, 11775 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 09:34:10,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35043 states. [2022-11-20 09:34:12,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35043 to 35043. [2022-11-20 09:34:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35043 states, 24369 states have (on average 1.2563092453527023) internal successors, (30615), 24582 states have internal predecessors, (30615), 8637 states have call successors, (8637), 2039 states have call predecessors, (8637), 2034 states have return successors, (8633), 8578 states have call predecessors, (8633), 8633 states have call successors, (8633) [2022-11-20 09:34:13,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35043 states to 35043 states and 47885 transitions. [2022-11-20 09:34:13,052 INFO L78 Accepts]: Start accepts. Automaton has 35043 states and 47885 transitions. Word has length 631 [2022-11-20 09:34:13,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:13,053 INFO L495 AbstractCegarLoop]: Abstraction has 35043 states and 47885 transitions. [2022-11-20 09:34:13,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2022-11-20 09:34:13,054 INFO L276 IsEmpty]: Start isEmpty. Operand 35043 states and 47885 transitions. [2022-11-20 09:34:13,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2022-11-20 09:34:13,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:13,067 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:34:13,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:13,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:13,292 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:34:13,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:13,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1785183348, now seen corresponding path program 1 times [2022-11-20 09:34:13,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:13,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682914447] [2022-11-20 09:34:13,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:13,301 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 09:34:13,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:13,302 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:13,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:23,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 6638 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:34:23,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:29,512 INFO L134 CoverageAnalysis]: Checked inductivity of 11230 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2022-11-20 09:34:29,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:34:31,585 INFO L134 CoverageAnalysis]: Checked inductivity of 11230 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11228 trivial. 0 not checked. [2022-11-20 09:34:31,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:31,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682914447] [2022-11-20 09:34:31,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682914447] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:34:31,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:34:31,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 09:34:31,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760410242] [2022-11-20 09:34:31,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:31,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:34:31,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:31,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:34:31,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:34:31,589 INFO L87 Difference]: Start difference. First operand 35043 states and 47885 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-20 09:34:32,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:35,235 INFO L93 Difference]: Finished difference Result 35049 states and 47890 transitions. [2022-11-20 09:34:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:34:35,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 636 [2022-11-20 09:34:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:35,361 INFO L225 Difference]: With dead ends: 35049 [2022-11-20 09:34:35,361 INFO L226 Difference]: Without dead ends: 35047 [2022-11-20 09:34:35,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1273 GetRequests, 1265 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 09:34:35,378 INFO L413 NwaCegarLoop]: 3930 mSDtfsCounter, 3789 mSDsluCounter, 7847 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3793 SdHoareTripleChecker+Valid, 11777 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:35,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3793 Valid, 11777 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 09:34:35,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35047 states. [2022-11-20 09:34:37,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35047 to 35047. [2022-11-20 09:34:37,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35047 states, 24372 states have (on average 1.256277695716396) internal successors, (30618), 24585 states have internal predecessors, (30618), 8637 states have call successors, (8637), 2040 states have call predecessors, (8637), 2035 states have return successors, (8633), 8578 states have call predecessors, (8633), 8633 states have call successors, (8633) [2022-11-20 09:34:37,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35047 states to 35047 states and 47888 transitions. [2022-11-20 09:34:37,582 INFO L78 Accepts]: Start accepts. Automaton has 35047 states and 47888 transitions. Word has length 636 [2022-11-20 09:34:37,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:37,583 INFO L495 AbstractCegarLoop]: Abstraction has 35047 states and 47888 transitions. [2022-11-20 09:34:37,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-20 09:34:37,584 INFO L276 IsEmpty]: Start isEmpty. Operand 35047 states and 47888 transitions. [2022-11-20 09:34:37,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2022-11-20 09:34:37,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:37,600 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:34:37,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:37,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:37,815 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:34:37,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:37,816 INFO L85 PathProgramCache]: Analyzing trace with hash 36009370, now seen corresponding path program 1 times [2022-11-20 09:34:37,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:37,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152756752] [2022-11-20 09:34:37,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:37,824 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 09:34:37,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:37,825 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:37,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:34:48,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 6689 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:34:48,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:34:48,620 INFO L134 CoverageAnalysis]: Checked inductivity of 11244 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 11058 trivial. 0 not checked. [2022-11-20 09:34:48,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 09:34:48,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:34:48,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152756752] [2022-11-20 09:34:48,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152756752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:34:48,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:34:48,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:34:48,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319075292] [2022-11-20 09:34:48,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:34:48,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:34:48,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:34:48,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:34:48,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:34:48,627 INFO L87 Difference]: Start difference. First operand 35047 states and 47888 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-20 09:34:52,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:34:55,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:34:55,321 INFO L93 Difference]: Finished difference Result 85980 states and 117512 transitions. [2022-11-20 09:34:55,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:34:55,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 649 [2022-11-20 09:34:55,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:34:55,528 INFO L225 Difference]: With dead ends: 85980 [2022-11-20 09:34:55,529 INFO L226 Difference]: Without dead ends: 51833 [2022-11-20 09:34:55,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 647 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 09:34:55,640 INFO L413 NwaCegarLoop]: 7574 mSDtfsCounter, 3660 mSDsluCounter, 3893 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3660 SdHoareTripleChecker+Valid, 11467 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-20 09:34:55,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3660 Valid, 11467 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-11-20 09:34:55,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51833 states. [2022-11-20 09:34:59,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51833 to 51809. [2022-11-20 09:34:59,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51809 states, 36047 states have (on average 1.2562765278663965) internal successors, (45285), 36343 states have internal predecessors, (45285), 12743 states have call successors, (12743), 3021 states have call predecessors, (12743), 3016 states have return successors, (12739), 12677 states have call predecessors, (12739), 12739 states have call successors, (12739) [2022-11-20 09:34:59,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51809 states to 51809 states and 70767 transitions. [2022-11-20 09:34:59,262 INFO L78 Accepts]: Start accepts. Automaton has 51809 states and 70767 transitions. Word has length 649 [2022-11-20 09:34:59,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:34:59,263 INFO L495 AbstractCegarLoop]: Abstraction has 51809 states and 70767 transitions. [2022-11-20 09:34:59,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2022-11-20 09:34:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 51809 states and 70767 transitions. [2022-11-20 09:34:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2022-11-20 09:34:59,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:34:59,278 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:34:59,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:59,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:59,492 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:34:59,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:34:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash -912971741, now seen corresponding path program 1 times [2022-11-20 09:34:59,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:34:59,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1849545187] [2022-11-20 09:34:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:34:59,500 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 09:34:59,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:34:59,692 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:34:59,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:35:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:35:09,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 6645 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:35:09,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:35:15,359 INFO L134 CoverageAnalysis]: Checked inductivity of 11236 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11232 trivial. 0 not checked. [2022-11-20 09:35:15,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:35:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 11236 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11232 trivial. 0 not checked. [2022-11-20 09:35:17,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:35:17,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1849545187] [2022-11-20 09:35:17,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1849545187] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:35:17,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:35:17,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 09:35:17,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232043439] [2022-11-20 09:35:17,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:35:17,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:35:17,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:35:17,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:35:17,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:35:17,345 INFO L87 Difference]: Start difference. First operand 51809 states and 70767 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-20 09:35:18,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:35:21,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:35:21,987 INFO L93 Difference]: Finished difference Result 67887 states and 91699 transitions. [2022-11-20 09:35:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:35:21,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 641 [2022-11-20 09:35:21,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:35:22,235 INFO L225 Difference]: With dead ends: 67887 [2022-11-20 09:35:22,236 INFO L226 Difference]: Without dead ends: 67885 [2022-11-20 09:35:22,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1283 GetRequests, 1275 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 09:35:22,273 INFO L413 NwaCegarLoop]: 4193 mSDtfsCounter, 3419 mSDsluCounter, 9810 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3422 SdHoareTripleChecker+Valid, 14003 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 09:35:22,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3422 Valid, 14003 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 09:35:22,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67885 states. [2022-11-20 09:35:26,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67885 to 67548. [2022-11-20 09:35:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67548 states, 46748 states have (on average 1.2485026097373149) internal successors, (58365), 47200 states have internal predecessors, (58365), 16403 states have call successors, (16403), 4465 states have call predecessors, (16403), 4394 states have return successors, (16513), 16115 states have call predecessors, (16513), 16399 states have call successors, (16513) [2022-11-20 09:35:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67548 states to 67548 states and 91281 transitions. [2022-11-20 09:35:27,069 INFO L78 Accepts]: Start accepts. Automaton has 67548 states and 91281 transitions. Word has length 641 [2022-11-20 09:35:27,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:35:27,070 INFO L495 AbstractCegarLoop]: Abstraction has 67548 states and 91281 transitions. [2022-11-20 09:35:27,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-20 09:35:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 67548 states and 91281 transitions. [2022-11-20 09:35:27,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2022-11-20 09:35:27,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:35:27,083 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:27,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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)] Ended with exit code 0 [2022-11-20 09:35:27,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:35:27,295 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:35:27,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:35:27,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1613772396, now seen corresponding path program 1 times [2022-11-20 09:35:27,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:35:27,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195121501] [2022-11-20 09:35:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:35:27,303 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 09:35:27,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:35:27,304 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:35:27,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:35:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:35:37,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 6652 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:35:37,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:35:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 11246 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11240 trivial. 0 not checked. [2022-11-20 09:35:43,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:35:45,253 INFO L134 CoverageAnalysis]: Checked inductivity of 11246 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11240 trivial. 0 not checked. [2022-11-20 09:35:45,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:35:45,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195121501] [2022-11-20 09:35:45,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195121501] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:35:45,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:35:45,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 09:35:45,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954267032] [2022-11-20 09:35:45,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:35:45,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:35:45,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:35:45,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:35:45,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:35:45,257 INFO L87 Difference]: Start difference. First operand 67548 states and 91281 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-20 09:35:46,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 09:35:51,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:35:51,066 INFO L93 Difference]: Finished difference Result 67554 states and 91286 transitions. [2022-11-20 09:35:51,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:35:51,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 646 [2022-11-20 09:35:51,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:35:51,305 INFO L225 Difference]: With dead ends: 67554 [2022-11-20 09:35:51,305 INFO L226 Difference]: Without dead ends: 67552 [2022-11-20 09:35:51,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1293 GetRequests, 1285 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 09:35:51,329 INFO L413 NwaCegarLoop]: 3930 mSDtfsCounter, 3789 mSDsluCounter, 7847 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3791 SdHoareTripleChecker+Valid, 11777 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 09:35:51,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3791 Valid, 11777 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 09:35:51,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67552 states. [2022-11-20 09:35:56,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67552 to 67552. [2022-11-20 09:35:56,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67552 states, 46751 states have (on average 1.2484866633868794) internal successors, (58368), 47203 states have internal predecessors, (58368), 16403 states have call successors, (16403), 4466 states have call predecessors, (16403), 4395 states have return successors, (16513), 16115 states have call predecessors, (16513), 16399 states have call successors, (16513) [2022-11-20 09:35:56,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67552 states to 67552 states and 91284 transitions. [2022-11-20 09:35:56,350 INFO L78 Accepts]: Start accepts. Automaton has 67552 states and 91284 transitions. Word has length 646 [2022-11-20 09:35:56,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:35:56,351 INFO L495 AbstractCegarLoop]: Abstraction has 67552 states and 91284 transitions. [2022-11-20 09:35:56,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-20 09:35:56,351 INFO L276 IsEmpty]: Start isEmpty. Operand 67552 states and 91284 transitions. [2022-11-20 09:35:56,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2022-11-20 09:35:56,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:35:56,367 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 49, 49, 49, 49, 49, 49, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:35:56,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 09:35:56,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:35:56,591 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 09:35:56,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:35:56,592 INFO L85 PathProgramCache]: Analyzing trace with hash 453148291, now seen corresponding path program 1 times [2022-11-20 09:35:56,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 09:35:56,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [247567326] [2022-11-20 09:35:56,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:35:56,597 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 09:35:56,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 09:35:56,599 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:35:56,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7331d2f1-f9f4-4d6d-b619-877df1a2c0de/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 09:36:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:06,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 6659 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:36:06,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:36:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 11260 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11252 trivial. 0 not checked. [2022-11-20 09:36:12,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:36:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 11260 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11252 trivial. 0 not checked. [2022-11-20 09:36:14,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 09:36:14,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [247567326] [2022-11-20 09:36:14,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [247567326] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 09:36:14,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 09:36:14,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-20 09:36:14,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440243334] [2022-11-20 09:36:14,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:36:14,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:36:14,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 09:36:14,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:36:14,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:36:14,316 INFO L87 Difference]: Start difference. First operand 67552 states and 91284 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-11-20 09:36:15,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []