./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-dec-tulip-dmfe.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/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_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/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_2525e486-17ac-45f2-9823-51e2c3c97760/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 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:36:33,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:36:33,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:36:33,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:36:33,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:36:33,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:36:33,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:36:34,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:36:34,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:36:34,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:36:34,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:36:34,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:36:34,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:36:34,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:36:34,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:36:34,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:36:34,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:36:34,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:36:34,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:36:34,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:36:34,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:36:34,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:36:34,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:36:34,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:36:34,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:36:34,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:36:34,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:36:34,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:36:34,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:36:34,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:36:34,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:36:34,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:36:34,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:36:34,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:36:34,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:36:34,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:36:34,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:36:34,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:36:34,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:36:34,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:36:34,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:36:34,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:36:34,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:36:34,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:36:34,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:36:34,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:36:34,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:36:34,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:36:34,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:36:34,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:36:34,095 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:36:34,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:36:34,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:36:34,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:36:34,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:36:34,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:36:34,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:36:34,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:36:34,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:36:34,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:36:34,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:36:34,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:36:34,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:36:34,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:36:34,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:36:34,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:36:34,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:36:34,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:36:34,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:36:34,099 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:36:34,100 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:36:34,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:36:34,100 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_2525e486-17ac-45f2-9823-51e2c3c97760/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-11-20 12:36:34,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:36:34,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:36:34,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:36:34,445 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:36:34,446 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:36:34,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-11-20 12:36:37,528 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:36:38,267 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:36:38,268 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-11-20 12:36:38,321 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/data/7867d768a/414ce2d4b5c343beb7b0dd891316b78d/FLAG5920851d3 [2022-11-20 12:36:38,338 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/data/7867d768a/414ce2d4b5c343beb7b0dd891316b78d [2022-11-20 12:36:38,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:36:38,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:36:38,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:36:38,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:36:38,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:36:38,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:36:38" (1/1) ... [2022-11-20 12:36:38,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d925361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:38, skipping insertion in model container [2022-11-20 12:36:38,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:36:38" (1/1) ... [2022-11-20 12:36:38,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:36:38,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:36:39,138 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 12:36:39,148 INFO L158 Benchmark]: Toolchain (without parser) took 804.32ms. Allocated memory is still 188.7MB. Free memory was 148.2MB in the beginning and 142.5MB in the end (delta: 5.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-11-20 12:36:39,149 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:36:39,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.98ms. Allocated memory is still 188.7MB. Free memory was 148.2MB in the beginning and 142.5MB in the end (delta: 5.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-11-20 12:36:39,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 801.98ms. Allocated memory is still 188.7MB. Free memory was 148.2MB in the beginning and 142.5MB in the end (delta: 5.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/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_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/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_2525e486-17ac-45f2-9823-51e2c3c97760/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 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:36:41,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:36:41,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:36:41,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:36:41,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:36:41,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:36:41,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:36:41,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:36:41,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:36:41,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:36:41,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:36:41,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:36:41,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:36:41,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:36:41,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:36:41,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:36:41,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:36:41,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:36:41,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:36:41,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:36:41,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:36:41,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:36:41,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:36:41,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:36:41,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:36:41,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:36:41,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:36:41,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:36:41,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:36:41,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:36:41,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:36:41,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:36:41,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:36:41,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:36:41,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:36:41,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:36:41,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:36:41,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:36:41,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:36:41,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:36:41,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:36:41,531 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:36:41,567 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:36:41,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:36:41,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:36:41,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:36:41,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:36:41,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:36:41,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:36:41,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:36:41,571 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:36:41,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:36:41,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:36:41,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:36:41,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:36:41,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:36:41,573 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:36:41,573 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:36:41,573 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:36:41,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:36:41,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:36:41,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:36:41,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:36:41,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:36:41,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:36:41,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:36:41,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:36:41,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:36:41,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:36:41,575 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:36:41,575 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:36:41,576 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:36:41,576 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:36:41,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:36:41,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:36:41,577 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_2525e486-17ac-45f2-9823-51e2c3c97760/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ee317e42bc2e06685ca0df819e5fc98feaca323581d52409851fe6eefd66a2a [2022-11-20 12:36:41,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:36:41,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:36:41,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:36:41,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:36:41,996 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:36:41,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-11-20 12:36:45,113 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:36:45,795 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:36:45,796 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-11-20 12:36:45,861 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/data/ecb3ea517/2f40191d9ef142eabbd7feaeeeba454d/FLAGe4ca8eb03 [2022-11-20 12:36:45,885 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/data/ecb3ea517/2f40191d9ef142eabbd7feaeeeba454d [2022-11-20 12:36:45,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:36:45,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:36:45,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:36:45,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:36:45,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:36:45,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:36:45" (1/1) ... [2022-11-20 12:36:45,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b78704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:45, skipping insertion in model container [2022-11-20 12:36:45,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:36:45" (1/1) ... [2022-11-20 12:36:45,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:36:46,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:36:48,790 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-11-20 12:36:48,795 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-11-20 12:36:48,795 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-11-20 12:36:48,796 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-11-20 12:36:48,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:36:48,882 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:36:48,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:36:49,393 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-11-20 12:36:49,394 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-11-20 12:36:49,394 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-11-20 12:36:49,395 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-11-20 12:36:49,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:36:49,439 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:36:49,801 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323320,323333] [2022-11-20 12:36:49,802 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323489,323502] [2022-11-20 12:36:49,803 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323656,323669] [2022-11-20 12:36:49,803 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_2525e486-17ac-45f2-9823-51e2c3c97760/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i[323824,323837] [2022-11-20 12:36:49,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:36:50,010 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:36:50,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50 WrapperNode [2022-11-20 12:36:50,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:36:50,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:36:50,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:36:50,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:36:50,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,336 INFO L138 Inliner]: procedures = 436, calls = 1985, calls flagged for inlining = 201, calls inlined = 184, statements flattened = 4857 [2022-11-20 12:36:50,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:36:50,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:36:50,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:36:50,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:36:50,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,572 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:36:50,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:36:50,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:36:50,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:36:50,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (1/1) ... [2022-11-20 12:36:50,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:36:50,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:36:50,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:36:50,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:36:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 12:36:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 12:36:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 12:36:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 12:36:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-20 12:36:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-20 12:36:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2022-11-20 12:36:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2022-11-20 12:36:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-20 12:36:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-20 12:36:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 12:36:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 12:36:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2022-11-20 12:36:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2022-11-20 12:36:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:36:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 12:36:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 12:36:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 12:36:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-11-20 12:36:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dmfe_board_info [2022-11-20 12:36:50,713 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 12:36:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 12:36:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-20 12:36:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-20 12:36:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-20 12:36:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-20 12:36:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2022-11-20 12:36:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2022-11-20 12:36:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-20 12:36:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-20 12:36:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 12:36:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 12:36:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2022-11-20 12:36:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2022-11-20 12:36:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-11-20 12:36:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-11-20 12:36:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 12:36:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 12:36:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 12:36:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 12:36:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 12:36:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 12:36:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-20 12:36:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-20 12:36:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 12:36:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 12:36:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 12:36:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 12:36:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-11-20 12:36:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-11-20 12:36:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:36:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:36:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:36:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:36:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2022-11-20 12:36:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2022-11-20 12:36:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 12:36:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 12:36:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 12:36:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 12:36:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-20 12:36:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-20 12:36:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 12:36:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 12:36:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2022-11-20 12:36:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2022-11-20 12:36:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2022-11-20 12:36:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2022-11-20 12:36:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2022-11-20 12:36:50,726 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2022-11-20 12:36:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 12:36:50,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 12:36:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 12:36:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 12:36:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 12:36:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 12:36:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 12:36:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 12:36:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2022-11-20 12:36:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2022-11-20 12:36:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 12:36:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 12:36:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2022-11-20 12:36:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2022-11-20 12:36:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:36:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 12:36:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2022-11-20 12:36:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2022-11-20 12:36:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:36:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-20 12:36:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-20 12:36:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-20 12:36:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-20 12:36:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:36:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2022-11-20 12:36:50,731 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2022-11-20 12:36:50,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 12:36:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 12:36:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 12:36:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 12:36:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:36:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-20 12:36:50,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-20 12:36:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:36:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:36:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:36:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 12:36:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:36:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-20 12:36:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-20 12:36:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2022-11-20 12:36:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2022-11-20 12:36:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 12:36:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 12:36:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 12:36:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 12:36:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-20 12:36:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-20 12:36:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 12:36:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 12:36:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:36:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2022-11-20 12:36:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2022-11-20 12:36:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:36:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:36:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:36:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:36:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:36:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:36:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 12:36:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:36:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 12:36:50,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 12:36:50,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:36:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 12:36:50,749 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 12:36:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 12:36:50,749 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2022-11-20 12:36:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2022-11-20 12:36:50,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 12:36:50,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 12:36:50,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 12:36:50,750 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 12:36:50,750 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-11-20 12:36:50,750 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-11-20 12:36:50,751 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-20 12:36:50,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-20 12:36:50,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 12:36:50,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 12:36:50,752 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2022-11-20 12:36:50,752 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2022-11-20 12:36:50,752 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 12:36:50,752 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 12:36:50,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:36:50,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:36:50,753 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-20 12:36:50,753 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-20 12:36:50,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-20 12:36:50,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-20 12:36:50,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:36:50,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:36:50,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 12:36:50,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:36:50,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:36:50,754 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2022-11-20 12:36:50,754 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2022-11-20 12:36:50,754 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 12:36:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 12:36:50,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 12:36:50,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 12:36:50,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-20 12:36:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-20 12:36:50,756 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 12:36:50,756 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 12:36:50,756 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2022-11-20 12:36:50,757 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2022-11-20 12:36:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:36:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:36:50,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:36:50,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:36:50,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 12:36:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 12:36:50,759 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2022-11-20 12:36:50,759 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2022-11-20 12:36:50,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-11-20 12:36:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_dmfe_cleanup_module_14_2 [2022-11-20 12:36:50,760 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2022-11-20 12:36:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2022-11-20 12:36:50,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 12:36:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 12:36:50,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 12:36:50,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 12:36:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-20 12:36:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-20 12:36:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 12:36:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 12:36:51,720 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:36:51,724 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:36:54,307 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 12:37:37,118 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-20 12:37:37,222 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:37:37,242 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:37:37,243 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:37:37,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:37 BoogieIcfgContainer [2022-11-20 12:37:37,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:37:37,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:37:37,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:37:37,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:37:37,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:36:45" (1/3) ... [2022-11-20 12:37:37,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6e4d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:37:37, skipping insertion in model container [2022-11-20 12:37:37,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:36:50" (2/3) ... [2022-11-20 12:37:37,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b6e4d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:37:37, skipping insertion in model container [2022-11-20 12:37:37,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:37:37" (3/3) ... [2022-11-20 12:37:37,259 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dec-tulip-dmfe.cil.i [2022-11-20 12:37:37,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:37:37,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-20 12:37:37,357 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:37:37,363 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;@5cc9407b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:37:37,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-20 12:37:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1181 states have (on average 1.2997459779847587) internal successors, (1535), 1204 states have internal predecessors, (1535), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) [2022-11-20 12:37:37,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-20 12:37:37,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:37:37,394 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:37:37,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:37:37,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:37:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash 741231917, now seen corresponding path program 1 times [2022-11-20 12:37:37,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:37:37,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116638602] [2022-11-20 12:37:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:37:37,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:37,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:37:37,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:37:37,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:37:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:37:38,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:37:38,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:37:38,839 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:37:38,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:37:38,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:37:38,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116638602] [2022-11-20 12:37:38,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116638602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:37:38,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:37:38,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:37:38,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356389800] [2022-11-20 12:37:38,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:37:38,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:37:38,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:37:38,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:37:38,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:38,908 INFO L87 Difference]: Start difference. First operand has 1686 states, 1181 states have (on average 1.2997459779847587) internal successors, (1535), 1204 states have internal predecessors, (1535), 420 states have call successors, (420), 83 states have call predecessors, (420), 82 states have return successors, (414), 405 states have call predecessors, (414), 414 states have call successors, (414) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:37:39,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:37:39,542 INFO L93 Difference]: Finished difference Result 4903 states and 6994 transitions. [2022-11-20 12:37:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:37:39,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-11-20 12:37:39,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:37:39,579 INFO L225 Difference]: With dead ends: 4903 [2022-11-20 12:37:39,580 INFO L226 Difference]: Without dead ends: 3228 [2022-11-20 12:37:39,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:39,596 INFO L413 NwaCegarLoop]: 2744 mSDtfsCounter, 2225 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2225 SdHoareTripleChecker+Valid, 5020 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:37:39,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2225 Valid, 5020 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:37:39,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2022-11-20 12:37:39,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 3224. [2022-11-20 12:37:39,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3224 states, 2274 states have (on average 1.29155672823219) internal successors, (2937), 2319 states have internal predecessors, (2937), 787 states have call successors, (787), 161 states have call predecessors, (787), 160 states have return successors, (783), 765 states have call predecessors, (783), 783 states have call successors, (783) [2022-11-20 12:37:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3224 states to 3224 states and 4507 transitions. [2022-11-20 12:37:39,894 INFO L78 Accepts]: Start accepts. Automaton has 3224 states and 4507 transitions. Word has length 116 [2022-11-20 12:37:39,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:37:39,895 INFO L495 AbstractCegarLoop]: Abstraction has 3224 states and 4507 transitions. [2022-11-20 12:37:39,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:37:39,896 INFO L276 IsEmpty]: Start isEmpty. Operand 3224 states and 4507 transitions. [2022-11-20 12:37:39,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 12:37:39,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:37:39,907 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:37:39,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:37:40,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:40,123 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:37:40,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:37:40,124 INFO L85 PathProgramCache]: Analyzing trace with hash 614587750, now seen corresponding path program 1 times [2022-11-20 12:37:40,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:37:40,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670886830] [2022-11-20 12:37:40,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:37:40,126 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:40,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:37:40,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:37:40,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:37:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:37:41,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:37:41,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:37:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:37:41,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:37:41,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:37:41,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670886830] [2022-11-20 12:37:41,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670886830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:37:41,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:37:41,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:37:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303318987] [2022-11-20 12:37:41,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:37:41,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:37:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:37:41,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:37:41,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:41,447 INFO L87 Difference]: Start difference. First operand 3224 states and 4507 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:37:42,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:37:42,120 INFO L93 Difference]: Finished difference Result 9538 states and 13351 transitions. [2022-11-20 12:37:42,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:37:42,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2022-11-20 12:37:42,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:37:42,182 INFO L225 Difference]: With dead ends: 9538 [2022-11-20 12:37:42,182 INFO L226 Difference]: Without dead ends: 6335 [2022-11-20 12:37:42,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:42,210 INFO L413 NwaCegarLoop]: 2746 mSDtfsCounter, 2275 mSDsluCounter, 2290 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 5036 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:37:42,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 5036 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:37:42,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6335 states. [2022-11-20 12:37:42,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6335 to 6305. [2022-11-20 12:37:42,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6305 states, 4463 states have (on average 1.2941967286578535) internal successors, (5776), 4557 states have internal predecessors, (5776), 1522 states have call successors, (1522), 320 states have call predecessors, (1522), 317 states have return successors, (1528), 1471 states have call predecessors, (1528), 1518 states have call successors, (1528) [2022-11-20 12:37:42,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6305 states to 6305 states and 8826 transitions. [2022-11-20 12:37:42,789 INFO L78 Accepts]: Start accepts. Automaton has 6305 states and 8826 transitions. Word has length 122 [2022-11-20 12:37:42,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:37:42,790 INFO L495 AbstractCegarLoop]: Abstraction has 6305 states and 8826 transitions. [2022-11-20 12:37:42,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:37:42,791 INFO L276 IsEmpty]: Start isEmpty. Operand 6305 states and 8826 transitions. [2022-11-20 12:37:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-20 12:37:42,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:37:42,801 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:37:42,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:37:43,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:43,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:37:43,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:37:43,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1235054025, now seen corresponding path program 1 times [2022-11-20 12:37:43,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:37:43,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585628161] [2022-11-20 12:37:43,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:37:43,030 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:43,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:37:43,033 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:37:43,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:37:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:37:44,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:37:44,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:37:44,243 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:37:44,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:37:44,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:37:44,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585628161] [2022-11-20 12:37:44,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585628161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:37:44,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:37:44,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:37:44,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272652057] [2022-11-20 12:37:44,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:37:44,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:37:44,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:37:44,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:37:44,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:44,245 INFO L87 Difference]: Start difference. First operand 6305 states and 8826 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:37:45,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:37:45,042 INFO L93 Difference]: Finished difference Result 17963 states and 25082 transitions. [2022-11-20 12:37:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:37:45,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 122 [2022-11-20 12:37:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:37:45,120 INFO L225 Difference]: With dead ends: 17963 [2022-11-20 12:37:45,124 INFO L226 Difference]: Without dead ends: 11679 [2022-11-20 12:37:45,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:45,152 INFO L413 NwaCegarLoop]: 2803 mSDtfsCounter, 2000 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 5082 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:37:45,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 5082 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 12:37:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11679 states. [2022-11-20 12:37:45,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11679 to 11645. [2022-11-20 12:37:45,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11645 states, 8247 states have (on average 1.290651145871226) internal successors, (10644), 8429 states have internal predecessors, (10644), 2784 states have call successors, (2784), 618 states have call predecessors, (2784), 611 states have return successors, (2806), 2681 states have call predecessors, (2806), 2780 states have call successors, (2806) [2022-11-20 12:37:45,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11645 states to 11645 states and 16234 transitions. [2022-11-20 12:37:45,967 INFO L78 Accepts]: Start accepts. Automaton has 11645 states and 16234 transitions. Word has length 122 [2022-11-20 12:37:45,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:37:45,970 INFO L495 AbstractCegarLoop]: Abstraction has 11645 states and 16234 transitions. [2022-11-20 12:37:45,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:37:45,970 INFO L276 IsEmpty]: Start isEmpty. Operand 11645 states and 16234 transitions. [2022-11-20 12:37:45,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-20 12:37:45,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:37:45,973 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:37:46,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:37:46,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:46,197 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:37:46,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:37:46,198 INFO L85 PathProgramCache]: Analyzing trace with hash 177538813, now seen corresponding path program 1 times [2022-11-20 12:37:46,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:37:46,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218795392] [2022-11-20 12:37:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:37:46,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:46,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:37:46,201 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:37:46,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:37:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:37:47,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:37:47,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:37:47,485 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:37:47,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:37:47,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:37:47,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218795392] [2022-11-20 12:37:47,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218795392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:37:47,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:37:47,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:37:47,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883972548] [2022-11-20 12:37:47,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:37:47,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:37:47,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:37:47,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:37:47,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:47,488 INFO L87 Difference]: Start difference. First operand 11645 states and 16234 transitions. 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:37:48,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:37:48,532 INFO L93 Difference]: Finished difference Result 22853 states and 31854 transitions. [2022-11-20 12:37:48,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:37:48,533 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 126 [2022-11-20 12:37:48,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:37:48,613 INFO L225 Difference]: With dead ends: 22853 [2022-11-20 12:37:48,614 INFO L226 Difference]: Without dead ends: 11229 [2022-11-20 12:37:48,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:48,673 INFO L413 NwaCegarLoop]: 2953 mSDtfsCounter, 1626 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1626 SdHoareTripleChecker+Valid, 5229 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:37:48,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1626 Valid, 5229 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:37:48,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11229 states. [2022-11-20 12:37:49,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11229 to 11197. [2022-11-20 12:37:49,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11197 states, 8045 states have (on average 1.2970789310130515) internal successors, (10435), 8228 states have internal predecessors, (10435), 2534 states have call successors, (2534), 623 states have call predecessors, (2534), 615 states have return successors, (2543), 2426 states have call predecessors, (2543), 2530 states have call successors, (2543) [2022-11-20 12:37:49,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11197 states to 11197 states and 15512 transitions. [2022-11-20 12:37:49,609 INFO L78 Accepts]: Start accepts. Automaton has 11197 states and 15512 transitions. Word has length 126 [2022-11-20 12:37:49,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:37:49,611 INFO L495 AbstractCegarLoop]: Abstraction has 11197 states and 15512 transitions. [2022-11-20 12:37:49,612 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, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:37:49,612 INFO L276 IsEmpty]: Start isEmpty. Operand 11197 states and 15512 transitions. [2022-11-20 12:37:49,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-20 12:37:49,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:37:49,615 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:37:49,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:37:49,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:49,839 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 12:37:49,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:37:49,840 INFO L85 PathProgramCache]: Analyzing trace with hash 18888232, now seen corresponding path program 1 times [2022-11-20 12:37:49,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:37:49,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852295090] [2022-11-20 12:37:49,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:37:49,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:49,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:37:49,843 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:37:49,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:37:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:37:51,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:37:51,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:37:51,124 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:37:51,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:37:51,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:37:51,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852295090] [2022-11-20 12:37:51,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852295090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:37:51,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:37:51,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:37:51,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145853380] [2022-11-20 12:37:51,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:37:51,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:37:51,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:37:51,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:37:51,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:51,126 INFO L87 Difference]: Start difference. First operand 11197 states and 15512 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:37:52,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:37:52,395 INFO L93 Difference]: Finished difference Result 29428 states and 40822 transitions. [2022-11-20 12:37:52,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:37:52,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2022-11-20 12:37:52,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:37:52,489 INFO L225 Difference]: With dead ends: 29428 [2022-11-20 12:37:52,489 INFO L226 Difference]: Without dead ends: 18252 [2022-11-20 12:37:52,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:52,527 INFO L413 NwaCegarLoop]: 2726 mSDtfsCounter, 2120 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 5002 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:37:52,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2120 Valid, 5002 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:37:52,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18252 states. [2022-11-20 12:37:53,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18252 to 18221. [2022-11-20 12:37:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18221 states, 13036 states have (on average 1.295796256520405) internal successors, (16892), 13329 states have internal predecessors, (16892), 4166 states have call successors, (4166), 1031 states have call predecessors, (4166), 1016 states have return successors, (4191), 3974 states have call predecessors, (4191), 4162 states have call successors, (4191) [2022-11-20 12:37:53,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18221 states to 18221 states and 25249 transitions. [2022-11-20 12:37:53,994 INFO L78 Accepts]: Start accepts. Automaton has 18221 states and 25249 transitions. Word has length 128 [2022-11-20 12:37:53,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:37:53,995 INFO L495 AbstractCegarLoop]: Abstraction has 18221 states and 25249 transitions. [2022-11-20 12:37:53,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-20 12:37:53,996 INFO L276 IsEmpty]: Start isEmpty. Operand 18221 states and 25249 transitions. [2022-11-20 12:37:53,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-20 12:37:53,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:37:53,999 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 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] [2022-11-20 12:37:54,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/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 12:37:54,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:54,215 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:37:54,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:37:54,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1580833041, now seen corresponding path program 1 times [2022-11-20 12:37:54,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:37:54,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1335666558] [2022-11-20 12:37:54,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:37:54,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:37:54,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:37:54,219 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:37:54,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:37:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:37:55,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:37:55,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:37:55,398 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-20 12:37:55,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:37:55,398 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:37:55,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1335666558] [2022-11-20 12:37:55,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1335666558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:37:55,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:37:55,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:37:55,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183251171] [2022-11-20 12:37:55,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:37:55,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:37:55,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:37:55,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:37:55,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:55,401 INFO L87 Difference]: Start difference. First operand 18221 states and 25249 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, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:37:57,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:37:57,214 INFO L93 Difference]: Finished difference Result 52967 states and 73458 transitions. [2022-11-20 12:37:57,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:37:57,214 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, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 145 [2022-11-20 12:37:57,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:37:57,382 INFO L225 Difference]: With dead ends: 52967 [2022-11-20 12:37:57,382 INFO L226 Difference]: Without dead ends: 34767 [2022-11-20 12:37:57,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:37:57,448 INFO L413 NwaCegarLoop]: 3082 mSDtfsCounter, 2286 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2286 SdHoareTripleChecker+Valid, 5409 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:37:57,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2286 Valid, 5409 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:37:57,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34767 states. [2022-11-20 12:37:59,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34767 to 34709. [2022-11-20 12:37:59,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34709 states, 24800 states have (on average 1.2961290322580645) internal successors, (32144), 25392 states have internal predecessors, (32144), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-11-20 12:38:00,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34709 states to 34709 states and 48120 transitions. [2022-11-20 12:38:00,032 INFO L78 Accepts]: Start accepts. Automaton has 34709 states and 48120 transitions. Word has length 145 [2022-11-20 12:38:00,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:00,033 INFO L495 AbstractCegarLoop]: Abstraction has 34709 states and 48120 transitions. [2022-11-20 12:38:00,033 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, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-20 12:38:00,033 INFO L276 IsEmpty]: Start isEmpty. Operand 34709 states and 48120 transitions. [2022-11-20 12:38:00,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 12:38:00,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:00,036 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:00,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:38:00,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:38:00,260 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:38:00,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:00,260 INFO L85 PathProgramCache]: Analyzing trace with hash -837279619, now seen corresponding path program 1 times [2022-11-20 12:38:00,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:38:00,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489592036] [2022-11-20 12:38:00,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:00,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:38:00,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:38:00,265 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:38:00,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:38:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:01,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:38:01,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:38:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-20 12:38:02,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:38:02,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:38:02,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489592036] [2022-11-20 12:38:02,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489592036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:02,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:02,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:38:02,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100450509] [2022-11-20 12:38:02,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:02,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:38:02,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:38:02,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:38:02,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:38:02,125 INFO L87 Difference]: Start difference. First operand 34709 states and 48120 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 12:38:05,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:05,658 INFO L93 Difference]: Finished difference Result 103973 states and 145760 transitions. [2022-11-20 12:38:05,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:38:05,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-11-20 12:38:05,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:06,026 INFO L225 Difference]: With dead ends: 103973 [2022-11-20 12:38:06,027 INFO L226 Difference]: Without dead ends: 69341 [2022-11-20 12:38:06,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:38:06,190 INFO L413 NwaCegarLoop]: 4012 mSDtfsCounter, 2264 mSDsluCounter, 2255 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 6267 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:06,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2264 Valid, 6267 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:38:06,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69341 states. [2022-11-20 12:38:10,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69341 to 69315. [2022-11-20 12:38:10,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69315 states, 49526 states have (on average 1.2842547348867261) internal successors, (63604), 50708 states have internal predecessors, (63604), 15897 states have call successors, (15897), 3946 states have call predecessors, (15897), 3889 states have return successors, (16623), 15100 states have call predecessors, (16623), 15893 states have call successors, (16623) [2022-11-20 12:38:11,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69315 states to 69315 states and 96124 transitions. [2022-11-20 12:38:11,298 INFO L78 Accepts]: Start accepts. Automaton has 69315 states and 96124 transitions. Word has length 183 [2022-11-20 12:38:11,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:11,299 INFO L495 AbstractCegarLoop]: Abstraction has 69315 states and 96124 transitions. [2022-11-20 12:38:11,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 12:38:11,299 INFO L276 IsEmpty]: Start isEmpty. Operand 69315 states and 96124 transitions. [2022-11-20 12:38:11,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 12:38:11,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:11,303 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:11,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:38:11,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:38:11,519 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:38:11,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:11,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1071178171, now seen corresponding path program 1 times [2022-11-20 12:38:11,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:38:11,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208344338] [2022-11-20 12:38:11,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:11,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:38:11,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:38:11,879 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:38:11,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:38:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:12,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:38:12,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:38:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-20 12:38:13,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:38:13,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:38:13,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208344338] [2022-11-20 12:38:13,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208344338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:13,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:13,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:38:13,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93485676] [2022-11-20 12:38:13,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:13,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:38:13,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:38:13,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:38:13,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:38:13,547 INFO L87 Difference]: Start difference. First operand 69315 states and 96124 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 12:38:16,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:38:16,105 INFO L93 Difference]: Finished difference Result 103947 states and 143549 transitions. [2022-11-20 12:38:16,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:38:16,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 183 [2022-11-20 12:38:16,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:38:16,271 INFO L225 Difference]: With dead ends: 103947 [2022-11-20 12:38:16,271 INFO L226 Difference]: Without dead ends: 34709 [2022-11-20 12:38:16,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:38:16,491 INFO L413 NwaCegarLoop]: 2311 mSDtfsCounter, 2256 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:38:16,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 2311 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:38:16,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34709 states. [2022-11-20 12:38:18,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34709 to 34709. [2022-11-20 12:38:18,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34709 states, 24800 states have (on average 1.270483870967742) internal successors, (31508), 25392 states have internal predecessors, (31508), 7961 states have call successors, (7961), 1974 states have call predecessors, (7961), 1945 states have return successors, (8015), 7562 states have call predecessors, (8015), 7957 states have call successors, (8015) [2022-11-20 12:38:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34709 states to 34709 states and 47484 transitions. [2022-11-20 12:38:19,076 INFO L78 Accepts]: Start accepts. Automaton has 34709 states and 47484 transitions. Word has length 183 [2022-11-20 12:38:19,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:38:19,077 INFO L495 AbstractCegarLoop]: Abstraction has 34709 states and 47484 transitions. [2022-11-20 12:38:19,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-20 12:38:19,078 INFO L276 IsEmpty]: Start isEmpty. Operand 34709 states and 47484 transitions. [2022-11-20 12:38:19,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-20 12:38:19,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:38:19,085 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:38:19,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:38:19,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:38:19,299 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-20 12:38:19,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:38:19,300 INFO L85 PathProgramCache]: Analyzing trace with hash 578551997, now seen corresponding path program 1 times [2022-11-20 12:38:19,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:38:19,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929071713] [2022-11-20 12:38:19,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:38:19,301 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:38:19,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:38:19,302 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:38:19,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2525e486-17ac-45f2-9823-51e2c3c97760/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 12:38:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:38:20,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 1254 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:38:20,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:38:21,073 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-11-20 12:38:21,073 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:38:21,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:38:21,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [929071713] [2022-11-20 12:38:21,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [929071713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:38:21,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:38:21,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:38:21,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080798812] [2022-11-20 12:38:21,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:38:21,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:38:21,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:38:21,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:38:21,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:38:21,076 INFO L87 Difference]: Start difference. First operand 34709 states and 47484 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)