./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- 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-b5237d8 [2022-11-22 01:23:11,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:23:11,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:23:12,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:23:12,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:23:12,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:23:12,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:23:12,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:23:12,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:23:12,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:23:12,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:23:12,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:23:12,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:23:12,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:23:12,049 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:23:12,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:23:12,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:23:12,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:23:12,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:23:12,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:23:12,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:23:12,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:23:12,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:23:12,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:23:12,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:23:12,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:23:12,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:23:12,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:23:12,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:23:12,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:23:12,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:23:12,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:23:12,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:23:12,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:23:12,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:23:12,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:23:12,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:23:12,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:23:12,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:23:12,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:23:12,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:23:12,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:23:12,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:23:12,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:23:12,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:23:12,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:23:12,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:23:12,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:23:12,150 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:23:12,150 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:23:12,150 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:23:12,150 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:23:12,151 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:23:12,152 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:23:12,152 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:23:12,152 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:23:12,152 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:23:12,153 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:23:12,153 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:23:12,153 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:23:12,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:23:12,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:23:12,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:23:12,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:23:12,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:23:12,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:23:12,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:23:12,156 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:23:12,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:23:12,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:23:12,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:23:12,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:12,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:23:12,158 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:23:12,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:23:12,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:23:12,159 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:23:12,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:23:12,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:23:12,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:23:12,160 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_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2022-11-22 01:23:12,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:23:12,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:23:12,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:23:12,485 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:23:12,486 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:23:12,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-22 01:23:15,615 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:23:16,223 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:23:16,224 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-22 01:23:16,268 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/data/aeafbd5fa/b3e1821f5af246bda3e150a7a1924664/FLAG57de4f2ba [2022-11-22 01:23:16,290 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/data/aeafbd5fa/b3e1821f5af246bda3e150a7a1924664 [2022-11-22 01:23:16,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:23:16,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:23:16,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:16,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:23:16,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:23:16,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:16" (1/1) ... [2022-11-22 01:23:16,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eac1552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:16, skipping insertion in model container [2022-11-22 01:23:16,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:16" (1/1) ... [2022-11-22 01:23:16,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:23:16,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:23:17,823 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.AssertionError: Unknown Expression StructAccessExpression at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:424) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromBinaryExpression(TypeSizes.java:562) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:416) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValueFromBinaryExpression(TypeSizes.java:656) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:632) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueFromIfThenElseExpression(TypeSizes.java:550) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:367) 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: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:728) 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:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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:1867) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:202) 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) [2022-11-22 01:23:17,835 INFO L158 Benchmark]: Toolchain (without parser) took 1531.28ms. Allocated memory is still 192.9MB. Free memory was 133.3MB in the beginning and 121.7MB in the end (delta: 11.6MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2022-11-22 01:23:17,836 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 132.1MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:23:17,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1528.90ms. Allocated memory is still 192.9MB. Free memory was 133.3MB in the beginning and 121.7MB in the end (delta: 11.6MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2022-11-22 01:23:17,838 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 132.1MB. Free memory is still 73.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1528.90ms. Allocated memory is still 192.9MB. Free memory was 133.3MB in the beginning and 121.7MB in the end (delta: 11.6MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: Unknown Expression StructAccessExpression de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: Unknown Expression StructAccessExpression: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:424) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- 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-b5237d8 [2022-11-22 01:23:20,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:23:20,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:23:20,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:23:20,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:23:20,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:23:20,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:23:20,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:23:20,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:23:20,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:23:20,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:23:20,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:23:20,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:23:20,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:23:20,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:23:20,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:23:20,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:23:20,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:23:20,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:23:20,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:23:20,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:23:20,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:23:20,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:23:20,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:23:20,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:23:20,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:23:20,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:23:20,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:23:20,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:23:20,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:23:20,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:23:20,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:23:20,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:23:20,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:23:20,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:23:20,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:23:20,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:23:20,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:23:20,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:23:20,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:23:20,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:23:20,315 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 01:23:20,360 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:23:20,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:23:20,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:23:20,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:23:20,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:23:20,364 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:23:20,364 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:23:20,364 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:23:20,364 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:23:20,365 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:23:20,366 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:23:20,366 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:23:20,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:23:20,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:23:20,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:23:20,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:23:20,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:23:20,368 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:23:20,368 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:23:20,368 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:23:20,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:23:20,369 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:23:20,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:23:20,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:23:20,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:23:20,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:23:20,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:20,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:23:20,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:23:20,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:23:20,371 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:23:20,371 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:23:20,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:23:20,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:23:20,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:23:20,372 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_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2022-11-22 01:23:20,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:23:20,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:23:20,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:23:20,822 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:23:20,823 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:23:20,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-22 01:23:24,083 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:23:24,668 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:23:24,669 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-22 01:23:24,712 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/data/4fac71e83/f5dd2b9536af4f54bb241f7241f9b408/FLAG98fc1bc16 [2022-11-22 01:23:24,731 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/data/4fac71e83/f5dd2b9536af4f54bb241f7241f9b408 [2022-11-22 01:23:24,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:23:24,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:23:24,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:24,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:23:24,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:23:24,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:24" (1/1) ... [2022-11-22 01:23:24,744 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4304db4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:24, skipping insertion in model container [2022-11-22 01:23:24,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:24" (1/1) ... [2022-11-22 01:23:24,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:23:24,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:23:27,696 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_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-11-22 01:23:27,699 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_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-11-22 01:23:27,700 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_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-11-22 01:23:27,701 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_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-11-22 01:23:27,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:27,790 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-22 01:23:27,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:23:28,235 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_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-11-22 01:23:28,246 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_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-11-22 01:23:28,247 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_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-11-22 01:23:28,247 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_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-11-22 01:23:28,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:28,315 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:23:28,725 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-11-22 01:23:28,725 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-11-22 01:23:28,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-11-22 01:23:28,726 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-11-22 01:23:28,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:28,976 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:23:28,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28 WrapperNode [2022-11-22 01:23:28,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:28,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:23:28,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:23:28,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:23:28,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,289 INFO L138 Inliner]: procedures = 445, calls = 1714, calls flagged for inlining = 201, calls inlined = 185, statements flattened = 3950 [2022-11-22 01:23:29,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:23:29,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:23:29,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:23:29,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:23:29,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,597 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:23:29,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:23:29,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:23:29,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:23:29,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (1/1) ... [2022-11-22 01:23:29,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:29,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:29,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:23:29,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:23:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-22 01:23:29,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-22 01:23:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:23:29,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:23:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:23:29,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:23:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:23:29,829 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:23:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:23:29,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:23:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:23:29,830 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:23:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-22 01:23:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-22 01:23:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:23:29,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:23:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:23:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:23:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-22 01:23:29,833 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-22 01:23:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-22 01:23:29,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-22 01:23:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-22 01:23:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-22 01:23:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-22 01:23:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-22 01:23:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:23:29,835 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:23:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-22 01:23:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-22 01:23:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-22 01:23:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-22 01:23:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-22 01:23:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-22 01:23:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:23:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:23:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-22 01:23:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-22 01:23:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-22 01:23:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-22 01:23:29,838 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:23:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:23:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:23:29,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:23:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:23:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:23:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:23:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-22 01:23:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:23:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-22 01:23:29,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-22 01:23:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-22 01:23:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-22 01:23:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-11-22 01:23:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-11-22 01:23:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:23:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:23:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:23:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:23:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-22 01:23:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-22 01:23:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:23:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:23:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:23:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:23:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:23:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:23:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:23:29,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:23:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:23:29,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:23:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:23:29,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:23:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 01:23:29,845 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 01:23:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:23:29,845 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:23:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:23:29,846 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:23:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-22 01:23:29,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-22 01:23:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:23:29,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:23:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-22 01:23:29,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-22 01:23:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:23:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:23:29,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:23:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:23:29,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:23:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:23:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:23:29,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:23:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:23:29,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:23:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:23:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-22 01:23:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-22 01:23:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-22 01:23:29,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-22 01:23:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:23:29,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:23:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-22 01:23:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-22 01:23:29,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-22 01:23:29,851 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-22 01:23:29,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-22 01:23:29,851 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:23:29,851 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:23:29,851 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:23:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:23:29,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:23:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:23:29,852 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-22 01:23:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-22 01:23:29,852 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-22 01:23:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-22 01:23:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-22 01:23:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-22 01:23:29,853 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:23:29,853 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:23:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-22 01:23:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-22 01:23:29,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-22 01:23:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-22 01:23:29,854 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-22 01:23:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:23:29,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:23:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-22 01:23:29,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-22 01:23:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-22 01:23:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-22 01:23:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:23:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:23:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-22 01:23:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:23:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:23:29,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:23:29,857 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-22 01:23:29,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-22 01:23:29,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:23:29,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:23:29,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:23:29,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:23:29,858 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:23:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:23:29,858 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:23:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:23:29,858 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:23:29,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:23:29,859 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-22 01:23:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-22 01:23:29,859 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-22 01:23:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-22 01:23:29,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:23:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:23:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:23:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:23:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2022-11-22 01:23:29,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2022-11-22 01:23:29,860 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-22 01:23:29,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-22 01:23:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-22 01:23:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-22 01:23:29,861 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-22 01:23:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-22 01:23:29,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-22 01:23:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:23:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:23:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 01:23:29,862 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 01:23:29,862 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:23:29,862 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:23:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:23:29,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:23:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:23:29,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:23:29,863 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-22 01:23:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-22 01:23:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-22 01:23:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-22 01:23:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-22 01:23:29,864 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-22 01:23:29,864 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 01:23:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 01:23:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:23:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:23:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:23:29,865 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:23:29,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-22 01:23:29,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-22 01:23:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:23:29,866 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:23:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-22 01:23:29,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-22 01:23:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-22 01:23:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-22 01:23:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-22 01:23:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-22 01:23:29,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:23:29,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:23:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-11-22 01:23:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-11-22 01:23:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-22 01:23:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-22 01:23:29,868 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-22 01:23:29,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-22 01:23:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-22 01:23:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-22 01:23:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2022-11-22 01:23:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2022-11-22 01:23:29,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:23:29,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:23:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-22 01:23:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-22 01:23:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 01:23:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 01:23:29,870 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-22 01:23:29,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-22 01:23:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 01:23:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-22 01:23:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-22 01:23:29,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:23:29,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:23:30,829 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:23:30,836 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:23:36,367 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:24:14,335 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:24:14,411 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:24:14,429 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:24:14,429 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:24:14,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:24:14 BoogieIcfgContainer [2022-11-22 01:24:14,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:24:14,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:24:14,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:24:14,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:24:14,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:23:24" (1/3) ... [2022-11-22 01:24:14,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240d8b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:24:14, skipping insertion in model container [2022-11-22 01:24:14,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:28" (2/3) ... [2022-11-22 01:24:14,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240d8b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:24:14, skipping insertion in model container [2022-11-22 01:24:14,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:24:14" (3/3) ... [2022-11-22 01:24:14,442 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-22 01:24:14,460 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:24:14,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:24:14,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:24:14,571 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=FINITE_AUTOMATA, 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;@77ac26d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:24:14,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:24:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 1674 states, 1121 states have (on average 1.2488849241748439) internal successors, (1400), 1156 states have internal predecessors, (1400), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) [2022-11-22 01:24:14,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:24:14,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:14,616 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] [2022-11-22 01:24:14,617 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)] === [2022-11-22 01:24:14,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:14,624 INFO L85 PathProgramCache]: Analyzing trace with hash -274697905, now seen corresponding path program 1 times [2022-11-22 01:24:14,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:24:14,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300616201] [2022-11-22 01:24:14,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:14,642 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 [2022-11-22 01:24:14,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:24:14,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:24:14,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:15,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:24:15,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-22 01:24:16,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:24:16,114 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:24:16,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300616201] [2022-11-22 01:24:16,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300616201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:16,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:16,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:24:16,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565802834] [2022-11-22 01:24:16,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:16,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:16,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:24:16,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:16,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:16,193 INFO L87 Difference]: Start difference. First operand has 1674 states, 1121 states have (on average 1.2488849241748439) internal successors, (1400), 1156 states have internal predecessors, (1400), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) 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) [2022-11-22 01:24:16,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:16,915 INFO L93 Difference]: Finished difference Result 4874 states and 6858 transitions. [2022-11-22 01:24:16,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:24:16,918 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 [2022-11-22 01:24:16,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:16,962 INFO L225 Difference]: With dead ends: 4874 [2022-11-22 01:24:16,962 INFO L226 Difference]: Without dead ends: 3211 [2022-11-22 01:24:16,983 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 [2022-11-22 01:24:16,993 INFO L413 NwaCegarLoop]: 2707 mSDtfsCounter, 2157 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 4939 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:16,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2157 Valid, 4939 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:24:17,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2022-11-22 01:24:17,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 3207. [2022-11-22 01:24:17,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 2160 states have (on average 1.2421296296296296) internal successors, (2683), 2227 states have internal predecessors, (2683), 858 states have call successors, (858), 187 states have call predecessors, (858), 186 states have return successors, (854), 848 states have call predecessors, (854), 854 states have call successors, (854) [2022-11-22 01:24:17,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 4395 transitions. [2022-11-22 01:24:17,357 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 4395 transitions. Word has length 116 [2022-11-22 01:24:17,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:17,358 INFO L495 AbstractCegarLoop]: Abstraction has 3207 states and 4395 transitions. [2022-11-22 01:24:17,359 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) [2022-11-22 01:24:17,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 4395 transitions. [2022-11-22 01:24:17,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-22 01:24:17,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:17,368 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] [2022-11-22 01:24:17,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:17,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:17,592 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)] === [2022-11-22 01:24:17,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:17,593 INFO L85 PathProgramCache]: Analyzing trace with hash -756882936, now seen corresponding path program 1 times [2022-11-22 01:24:17,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:24:17,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271712703] [2022-11-22 01:24:17,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:17,595 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 [2022-11-22 01:24:17,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:24:17,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:24:17,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:18,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:24:18,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:19,148 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-22 01:24:19,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:24:19,149 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:24:19,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271712703] [2022-11-22 01:24:19,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [271712703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:19,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:19,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:24:19,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237193142] [2022-11-22 01:24:19,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:19,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:19,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:24:19,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:19,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:19,153 INFO L87 Difference]: Start difference. First operand 3207 states and 4395 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2022-11-22 01:24:19,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:19,827 INFO L93 Difference]: Finished difference Result 8861 states and 12103 transitions. [2022-11-22 01:24:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:24:19,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 120 [2022-11-22 01:24:19,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:19,870 INFO L225 Difference]: With dead ends: 8861 [2022-11-22 01:24:19,870 INFO L226 Difference]: Without dead ends: 5675 [2022-11-22 01:24:19,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:19,885 INFO L413 NwaCegarLoop]: 2721 mSDtfsCounter, 1754 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 4930 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:19,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 4930 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:24:19,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5675 states. [2022-11-22 01:24:20,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5675 to 5646. [2022-11-22 01:24:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5646 states, 3795 states have (on average 1.230566534914361) internal successors, (4670), 3909 states have internal predecessors, (4670), 1503 states have call successors, (1503), 352 states have call predecessors, (1503), 345 states have return successors, (1519), 1470 states have call predecessors, (1519), 1499 states have call successors, (1519) [2022-11-22 01:24:20,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5646 states to 5646 states and 7692 transitions. [2022-11-22 01:24:20,246 INFO L78 Accepts]: Start accepts. Automaton has 5646 states and 7692 transitions. Word has length 120 [2022-11-22 01:24:20,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:20,247 INFO L495 AbstractCegarLoop]: Abstraction has 5646 states and 7692 transitions. [2022-11-22 01:24:20,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2022-11-22 01:24:20,248 INFO L276 IsEmpty]: Start isEmpty. Operand 5646 states and 7692 transitions. [2022-11-22 01:24:20,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-22 01:24:20,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:20,261 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:24:20,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:20,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:20,488 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)] === [2022-11-22 01:24:20,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:20,488 INFO L85 PathProgramCache]: Analyzing trace with hash -241374758, now seen corresponding path program 1 times [2022-11-22 01:24:20,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:24:20,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984845726] [2022-11-22 01:24:20,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:20,491 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 [2022-11-22 01:24:20,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:24:20,492 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:24:20,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:21,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:24:21,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-22 01:24:21,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:24:21,848 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:24:21,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984845726] [2022-11-22 01:24:21,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984845726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:21,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:21,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:24:21,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116307548] [2022-11-22 01:24:21,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:21,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:21,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:24:21,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:21,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:21,850 INFO L87 Difference]: Start difference. First operand 5646 states and 7692 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-22 01:24:22,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:22,864 INFO L93 Difference]: Finished difference Result 12439 states and 16934 transitions. [2022-11-22 01:24:22,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:24:22,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 165 [2022-11-22 01:24:22,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:22,906 INFO L225 Difference]: With dead ends: 12439 [2022-11-22 01:24:22,906 INFO L226 Difference]: Without dead ends: 6814 [2022-11-22 01:24:22,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:22,933 INFO L413 NwaCegarLoop]: 3303 mSDtfsCounter, 1629 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 5506 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:22,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 5506 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:24:22,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6814 states. [2022-11-22 01:24:23,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6814 to 6787. [2022-11-22 01:24:23,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6787 states, 4608 states have (on average 1.2282986111111112) internal successors, (5660), 4739 states have internal predecessors, (5660), 1752 states have call successors, (1752), 432 states have call predecessors, (1752), 424 states have return successors, (1760), 1716 states have call predecessors, (1760), 1748 states have call successors, (1760) [2022-11-22 01:24:23,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6787 states to 6787 states and 9172 transitions. [2022-11-22 01:24:23,446 INFO L78 Accepts]: Start accepts. Automaton has 6787 states and 9172 transitions. Word has length 165 [2022-11-22 01:24:23,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:23,447 INFO L495 AbstractCegarLoop]: Abstraction has 6787 states and 9172 transitions. [2022-11-22 01:24:23,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-22 01:24:23,448 INFO L276 IsEmpty]: Start isEmpty. Operand 6787 states and 9172 transitions. [2022-11-22 01:24:23,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-22 01:24:23,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:23,453 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:24:23,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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)] Ended with exit code 0 [2022-11-22 01:24:23,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:23,676 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)] === [2022-11-22 01:24:23,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:23,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1332695576, now seen corresponding path program 1 times [2022-11-22 01:24:23,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:24:23,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075604829] [2022-11-22 01:24:23,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:23,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:24:23,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:24:23,682 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:24:23,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:24,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:24:24,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-22 01:24:25,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:24:25,085 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:24:25,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075604829] [2022-11-22 01:24:25,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075604829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:25,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:25,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:24:25,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337194846] [2022-11-22 01:24:25,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:25,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:25,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:24:25,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:25,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:25,088 INFO L87 Difference]: Start difference. First operand 6787 states and 9172 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-22 01:24:26,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:26,060 INFO L93 Difference]: Finished difference Result 15249 states and 20637 transitions. [2022-11-22 01:24:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:24:26,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2022-11-22 01:24:26,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:26,114 INFO L225 Difference]: With dead ends: 15249 [2022-11-22 01:24:26,114 INFO L226 Difference]: Without dead ends: 8483 [2022-11-22 01:24:26,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:26,144 INFO L413 NwaCegarLoop]: 2686 mSDtfsCounter, 2026 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2026 SdHoareTripleChecker+Valid, 4886 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:26,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2026 Valid, 4886 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:24:26,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8483 states. [2022-11-22 01:24:26,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8483 to 8455. [2022-11-22 01:24:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8455 states, 5715 states have (on average 1.2290463692038496) internal successors, (7024), 5893 states have internal predecessors, (7024), 2196 states have call successors, (2196), 554 states have call predecessors, (2196), 541 states have return successors, (2213), 2130 states have call predecessors, (2213), 2192 states have call successors, (2213) [2022-11-22 01:24:26,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8455 states to 8455 states and 11433 transitions. [2022-11-22 01:24:26,713 INFO L78 Accepts]: Start accepts. Automaton has 8455 states and 11433 transitions. Word has length 167 [2022-11-22 01:24:26,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:26,715 INFO L495 AbstractCegarLoop]: Abstraction has 8455 states and 11433 transitions. [2022-11-22 01:24:26,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-22 01:24:26,716 INFO L276 IsEmpty]: Start isEmpty. Operand 8455 states and 11433 transitions. [2022-11-22 01:24:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-22 01:24:26,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:26,719 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] [2022-11-22 01:24:26,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:26,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:26,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:24:26,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:26,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1206652310, now seen corresponding path program 1 times [2022-11-22 01:24:26,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:24:26,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383947106] [2022-11-22 01:24:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:26,934 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 [2022-11-22 01:24:26,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:24:26,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:24:26,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:28,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:24:28,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:28,281 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-22 01:24:28,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:24:28,282 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:24:28,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383947106] [2022-11-22 01:24:28,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383947106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:28,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:28,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:24:28,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357319133] [2022-11-22 01:24:28,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:28,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:28,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:24:28,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:28,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:28,285 INFO L87 Difference]: Start difference. First operand 8455 states and 11433 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:24:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:29,584 INFO L93 Difference]: Finished difference Result 24668 states and 33392 transitions. [2022-11-22 01:24:29,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:24:29,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 172 [2022-11-22 01:24:29,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:29,697 INFO L225 Difference]: With dead ends: 24668 [2022-11-22 01:24:29,698 INFO L226 Difference]: Without dead ends: 16309 [2022-11-22 01:24:29,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:29,738 INFO L413 NwaCegarLoop]: 2871 mSDtfsCounter, 2121 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 5112 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:29,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2121 Valid, 5112 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:24:29,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16309 states. [2022-11-22 01:24:30,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16309 to 16305. [2022-11-22 01:24:30,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16305 states, 11031 states have (on average 1.228991025292358) internal successors, (13557), 11357 states have internal predecessors, (13557), 4220 states have call successors, (4220), 1072 states have call predecessors, (4220), 1051 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-22 01:24:30,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16305 states to 16305 states and 22035 transitions. [2022-11-22 01:24:30,911 INFO L78 Accepts]: Start accepts. Automaton has 16305 states and 22035 transitions. Word has length 172 [2022-11-22 01:24:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:30,911 INFO L495 AbstractCegarLoop]: Abstraction has 16305 states and 22035 transitions. [2022-11-22 01:24:30,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-22 01:24:30,912 INFO L276 IsEmpty]: Start isEmpty. Operand 16305 states and 22035 transitions. [2022-11-22 01:24:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-22 01:24:30,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:30,917 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] [2022-11-22 01:24:30,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:24:31,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:31,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:24:31,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:31,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1347200920, now seen corresponding path program 1 times [2022-11-22 01:24:31,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:24:31,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042209847] [2022-11-22 01:24:31,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:31,144 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 [2022-11-22 01:24:31,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:24:31,145 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:24:31,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:32,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:24:32,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-22 01:24:34,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:24:34,258 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:24:34,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042209847] [2022-11-22 01:24:34,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042209847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:34,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:34,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:24:34,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405384878] [2022-11-22 01:24:34,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:34,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:24:34,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:24:34,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:24:34,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:24:34,260 INFO L87 Difference]: Start difference. First operand 16305 states and 22035 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-22 01:24:35,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:35,807 INFO L93 Difference]: Finished difference Result 16311 states and 22040 transitions. [2022-11-22 01:24:35,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:24:35,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 172 [2022-11-22 01:24:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:35,884 INFO L225 Difference]: With dead ends: 16311 [2022-11-22 01:24:35,884 INFO L226 Difference]: Without dead ends: 16309 [2022-11-22 01:24:35,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:24:35,894 INFO L413 NwaCegarLoop]: 2265 mSDtfsCounter, 2190 mSDsluCounter, 4518 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 6783 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:35,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 6783 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:24:35,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16309 states. [2022-11-22 01:24:37,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16309 to 16309. [2022-11-22 01:24:37,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16309 states, 11034 states have (on average 1.2289287656334964) internal successors, (13560), 11360 states have internal predecessors, (13560), 4220 states have call successors, (4220), 1073 states have call predecessors, (4220), 1052 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-22 01:24:37,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16309 states to 16309 states and 22038 transitions. [2022-11-22 01:24:37,218 INFO L78 Accepts]: Start accepts. Automaton has 16309 states and 22038 transitions. Word has length 172 [2022-11-22 01:24:37,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:37,218 INFO L495 AbstractCegarLoop]: Abstraction has 16309 states and 22038 transitions. [2022-11-22 01:24:37,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-22 01:24:37,219 INFO L276 IsEmpty]: Start isEmpty. Operand 16309 states and 22038 transitions. [2022-11-22 01:24:37,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-22 01:24:37,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:37,223 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:24:37,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:37,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:37,447 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)] === [2022-11-22 01:24:37,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:37,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1529243110, now seen corresponding path program 1 times [2022-11-22 01:24:37,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:24:37,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322446805] [2022-11-22 01:24:37,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:37,449 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 [2022-11-22 01:24:37,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:24:37,451 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:24:37,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:38,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:24:38,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-22 01:24:40,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:24:41,656 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-22 01:24:41,656 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:24:41,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322446805] [2022-11-22 01:24:41,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322446805] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:24:41,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:24:41,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-22 01:24:41,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907558958] [2022-11-22 01:24:41,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:41,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:24:41,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:24:41,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:24:41,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:24:41,658 INFO L87 Difference]: Start difference. First operand 16309 states and 22038 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 01:24:43,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:43,094 INFO L93 Difference]: Finished difference Result 16315 states and 22043 transitions. [2022-11-22 01:24:43,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:24:43,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2022-11-22 01:24:43,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:43,169 INFO L225 Difference]: With dead ends: 16315 [2022-11-22 01:24:43,169 INFO L226 Difference]: Without dead ends: 16313 [2022-11-22 01:24:43,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:24:43,177 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2217 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:43,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2217 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:24:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16313 states. [2022-11-22 01:24:44,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16313 to 16313. [2022-11-22 01:24:44,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16313 states, 11037 states have (on average 1.2288665398206033) internal successors, (13563), 11363 states have internal predecessors, (13563), 4220 states have call successors, (4220), 1074 states have call predecessors, (4220), 1053 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-22 01:24:45,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16313 states to 16313 states and 22041 transitions. [2022-11-22 01:24:45,023 INFO L78 Accepts]: Start accepts. Automaton has 16313 states and 22041 transitions. Word has length 177 [2022-11-22 01:24:45,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:45,023 INFO L495 AbstractCegarLoop]: Abstraction has 16313 states and 22041 transitions. [2022-11-22 01:24:45,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 01:24:45,024 INFO L276 IsEmpty]: Start isEmpty. Operand 16313 states and 22041 transitions. [2022-11-22 01:24:45,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-22 01:24:45,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:45,028 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:24:45,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:45,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:45,243 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)] === [2022-11-22 01:24:45,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:45,244 INFO L85 PathProgramCache]: Analyzing trace with hash 445055128, now seen corresponding path program 1 times [2022-11-22 01:24:45,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:24:45,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866936897] [2022-11-22 01:24:45,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:45,245 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 [2022-11-22 01:24:45,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:24:45,247 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:24:45,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:46,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:24:46,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-11-22 01:24:48,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:24:49,501 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-11-22 01:24:49,501 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:24:49,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866936897] [2022-11-22 01:24:49,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866936897] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:24:49,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:24:49,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-22 01:24:49,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742940060] [2022-11-22 01:24:49,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:49,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:24:49,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:24:49,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:24:49,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:24:49,504 INFO L87 Difference]: Start difference. First operand 16313 states and 22041 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 01:24:50,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:50,808 INFO L93 Difference]: Finished difference Result 16319 states and 22046 transitions. [2022-11-22 01:24:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:24:50,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2022-11-22 01:24:50,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:50,875 INFO L225 Difference]: With dead ends: 16319 [2022-11-22 01:24:50,875 INFO L226 Difference]: Without dead ends: 16317 [2022-11-22 01:24:50,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:24:50,884 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:50,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:24:50,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16317 states. [2022-11-22 01:24:52,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16317 to 16317. [2022-11-22 01:24:52,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16317 states, 11040 states have (on average 1.228804347826087) internal successors, (13566), 11366 states have internal predecessors, (13566), 4220 states have call successors, (4220), 1075 states have call predecessors, (4220), 1054 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-22 01:24:52,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16317 states to 16317 states and 22044 transitions. [2022-11-22 01:24:52,468 INFO L78 Accepts]: Start accepts. Automaton has 16317 states and 22044 transitions. Word has length 182 [2022-11-22 01:24:52,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:52,469 INFO L495 AbstractCegarLoop]: Abstraction has 16317 states and 22044 transitions. [2022-11-22 01:24:52,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 01:24:52,469 INFO L276 IsEmpty]: Start isEmpty. Operand 16317 states and 22044 transitions. [2022-11-22 01:24:52,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-22 01:24:52,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:52,475 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:24:52,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:52,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:52,699 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)] === [2022-11-22 01:24:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:52,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1875432395, now seen corresponding path program 1 times [2022-11-22 01:24:52,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:24:52,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844995729] [2022-11-22 01:24:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:52,702 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 [2022-11-22 01:24:52,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:24:52,708 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:24:52,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:53,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:24:53,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:24:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2022-11-22 01:24:54,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:24:54,012 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:24:54,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844995729] [2022-11-22 01:24:54,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1844995729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:24:54,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:24:54,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:24:54,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873391544] [2022-11-22 01:24:54,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:24:54,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:24:54,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:24:54,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:24:54,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:54,015 INFO L87 Difference]: Start difference. First operand 16317 states and 22044 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 01:24:55,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:24:55,639 INFO L93 Difference]: Finished difference Result 40430 states and 54667 transitions. [2022-11-22 01:24:55,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:24:55,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2022-11-22 01:24:55,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:24:55,739 INFO L225 Difference]: With dead ends: 40430 [2022-11-22 01:24:55,739 INFO L226 Difference]: Without dead ends: 24209 [2022-11-22 01:24:55,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:24:55,788 INFO L413 NwaCegarLoop]: 4401 mSDtfsCounter, 2151 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 6644 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:24:55,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 6644 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:24:55,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24209 states. [2022-11-22 01:24:57,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24209 to 24175. [2022-11-22 01:24:57,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24175 states, 16364 states have (on average 1.228733805915424) internal successors, (20107), 16838 states have internal predecessors, (20107), 6244 states have call successors, (6244), 1593 states have call predecessors, (6244), 1564 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-22 01:24:57,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24175 states to 24175 states and 32654 transitions. [2022-11-22 01:24:57,998 INFO L78 Accepts]: Start accepts. Automaton has 24175 states and 32654 transitions. Word has length 199 [2022-11-22 01:24:57,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:24:57,999 INFO L495 AbstractCegarLoop]: Abstraction has 24175 states and 32654 transitions. [2022-11-22 01:24:57,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 01:24:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand 24175 states and 32654 transitions. [2022-11-22 01:24:58,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-22 01:24:58,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:24:58,004 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:24:58,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-11-22 01:24:58,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:24:58,219 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:24:58,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:24:58,220 INFO L85 PathProgramCache]: Analyzing trace with hash 241766554, now seen corresponding path program 1 times [2022-11-22 01:24:58,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:24:58,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016014290] [2022-11-22 01:24:58,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:24:58,222 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 [2022-11-22 01:24:58,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:24:58,223 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:24:58,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-22 01:24:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:24:59,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:24:59,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:01,350 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-11-22 01:25:01,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:02,276 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-11-22 01:25:02,276 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:25:02,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016014290] [2022-11-22 01:25:02,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016014290] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:02,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:25:02,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-22 01:25:02,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670417156] [2022-11-22 01:25:02,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:02,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:25:02,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:25:02,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:25:02,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:02,278 INFO L87 Difference]: Start difference. First operand 24175 states and 32654 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:25:04,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:04,563 INFO L93 Difference]: Finished difference Result 24181 states and 32659 transitions. [2022-11-22 01:25:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:25:04,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 187 [2022-11-22 01:25:04,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:04,651 INFO L225 Difference]: With dead ends: 24181 [2022-11-22 01:25:04,651 INFO L226 Difference]: Without dead ends: 24179 [2022-11-22 01:25:04,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:25:04,662 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:04,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:25:04,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24179 states. [2022-11-22 01:25:06,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24179 to 24179. [2022-11-22 01:25:06,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24179 states, 16367 states have (on average 1.228691880002444) internal successors, (20110), 16841 states have internal predecessors, (20110), 6244 states have call successors, (6244), 1594 states have call predecessors, (6244), 1565 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-22 01:25:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24179 states to 24179 states and 32657 transitions. [2022-11-22 01:25:06,811 INFO L78 Accepts]: Start accepts. Automaton has 24179 states and 32657 transitions. Word has length 187 [2022-11-22 01:25:06,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:06,811 INFO L495 AbstractCegarLoop]: Abstraction has 24179 states and 32657 transitions. [2022-11-22 01:25:06,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 01:25:06,812 INFO L276 IsEmpty]: Start isEmpty. Operand 24179 states and 32657 transitions. [2022-11-22 01:25:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-22 01:25:06,817 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:06,817 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:06,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:07,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:25:07,031 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:25:07,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:07,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1999124072, now seen corresponding path program 1 times [2022-11-22 01:25:07,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:25:07,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646101430] [2022-11-22 01:25:07,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:07,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:25:07,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:25:07,034 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:25:07,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-22 01:25:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:08,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:25:08,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:10,125 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-11-22 01:25:10,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:11,058 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-11-22 01:25:11,058 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:25:11,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646101430] [2022-11-22 01:25:11,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646101430] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:11,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:25:11,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-22 01:25:11,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302570735] [2022-11-22 01:25:11,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:11,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:25:11,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:25:11,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:25:11,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:11,060 INFO L87 Difference]: Start difference. First operand 24179 states and 32657 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-22 01:25:13,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:13,100 INFO L93 Difference]: Finished difference Result 24185 states and 32662 transitions. [2022-11-22 01:25:13,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:25:13,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2022-11-22 01:25:13,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:13,208 INFO L225 Difference]: With dead ends: 24185 [2022-11-22 01:25:13,208 INFO L226 Difference]: Without dead ends: 24183 [2022-11-22 01:25:13,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:25:13,220 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:13,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:25:13,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2022-11-22 01:25:15,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 24183. [2022-11-22 01:25:15,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 16370 states have (on average 1.2286499694563224) internal successors, (20113), 16844 states have internal predecessors, (20113), 6244 states have call successors, (6244), 1595 states have call predecessors, (6244), 1566 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-22 01:25:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 32660 transitions. [2022-11-22 01:25:15,442 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 32660 transitions. Word has length 192 [2022-11-22 01:25:15,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:15,443 INFO L495 AbstractCegarLoop]: Abstraction has 24183 states and 32660 transitions. [2022-11-22 01:25:15,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-22 01:25:15,443 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 32660 transitions. [2022-11-22 01:25:15,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-22 01:25:15,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:15,447 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:15,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:15,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:25:15,648 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:25:15,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:15,648 INFO L85 PathProgramCache]: Analyzing trace with hash 275257114, now seen corresponding path program 1 times [2022-11-22 01:25:15,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:25:15,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855402750] [2022-11-22 01:25:15,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:15,649 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 [2022-11-22 01:25:15,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:25:15,650 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:25:15,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-22 01:25:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:16,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 1179 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:25:16,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:18,788 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-11-22 01:25:18,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:19,702 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-11-22 01:25:19,702 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:25:19,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855402750] [2022-11-22 01:25:19,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855402750] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:19,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:25:19,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-22 01:25:19,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457047025] [2022-11-22 01:25:19,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:19,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:25:19,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:25:19,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:25:19,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:19,704 INFO L87 Difference]: Start difference. First operand 24183 states and 32660 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 01:25:21,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:21,655 INFO L93 Difference]: Finished difference Result 24189 states and 32665 transitions. [2022-11-22 01:25:21,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:25:21,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 197 [2022-11-22 01:25:21,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:21,722 INFO L225 Difference]: With dead ends: 24189 [2022-11-22 01:25:21,722 INFO L226 Difference]: Without dead ends: 24187 [2022-11-22 01:25:21,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:25:21,735 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:21,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:25:21,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24187 states. [2022-11-22 01:25:23,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24187 to 24187. [2022-11-22 01:25:23,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24187 states, 16373 states have (on average 1.228608074268613) internal successors, (20116), 16847 states have internal predecessors, (20116), 6244 states have call successors, (6244), 1596 states have call predecessors, (6244), 1567 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-22 01:25:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24187 states to 24187 states and 32663 transitions. [2022-11-22 01:25:24,027 INFO L78 Accepts]: Start accepts. Automaton has 24187 states and 32663 transitions. Word has length 197 [2022-11-22 01:25:24,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:24,028 INFO L495 AbstractCegarLoop]: Abstraction has 24187 states and 32663 transitions. [2022-11-22 01:25:24,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-22 01:25:24,028 INFO L276 IsEmpty]: Start isEmpty. Operand 24187 states and 32663 transitions. [2022-11-22 01:25:24,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-22 01:25:24,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:24,032 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 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] [2022-11-22 01:25:24,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:24,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:25:24,256 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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)] === [2022-11-22 01:25:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:24,256 INFO L85 PathProgramCache]: Analyzing trace with hash 99811992, now seen corresponding path program 1 times [2022-11-22 01:25:24,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:25:24,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973067289] [2022-11-22 01:25:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:24,257 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 [2022-11-22 01:25:24,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:25:24,258 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:25:24,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (14)] Waiting until timeout for monitored process [2022-11-22 01:25:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:25,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:25:25,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:27,568 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-11-22 01:25:27,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:28,545 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-11-22 01:25:28,546 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:25:28,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973067289] [2022-11-22 01:25:28,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973067289] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:28,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:25:28,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-22 01:25:28,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268252651] [2022-11-22 01:25:28,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:28,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:25:28,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:25:28,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:25:28,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:28,549 INFO L87 Difference]: Start difference. First operand 24187 states and 32663 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 01:25:31,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:31,570 INFO L93 Difference]: Finished difference Result 28570 states and 38200 transitions. [2022-11-22 01:25:31,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:25:31,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 202 [2022-11-22 01:25:31,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:31,641 INFO L225 Difference]: With dead ends: 28570 [2022-11-22 01:25:31,641 INFO L226 Difference]: Without dead ends: 28568 [2022-11-22 01:25:31,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:25:31,651 INFO L413 NwaCegarLoop]: 2498 mSDtfsCounter, 1743 mSDsluCounter, 5890 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 8388 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:31,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1748 Valid, 8388 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:25:31,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28568 states. [2022-11-22 01:25:34,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28568 to 28568. [2022-11-22 01:25:34,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28568 states, 19088 states have (on average 1.2199811399832354) internal successors, (23287), 19595 states have internal predecessors, (23287), 7426 states have call successors, (7426), 2080 states have call predecessors, (7426), 2051 states have return successors, (7485), 7294 states have call predecessors, (7485), 7422 states have call successors, (7485) [2022-11-22 01:25:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28568 states to 28568 states and 38198 transitions. [2022-11-22 01:25:34,103 INFO L78 Accepts]: Start accepts. Automaton has 28568 states and 38198 transitions. Word has length 202 [2022-11-22 01:25:34,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:34,104 INFO L495 AbstractCegarLoop]: Abstraction has 28568 states and 38198 transitions. [2022-11-22 01:25:34,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-22 01:25:34,104 INFO L276 IsEmpty]: Start isEmpty. Operand 28568 states and 38198 transitions. [2022-11-22 01:25:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-22 01:25:34,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:34,110 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:34,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (14)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:34,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:25:34,327 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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)] === [2022-11-22 01:25:34,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:34,328 INFO L85 PathProgramCache]: Analyzing trace with hash -794645094, now seen corresponding path program 1 times [2022-11-22 01:25:34,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:25:34,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48439503] [2022-11-22 01:25:34,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:34,329 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 [2022-11-22 01:25:34,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:25:34,331 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:25:34,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (15)] Waiting until timeout for monitored process [2022-11-22 01:25:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:35,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:25:35,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-22 01:25:37,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:38,686 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-11-22 01:25:38,687 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:25:38,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48439503] [2022-11-22 01:25:38,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [48439503] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:38,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:25:38,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-22 01:25:38,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687856605] [2022-11-22 01:25:38,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:38,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:25:38,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:25:38,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:25:38,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:38,689 INFO L87 Difference]: Start difference. First operand 28568 states and 38198 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:25:41,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:41,391 INFO L93 Difference]: Finished difference Result 28574 states and 38203 transitions. [2022-11-22 01:25:41,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:25:41,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 207 [2022-11-22 01:25:41,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:41,465 INFO L225 Difference]: With dead ends: 28574 [2022-11-22 01:25:41,465 INFO L226 Difference]: Without dead ends: 28572 [2022-11-22 01:25:41,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:25:41,476 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:41,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2211 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:25:41,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28572 states. [2022-11-22 01:25:44,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28572 to 28572. [2022-11-22 01:25:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28572 states, 19091 states have (on average 1.219946571682992) internal successors, (23290), 19598 states have internal predecessors, (23290), 7426 states have call successors, (7426), 2081 states have call predecessors, (7426), 2052 states have return successors, (7485), 7294 states have call predecessors, (7485), 7422 states have call successors, (7485) [2022-11-22 01:25:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28572 states to 28572 states and 38201 transitions. [2022-11-22 01:25:44,269 INFO L78 Accepts]: Start accepts. Automaton has 28572 states and 38201 transitions. Word has length 207 [2022-11-22 01:25:44,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:44,270 INFO L495 AbstractCegarLoop]: Abstraction has 28572 states and 38201 transitions. [2022-11-22 01:25:44,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-22 01:25:44,270 INFO L276 IsEmpty]: Start isEmpty. Operand 28572 states and 38201 transitions. [2022-11-22 01:25:44,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-22 01:25:44,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:44,276 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 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, 1, 1, 1, 1] [2022-11-22 01:25:44,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (15)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:44,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:25:44,491 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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)] === [2022-11-22 01:25:44,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:44,492 INFO L85 PathProgramCache]: Analyzing trace with hash 730639256, now seen corresponding path program 1 times [2022-11-22 01:25:44,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:25:44,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545126018] [2022-11-22 01:25:44,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:44,493 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 [2022-11-22 01:25:44,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:25:44,494 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:25:44,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (16)] Waiting until timeout for monitored process [2022-11-22 01:25:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:45,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:25:45,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-11-22 01:25:47,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:25:49,020 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2022-11-22 01:25:49,022 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:25:49,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545126018] [2022-11-22 01:25:49,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545126018] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:25:49,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:25:49,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-22 01:25:49,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182845544] [2022-11-22 01:25:49,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:49,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:25:49,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:25:49,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:25:49,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:25:49,025 INFO L87 Difference]: Start difference. First operand 28572 states and 38201 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-22 01:25:51,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:51,918 INFO L93 Difference]: Finished difference Result 28578 states and 38206 transitions. [2022-11-22 01:25:51,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:25:51,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 212 [2022-11-22 01:25:51,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:52,008 INFO L225 Difference]: With dead ends: 28578 [2022-11-22 01:25:52,008 INFO L226 Difference]: Without dead ends: 28576 [2022-11-22 01:25:52,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:25:52,028 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:52,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:25:52,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28576 states. [2022-11-22 01:25:55,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28576 to 28576. [2022-11-22 01:25:55,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28576 states, 19094 states have (on average 1.2199120142453126) internal successors, (23293), 19601 states have internal predecessors, (23293), 7426 states have call successors, (7426), 2082 states have call predecessors, (7426), 2053 states have return successors, (7485), 7294 states have call predecessors, (7485), 7422 states have call successors, (7485) [2022-11-22 01:25:55,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28576 states to 28576 states and 38204 transitions. [2022-11-22 01:25:55,295 INFO L78 Accepts]: Start accepts. Automaton has 28576 states and 38204 transitions. Word has length 212 [2022-11-22 01:25:55,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:55,295 INFO L495 AbstractCegarLoop]: Abstraction has 28576 states and 38204 transitions. [2022-11-22 01:25:55,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-22 01:25:55,296 INFO L276 IsEmpty]: Start isEmpty. Operand 28576 states and 38204 transitions. [2022-11-22 01:25:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-22 01:25:55,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:55,302 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 9, 9, 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, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:55,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (16)] Forceful destruction successful, exit code 0 [2022-11-22 01:25:55,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:25:55,529 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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)] === [2022-11-22 01:25:55,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:55,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1511730150, now seen corresponding path program 1 times [2022-11-22 01:25:55,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:25:55,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769407647] [2022-11-22 01:25:55,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:55,531 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 [2022-11-22 01:25:55,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:25:55,532 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:25:55,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (17)] Waiting until timeout for monitored process [2022-11-22 01:25:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:56,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:25:56,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:25:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-11-22 01:25:59,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-11-22 01:26:00,175 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:26:00,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769407647] [2022-11-22 01:26:00,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769407647] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:26:00,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:26:00,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-22 01:26:00,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237944245] [2022-11-22 01:26:00,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:00,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:26:00,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:26:00,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:26:00,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:26:00,178 INFO L87 Difference]: Start difference. First operand 28576 states and 38204 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 01:26:03,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:03,345 INFO L93 Difference]: Finished difference Result 28582 states and 38209 transitions. [2022-11-22 01:26:03,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:26:03,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 217 [2022-11-22 01:26:03,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:03,428 INFO L225 Difference]: With dead ends: 28582 [2022-11-22 01:26:03,429 INFO L226 Difference]: Without dead ends: 28580 [2022-11-22 01:26:03,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:26:03,442 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:03,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:26:03,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28580 states. [2022-11-22 01:26:06,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28580 to 28580. [2022-11-22 01:26:06,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28580 states, 19097 states have (on average 1.2198774676650783) internal successors, (23296), 19604 states have internal predecessors, (23296), 7426 states have call successors, (7426), 2083 states have call predecessors, (7426), 2054 states have return successors, (7485), 7294 states have call predecessors, (7485), 7422 states have call successors, (7485) [2022-11-22 01:26:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28580 states to 28580 states and 38207 transitions. [2022-11-22 01:26:06,681 INFO L78 Accepts]: Start accepts. Automaton has 28580 states and 38207 transitions. Word has length 217 [2022-11-22 01:26:06,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:06,681 INFO L495 AbstractCegarLoop]: Abstraction has 28580 states and 38207 transitions. [2022-11-22 01:26:06,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-22 01:26:06,681 INFO L276 IsEmpty]: Start isEmpty. Operand 28580 states and 38207 transitions. [2022-11-22 01:26:06,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-22 01:26:06,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:06,687 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:26:06,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (17)] Forceful destruction successful, exit code 0 [2022-11-22 01:26:06,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:26:06,904 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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)] === [2022-11-22 01:26:06,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash -677111769, now seen corresponding path program 1 times [2022-11-22 01:26:06,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:26:06,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147446579] [2022-11-22 01:26:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:06,906 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 [2022-11-22 01:26:06,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:26:06,906 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:26:06,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (18)] Waiting until timeout for monitored process [2022-11-22 01:26:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:08,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:26:08,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-22 01:26:08,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:26:08,613 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:26:08,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147446579] [2022-11-22 01:26:08,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147446579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:08,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:08,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:26:08,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970820370] [2022-11-22 01:26:08,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:08,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:26:08,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:26:08,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:26:08,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:26:08,615 INFO L87 Difference]: Start difference. First operand 28580 states and 38207 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-22 01:26:13,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:13,629 INFO L93 Difference]: Finished difference Result 67265 states and 89979 transitions. [2022-11-22 01:26:13,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:26:13,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 229 [2022-11-22 01:26:13,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:13,733 INFO L225 Difference]: With dead ends: 67265 [2022-11-22 01:26:13,733 INFO L226 Difference]: Without dead ends: 38781 [2022-11-22 01:26:13,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:26:13,820 INFO L413 NwaCegarLoop]: 3835 mSDtfsCounter, 1613 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1613 SdHoareTripleChecker+Valid, 6039 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:13,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1613 Valid, 6039 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:26:13,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38781 states. [2022-11-22 01:26:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38781 to 38710. [2022-11-22 01:26:18,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38710 states, 25948 states have (on average 1.2197857252967474) internal successors, (31651), 26621 states have internal predecessors, (31651), 9964 states have call successors, (9964), 2831 states have call predecessors, (9964), 2795 states have return successors, (10026), 9803 states have call predecessors, (10026), 9960 states have call successors, (10026) [2022-11-22 01:26:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38710 states to 38710 states and 51641 transitions. [2022-11-22 01:26:18,936 INFO L78 Accepts]: Start accepts. Automaton has 38710 states and 51641 transitions. Word has length 229 [2022-11-22 01:26:18,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:18,936 INFO L495 AbstractCegarLoop]: Abstraction has 38710 states and 51641 transitions. [2022-11-22 01:26:18,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-22 01:26:18,937 INFO L276 IsEmpty]: Start isEmpty. Operand 38710 states and 51641 transitions. [2022-11-22 01:26:18,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-22 01:26:18,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:18,940 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:26:18,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (18)] Ended with exit code 0 [2022-11-22 01:26:19,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:26:19,141 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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)] === [2022-11-22 01:26:19,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:19,141 INFO L85 PathProgramCache]: Analyzing trace with hash 39371928, now seen corresponding path program 1 times [2022-11-22 01:26:19,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:26:19,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773038645] [2022-11-22 01:26:19,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:19,142 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 [2022-11-22 01:26:19,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:26:19,143 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:26:19,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836ec76f-a96b-409d-8052-1c38fc6c9419/bin/utaipan-g80aRyZoba/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 (19)] Waiting until timeout for monitored process [2022-11-22 01:26:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:20,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:26:20,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:26:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-11-22 01:26:22,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:26:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-11-22 01:26:23,993 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:26:23,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773038645] [2022-11-22 01:26:23,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773038645] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:26:23,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:26:23,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-22 01:26:23,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357123577] [2022-11-22 01:26:23,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:23,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:26:23,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:26:23,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:26:23,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:26:23,996 INFO L87 Difference]: Start difference. First operand 38710 states and 51641 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-22 01:26:28,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:28,530 INFO L93 Difference]: Finished difference Result 38716 states and 51646 transitions. [2022-11-22 01:26:28,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:26:28,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 222 [2022-11-22 01:26:28,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:28,622 INFO L225 Difference]: With dead ends: 38716 [2022-11-22 01:26:28,622 INFO L226 Difference]: Without dead ends: 38712 [2022-11-22 01:26:28,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 437 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:26:28,634 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:28,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2208 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:26:28,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38712 states.