./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/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_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/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_3246f15e-885c-4d2d-a88d-f855f790e9c2/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 6eed6410a0dd7e708ffb27250b590aa2913bf9f742c15130caf6eadad29510cc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:42:05,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:42:05,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:42:05,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:42:05,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:42:05,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:42:05,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:42:05,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:42:05,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:42:05,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:42:05,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:42:05,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:42:05,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:42:05,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:42:05,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:42:05,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:42:05,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:42:05,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:42:06,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:42:06,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:42:06,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:42:06,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:42:06,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:42:06,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:42:06,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:42:06,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:42:06,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:42:06,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:42:06,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:42:06,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:42:06,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:42:06,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:42:06,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:42:06,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:42:06,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:42:06,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:42:06,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:42:06,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:42:06,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:42:06,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:42:06,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:42:06,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:42:06,051 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:42:06,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:42:06,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:42:06,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:42:06,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:42:06,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:42:06,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:42:06,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:42:06,054 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:42:06,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:42:06,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:42:06,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:42:06,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:42:06,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:42:06,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:42:06,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:42:06,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:42:06,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:42:06,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:42:06,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:42:06,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:42:06,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:42:06,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:42:06,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:42:06,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:42:06,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:42:06,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:42:06,058 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:42:06,059 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:42:06,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:42:06,059 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eed6410a0dd7e708ffb27250b590aa2913bf9f742c15130caf6eadad29510cc [2022-11-20 10:42:06,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:42:06,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:42:06,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:42:06,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:42:06,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:42:06,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-20 10:42:09,492 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:42:10,209 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:42:10,210 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-20 10:42:10,276 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/data/99af8a004/9e5c8c3de09d459e8f9ae9a09df21372/FLAGa2c5db1f2 [2022-11-20 10:42:10,294 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/data/99af8a004/9e5c8c3de09d459e8f9ae9a09df21372 [2022-11-20 10:42:10,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:42:10,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:42:10,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:42:10,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:42:10,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:42:10,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:10" (1/1) ... [2022-11-20 10:42:10,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4534299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:10, skipping insertion in model container [2022-11-20 10:42:10,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:10" (1/1) ... [2022-11-20 10:42:10,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:42:10,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:42:11,103 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 10:42:11,113 INFO L158 Benchmark]: Toolchain (without parser) took 811.63ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 101.7MB in the beginning and 128.4MB in the end (delta: -26.7MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2022-11-20 10:42:11,114 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:42:11,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 809.52ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 101.3MB in the beginning and 128.4MB in the end (delta: -27.1MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2022-11-20 10:42:11,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 809.52ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 101.3MB in the beginning and 128.4MB in the end (delta: -27.1MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/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_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/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_3246f15e-885c-4d2d-a88d-f855f790e9c2/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 6eed6410a0dd7e708ffb27250b590aa2913bf9f742c15130caf6eadad29510cc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:42:13,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:42:13,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:42:13,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:42:13,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:42:13,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:42:13,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:42:13,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:42:13,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:42:13,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:42:13,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:42:13,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:42:13,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:42:13,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:42:13,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:42:13,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:42:13,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:42:13,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:42:13,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:42:13,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:42:13,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:42:13,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:42:13,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:42:13,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:42:13,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:42:13,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:42:13,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:42:13,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:42:13,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:42:13,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:42:13,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:42:13,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:42:13,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:42:13,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:42:13,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:42:13,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:42:13,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:42:13,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:42:13,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:42:13,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:42:13,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:42:13,601 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 10:42:13,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:42:13,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:42:13,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:42:13,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:42:13,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:42:13,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:42:13,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:42:13,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:42:13,628 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:42:13,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:42:13,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:42:13,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:42:13,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:42:13,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:42:13,629 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 10:42:13,630 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 10:42:13,630 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 10:42:13,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:42:13,631 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:42:13,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:42:13,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:42:13,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:42:13,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:42:13,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:42:13,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:42:13,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:42:13,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:42:13,633 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 10:42:13,633 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 10:42:13,634 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:42:13,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:42:13,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:42:13,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 10:42:13,635 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eed6410a0dd7e708ffb27250b590aa2913bf9f742c15130caf6eadad29510cc [2022-11-20 10:42:14,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:42:14,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:42:14,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:42:14,086 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:42:14,087 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:42:14,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-20 10:42:17,304 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:42:18,132 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:42:18,132 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-20 10:42:18,193 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/data/77105215f/a98c8503bf2e4b08bbcfcb927f98a0ca/FLAGbb7401add [2022-11-20 10:42:18,220 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/data/77105215f/a98c8503bf2e4b08bbcfcb927f98a0ca [2022-11-20 10:42:18,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:42:18,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:42:18,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:42:18,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:42:18,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:42:18,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:18" (1/1) ... [2022-11-20 10:42:18,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@419862d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:18, skipping insertion in model container [2022-11-20 10:42:18,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:42:18" (1/1) ... [2022-11-20 10:42:18,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:42:18,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:42:22,402 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404089,404102] [2022-11-20 10:42:22,413 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404258,404271] [2022-11-20 10:42:22,420 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404425,404438] [2022-11-20 10:42:22,422 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404593,404606] [2022-11-20 10:42:22,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:42:22,515 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 10:42:22,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:42:23,036 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404089,404102] [2022-11-20 10:42:23,037 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404258,404271] [2022-11-20 10:42:23,037 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404425,404438] [2022-11-20 10:42:23,038 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404593,404606] [2022-11-20 10:42:23,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:42:23,131 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:42:23,611 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404089,404102] [2022-11-20 10:42:23,612 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404258,404271] [2022-11-20 10:42:23,612 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404425,404438] [2022-11-20 10:42:23,613 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_3246f15e-885c-4d2d-a88d-f855f790e9c2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404593,404606] [2022-11-20 10:42:23,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:42:23,966 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:42:23,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23 WrapperNode [2022-11-20 10:42:23,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:42:23,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:42:23,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:42:23,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:42:23,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,357 INFO L138 Inliner]: procedures = 573, calls = 2809, calls flagged for inlining = 291, calls inlined = 253, statements flattened = 5634 [2022-11-20 10:42:24,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:42:24,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:42:24,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:42:24,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:42:24,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,613 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:42:24,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:42:24,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:42:24,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:42:24,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (1/1) ... [2022-11-20 10:42:24,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:42:24,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:42:24,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:42:24,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:42:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 10:42:24,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 10:42:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 10:42:24,839 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 10:42:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 10:42:24,839 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 10:42:24,839 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 10:42:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 10:42:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:42:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:42:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-20 10:42:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-20 10:42:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 10:42:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 10:42:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure free_tbufs [2022-11-20 10:42:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tbufs [2022-11-20 10:42:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_80 [2022-11-20 10:42:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_80 [2022-11-20 10:42:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 10:42:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 10:42:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 10:42:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 10:42:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 10:42:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 10:42:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 10:42:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 10:42:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-20 10:42:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-20 10:42:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_poll [2022-11-20 10:42:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_poll [2022-11-20 10:42:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-20 10:42:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-20 10:42:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 10:42:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 10:42:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 10:42:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 10:42:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_low [2022-11-20 10:42:24,847 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_low [2022-11-20 10:42:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 10:42:24,848 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 10:42:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 10:42:24,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 10:42:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 10:42:24,849 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 10:42:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 10:42:24,850 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 10:42:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 10:42:24,850 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 10:42:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 10:42:24,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 10:42:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 10:42:24,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 10:42:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:42:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 10:42:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 10:42:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 10:42:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_62 [2022-11-20 10:42:24,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_62 [2022-11-20 10:42:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-20 10:42:24,852 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-20 10:42:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit [2022-11-20 10:42:24,853 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit [2022-11-20 10:42:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 10:42:24,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 10:42:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 10:42:24,854 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 10:42:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rbufs [2022-11-20 10:42:24,855 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rbufs [2022-11-20 10:42:24,855 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 10:42:24,855 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 10:42:24,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 10:42:24,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 10:42:24,856 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_interrupt [2022-11-20 10:42:24,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_interrupt [2022-11-20 10:42:24,857 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:42:24,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:42:24,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 10:42:24,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 10:42:24,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 10:42:24,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 10:42:24,858 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_disable [2022-11-20 10:42:24,858 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_disable [2022-11-20 10:42:24,858 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-20 10:42:24,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-20 10:42:24,859 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 10:42:24,859 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 10:42:24,859 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 10:42:24,859 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 10:42:24,860 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_carrier [2022-11-20 10:42:24,860 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_carrier [2022-11-20 10:42:24,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 10:42:24,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 10:42:24,861 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_shutdown [2022-11-20 10:42:24,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_shutdown [2022-11-20 10:42:24,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:42:24,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 10:42:24,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 10:42:24,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 10:42:24,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 10:42:24,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-20 10:42:24,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-20 10:42:24,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-20 10:42:24,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-20 10:42:24,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:42:24,867 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-20 10:42:24,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-20 10:42:24,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 10:42:24,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 10:42:24,867 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 10:42:24,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 10:42:24,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:42:24,868 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 10:42:24,868 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-20 10:42:24,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-20 10:42:24,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:42:24,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:42:24,868 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_rx_mode [2022-11-20 10:42:24,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_rx_mode [2022-11-20 10:42:24,869 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_rx_crc_and_missed_errord [2022-11-20 10:42:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_rx_crc_and_missed_errord [2022-11-20 10:42:24,870 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-20 10:42:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-20 10:42:24,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rhine_private [2022-11-20 10:42:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rhine_private [2022-11-20 10:42:24,870 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-20 10:42:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-20 10:42:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-20 10:42:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-20 10:42:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 10:42:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 10:42:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 10:42:24,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 10:42:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-11-20 10:42:24,872 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-11-20 10:42:24,872 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 10:42:24,872 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 10:42:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_68 [2022-11-20 10:42:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_68 [2022-11-20 10:42:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_power_init [2022-11-20 10:42:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_power_init [2022-11-20 10:42:24,873 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_tx_timeout [2022-11-20 10:42:24,873 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_tx_timeout [2022-11-20 10:42:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rhine_private [2022-11-20 10:42:24,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rhine_private [2022-11-20 10:42:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-20 10:42:24,874 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-20 10:42:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:42:24,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:42:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 10:42:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 10:42:24,875 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 10:42:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 10:42:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 10:42:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 10:42:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:42:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:42:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:42:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 10:42:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 10:42:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-20 10:42:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_chip_reset [2022-11-20 10:42:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_chip_reset [2022-11-20 10:42:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-20 10:42:24,878 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-20 10:42:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 10:42:24,878 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 10:42:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:42:24,878 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:42:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_cam_mask [2022-11-20 10:42:24,879 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_cam_mask [2022-11-20 10:42:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2022-11-20 10:42:24,879 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2022-11-20 10:42:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 10:42:24,879 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 10:42:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_remove_one [2022-11-20 10:42:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_remove_one [2022-11-20 10:42:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-20 10:42:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-20 10:42:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 10:42:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 10:42:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_close [2022-11-20 10:42:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_close [2022-11-20 10:42:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_79 [2022-11-20 10:42:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_79 [2022-11-20 10:42:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 10:42:24,882 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 10:42:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:42:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-20 10:42:24,882 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-20 10:42:24,882 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 10:42:24,882 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 10:42:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:42:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_check_media [2022-11-20 10:42:24,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_check_media [2022-11-20 10:42:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2022-11-20 10:42:24,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2022-11-20 10:42:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 10:42:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 10:42:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 10:42:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 10:42:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:42:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2022-11-20 10:42:24,884 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2022-11-20 10:42:24,885 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_get_events [2022-11-20 10:42:24,885 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_get_events [2022-11-20 10:42:24,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-20 10:42:24,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-20 10:42:24,885 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mmio [2022-11-20 10:42:24,885 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mmio [2022-11-20 10:42:24,886 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_vlan_cam_mask [2022-11-20 10:42:24,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_vlan_cam_mask [2022-11-20 10:42:24,886 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-20 10:42:24,886 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-20 10:42:24,886 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-20 10:42:24,887 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-20 10:42:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 10:42:24,887 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 10:42:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-20 10:42:24,887 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-20 10:42:24,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 10:42:24,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 10:42:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-20 10:42:24,888 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-20 10:42:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-20 10:42:24,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-20 10:42:24,888 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 10:42:24,889 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 10:42:24,889 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 10:42:24,889 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 10:42:24,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_63 [2022-11-20 10:42:24,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_63 [2022-11-20 10:42:24,894 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_disable_linkmon [2022-11-20 10:42:24,894 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_disable_linkmon [2022-11-20 10:42:24,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:42:24,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 10:42:24,895 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_ack_events [2022-11-20 10:42:24,895 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_ack_events [2022-11-20 10:42:24,895 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 10:42:24,895 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 10:42:24,896 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_resume [2022-11-20 10:42:24,903 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_resume [2022-11-20 10:42:24,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 10:42:24,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_67 [2022-11-20 10:42:24,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_67 [2022-11-20 10:42:24,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:42:24,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:42:24,905 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-11-20 10:42:24,905 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-11-20 10:42:24,905 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 10:42:24,905 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 10:42:24,905 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_high [2022-11-20 10:42:24,905 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_high [2022-11-20 10:42:24,906 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_irq_disable [2022-11-20 10:42:24,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_irq_disable [2022-11-20 10:42:24,906 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_enable [2022-11-20 10:42:24,906 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_enable [2022-11-20 10:42:24,906 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tbufs [2022-11-20 10:42:24,906 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tbufs [2022-11-20 10:42:24,907 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-20 10:42:24,907 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-20 10:42:24,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 10:42:24,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 10:42:24,907 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 10:42:24,907 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 10:42:24,908 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 10:42:24,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 10:42:24,908 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_enable_linkmon [2022-11-20 10:42:24,908 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_enable_linkmon [2022-11-20 10:42:24,908 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_vcam [2022-11-20 10:42:24,908 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_vcam [2022-11-20 10:42:24,908 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-20 10:42:24,909 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-20 10:42:24,909 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-20 10:42:24,909 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-20 10:42:24,909 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_suspend [2022-11-20 10:42:24,909 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_suspend [2022-11-20 10:42:24,909 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_open [2022-11-20 10:42:24,910 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_open [2022-11-20 10:42:24,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 10:42:24,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 10:42:25,912 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:42:25,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:42:27,073 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:55:00,387 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 10:55:00,485 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:55:00,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:55:00,511 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 10:55:00,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:55:00 BoogieIcfgContainer [2022-11-20 10:55:00,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:55:00,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:55:00,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:55:00,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:55:00,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:42:18" (1/3) ... [2022-11-20 10:55:00,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b36571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:55:00, skipping insertion in model container [2022-11-20 10:55:00,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:42:23" (2/3) ... [2022-11-20 10:55:00,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b36571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:55:00, skipping insertion in model container [2022-11-20 10:55:00,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:55:00" (3/3) ... [2022-11-20 10:55:00,527 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2022-11-20 10:55:00,547 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:55:00,547 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 10:55:00,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:55:00,655 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;@14f79707, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:55:00,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 10:55:00,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 2240 states, 1507 states have (on average 1.272063702720637) internal successors, (1917), 1556 states have internal predecessors, (1917), 604 states have call successors, (604), 128 states have call predecessors, (604), 127 states have return successors, (595), 582 states have call predecessors, (595), 595 states have call successors, (595) [2022-11-20 10:55:00,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-20 10:55:00,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:00,716 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:55:00,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:55:00,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:00,723 INFO L85 PathProgramCache]: Analyzing trace with hash 639629280, now seen corresponding path program 1 times [2022-11-20 10:55:00,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:55:00,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580118670] [2022-11-20 10:55:00,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:00,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:55:00,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:55:00,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:55:00,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 10:55:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:05,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 4343 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:55:05,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:06,171 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-20 10:55:06,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:55:06,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:55:06,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580118670] [2022-11-20 10:55:06,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580118670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:06,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:55:06,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:55:06,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245025024] [2022-11-20 10:55:06,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:06,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:55:06,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:55:06,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:55:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:06,221 INFO L87 Difference]: Start difference. First operand has 2240 states, 1507 states have (on average 1.272063702720637) internal successors, (1917), 1556 states have internal predecessors, (1917), 604 states have call successors, (604), 128 states have call predecessors, (604), 127 states have return successors, (595), 582 states have call predecessors, (595), 595 states have call successors, (595) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 10:55:08,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:09,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:09,774 INFO L93 Difference]: Finished difference Result 6489 states and 9223 transitions. [2022-11-20 10:55:09,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:55:09,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 184 [2022-11-20 10:55:09,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:09,839 INFO L225 Difference]: With dead ends: 6489 [2022-11-20 10:55:09,839 INFO L226 Difference]: Without dead ends: 4269 [2022-11-20 10:55:09,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:09,876 INFO L413 NwaCegarLoop]: 3610 mSDtfsCounter, 2893 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 6598 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:09,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 6598 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-11-20 10:55:09,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4269 states. [2022-11-20 10:55:10,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4269 to 4265. [2022-11-20 10:55:10,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4265 states, 2872 states have (on average 1.2559192200557103) internal successors, (3607), 2967 states have internal predecessors, (3607), 1140 states have call successors, (1140), 251 states have call predecessors, (1140), 250 states have return successors, (1136), 1110 states have call predecessors, (1136), 1136 states have call successors, (1136) [2022-11-20 10:55:10,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4265 states to 4265 states and 5883 transitions. [2022-11-20 10:55:10,294 INFO L78 Accepts]: Start accepts. Automaton has 4265 states and 5883 transitions. Word has length 184 [2022-11-20 10:55:10,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:10,299 INFO L495 AbstractCegarLoop]: Abstraction has 4265 states and 5883 transitions. [2022-11-20 10:55:10,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 10:55:10,299 INFO L276 IsEmpty]: Start isEmpty. Operand 4265 states and 5883 transitions. [2022-11-20 10:55:10,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-20 10:55:10,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:10,319 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:55:10,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/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 10:55:10,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:55:10,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:55:10,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:10,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1915567032, now seen corresponding path program 1 times [2022-11-20 10:55:10,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:55:10,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060447727] [2022-11-20 10:55:10,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:10,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:55:10,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:55:10,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:55:10,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 10:55:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:16,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 4382 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:55:16,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:16,216 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-20 10:55:16,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:55:16,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:55:16,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060447727] [2022-11-20 10:55:16,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060447727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:16,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:55:16,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:55:16,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032426839] [2022-11-20 10:55:16,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:16,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:55:16,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:55:16,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:55:16,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:16,220 INFO L87 Difference]: Start difference. First operand 4265 states and 5883 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 10:55:18,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:20,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:20,306 INFO L93 Difference]: Finished difference Result 11993 states and 16521 transitions. [2022-11-20 10:55:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:55:20,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 191 [2022-11-20 10:55:20,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:20,370 INFO L225 Difference]: With dead ends: 11993 [2022-11-20 10:55:20,371 INFO L226 Difference]: Without dead ends: 7761 [2022-11-20 10:55:20,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:20,392 INFO L413 NwaCegarLoop]: 3529 mSDtfsCounter, 2467 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 6464 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:20,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 6464 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-20 10:55:20,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7761 states. [2022-11-20 10:55:20,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7761 to 7732. [2022-11-20 10:55:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7732 states, 5185 states have (on average 1.2555448408871746) internal successors, (6510), 5365 states have internal predecessors, (6510), 2065 states have call successors, (2065), 482 states have call predecessors, (2065), 479 states have return successors, (2063), 2002 states have call predecessors, (2063), 2061 states have call successors, (2063) [2022-11-20 10:55:20,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7732 states to 7732 states and 10638 transitions. [2022-11-20 10:55:20,924 INFO L78 Accepts]: Start accepts. Automaton has 7732 states and 10638 transitions. Word has length 191 [2022-11-20 10:55:20,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:20,927 INFO L495 AbstractCegarLoop]: Abstraction has 7732 states and 10638 transitions. [2022-11-20 10:55:20,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-20 10:55:20,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7732 states and 10638 transitions. [2022-11-20 10:55:20,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-20 10:55:20,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:20,936 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 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] [2022-11-20 10:55:21,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/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)] Ended with exit code 0 [2022-11-20 10:55:21,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:55:21,152 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:55:21,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:21,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2059162777, now seen corresponding path program 1 times [2022-11-20 10:55:21,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:55:21,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692462099] [2022-11-20 10:55:21,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:21,157 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 10:55:21,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:55:21,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:55:21,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 10:55:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:27,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 4477 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:55:27,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 864 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2022-11-20 10:55:27,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:55:27,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:55:27,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692462099] [2022-11-20 10:55:27,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692462099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:27,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:55:27,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:55:27,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721035403] [2022-11-20 10:55:27,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:27,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:55:27,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:55:27,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:55:27,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:27,292 INFO L87 Difference]: Start difference. First operand 7732 states and 10638 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 10:55:29,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:32,382 INFO L93 Difference]: Finished difference Result 22020 states and 30286 transitions. [2022-11-20 10:55:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:55:32,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 214 [2022-11-20 10:55:32,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:32,519 INFO L225 Difference]: With dead ends: 22020 [2022-11-20 10:55:32,519 INFO L226 Difference]: Without dead ends: 14321 [2022-11-20 10:55:32,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:32,564 INFO L413 NwaCegarLoop]: 3794 mSDtfsCounter, 2572 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:32,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2572 Valid, 6730 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 117 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-20 10:55:32,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14321 states. [2022-11-20 10:55:33,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14321 to 14288. [2022-11-20 10:55:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14288 states, 9533 states have (on average 1.2489247875799854) internal successors, (11906), 9863 states have internal predecessors, (11906), 3817 states have call successors, (3817), 940 states have call predecessors, (3817), 935 states have return successors, (3815), 3700 states have call predecessors, (3815), 3813 states have call successors, (3815) [2022-11-20 10:55:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14288 states to 14288 states and 19538 transitions. [2022-11-20 10:55:33,915 INFO L78 Accepts]: Start accepts. Automaton has 14288 states and 19538 transitions. Word has length 214 [2022-11-20 10:55:33,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:33,917 INFO L495 AbstractCegarLoop]: Abstraction has 14288 states and 19538 transitions. [2022-11-20 10:55:33,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 10:55:33,918 INFO L276 IsEmpty]: Start isEmpty. Operand 14288 states and 19538 transitions. [2022-11-20 10:55:33,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-20 10:55:33,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:33,925 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 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] [2022-11-20 10:55:34,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:55:34,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:55:34,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:55:34,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:34,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1731236400, now seen corresponding path program 1 times [2022-11-20 10:55:34,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:55:34,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925464627] [2022-11-20 10:55:34,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:34,152 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:55:34,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:55:34,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:55:34,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 10:55:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:40,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 4441 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:55:40,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:41,116 INFO L134 CoverageAnalysis]: Checked inductivity of 864 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2022-11-20 10:55:41,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:55:41,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:55:41,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925464627] [2022-11-20 10:55:41,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925464627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:41,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:55:41,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:55:41,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108373144] [2022-11-20 10:55:41,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:41,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:55:41,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:55:41,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:55:41,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:41,120 INFO L87 Difference]: Start difference. First operand 14288 states and 19538 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 10:55:43,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:55:46,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:55:46,082 INFO L93 Difference]: Finished difference Result 30100 states and 41057 transitions. [2022-11-20 10:55:46,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:55:46,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 209 [2022-11-20 10:55:46,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:55:46,210 INFO L225 Difference]: With dead ends: 30100 [2022-11-20 10:55:46,210 INFO L226 Difference]: Without dead ends: 15845 [2022-11-20 10:55:46,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:46,296 INFO L413 NwaCegarLoop]: 3969 mSDtfsCounter, 2531 mSDsluCounter, 2965 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2531 SdHoareTripleChecker+Valid, 6934 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:55:46,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2531 Valid, 6934 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-20 10:55:46,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15845 states. [2022-11-20 10:55:47,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15845 to 15814. [2022-11-20 10:55:47,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15814 states, 10511 states have (on average 1.2395585577014556) internal successors, (13029), 10880 states have internal predecessors, (13029), 4202 states have call successors, (4202), 1106 states have call predecessors, (4202), 1098 states have return successors, (4200), 4054 states have call predecessors, (4200), 4198 states have call successors, (4200) [2022-11-20 10:55:47,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15814 states to 15814 states and 21431 transitions. [2022-11-20 10:55:47,702 INFO L78 Accepts]: Start accepts. Automaton has 15814 states and 21431 transitions. Word has length 209 [2022-11-20 10:55:47,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:55:47,703 INFO L495 AbstractCegarLoop]: Abstraction has 15814 states and 21431 transitions. [2022-11-20 10:55:47,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-20 10:55:47,704 INFO L276 IsEmpty]: Start isEmpty. Operand 15814 states and 21431 transitions. [2022-11-20 10:55:47,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-20 10:55:47,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:55:47,715 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 14, 14, 14, 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] [2022-11-20 10:55:47,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:55:47,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:55:47,930 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:55:47,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:55:47,930 INFO L85 PathProgramCache]: Analyzing trace with hash -587193509, now seen corresponding path program 1 times [2022-11-20 10:55:47,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:55:47,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940280859] [2022-11-20 10:55:47,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:55:47,936 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:55:47,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:55:47,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:55:48,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 10:55:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:55:55,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 4510 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:55:55,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:55:55,881 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2022-11-20 10:55:55,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:55:55,882 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:55:55,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940280859] [2022-11-20 10:55:55,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940280859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:55:55,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:55:55,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:55:55,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919216171] [2022-11-20 10:55:55,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:55:55,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:55:55,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:55:55,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:55:55,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:55:55,884 INFO L87 Difference]: Start difference. First operand 15814 states and 21431 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 10:55:58,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:00,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:00,915 INFO L93 Difference]: Finished difference Result 42841 states and 58088 transitions. [2022-11-20 10:56:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:56:00,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 239 [2022-11-20 10:56:00,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:01,096 INFO L225 Difference]: With dead ends: 42841 [2022-11-20 10:56:01,096 INFO L226 Difference]: Without dead ends: 27060 [2022-11-20 10:56:01,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:01,164 INFO L413 NwaCegarLoop]: 4131 mSDtfsCounter, 2866 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2866 SdHoareTripleChecker+Valid, 7116 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:01,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2866 Valid, 7116 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-11-20 10:56:01,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27060 states. [2022-11-20 10:56:03,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27060 to 27019. [2022-11-20 10:56:03,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27019 states, 17997 states have (on average 1.237261765849864) internal successors, (22267), 18650 states have internal predecessors, (22267), 7149 states have call successors, (7149), 1885 states have call predecessors, (7149), 1870 states have return successors, (7149), 6879 states have call predecessors, (7149), 7145 states have call successors, (7149) [2022-11-20 10:56:03,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27019 states to 27019 states and 36565 transitions. [2022-11-20 10:56:03,546 INFO L78 Accepts]: Start accepts. Automaton has 27019 states and 36565 transitions. Word has length 239 [2022-11-20 10:56:03,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:03,547 INFO L495 AbstractCegarLoop]: Abstraction has 27019 states and 36565 transitions. [2022-11-20 10:56:03,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-20 10:56:03,547 INFO L276 IsEmpty]: Start isEmpty. Operand 27019 states and 36565 transitions. [2022-11-20 10:56:03,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-20 10:56:03,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:03,555 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 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] [2022-11-20 10:56:03,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-20 10:56:03,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:56:03,777 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:56:03,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:03,777 INFO L85 PathProgramCache]: Analyzing trace with hash 818549063, now seen corresponding path program 1 times [2022-11-20 10:56:03,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:56:03,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427509563] [2022-11-20 10:56:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:03,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:56:03,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:56:03,782 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:56:03,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 10:56:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:10,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 4477 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:56:10,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:10,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 966 trivial. 0 not checked. [2022-11-20 10:56:10,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:10,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:56:10,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427509563] [2022-11-20 10:56:10,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427509563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:10,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:10,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:56:10,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000792466] [2022-11-20 10:56:10,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:10,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:56:10,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:56:10,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:56:10,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:10,652 INFO L87 Difference]: Start difference. First operand 27019 states and 36565 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 10:56:13,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:56:18,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:56:18,172 INFO L93 Difference]: Finished difference Result 77858 states and 105464 transitions. [2022-11-20 10:56:18,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:56:18,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 245 [2022-11-20 10:56:18,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:56:18,580 INFO L225 Difference]: With dead ends: 77858 [2022-11-20 10:56:18,580 INFO L226 Difference]: Without dead ends: 51872 [2022-11-20 10:56:18,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:18,715 INFO L413 NwaCegarLoop]: 5076 mSDtfsCounter, 2845 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2845 SdHoareTripleChecker+Valid, 8073 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:56:18,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2845 Valid, 8073 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-11-20 10:56:18,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51872 states. [2022-11-20 10:56:22,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51872 to 51868. [2022-11-20 10:56:22,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51868 states, 34581 states have (on average 1.2367195858997715) internal successors, (42767), 35790 states have internal predecessors, (42767), 13685 states have call successors, (13685), 3620 states have call predecessors, (13685), 3599 states have return successors, (13689), 13233 states have call predecessors, (13689), 13681 states have call successors, (13689) [2022-11-20 10:56:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51868 states to 51868 states and 70141 transitions. [2022-11-20 10:56:23,253 INFO L78 Accepts]: Start accepts. Automaton has 51868 states and 70141 transitions. Word has length 245 [2022-11-20 10:56:23,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:56:23,254 INFO L495 AbstractCegarLoop]: Abstraction has 51868 states and 70141 transitions. [2022-11-20 10:56:23,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-20 10:56:23,255 INFO L276 IsEmpty]: Start isEmpty. Operand 51868 states and 70141 transitions. [2022-11-20 10:56:23,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-20 10:56:23,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:56:23,264 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 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] [2022-11-20 10:56:23,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 10:56:23,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:56:23,486 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 10:56:23,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:23,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1553190199, now seen corresponding path program 1 times [2022-11-20 10:56:23,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 10:56:23,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209880796] [2022-11-20 10:56:23,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:23,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 10:56:23,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 10:56:23,494 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 10:56:23,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3246f15e-885c-4d2d-a88d-f855f790e9c2/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 10:56:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:30,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 4477 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:56:30,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:56:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2022-11-20 10:56:34,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:56:34,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 10:56:34,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209880796] [2022-11-20 10:56:34,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209880796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:34,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:34,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:56:34,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662760842] [2022-11-20 10:56:34,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:34,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:56:34,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 10:56:34,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:56:34,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:56:34,652 INFO L87 Difference]: Start difference. First operand 51868 states and 70141 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23)