./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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_68318b12-b35e-4470-b3e8-fd26b7797612/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 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- 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 01:55:58,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:55:58,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:55:58,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:55:58,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:55:58,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:55:58,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:55:58,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:55:58,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:55:58,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:55:58,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:55:58,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:55:58,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:55:58,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:55:58,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:55:58,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:55:58,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:55:58,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:55:58,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:55:58,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:55:58,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:55:58,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:55:58,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:55:58,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:55:58,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:55:58,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:55:58,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:55:58,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:55:58,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:55:58,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:55:58,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:55:58,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:55:58,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:55:58,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:55:58,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:55:58,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:55:58,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:55:58,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:55:58,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:55:58,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:55:58,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:55:58,883 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:55:58,935 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:55:58,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:55:58,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:55:58,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:55:58,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:55:58,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:55:58,939 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:55:58,939 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:55:58,939 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:55:58,940 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:55:58,941 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:55:58,941 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:55:58,942 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:55:58,942 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:55:58,942 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:55:58,943 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:55:58,943 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:55:58,943 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:55:58,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:55:58,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:55:58,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:55:58,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:55:58,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:55:58,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:55:58,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:55:58,946 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:55:58,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:55:58,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:55:58,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:55:58,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:55:58,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:55:58,949 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:55:58,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:55:58,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:55:58,950 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:55:58,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:55:58,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:55:58,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:55:58,951 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_68318b12-b35e-4470-b3e8-fd26b7797612/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2022-11-22 01:55:59,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:55:59,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:55:59,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:55:59,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:55:59,370 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:55:59,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-22 01:56:02,511 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:56:03,310 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:56:03,310 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-22 01:56:03,375 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/data/12013ea61/043cbeaefb4648cc8e8a6560e5e6748e/FLAGeab794ee4 [2022-11-22 01:56:03,394 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/data/12013ea61/043cbeaefb4648cc8e8a6560e5e6748e [2022-11-22 01:56:03,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:56:03,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:56:03,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:56:03,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:56:03,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:56:03,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:03" (1/1) ... [2022-11-22 01:56:03,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785bf511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03, skipping insertion in model container [2022-11-22 01:56:03,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:03" (1/1) ... [2022-11-22 01:56:03,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:56:03,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:56:05,458 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 01:56:05,469 INFO L158 Benchmark]: Toolchain (without parser) took 2068.75ms. Allocated memory is still 186.6MB. Free memory was 127.3MB in the beginning and 120.0MB in the end (delta: 7.3MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2022-11-22 01:56:05,469 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:56:05,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2065.92ms. Allocated memory is still 186.6MB. Free memory was 127.3MB in the beginning and 120.0MB in the end (delta: 7.3MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2022-11-22 01:56:05,472 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2065.92ms. Allocated memory is still 186.6MB. Free memory was 127.3MB in the beginning and 120.0MB in the end (delta: 7.3MB). Peak memory consumption was 53.0MB. 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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_68318b12-b35e-4470-b3e8-fd26b7797612/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 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- 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 01:56:08,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:56:08,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:56:08,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:56:08,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:56:08,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:56:08,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:56:08,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:56:08,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:56:08,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:56:08,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:56:08,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:56:08,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:56:08,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:56:08,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:56:08,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:56:08,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:56:08,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:56:08,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:56:08,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:56:08,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:56:08,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:56:08,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:56:08,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:56:08,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:56:08,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:56:08,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:56:08,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:56:08,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:56:08,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:56:08,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:56:08,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:56:08,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:56:08,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:56:08,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:56:08,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:56:08,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:56:08,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:56:08,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:56:08,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:56:08,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:56:08,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 01:56:08,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:56:08,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:56:08,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:56:08,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:56:08,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:56:08,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:56:08,434 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:56:08,434 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:56:08,435 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:56:08,435 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:56:08,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:56:08,437 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:56:08,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:56:08,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:56:08,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:56:08,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:56:08,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:56:08,440 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:56:08,441 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:56:08,441 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:56:08,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:56:08,442 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:56:08,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:56:08,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:56:08,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:56:08,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:56:08,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:56:08,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:56:08,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:56:08,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:56:08,445 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:56:08,446 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:56:08,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:56:08,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:56:08,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:56:08,448 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_68318b12-b35e-4470-b3e8-fd26b7797612/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2022-11-22 01:56:08,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:56:08,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:56:08,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:56:08,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:56:08,972 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:56:08,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-22 01:56:12,522 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:56:13,120 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:56:13,121 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-22 01:56:13,165 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/data/2b8d2cdea/5d50bf554b4645129edfaaddcafaec88/FLAGc1c88d052 [2022-11-22 01:56:13,197 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/data/2b8d2cdea/5d50bf554b4645129edfaaddcafaec88 [2022-11-22 01:56:13,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:56:13,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:56:13,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:56:13,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:56:13,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:56:13,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:13" (1/1) ... [2022-11-22 01:56:13,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f39e9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:13, skipping insertion in model container [2022-11-22 01:56:13,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:13" (1/1) ... [2022-11-22 01:56:13,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:56:13,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:56:16,323 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-11-22 01:56:16,328 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-11-22 01:56:16,328 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-11-22 01:56:16,329 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-11-22 01:56:16,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:56:16,458 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-22 01:56:16,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:56:17,103 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-11-22 01:56:17,104 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-11-22 01:56:17,105 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-11-22 01:56:17,105 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-11-22 01:56:17,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:56:17,176 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:56:17,576 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-11-22 01:56:17,577 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-11-22 01:56:17,577 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-11-22 01:56:17,578 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_68318b12-b35e-4470-b3e8-fd26b7797612/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-11-22 01:56:17,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:56:17,892 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:56:17,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17 WrapperNode [2022-11-22 01:56:17,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:56:17,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:56:17,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:56:17,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:56:17,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,267 INFO L138 Inliner]: procedures = 372, calls = 1567, calls flagged for inlining = 197, calls inlined = 186, statements flattened = 3950 [2022-11-22 01:56:18,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:56:18,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:56:18,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:56:18,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:56:18,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,586 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:56:18,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:56:18,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:56:18,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:56:18,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (1/1) ... [2022-11-22 01:56:18,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:56:18,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:56:18,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:56:18,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:56:18,797 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-22 01:56:18,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-22 01:56:18,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-22 01:56:18,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-22 01:56:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-22 01:56:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-22 01:56:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:56:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:56:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-22 01:56:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:56:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:56:18,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:56:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:56:18,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:56:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-22 01:56:18,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-22 01:56:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:56:18,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:56:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:56:18,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:56:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:56:18,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:56:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2022-11-22 01:56:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2022-11-22 01:56:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:56:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:56:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:56:18,802 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:56:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-22 01:56:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-22 01:56:18,803 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:56:18,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:56:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:56:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:56:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-22 01:56:18,804 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-22 01:56:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-22 01:56:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-22 01:56:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-22 01:56:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-22 01:56:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-22 01:56:18,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-22 01:56:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:56:18,806 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:56:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:56:18,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:56:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 01:56:18,807 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 01:56:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-22 01:56:18,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-22 01:56:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-22 01:56:18,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-22 01:56:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-22 01:56:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-22 01:56:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-22 01:56:18,808 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-22 01:56:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:56:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:56:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:56:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-22 01:56:18,809 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-22 01:56:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:56:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:56:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:56:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-22 01:56:18,810 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-22 01:56:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-22 01:56:18,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-22 01:56:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:56:18,811 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:56:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:56:18,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:56:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:56:18,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-22 01:56:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-22 01:56:18,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-22 01:56:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:56:18,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:56:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-22 01:56:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-22 01:56:18,813 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-22 01:56:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-22 01:56:18,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-22 01:56:18,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:56:18,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:56:18,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:56:18,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-22 01:56:18,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:56:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-22 01:56:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-22 01:56:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-22 01:56:18,815 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-22 01:56:18,815 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:56:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:56:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-11-22 01:56:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-11-22 01:56:18,816 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:56:18,816 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:56:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:56:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:56:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:56:18,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:56:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-22 01:56:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-22 01:56:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:56:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:56:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-22 01:56:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-22 01:56:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-22 01:56:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-22 01:56:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-22 01:56:18,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-22 01:56:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:56:18,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:56:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 01:56:18,820 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 01:56:18,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:56:18,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-22 01:56:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:56:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:56:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:56:18,821 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:56:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:56:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:56:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:56:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:56:18,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:56:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:56:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-22 01:56:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-22 01:56:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:56:18,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:56:18,823 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:56:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:56:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:56:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:56:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 01:56:18,824 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 01:56:18,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:56:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-22 01:56:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:56:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:56:18,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:56:18,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:56:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-22 01:56:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-22 01:56:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-22 01:56:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-22 01:56:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-22 01:56:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-22 01:56:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:56:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:56:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-22 01:56:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-22 01:56:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-11-22 01:56:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-11-22 01:56:18,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-11-22 01:56:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-11-22 01:56:18,828 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-22 01:56:18,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-22 01:56:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:56:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-22 01:56:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-22 01:56:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:56:18,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:56:18,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:56:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:56:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-22 01:56:18,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-22 01:56:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:56:18,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:56:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:56:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:56:18,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:56:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:56:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-22 01:56:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-22 01:56:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-22 01:56:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-22 01:56:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-22 01:56:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-22 01:56:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:56:18,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:56:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-22 01:56:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-22 01:56:18,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-22 01:56:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-22 01:56:18,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-22 01:56:18,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:56:18,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:56:18,834 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-22 01:56:18,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-22 01:56:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-22 01:56:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-22 01:56:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:56:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:56:18,835 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:56:18,835 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:56:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:56:18,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:56:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-22 01:56:18,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-22 01:56:18,836 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-22 01:56:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-22 01:56:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-22 01:56:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-22 01:56:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-22 01:56:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-22 01:56:18,837 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:56:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:56:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 01:56:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-22 01:56:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-22 01:56:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-22 01:56:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:56:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:56:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-22 01:56:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-22 01:56:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-22 01:56:18,839 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-22 01:56:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:56:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:56:19,882 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:56:19,886 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:56:25,916 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:57:03,368 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:57:03,449 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:57:03,469 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:57:03,469 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:57:03,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:57:03 BoogieIcfgContainer [2022-11-22 01:57:03,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:57:03,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:57:03,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:57:03,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:57:03,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:56:13" (1/3) ... [2022-11-22 01:57:03,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110a356b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:57:03, skipping insertion in model container [2022-11-22 01:57:03,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:17" (2/3) ... [2022-11-22 01:57:03,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110a356b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:57:03, skipping insertion in model container [2022-11-22 01:57:03,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:57:03" (3/3) ... [2022-11-22 01:57:03,499 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-22 01:57:03,523 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:57:03,523 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:57:03,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:57:03,617 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;@66809118, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:57:03,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:57:03,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 1648 states, 1110 states have (on average 1.2513513513513514) internal successors, (1389), 1145 states have internal predecessors, (1389), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) [2022-11-22 01:57:03,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:57:03,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:03,649 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 01:57:03,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:03,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:03,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1311610959, now seen corresponding path program 1 times [2022-11-22 01:57:03,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:57:03,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684659285] [2022-11-22 01:57:03,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:03,680 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 01:57:03,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:57:03,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:03,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:04,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:57:04,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:05,225 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 01:57:05,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:57:05,227 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:57:05,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684659285] [2022-11-22 01:57:05,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684659285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:05,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:05,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:57:05,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209452025] [2022-11-22 01:57:05,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:05,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:57:05,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:57:05,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:57:05,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:05,275 INFO L87 Difference]: Start difference. First operand has 1648 states, 1110 states have (on average 1.2513513513513514) internal successors, (1389), 1145 states have internal predecessors, (1389), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) 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 01:57:06,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:06,195 INFO L93 Difference]: Finished difference Result 4804 states and 6757 transitions. [2022-11-22 01:57:06,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:57:06,199 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 01:57:06,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:06,257 INFO L225 Difference]: With dead ends: 4804 [2022-11-22 01:57:06,257 INFO L226 Difference]: Without dead ends: 3167 [2022-11-22 01:57:06,282 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 01:57:06,292 INFO L413 NwaCegarLoop]: 2662 mSDtfsCounter, 2134 mSDsluCounter, 2193 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 4855 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:06,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2134 Valid, 4855 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:57:06,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2022-11-22 01:57:06,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3163. [2022-11-22 01:57:06,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3163 states, 2138 states have (on average 1.244621141253508) internal successors, (2661), 2205 states have internal predecessors, (2661), 838 states have call successors, (838), 185 states have call predecessors, (838), 184 states have return successors, (834), 828 states have call predecessors, (834), 834 states have call successors, (834) [2022-11-22 01:57:06,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 4333 transitions. [2022-11-22 01:57:06,680 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 4333 transitions. Word has length 116 [2022-11-22 01:57:06,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:06,681 INFO L495 AbstractCegarLoop]: Abstraction has 3163 states and 4333 transitions. [2022-11-22 01:57:06,682 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 01:57:06,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 4333 transitions. [2022-11-22 01:57:06,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-22 01:57:06,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:06,689 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] [2022-11-22 01:57:06,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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)] Ended with exit code 0 [2022-11-22 01:57:06,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:06,903 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:06,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash -923209008, now seen corresponding path program 1 times [2022-11-22 01:57:06,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:57:06,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451416297] [2022-11-22 01:57:06,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:06,907 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 01:57:06,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:57:06,909 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:06,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:08,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:57:08,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:08,566 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 01:57:08,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:57:08,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:57:08,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451416297] [2022-11-22 01:57:08,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451416297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:08,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:08,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:57:08,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829985147] [2022-11-22 01:57:08,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:08,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:57:08,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:57:08,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:57:08,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:08,571 INFO L87 Difference]: Start difference. First operand 3163 states and 4333 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 01:57:09,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:09,629 INFO L93 Difference]: Finished difference Result 9145 states and 12523 transitions. [2022-11-22 01:57:09,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:57:09,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 117 [2022-11-22 01:57:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:09,692 INFO L225 Difference]: With dead ends: 9145 [2022-11-22 01:57:09,693 INFO L226 Difference]: Without dead ends: 6003 [2022-11-22 01:57:09,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 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 01:57:09,713 INFO L413 NwaCegarLoop]: 2634 mSDtfsCounter, 1994 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:09,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 4795 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:57:09,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2022-11-22 01:57:10,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 5982. [2022-11-22 01:57:10,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5982 states, 4019 states have (on average 1.2430952973376461) internal successors, (4996), 4149 states have internal predecessors, (4996), 1597 states have call successors, (1597), 366 states have call predecessors, (1597), 363 states have return successors, (1595), 1572 states have call predecessors, (1595), 1593 states have call successors, (1595) [2022-11-22 01:57:10,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5982 states to 5982 states and 8188 transitions. [2022-11-22 01:57:10,237 INFO L78 Accepts]: Start accepts. Automaton has 5982 states and 8188 transitions. Word has length 117 [2022-11-22 01:57:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:10,239 INFO L495 AbstractCegarLoop]: Abstraction has 5982 states and 8188 transitions. [2022-11-22 01:57:10,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 01:57:10,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5982 states and 8188 transitions. [2022-11-22 01:57:10,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-22 01:57:10,245 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:10,246 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:10,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:10,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:10,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:10,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:10,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1781401119, now seen corresponding path program 1 times [2022-11-22 01:57:10,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:57:10,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994776009] [2022-11-22 01:57:10,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:10,478 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 01:57:10,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:57:10,482 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:10,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:11,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:57:11,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:12,043 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 01:57:12,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:57:12,044 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:57:12,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994776009] [2022-11-22 01:57:12,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994776009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:12,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:12,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:57:12,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003648477] [2022-11-22 01:57:12,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:12,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:57:12,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:57:12,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:57:12,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:12,048 INFO L87 Difference]: Start difference. First operand 5982 states and 8188 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-22 01:57:13,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:13,154 INFO L93 Difference]: Finished difference Result 11704 states and 16048 transitions. [2022-11-22 01:57:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:57:13,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 128 [2022-11-22 01:57:13,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:13,213 INFO L225 Difference]: With dead ends: 11704 [2022-11-22 01:57:13,214 INFO L226 Difference]: Without dead ends: 5743 [2022-11-22 01:57:13,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:13,252 INFO L413 NwaCegarLoop]: 3050 mSDtfsCounter, 1586 mSDsluCounter, 2164 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 5214 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:13,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 5214 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:57:13,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5743 states. [2022-11-22 01:57:13,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5743 to 5724. [2022-11-22 01:57:13,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5724 states, 3877 states have (on average 1.2470982718596852) internal successors, (4835), 4003 states have internal predecessors, (4835), 1495 states have call successors, (1495), 353 states have call predecessors, (1495), 349 states have return successors, (1492), 1469 states have call predecessors, (1492), 1491 states have call successors, (1492) [2022-11-22 01:57:13,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5724 states to 5724 states and 7822 transitions. [2022-11-22 01:57:13,751 INFO L78 Accepts]: Start accepts. Automaton has 5724 states and 7822 transitions. Word has length 128 [2022-11-22 01:57:13,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:13,752 INFO L495 AbstractCegarLoop]: Abstraction has 5724 states and 7822 transitions. [2022-11-22 01:57:13,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-22 01:57:13,753 INFO L276 IsEmpty]: Start isEmpty. Operand 5724 states and 7822 transitions. [2022-11-22 01:57:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-22 01:57:13,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:13,771 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 01:57:13,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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)] Forceful destruction successful, exit code 0 [2022-11-22 01:57:13,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:13,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:13,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:13,988 INFO L85 PathProgramCache]: Analyzing trace with hash -707156274, now seen corresponding path program 1 times [2022-11-22 01:57:13,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:57:13,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179621956] [2022-11-22 01:57:13,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:13,991 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 01:57:13,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:57:13,993 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:14,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:15,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:57:15,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:15,359 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 01:57:15,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:57:15,360 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:57:15,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179621956] [2022-11-22 01:57:15,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179621956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:15,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:15,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:57:15,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822911736] [2022-11-22 01:57:15,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:15,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:57:15,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:57:15,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:57:15,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:15,362 INFO L87 Difference]: Start difference. First operand 5724 states and 7822 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 01:57:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:16,368 INFO L93 Difference]: Finished difference Result 15457 states and 21131 transitions. [2022-11-22 01:57:16,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:57:16,369 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 01:57:16,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:16,448 INFO L225 Difference]: With dead ends: 15457 [2022-11-22 01:57:16,448 INFO L226 Difference]: Without dead ends: 10463 [2022-11-22 01:57:16,473 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 01:57:16,475 INFO L413 NwaCegarLoop]: 3431 mSDtfsCounter, 2098 mSDsluCounter, 2202 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 5633 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:16,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 5633 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:57:16,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2022-11-22 01:57:17,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 10459. [2022-11-22 01:57:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10459 states, 7093 states have (on average 1.2467221204003947) internal successors, (8843), 7315 states have internal predecessors, (8843), 2723 states have call successors, (2723), 645 states have call predecessors, (2723), 640 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-22 01:57:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10459 states to 10459 states and 14287 transitions. [2022-11-22 01:57:17,406 INFO L78 Accepts]: Start accepts. Automaton has 10459 states and 14287 transitions. Word has length 172 [2022-11-22 01:57:17,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:17,409 INFO L495 AbstractCegarLoop]: Abstraction has 10459 states and 14287 transitions. [2022-11-22 01:57:17,409 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 01:57:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 10459 states and 14287 transitions. [2022-11-22 01:57:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-22 01:57:17,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:17,417 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 01:57:17,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:17,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:17,631 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:17,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:17,632 INFO L85 PathProgramCache]: Analyzing trace with hash -566607664, now seen corresponding path program 1 times [2022-11-22 01:57:17,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:57:17,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588333830] [2022-11-22 01:57:17,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:17,635 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 01:57:17,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:57:17,643 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:17,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:19,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:57:19,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:21,250 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 01:57:21,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:57:21,251 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:57:21,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588333830] [2022-11-22 01:57:21,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588333830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:21,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:21,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:57:21,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926522282] [2022-11-22 01:57:21,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:21,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:57:21,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:57:21,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:57:21,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:57:21,254 INFO L87 Difference]: Start difference. First operand 10459 states and 14287 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 01:57:22,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:22,533 INFO L93 Difference]: Finished difference Result 10465 states and 14292 transitions. [2022-11-22 01:57:22,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:57:22,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 01:57:22,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:22,624 INFO L225 Difference]: With dead ends: 10465 [2022-11-22 01:57:22,625 INFO L226 Difference]: Without dead ends: 10463 [2022-11-22 01:57:22,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:57:22,632 INFO L413 NwaCegarLoop]: 2226 mSDtfsCounter, 2151 mSDsluCounter, 4448 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 6674 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:22,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2152 Valid, 6674 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:57:22,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2022-11-22 01:57:23,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 10463. [2022-11-22 01:57:23,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10463 states, 7096 states have (on average 1.246617812852311) internal successors, (8846), 7318 states have internal predecessors, (8846), 2723 states have call successors, (2723), 646 states have call predecessors, (2723), 641 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-22 01:57:23,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10463 states to 10463 states and 14290 transitions. [2022-11-22 01:57:23,894 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 14290 transitions. Word has length 172 [2022-11-22 01:57:23,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:23,896 INFO L495 AbstractCegarLoop]: Abstraction has 10463 states and 14290 transitions. [2022-11-22 01:57:23,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 01:57:23,897 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 14290 transitions. [2022-11-22 01:57:23,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-22 01:57:23,906 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:23,906 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 01:57:23,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:24,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:24,124 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:24,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:24,125 INFO L85 PathProgramCache]: Analyzing trace with hash 910693266, now seen corresponding path program 1 times [2022-11-22 01:57:24,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:57:24,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292643617] [2022-11-22 01:57:24,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:24,127 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 01:57:24,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:57:24,130 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:24,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:25,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:57:25,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:28,068 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 01:57:28,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:57:29,106 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 01:57:29,106 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:57:29,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292643617] [2022-11-22 01:57:29,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292643617] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:57:29,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:57:29,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:57:29,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444325246] [2022-11-22 01:57:29,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:29,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:57:29,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:57:29,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:57:29,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:57:29,109 INFO L87 Difference]: Start difference. First operand 10463 states and 14290 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 01:57:30,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:30,585 INFO L93 Difference]: Finished difference Result 10469 states and 14295 transitions. [2022-11-22 01:57:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:57:30,586 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 01:57:30,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:30,648 INFO L225 Difference]: With dead ends: 10469 [2022-11-22 01:57:30,649 INFO L226 Difference]: Without dead ends: 10467 [2022-11-22 01:57:30,655 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 01:57:30,657 INFO L413 NwaCegarLoop]: 2229 mSDtfsCounter, 2176 mSDsluCounter, 4447 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 6676 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:30,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 6676 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:57:30,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2022-11-22 01:57:31,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 10467. [2022-11-22 01:57:31,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10467 states, 7099 states have (on average 1.2465135934638683) internal successors, (8849), 7321 states have internal predecessors, (8849), 2723 states have call successors, (2723), 647 states have call predecessors, (2723), 642 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-22 01:57:31,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10467 states to 10467 states and 14293 transitions. [2022-11-22 01:57:31,920 INFO L78 Accepts]: Start accepts. Automaton has 10467 states and 14293 transitions. Word has length 177 [2022-11-22 01:57:31,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:31,921 INFO L495 AbstractCegarLoop]: Abstraction has 10467 states and 14293 transitions. [2022-11-22 01:57:31,922 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 01:57:31,922 INFO L276 IsEmpty]: Start isEmpty. Operand 10467 states and 14293 transitions. [2022-11-22 01:57:31,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-22 01:57:31,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:31,932 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 01:57:31,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:32,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:32,162 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:32,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:32,163 INFO L85 PathProgramCache]: Analyzing trace with hash -2093563440, now seen corresponding path program 1 times [2022-11-22 01:57:32,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:57:32,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055824331] [2022-11-22 01:57:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:32,165 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 01:57:32,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:57:32,167 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:32,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:33,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:57:33,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:35,605 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 01:57:35,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:57:36,613 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 01:57:36,614 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:57:36,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055824331] [2022-11-22 01:57:36,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055824331] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:57:36,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:57:36,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:57:36,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262801076] [2022-11-22 01:57:36,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:36,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:57:36,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:57:36,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:57:36,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:57:36,617 INFO L87 Difference]: Start difference. First operand 10467 states and 14293 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 01:57:38,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:38,092 INFO L93 Difference]: Finished difference Result 10473 states and 14298 transitions. [2022-11-22 01:57:38,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:57:38,093 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 01:57:38,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:38,150 INFO L225 Difference]: With dead ends: 10473 [2022-11-22 01:57:38,151 INFO L226 Difference]: Without dead ends: 10469 [2022-11-22 01:57:38,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:57:38,158 INFO L413 NwaCegarLoop]: 2229 mSDtfsCounter, 2148 mSDsluCounter, 4473 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 6702 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:38,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 6702 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:57:38,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10469 states. [2022-11-22 01:57:39,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10469 to 10469. [2022-11-22 01:57:39,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10469 states, 7101 states have (on average 1.2463033375580903) internal successors, (8850), 7322 states have internal predecessors, (8850), 2723 states have call successors, (2723), 648 states have call predecessors, (2723), 642 states have return successors, (2721), 2688 states have call predecessors, (2721), 2719 states have call successors, (2721) [2022-11-22 01:57:39,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10469 states to 10469 states and 14294 transitions. [2022-11-22 01:57:39,373 INFO L78 Accepts]: Start accepts. Automaton has 10469 states and 14294 transitions. Word has length 182 [2022-11-22 01:57:39,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:39,374 INFO L495 AbstractCegarLoop]: Abstraction has 10469 states and 14294 transitions. [2022-11-22 01:57:39,375 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 01:57:39,375 INFO L276 IsEmpty]: Start isEmpty. Operand 10469 states and 14294 transitions. [2022-11-22 01:57:39,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-22 01:57:39,384 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:39,384 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 01:57:39,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:39,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:39,611 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:39,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:39,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1882087954, now seen corresponding path program 1 times [2022-11-22 01:57:39,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:57:39,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1026634540] [2022-11-22 01:57:39,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:39,614 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 01:57:39,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:57:39,616 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:39,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:41,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:57:41,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:43,489 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 01:57:43,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:57:44,542 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 01:57:44,542 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:57:44,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1026634540] [2022-11-22 01:57:44,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1026634540] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-22 01:57:44,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:57:44,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:57:44,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868250160] [2022-11-22 01:57:44,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:44,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:57:44,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:57:44,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:57:44,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:57:44,546 INFO L87 Difference]: Start difference. First operand 10469 states and 14294 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 01:57:45,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:45,747 INFO L93 Difference]: Finished difference Result 10469 states and 14294 transitions. [2022-11-22 01:57:45,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:57:45,747 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 01:57:45,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:45,808 INFO L225 Difference]: With dead ends: 10469 [2022-11-22 01:57:45,808 INFO L226 Difference]: Without dead ends: 10398 [2022-11-22 01:57:45,817 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 01:57:45,818 INFO L413 NwaCegarLoop]: 2227 mSDtfsCounter, 2172 mSDsluCounter, 4446 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 6673 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:45,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 6673 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:57:45,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2022-11-22 01:57:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 10398. [2022-11-22 01:57:47,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10398 states, 7067 states have (on average 1.2457902929107119) internal successors, (8804), 7276 states have internal predecessors, (8804), 2692 states have call successors, (2692), 639 states have call predecessors, (2692), 637 states have return successors, (2694), 2672 states have call predecessors, (2694), 2692 states have call successors, (2694) [2022-11-22 01:57:47,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10398 states to 10398 states and 14190 transitions. [2022-11-22 01:57:47,723 INFO L78 Accepts]: Start accepts. Automaton has 10398 states and 14190 transitions. Word has length 187 [2022-11-22 01:57:47,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:47,724 INFO L495 AbstractCegarLoop]: Abstraction has 10398 states and 14190 transitions. [2022-11-22 01:57:47,724 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 01:57:47,724 INFO L276 IsEmpty]: Start isEmpty. Operand 10398 states and 14190 transitions. [2022-11-22 01:57:47,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-22 01:57:47,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:47,732 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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] [2022-11-22 01:57:47,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:47,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:47,957 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:47,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:47,957 INFO L85 PathProgramCache]: Analyzing trace with hash -540522438, now seen corresponding path program 1 times [2022-11-22 01:57:47,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:57:47,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499535910] [2022-11-22 01:57:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:47,959 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 01:57:47,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:57:47,962 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:47,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:49,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:57:49,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:49,939 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2022-11-22 01:57:49,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:57:49,939 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:57:49,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499535910] [2022-11-22 01:57:49,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [499535910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:49,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:49,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:57:49,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964844661] [2022-11-22 01:57:49,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:49,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:57:49,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:57:49,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:57:49,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:49,942 INFO L87 Difference]: Start difference. First operand 10398 states and 14190 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 01:57:51,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:51,482 INFO L93 Difference]: Finished difference Result 23826 states and 32552 transitions. [2022-11-22 01:57:51,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:57:51,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 192 [2022-11-22 01:57:51,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:51,565 INFO L225 Difference]: With dead ends: 23826 [2022-11-22 01:57:51,566 INFO L226 Difference]: Without dead ends: 14158 [2022-11-22 01:57:51,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 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 01:57:51,615 INFO L413 NwaCegarLoop]: 3715 mSDtfsCounter, 1542 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 5840 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:51,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 5840 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:57:51,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14158 states. [2022-11-22 01:57:53,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14158 to 14152. [2022-11-22 01:57:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14152 states, 9645 states have (on average 1.2466562986003111) internal successors, (12024), 9926 states have internal predecessors, (12024), 3636 states have call successors, (3636), 871 states have call predecessors, (3636), 869 states have return successors, (3638), 3614 states have call predecessors, (3638), 3636 states have call successors, (3638) [2022-11-22 01:57:53,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14152 states to 14152 states and 19298 transitions. [2022-11-22 01:57:53,289 INFO L78 Accepts]: Start accepts. Automaton has 14152 states and 19298 transitions. Word has length 192 [2022-11-22 01:57:53,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:53,290 INFO L495 AbstractCegarLoop]: Abstraction has 14152 states and 19298 transitions. [2022-11-22 01:57:53,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 01:57:53,290 INFO L276 IsEmpty]: Start isEmpty. Operand 14152 states and 19298 transitions. [2022-11-22 01:57:53,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-22 01:57:53,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:53,311 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:53,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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)] Forceful destruction successful, exit code 0 [2022-11-22 01:57:53,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:53,527 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:57:53,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:53,528 INFO L85 PathProgramCache]: Analyzing trace with hash -980852503, now seen corresponding path program 1 times [2022-11-22 01:57:53,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:57:53,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264115479] [2022-11-22 01:57:53,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:53,530 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 01:57:53,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:57:53,539 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:53,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:57:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:55,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:57:55,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:55,294 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-22 01:57:55,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:57:55,295 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:57:55,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264115479] [2022-11-22 01:57:55,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264115479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:55,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:55,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:57:55,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189857059] [2022-11-22 01:57:55,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:55,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:57:55,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:57:55,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:57:55,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:57:55,299 INFO L87 Difference]: Start difference. First operand 14152 states and 19298 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-22 01:57:57,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:57,761 INFO L93 Difference]: Finished difference Result 31684 states and 43202 transitions. [2022-11-22 01:57:57,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:57:57,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 266 [2022-11-22 01:57:57,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:57,857 INFO L225 Difference]: With dead ends: 31684 [2022-11-22 01:57:57,857 INFO L226 Difference]: Without dead ends: 18262 [2022-11-22 01:57:57,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 264 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 01:57:57,912 INFO L413 NwaCegarLoop]: 3745 mSDtfsCounter, 1922 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 5526 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:57,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 5526 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:57:57,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18262 states. [2022-11-22 01:57:59,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18262 to 18256. [2022-11-22 01:57:59,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18256 states, 12469 states have (on average 1.246130403400433) internal successors, (15538), 12826 states have internal predecessors, (15538), 4652 states have call successors, (4652), 1135 states have call predecessors, (4652), 1133 states have return successors, (4654), 4628 states have call predecessors, (4654), 4652 states have call successors, (4654) [2022-11-22 01:57:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18256 states to 18256 states and 24844 transitions. [2022-11-22 01:57:59,876 INFO L78 Accepts]: Start accepts. Automaton has 18256 states and 24844 transitions. Word has length 266 [2022-11-22 01:57:59,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:59,877 INFO L495 AbstractCegarLoop]: Abstraction has 18256 states and 24844 transitions. [2022-11-22 01:57:59,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-22 01:57:59,878 INFO L276 IsEmpty]: Start isEmpty. Operand 18256 states and 24844 transitions. [2022-11-22 01:57:59,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-22 01:57:59,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:59,900 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:59,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:00,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:00,128 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:58:00,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:00,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1640384025, now seen corresponding path program 1 times [2022-11-22 01:58:00,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:58:00,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567132835] [2022-11-22 01:58:00,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:00,130 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 01:58:00,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:58:00,132 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:00,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:01,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:58:01,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-22 01:58:01,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:58:01,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:58:01,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567132835] [2022-11-22 01:58:01,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567132835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:01,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:01,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:58:01,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533454056] [2022-11-22 01:58:01,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:01,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:58:01,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:58:01,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:58:01,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:58:01,802 INFO L87 Difference]: Start difference. First operand 18256 states and 24844 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-22 01:58:04,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:04,083 INFO L93 Difference]: Finished difference Result 39504 states and 53796 transitions. [2022-11-22 01:58:04,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:58:04,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 266 [2022-11-22 01:58:04,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:04,199 INFO L225 Difference]: With dead ends: 39504 [2022-11-22 01:58:04,199 INFO L226 Difference]: Without dead ends: 21978 [2022-11-22 01:58:04,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 264 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 01:58:04,268 INFO L413 NwaCegarLoop]: 3734 mSDtfsCounter, 1546 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:04,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 5866 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:58:04,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21978 states. [2022-11-22 01:58:06,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21978 to 21972. [2022-11-22 01:58:06,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21972 states, 15023 states have (on average 1.2470212341077016) internal successors, (18734), 15452 states have internal predecessors, (18734), 5584 states have call successors, (5584), 1365 states have call predecessors, (5584), 1363 states have return successors, (5586), 5558 states have call predecessors, (5586), 5584 states have call successors, (5586) [2022-11-22 01:58:06,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21972 states to 21972 states and 29904 transitions. [2022-11-22 01:58:06,506 INFO L78 Accepts]: Start accepts. Automaton has 21972 states and 29904 transitions. Word has length 266 [2022-11-22 01:58:06,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:06,507 INFO L495 AbstractCegarLoop]: Abstraction has 21972 states and 29904 transitions. [2022-11-22 01:58:06,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-22 01:58:06,507 INFO L276 IsEmpty]: Start isEmpty. Operand 21972 states and 29904 transitions. [2022-11-22 01:58:06,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-22 01:58:06,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:06,541 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:06,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:06,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:06,759 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:58:06,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:06,760 INFO L85 PathProgramCache]: Analyzing trace with hash -377906483, now seen corresponding path program 1 times [2022-11-22 01:58:06,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:58:06,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900005699] [2022-11-22 01:58:06,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:06,762 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 01:58:06,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:58:06,763 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:06,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:08,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:58:08,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:08,435 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-11-22 01:58:08,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:58:08,436 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:58:08,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900005699] [2022-11-22 01:58:08,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900005699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:08,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:08,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:58:08,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691101331] [2022-11-22 01:58:08,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:08,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:58:08,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:58:08,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:58:08,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:58:08,438 INFO L87 Difference]: Start difference. First operand 21972 states and 29904 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 01:58:11,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:11,419 INFO L93 Difference]: Finished difference Result 46934 states and 63920 transitions. [2022-11-22 01:58:11,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:58:11,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 321 [2022-11-22 01:58:11,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:11,515 INFO L225 Difference]: With dead ends: 46934 [2022-11-22 01:58:11,515 INFO L226 Difference]: Without dead ends: 25692 [2022-11-22 01:58:11,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 319 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 01:58:11,576 INFO L413 NwaCegarLoop]: 3616 mSDtfsCounter, 1546 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 5747 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:11,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 5747 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:58:11,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25692 states. [2022-11-22 01:58:13,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25692 to 25686. [2022-11-22 01:58:13,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25686 states, 17577 states have (on average 1.247653183137054) internal successors, (21930), 18078 states have internal predecessors, (21930), 6516 states have call successors, (6516), 1593 states have call predecessors, (6516), 1591 states have return successors, (6518), 6488 states have call predecessors, (6518), 6516 states have call successors, (6518) [2022-11-22 01:58:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25686 states to 25686 states and 34964 transitions. [2022-11-22 01:58:13,963 INFO L78 Accepts]: Start accepts. Automaton has 25686 states and 34964 transitions. Word has length 321 [2022-11-22 01:58:13,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:13,964 INFO L495 AbstractCegarLoop]: Abstraction has 25686 states and 34964 transitions. [2022-11-22 01:58:13,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 01:58:13,964 INFO L276 IsEmpty]: Start isEmpty. Operand 25686 states and 34964 transitions. [2022-11-22 01:58:13,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-11-22 01:58:13,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:13,996 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:14,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:14,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:14,212 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:58:14,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:14,212 INFO L85 PathProgramCache]: Analyzing trace with hash 281625039, now seen corresponding path program 1 times [2022-11-22 01:58:14,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:58:14,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887626265] [2022-11-22 01:58:14,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:14,215 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 01:58:14,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:58:14,216 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:14,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:15,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 01:58:15,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2022-11-22 01:58:15,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:58:15,975 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:58:15,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887626265] [2022-11-22 01:58:15,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887626265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:15,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:15,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:58:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749092541] [2022-11-22 01:58:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:15,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:58:15,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:58:15,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:58:15,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:58:15,979 INFO L87 Difference]: Start difference. First operand 25686 states and 34964 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 01:58:18,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:18,981 INFO L93 Difference]: Finished difference Result 54410 states and 74100 transitions. [2022-11-22 01:58:18,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:58:18,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 321 [2022-11-22 01:58:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:19,099 INFO L225 Difference]: With dead ends: 54410 [2022-11-22 01:58:19,099 INFO L226 Difference]: Without dead ends: 29454 [2022-11-22 01:58:19,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 319 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 01:58:19,155 INFO L413 NwaCegarLoop]: 3735 mSDtfsCounter, 1559 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 5867 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:19,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 5867 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:58:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29454 states. [2022-11-22 01:58:22,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29454 to 29448. [2022-11-22 01:58:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29448 states, 20171 states have (on average 1.2480293490654901) internal successors, (25174), 20744 states have internal predecessors, (25174), 7452 states have call successors, (7452), 1825 states have call predecessors, (7452), 1823 states have return successors, (7454), 7422 states have call predecessors, (7454), 7452 states have call successors, (7454) [2022-11-22 01:58:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29448 states to 29448 states and 40080 transitions. [2022-11-22 01:58:22,208 INFO L78 Accepts]: Start accepts. Automaton has 29448 states and 40080 transitions. Word has length 321 [2022-11-22 01:58:22,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:22,209 INFO L495 AbstractCegarLoop]: Abstraction has 29448 states and 40080 transitions. [2022-11-22 01:58:22,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 01:58:22,209 INFO L276 IsEmpty]: Start isEmpty. Operand 29448 states and 40080 transitions. [2022-11-22 01:58:22,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-11-22 01:58:22,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:22,236 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 11, 11, 11, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:22,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:22,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:22,437 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:58:22,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash -171216220, now seen corresponding path program 1 times [2022-11-22 01:58:22,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:58:22,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660477025] [2022-11-22 01:58:22,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:22,439 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 01:58:22,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:58:22,440 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:22,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68318b12-b35e-4470-b3e8-fd26b7797612/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 01:58:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:23,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 01:58:23,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2022-11-22 01:58:25,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:58:25,499 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:58:25,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660477025] [2022-11-22 01:58:25,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1660477025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:25,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:25,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-22 01:58:25,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61671132] [2022-11-22 01:58:25,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:25,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:58:25,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:58:25,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:58:25,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:58:25,502 INFO L87 Difference]: Start difference. First operand 29448 states and 40080 transitions. Second operand has 13 states, 12 states have (on average 13.083333333333334) internal successors, (157), 12 states have internal predecessors, (157), 5 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (33), 5 states have call predecessors, (33), 5 states have call successors, (33)