./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:21:21,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:21:21,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:21:21,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:21:21,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:21:21,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:21:21,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:21:21,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:21:21,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:21:21,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:21:21,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:21:21,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:21:21,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:21:21,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:21:21,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:21:21,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:21:21,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:21:21,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:21:21,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:21:21,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:21:21,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:21:21,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:21:21,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:21:21,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:21:21,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:21:21,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:21:21,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:21:21,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:21:21,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:21:21,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:21:21,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:21:21,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:21:21,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:21:21,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:21:21,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:21:21,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:21:21,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:21:21,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:21:21,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:21:21,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:21:21,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:21:21,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 17:21:21,735 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:21:21,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:21:21,737 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:21:21,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:21:21,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:21:21,738 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:21:21,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:21:21,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:21:21,740 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:21:21,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:21:21,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:21:21,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:21:21,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:21:21,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:21:21,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:21:21,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:21:21,742 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:21:21,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:21:21,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:21:21,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:21:21,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:21:21,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:21:21,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:21:21,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:21:21,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:21:21,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:21:21,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:21:21,745 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:21:21,746 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:21:21,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:21:21,746 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2022-11-21 17:21:22,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:21:22,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:21:22,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:21:22,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:21:22,103 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:21:22,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-21 17:21:25,307 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:21:26,039 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:21:26,040 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-21 17:21:26,094 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/data/a6f804594/6c7e0d0e5e8342e4a1ee3c27d0810ac8/FLAG61be7e5b2 [2022-11-21 17:21:26,117 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/data/a6f804594/6c7e0d0e5e8342e4a1ee3c27d0810ac8 [2022-11-21 17:21:26,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:21:26,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:21:26,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:21:26,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:21:26,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:21:26,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:21:26" (1/1) ... [2022-11-21 17:21:26,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc0b370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:26, skipping insertion in model container [2022-11-21 17:21:26,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:21:26" (1/1) ... [2022-11-21 17:21:26,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:21:26,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:21:27,908 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) [2022-11-21 17:21:27,919 INFO L158 Benchmark]: Toolchain (without parser) took 1793.17ms. Allocated memory is still 178.3MB. Free memory was 138.6MB in the beginning and 120.1MB in the end (delta: 18.5MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2022-11-21 17:21:27,920 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory was 112.8MB in the beginning and 112.6MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:21:27,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1788.11ms. Allocated memory is still 178.3MB. Free memory was 138.6MB in the beginning and 120.1MB in the end (delta: 18.5MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2022-11-21 17:21:27,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory was 112.8MB in the beginning and 112.6MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1788.11ms. Allocated memory is still 178.3MB. Free memory was 138.6MB in the beginning and 120.1MB in the end (delta: 18.5MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: AssertionError: Unknown Expression StructAccessExpression de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: AssertionError: Unknown Expression StructAccessExpression: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:424) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:21:30,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:21:30,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:21:30,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:21:30,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:21:30,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:21:30,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:21:30,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:21:30,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:21:30,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:21:30,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:21:30,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:21:30,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:21:30,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:21:30,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:21:30,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:21:30,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:21:30,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:21:30,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:21:30,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:21:30,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:21:30,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:21:30,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:21:30,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:21:30,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:21:30,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:21:30,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:21:30,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:21:30,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:21:30,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:21:30,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:21:30,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:21:30,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:21:30,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:21:30,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:21:30,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:21:30,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:21:30,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:21:30,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:21:30,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:21:30,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:21:30,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 17:21:30,488 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:21:30,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:21:30,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:21:30,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:21:30,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:21:30,491 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:21:30,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:21:30,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:21:30,492 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:21:30,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:21:30,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:21:30,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:21:30,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:21:30,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:21:30,494 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:21:30,495 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:21:30,495 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:21:30,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:21:30,495 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:21:30,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:21:30,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:21:30,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:21:30,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:21:30,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:21:30,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:21:30,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:21:30,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:21:30,497 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:21:30,497 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:21:30,498 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:21:30,498 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:21:30,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:21:30,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:21:30,499 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2022-11-21 17:21:30,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:21:30,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:21:30,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:21:30,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:21:30,894 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:21:30,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-21 17:21:34,089 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:21:34,714 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:21:34,715 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-21 17:21:34,765 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/data/b4c33685b/209703935de948b2a1ac3bde1684ca92/FLAGfec37f78d [2022-11-21 17:21:34,785 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/data/b4c33685b/209703935de948b2a1ac3bde1684ca92 [2022-11-21 17:21:34,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:21:34,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:21:34,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:21:34,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:21:34,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:21:34,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:21:34" (1/1) ... [2022-11-21 17:21:34,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7b2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:34, skipping insertion in model container [2022-11-21 17:21:34,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:21:34" (1/1) ... [2022-11-21 17:21:34,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:21:34,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:21:37,551 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-11-21 17:21:37,561 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-11-21 17:21:37,562 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-11-21 17:21:37,564 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-11-21 17:21:37,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:21:37,629 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-21 17:21:37,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:21:38,114 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-11-21 17:21:38,114 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-11-21 17:21:38,115 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-11-21 17:21:38,115 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-11-21 17:21:38,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:21:38,173 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:21:38,509 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2022-11-21 17:21:38,510 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2022-11-21 17:21:38,510 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2022-11-21 17:21:38,511 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_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2022-11-21 17:21:38,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:21:38,760 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:21:38,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38 WrapperNode [2022-11-21 17:21:38,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:21:38,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:21:38,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:21:38,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:21:38,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:38,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:39,073 INFO L138 Inliner]: procedures = 445, calls = 1714, calls flagged for inlining = 201, calls inlined = 185, statements flattened = 3950 [2022-11-21 17:21:39,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:21:39,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:21:39,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:21:39,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:21:39,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:39,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:39,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:39,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:39,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:39,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:39,273 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:39,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:39,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:21:39,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:21:39,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:21:39,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:21:39,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (1/1) ... [2022-11-21 17:21:39,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:21:39,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:21:39,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:21:39,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:21:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-11-21 17:21:39,393 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-11-21 17:21:39,393 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-21 17:21:39,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-21 17:21:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 17:21:39,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 17:21:39,394 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-21 17:21:39,394 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-21 17:21:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 17:21:39,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 17:21:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-21 17:21:39,395 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-21 17:21:39,395 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-11-21 17:21:39,396 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-11-21 17:21:39,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-21 17:21:39,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-21 17:21:39,397 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-21 17:21:39,397 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-21 17:21:39,398 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-21 17:21:39,398 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-21 17:21:39,399 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-11-21 17:21:39,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-11-21 17:21:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-21 17:21:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-21 17:21:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-21 17:21:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-21 17:21:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-21 17:21:39,400 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-21 17:21:39,400 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-11-21 17:21:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-11-21 17:21:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-21 17:21:39,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-21 17:21:39,401 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-11-21 17:21:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-11-21 17:21:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-21 17:21:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-21 17:21:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-21 17:21:39,402 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-21 17:21:39,402 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-21 17:21:39,403 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-21 17:21:39,403 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-21 17:21:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-21 17:21:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-21 17:21:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-21 17:21:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-21 17:21:39,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-21 17:21:39,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:21:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-21 17:21:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 17:21:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-21 17:21:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-21 17:21:39,405 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-11-21 17:21:39,405 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-11-21 17:21:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-11-21 17:21:39,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-11-21 17:21:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 17:21:39,406 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 17:21:39,406 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-21 17:21:39,406 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-21 17:21:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-11-21 17:21:39,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-11-21 17:21:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-21 17:21:39,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-21 17:21:39,407 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-21 17:21:39,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-21 17:21:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 17:21:39,408 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 17:21:39,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-21 17:21:39,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-21 17:21:39,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-21 17:21:39,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-21 17:21:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-21 17:21:39,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-21 17:21:39,410 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-21 17:21:39,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-21 17:21:39,411 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-21 17:21:39,411 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-21 17:21:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-21 17:21:39,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-21 17:21:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-11-21 17:21:39,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-11-21 17:21:39,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-21 17:21:39,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-21 17:21:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-11-21 17:21:39,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-11-21 17:21:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 17:21:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-21 17:21:39,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-21 17:21:39,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-21 17:21:39,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-21 17:21:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:21:39,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-21 17:21:39,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-21 17:21:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 17:21:39,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 17:21:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 17:21:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-21 17:21:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-21 17:21:39,415 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-21 17:21:39,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-21 17:21:39,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 17:21:39,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 17:21:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-21 17:21:39,418 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-11-21 17:21:39,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-11-21 17:21:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-21 17:21:39,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-21 17:21:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-21 17:21:39,419 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-21 17:21:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-21 17:21:39,419 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-21 17:21:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-21 17:21:39,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-21 17:21:39,419 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-11-21 17:21:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-11-21 17:21:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-11-21 17:21:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-11-21 17:21:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-21 17:21:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-21 17:21:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-21 17:21:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-21 17:21:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-21 17:21:39,420 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-11-21 17:21:39,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-11-21 17:21:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-21 17:21:39,421 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-21 17:21:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:21:39,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:21:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-11-21 17:21:39,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-11-21 17:21:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-21 17:21:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-21 17:21:39,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 17:21:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 17:21:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-21 17:21:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 17:21:39,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 17:21:39,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 17:21:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-11-21 17:21:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-11-21 17:21:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-21 17:21:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-21 17:21:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-21 17:21:39,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-21 17:21:39,428 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-21 17:21:39,429 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-21 17:21:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-21 17:21:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-21 17:21:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 17:21:39,430 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 17:21:39,430 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-11-21 17:21:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-11-21 17:21:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-11-21 17:21:39,431 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-11-21 17:21:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:21:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-21 17:21:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-21 17:21:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 17:21:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2022-11-21 17:21:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2022-11-21 17:21:39,433 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-11-21 17:21:39,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-11-21 17:21:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-21 17:21:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-11-21 17:21:39,434 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-11-21 17:21:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-21 17:21:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-21 17:21:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 17:21:39,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 17:21:39,435 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-21 17:21:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-21 17:21:39,435 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 17:21:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 17:21:39,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-21 17:21:39,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-21 17:21:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-21 17:21:39,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-21 17:21:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-21 17:21:39,436 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-21 17:21:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-11-21 17:21:39,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-11-21 17:21:39,436 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-11-21 17:21:39,437 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-11-21 17:21:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-21 17:21:39,437 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-21 17:21:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-21 17:21:39,437 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-21 17:21:39,437 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 17:21:39,437 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 17:21:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-21 17:21:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-21 17:21:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-21 17:21:39,438 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-21 17:21:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-21 17:21:39,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-21 17:21:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-21 17:21:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-21 17:21:39,439 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-21 17:21:39,439 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-21 17:21:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 17:21:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 17:21:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-11-21 17:21:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-11-21 17:21:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-11-21 17:21:39,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-11-21 17:21:39,440 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-11-21 17:21:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-11-21 17:21:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-21 17:21:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-11-21 17:21:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2022-11-21 17:21:39,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2022-11-21 17:21:39,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-21 17:21:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-21 17:21:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-11-21 17:21:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-11-21 17:21:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-21 17:21:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-21 17:21:39,442 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-21 17:21:39,442 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-21 17:21:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-21 17:21:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-11-21 17:21:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-11-21 17:21:39,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-21 17:21:39,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-21 17:21:40,460 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:21:40,469 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:21:45,988 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 17:22:22,139 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-21 17:22:22,259 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:22:22,278 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:22:22,278 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 17:22:22,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:22 BoogieIcfgContainer [2022-11-21 17:22:22,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:22:22,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:22:22,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:22:22,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:22:22,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:21:34" (1/3) ... [2022-11-21 17:22:22,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8d21b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:22, skipping insertion in model container [2022-11-21 17:22:22,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:21:38" (2/3) ... [2022-11-21 17:22:22,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8d21b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:22, skipping insertion in model container [2022-11-21 17:22:22,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:22" (3/3) ... [2022-11-21 17:22:22,294 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2022-11-21 17:22:22,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:22:22,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-21 17:22:22,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:22:22,445 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@58863765, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:22:22,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-21 17:22:22,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 1674 states, 1121 states have (on average 1.2488849241748439) internal successors, (1400), 1156 states have internal predecessors, (1400), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) [2022-11-21 17:22:22,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-21 17:22:22,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:22,494 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] [2022-11-21 17:22:22,494 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:22:22,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:22,503 INFO L85 PathProgramCache]: Analyzing trace with hash -274697905, now seen corresponding path program 1 times [2022-11-21 17:22:22,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:22,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690493162] [2022-11-21 17:22:22,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:22,522 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 [2022-11-21 17:22:22,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:22,535 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:22:22,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:23,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:22:23,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:24,041 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-21 17:22:24,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:24,042 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:24,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690493162] [2022-11-21 17:22:24,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690493162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:24,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:24,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:24,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629350550] [2022-11-21 17:22:24,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:24,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:24,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:24,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:24,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:24,125 INFO L87 Difference]: Start difference. First operand has 1674 states, 1121 states have (on average 1.2488849241748439) internal successors, (1400), 1156 states have internal predecessors, (1400), 457 states have call successors, (457), 96 states have call predecessors, (457), 95 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-21 17:22:24,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:24,824 INFO L93 Difference]: Finished difference Result 4874 states and 6858 transitions. [2022-11-21 17:22:24,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:24,827 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 [2022-11-21 17:22:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:24,876 INFO L225 Difference]: With dead ends: 4874 [2022-11-21 17:22:24,877 INFO L226 Difference]: Without dead ends: 3211 [2022-11-21 17:22:24,894 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 [2022-11-21 17:22:24,908 INFO L413 NwaCegarLoop]: 2707 mSDtfsCounter, 2157 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2157 SdHoareTripleChecker+Valid, 4939 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:24,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2157 Valid, 4939 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 17:22:24,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3211 states. [2022-11-21 17:22:25,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3211 to 3207. [2022-11-21 17:22:25,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 2160 states have (on average 1.2421296296296296) internal successors, (2683), 2227 states have internal predecessors, (2683), 858 states have call successors, (858), 187 states have call predecessors, (858), 186 states have return successors, (854), 848 states have call predecessors, (854), 854 states have call successors, (854) [2022-11-21 17:22:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 4395 transitions. [2022-11-21 17:22:25,365 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 4395 transitions. Word has length 116 [2022-11-21 17:22:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:25,367 INFO L495 AbstractCegarLoop]: Abstraction has 3207 states and 4395 transitions. [2022-11-21 17:22:25,367 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) [2022-11-21 17:22:25,367 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 4395 transitions. [2022-11-21 17:22:25,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-21 17:22:25,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:25,377 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:25,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:22:25,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:22:25,593 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:22:25,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:25,593 INFO L85 PathProgramCache]: Analyzing trace with hash -756882936, now seen corresponding path program 1 times [2022-11-21 17:22:25,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:25,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232108324] [2022-11-21 17:22:25,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:25,596 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 [2022-11-21 17:22:25,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:25,597 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:22:25,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:26,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:22:26,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-21 17:22:27,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:27,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:27,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232108324] [2022-11-21 17:22:27,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232108324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:27,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:27,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:27,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372581829] [2022-11-21 17:22:27,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:27,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:27,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:27,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:27,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:27,041 INFO L87 Difference]: Start difference. First operand 3207 states and 4395 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 17:22:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:27,681 INFO L93 Difference]: Finished difference Result 8861 states and 12103 transitions. [2022-11-21 17:22:27,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2022-11-21 17:22:27,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:27,733 INFO L225 Difference]: With dead ends: 8861 [2022-11-21 17:22:27,734 INFO L226 Difference]: Without dead ends: 5675 [2022-11-21 17:22:27,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:27,749 INFO L413 NwaCegarLoop]: 2721 mSDtfsCounter, 1754 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 4930 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:27,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 4930 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:22:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5675 states. [2022-11-21 17:22:28,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5675 to 5646. [2022-11-21 17:22:28,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5646 states, 3795 states have (on average 1.230566534914361) internal successors, (4670), 3909 states have internal predecessors, (4670), 1503 states have call successors, (1503), 352 states have call predecessors, (1503), 345 states have return successors, (1519), 1470 states have call predecessors, (1519), 1499 states have call successors, (1519) [2022-11-21 17:22:28,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5646 states to 5646 states and 7692 transitions. [2022-11-21 17:22:28,170 INFO L78 Accepts]: Start accepts. Automaton has 5646 states and 7692 transitions. Word has length 120 [2022-11-21 17:22:28,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:28,170 INFO L495 AbstractCegarLoop]: Abstraction has 5646 states and 7692 transitions. [2022-11-21 17:22:28,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-21 17:22:28,172 INFO L276 IsEmpty]: Start isEmpty. Operand 5646 states and 7692 transitions. [2022-11-21 17:22:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-21 17:22:28,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:28,185 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:28,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:28,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:22:28,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:22:28,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:28,408 INFO L85 PathProgramCache]: Analyzing trace with hash -241374758, now seen corresponding path program 1 times [2022-11-21 17:22:28,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:28,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52361374] [2022-11-21 17:22:28,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:28,410 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 [2022-11-21 17:22:28,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:28,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:22:28,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:29,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:22:29,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-21 17:22:29,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:29,851 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:29,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52361374] [2022-11-21 17:22:29,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52361374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:29,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:29,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:29,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338361552] [2022-11-21 17:22:29,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:29,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:29,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:29,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:29,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:29,854 INFO L87 Difference]: Start difference. First operand 5646 states and 7692 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 17:22:30,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:30,793 INFO L93 Difference]: Finished difference Result 12439 states and 16934 transitions. [2022-11-21 17:22:30,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:30,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 165 [2022-11-21 17:22:30,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:30,840 INFO L225 Difference]: With dead ends: 12439 [2022-11-21 17:22:30,840 INFO L226 Difference]: Without dead ends: 6814 [2022-11-21 17:22:30,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:30,868 INFO L413 NwaCegarLoop]: 3303 mSDtfsCounter, 1629 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 5506 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:30,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1629 Valid, 5506 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:22:30,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6814 states. [2022-11-21 17:22:31,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6814 to 6787. [2022-11-21 17:22:31,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6787 states, 4608 states have (on average 1.2282986111111112) internal successors, (5660), 4739 states have internal predecessors, (5660), 1752 states have call successors, (1752), 432 states have call predecessors, (1752), 424 states have return successors, (1760), 1716 states have call predecessors, (1760), 1748 states have call successors, (1760) [2022-11-21 17:22:31,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6787 states to 6787 states and 9172 transitions. [2022-11-21 17:22:31,329 INFO L78 Accepts]: Start accepts. Automaton has 6787 states and 9172 transitions. Word has length 165 [2022-11-21 17:22:31,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:31,330 INFO L495 AbstractCegarLoop]: Abstraction has 6787 states and 9172 transitions. [2022-11-21 17:22:31,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 17:22:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 6787 states and 9172 transitions. [2022-11-21 17:22:31,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-21 17:22:31,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:31,335 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:31,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:31,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:22:31,561 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:22:31,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:31,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1332695576, now seen corresponding path program 1 times [2022-11-21 17:22:31,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:31,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280906987] [2022-11-21 17:22:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:31,563 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 [2022-11-21 17:22:31,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:31,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:22:31,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:32,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:22:32,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-11-21 17:22:32,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:32,905 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:32,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280906987] [2022-11-21 17:22:32,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280906987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:32,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:32,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:32,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278667823] [2022-11-21 17:22:32,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:32,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:32,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:32,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:32,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:32,908 INFO L87 Difference]: Start difference. First operand 6787 states and 9172 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 17:22:33,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:33,797 INFO L93 Difference]: Finished difference Result 15249 states and 20637 transitions. [2022-11-21 17:22:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:33,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2022-11-21 17:22:33,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:33,855 INFO L225 Difference]: With dead ends: 15249 [2022-11-21 17:22:33,855 INFO L226 Difference]: Without dead ends: 8483 [2022-11-21 17:22:33,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:33,883 INFO L413 NwaCegarLoop]: 2686 mSDtfsCounter, 2026 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2026 SdHoareTripleChecker+Valid, 4886 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:33,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2026 Valid, 4886 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 17:22:33,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8483 states. [2022-11-21 17:22:34,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8483 to 8455. [2022-11-21 17:22:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8455 states, 5715 states have (on average 1.2290463692038496) internal successors, (7024), 5893 states have internal predecessors, (7024), 2196 states have call successors, (2196), 554 states have call predecessors, (2196), 541 states have return successors, (2213), 2130 states have call predecessors, (2213), 2192 states have call successors, (2213) [2022-11-21 17:22:34,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8455 states to 8455 states and 11433 transitions. [2022-11-21 17:22:34,460 INFO L78 Accepts]: Start accepts. Automaton has 8455 states and 11433 transitions. Word has length 167 [2022-11-21 17:22:34,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:34,462 INFO L495 AbstractCegarLoop]: Abstraction has 8455 states and 11433 transitions. [2022-11-21 17:22:34,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-21 17:22:34,462 INFO L276 IsEmpty]: Start isEmpty. Operand 8455 states and 11433 transitions. [2022-11-21 17:22:34,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-21 17:22:34,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:34,466 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] [2022-11-21 17:22:34,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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)] Ended with exit code 0 [2022-11-21 17:22:34,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:22:34,691 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:22:34,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:34,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1206652310, now seen corresponding path program 1 times [2022-11-21 17:22:34,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:34,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768595363] [2022-11-21 17:22:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:34,694 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 [2022-11-21 17:22:34,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:34,695 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:22:34,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:35,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:22:35,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:35,969 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-11-21 17:22:35,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:35,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:35,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768595363] [2022-11-21 17:22:35,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768595363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:35,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:35,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:35,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192581496] [2022-11-21 17:22:35,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:35,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:35,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:35,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:35,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:35,971 INFO L87 Difference]: Start difference. First operand 8455 states and 11433 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:22:37,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:37,039 INFO L93 Difference]: Finished difference Result 24668 states and 33392 transitions. [2022-11-21 17:22:37,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:37,040 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 [2022-11-21 17:22:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:37,159 INFO L225 Difference]: With dead ends: 24668 [2022-11-21 17:22:37,159 INFO L226 Difference]: Without dead ends: 16309 [2022-11-21 17:22:37,200 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 [2022-11-21 17:22:37,201 INFO L413 NwaCegarLoop]: 2871 mSDtfsCounter, 2121 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 5112 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:37,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2121 Valid, 5112 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 17:22:37,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16309 states. [2022-11-21 17:22:38,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16309 to 16305. [2022-11-21 17:22:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16305 states, 11031 states have (on average 1.228991025292358) internal successors, (13557), 11357 states have internal predecessors, (13557), 4220 states have call successors, (4220), 1072 states have call predecessors, (4220), 1051 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-21 17:22:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16305 states to 16305 states and 22035 transitions. [2022-11-21 17:22:38,398 INFO L78 Accepts]: Start accepts. Automaton has 16305 states and 22035 transitions. Word has length 172 [2022-11-21 17:22:38,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:38,399 INFO L495 AbstractCegarLoop]: Abstraction has 16305 states and 22035 transitions. [2022-11-21 17:22:38,399 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) [2022-11-21 17:22:38,400 INFO L276 IsEmpty]: Start isEmpty. Operand 16305 states and 22035 transitions. [2022-11-21 17:22:38,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-21 17:22:38,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:38,404 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] [2022-11-21 17:22:38,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:38,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:22:38,633 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:22:38,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:38,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1347200920, now seen corresponding path program 1 times [2022-11-21 17:22:38,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:38,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726791730] [2022-11-21 17:22:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:38,634 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 [2022-11-21 17:22:38,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:38,636 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:22:38,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:39,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:22:39,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:41,518 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-21 17:22:41,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:41,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:41,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726791730] [2022-11-21 17:22:41,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726791730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:41,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:41,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:22:41,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286947866] [2022-11-21 17:22:41,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:41,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:22:41,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:41,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:22:41,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:22:41,521 INFO L87 Difference]: Start difference. First operand 16305 states and 22035 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-21 17:22:42,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:42,780 INFO L93 Difference]: Finished difference Result 16311 states and 22040 transitions. [2022-11-21 17:22:42,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:22:42,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 172 [2022-11-21 17:22:42,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:42,867 INFO L225 Difference]: With dead ends: 16311 [2022-11-21 17:22:42,867 INFO L226 Difference]: Without dead ends: 16309 [2022-11-21 17:22:42,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:22:42,877 INFO L413 NwaCegarLoop]: 2265 mSDtfsCounter, 2190 mSDsluCounter, 4518 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 6783 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:42,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 6783 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:22:42,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16309 states. [2022-11-21 17:22:44,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16309 to 16309. [2022-11-21 17:22:44,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16309 states, 11034 states have (on average 1.2289287656334964) internal successors, (13560), 11360 states have internal predecessors, (13560), 4220 states have call successors, (4220), 1073 states have call predecessors, (4220), 1052 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-21 17:22:44,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16309 states to 16309 states and 22038 transitions. [2022-11-21 17:22:44,282 INFO L78 Accepts]: Start accepts. Automaton has 16309 states and 22038 transitions. Word has length 172 [2022-11-21 17:22:44,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:44,283 INFO L495 AbstractCegarLoop]: Abstraction has 16309 states and 22038 transitions. [2022-11-21 17:22:44,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-21 17:22:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 16309 states and 22038 transitions. [2022-11-21 17:22:44,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-21 17:22:44,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:44,287 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] [2022-11-21 17:22:44,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:44,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:22:44,512 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:22:44,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1529243110, now seen corresponding path program 1 times [2022-11-21 17:22:44,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:44,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625539513] [2022-11-21 17:22:44,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:44,514 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 [2022-11-21 17:22:44,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:44,515 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:22:44,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:45,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:22:45,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:47,975 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-21 17:22:47,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:22:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-11-21 17:22:48,971 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:48,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625539513] [2022-11-21 17:22:48,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625539513] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 17:22:48,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:22:48,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-21 17:22:48,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646576685] [2022-11-21 17:22:48,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:48,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:22:48,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:48,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:22:48,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:22:48,973 INFO L87 Difference]: Start difference. First operand 16309 states and 22038 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-21 17:22:50,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:50,268 INFO L93 Difference]: Finished difference Result 16315 states and 22043 transitions. [2022-11-21 17:22:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:22:50,271 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 [2022-11-21 17:22:50,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:50,350 INFO L225 Difference]: With dead ends: 16315 [2022-11-21 17:22:50,350 INFO L226 Difference]: Without dead ends: 16313 [2022-11-21 17:22:50,358 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 [2022-11-21 17:22:50,358 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2217 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:50,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2217 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:22:50,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16313 states. [2022-11-21 17:22:51,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16313 to 16313. [2022-11-21 17:22:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16313 states, 11037 states have (on average 1.2288665398206033) internal successors, (13563), 11363 states have internal predecessors, (13563), 4220 states have call successors, (4220), 1074 states have call predecessors, (4220), 1053 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-21 17:22:51,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16313 states to 16313 states and 22041 transitions. [2022-11-21 17:22:51,817 INFO L78 Accepts]: Start accepts. Automaton has 16313 states and 22041 transitions. Word has length 177 [2022-11-21 17:22:51,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:51,818 INFO L495 AbstractCegarLoop]: Abstraction has 16313 states and 22041 transitions. [2022-11-21 17:22:51,819 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) [2022-11-21 17:22:51,819 INFO L276 IsEmpty]: Start isEmpty. Operand 16313 states and 22041 transitions. [2022-11-21 17:22:51,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-21 17:22:51,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:51,824 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] [2022-11-21 17:22:51,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:52,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:22:52,047 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:22:52,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:52,047 INFO L85 PathProgramCache]: Analyzing trace with hash 445055128, now seen corresponding path program 1 times [2022-11-21 17:22:52,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:52,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768302247] [2022-11-21 17:22:52,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:52,049 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 [2022-11-21 17:22:52,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:52,051 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:22:52,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:22:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:53,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:22:53,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-11-21 17:22:55,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:22:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-11-21 17:22:55,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:22:55,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768302247] [2022-11-21 17:22:55,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768302247] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 17:22:55,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:22:55,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-21 17:22:55,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618726533] [2022-11-21 17:22:55,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:55,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:22:55,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:22:55,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:22:55,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:22:55,948 INFO L87 Difference]: Start difference. First operand 16313 states and 22041 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-21 17:22:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:57,150 INFO L93 Difference]: Finished difference Result 16319 states and 22046 transitions. [2022-11-21 17:22:57,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:22:57,151 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 [2022-11-21 17:22:57,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:57,227 INFO L225 Difference]: With dead ends: 16319 [2022-11-21 17:22:57,227 INFO L226 Difference]: Without dead ends: 16317 [2022-11-21 17:22:57,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:22:57,235 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2216 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:57,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2216 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:22:57,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16317 states. [2022-11-21 17:22:58,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16317 to 16317. [2022-11-21 17:22:58,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16317 states, 11040 states have (on average 1.228804347826087) internal successors, (13566), 11366 states have internal predecessors, (13566), 4220 states have call successors, (4220), 1075 states have call predecessors, (4220), 1054 states have return successors, (4258), 4121 states have call predecessors, (4258), 4216 states have call successors, (4258) [2022-11-21 17:22:58,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16317 states to 16317 states and 22044 transitions. [2022-11-21 17:22:58,815 INFO L78 Accepts]: Start accepts. Automaton has 16317 states and 22044 transitions. Word has length 182 [2022-11-21 17:22:58,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:58,816 INFO L495 AbstractCegarLoop]: Abstraction has 16317 states and 22044 transitions. [2022-11-21 17:22:58,816 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) [2022-11-21 17:22:58,816 INFO L276 IsEmpty]: Start isEmpty. Operand 16317 states and 22044 transitions. [2022-11-21 17:22:58,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-21 17:22:58,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:58,821 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:58,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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)] Ended with exit code 0 [2022-11-21 17:22:59,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:22:59,048 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:22:59,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:59,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1875432395, now seen corresponding path program 1 times [2022-11-21 17:22:59,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:22:59,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226993394] [2022-11-21 17:22:59,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:59,050 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 [2022-11-21 17:22:59,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:22:59,050 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:22:59,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:23:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:00,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:23:00,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2022-11-21 17:23:00,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:23:00,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:23:00,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226993394] [2022-11-21 17:23:00,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226993394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:00,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:00,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:23:00,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738549384] [2022-11-21 17:23:00,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:00,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:23:00,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:23:00,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:23:00,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:23:00,261 INFO L87 Difference]: Start difference. First operand 16317 states and 22044 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-21 17:23:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:02,028 INFO L93 Difference]: Finished difference Result 40430 states and 54667 transitions. [2022-11-21 17:23:02,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:23:02,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2022-11-21 17:23:02,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:02,138 INFO L225 Difference]: With dead ends: 40430 [2022-11-21 17:23:02,138 INFO L226 Difference]: Without dead ends: 24209 [2022-11-21 17:23:02,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:23:02,191 INFO L413 NwaCegarLoop]: 4401 mSDtfsCounter, 2151 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 6644 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:02,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 6644 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 17:23:02,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24209 states. [2022-11-21 17:23:04,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24209 to 24175. [2022-11-21 17:23:04,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24175 states, 16364 states have (on average 1.228733805915424) internal successors, (20107), 16838 states have internal predecessors, (20107), 6244 states have call successors, (6244), 1593 states have call predecessors, (6244), 1564 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-21 17:23:04,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24175 states to 24175 states and 32654 transitions. [2022-11-21 17:23:04,140 INFO L78 Accepts]: Start accepts. Automaton has 24175 states and 32654 transitions. Word has length 199 [2022-11-21 17:23:04,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:04,141 INFO L495 AbstractCegarLoop]: Abstraction has 24175 states and 32654 transitions. [2022-11-21 17:23:04,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-21 17:23:04,141 INFO L276 IsEmpty]: Start isEmpty. Operand 24175 states and 32654 transitions. [2022-11-21 17:23:04,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-21 17:23:04,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:04,146 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] [2022-11-21 17:23:04,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:23:04,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:23:04,371 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:23:04,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:04,371 INFO L85 PathProgramCache]: Analyzing trace with hash 241766554, now seen corresponding path program 1 times [2022-11-21 17:23:04,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:23:04,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143049168] [2022-11-21 17:23:04,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:04,373 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 [2022-11-21 17:23:04,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:23:04,374 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:23:04,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:23:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:05,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:23:05,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-11-21 17:23:07,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:23:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2022-11-21 17:23:08,502 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:23:08,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143049168] [2022-11-21 17:23:08,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143049168] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:08,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:23:08,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-21 17:23:08,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300261337] [2022-11-21 17:23:08,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:08,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:23:08,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:23:08,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:23:08,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:23:08,504 INFO L87 Difference]: Start difference. First operand 24175 states and 32654 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-21 17:23:10,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:10,990 INFO L93 Difference]: Finished difference Result 24181 states and 32659 transitions. [2022-11-21 17:23:10,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:23:10,991 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 [2022-11-21 17:23:10,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:11,089 INFO L225 Difference]: With dead ends: 24181 [2022-11-21 17:23:11,090 INFO L226 Difference]: Without dead ends: 24179 [2022-11-21 17:23:11,102 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 [2022-11-21 17:23:11,103 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:11,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:23:11,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24179 states. [2022-11-21 17:23:13,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24179 to 24179. [2022-11-21 17:23:13,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24179 states, 16367 states have (on average 1.228691880002444) internal successors, (20110), 16841 states have internal predecessors, (20110), 6244 states have call successors, (6244), 1594 states have call predecessors, (6244), 1565 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-21 17:23:13,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24179 states to 24179 states and 32657 transitions. [2022-11-21 17:23:13,114 INFO L78 Accepts]: Start accepts. Automaton has 24179 states and 32657 transitions. Word has length 187 [2022-11-21 17:23:13,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:13,115 INFO L495 AbstractCegarLoop]: Abstraction has 24179 states and 32657 transitions. [2022-11-21 17:23:13,115 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) [2022-11-21 17:23:13,115 INFO L276 IsEmpty]: Start isEmpty. Operand 24179 states and 32657 transitions. [2022-11-21 17:23:13,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-21 17:23:13,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:13,120 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:13,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:23:13,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:23:13,343 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:23:13,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:13,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1999124072, now seen corresponding path program 1 times [2022-11-21 17:23:13,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:23:13,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789485400] [2022-11-21 17:23:13,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:13,344 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 [2022-11-21 17:23:13,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:23:13,345 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:23:13,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:23:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:14,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:23:14,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:16,635 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-11-21 17:23:16,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:23:17,581 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-11-21 17:23:17,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:23:17,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789485400] [2022-11-21 17:23:17,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789485400] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:17,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:23:17,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-21 17:23:17,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572677215] [2022-11-21 17:23:17,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:17,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:23:17,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:23:17,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:23:17,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:23:17,584 INFO L87 Difference]: Start difference. First operand 24179 states and 32657 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 17:23:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:19,947 INFO L93 Difference]: Finished difference Result 24185 states and 32662 transitions. [2022-11-21 17:23:19,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:23:19,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2022-11-21 17:23:19,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:20,029 INFO L225 Difference]: With dead ends: 24185 [2022-11-21 17:23:20,029 INFO L226 Difference]: Without dead ends: 24183 [2022-11-21 17:23:20,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:23:20,036 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:20,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:23:20,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2022-11-21 17:23:22,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 24183. [2022-11-21 17:23:22,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24183 states, 16370 states have (on average 1.2286499694563224) internal successors, (20113), 16844 states have internal predecessors, (20113), 6244 states have call successors, (6244), 1595 states have call predecessors, (6244), 1566 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-21 17:23:22,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24183 states to 24183 states and 32660 transitions. [2022-11-21 17:23:22,213 INFO L78 Accepts]: Start accepts. Automaton has 24183 states and 32660 transitions. Word has length 192 [2022-11-21 17:23:22,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:22,214 INFO L495 AbstractCegarLoop]: Abstraction has 24183 states and 32660 transitions. [2022-11-21 17:23:22,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-21 17:23:22,214 INFO L276 IsEmpty]: Start isEmpty. Operand 24183 states and 32660 transitions. [2022-11-21 17:23:22,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-21 17:23:22,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:22,218 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:22,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:23:22,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:23:22,419 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:23:22,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:22,419 INFO L85 PathProgramCache]: Analyzing trace with hash 275257114, now seen corresponding path program 1 times [2022-11-21 17:23:22,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:23:22,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317556526] [2022-11-21 17:23:22,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:22,421 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 [2022-11-21 17:23:22,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:23:22,422 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:23:22,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:23:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:23,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1179 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:23:23,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:25,466 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-11-21 17:23:25,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:23:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2022-11-21 17:23:26,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:23:26,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317556526] [2022-11-21 17:23:26,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317556526] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:26,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:23:26,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-21 17:23:26,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651946261] [2022-11-21 17:23:26,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:26,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:23:26,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:23:26,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:23:26,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:23:26,445 INFO L87 Difference]: Start difference. First operand 24183 states and 32660 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-21 17:23:29,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:29,294 INFO L93 Difference]: Finished difference Result 24189 states and 32665 transitions. [2022-11-21 17:23:29,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:23:29,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 197 [2022-11-21 17:23:29,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:29,363 INFO L225 Difference]: With dead ends: 24189 [2022-11-21 17:23:29,363 INFO L226 Difference]: Without dead ends: 24187 [2022-11-21 17:23:29,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-21 17:23:29,372 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2207 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:29,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 6785 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:23:29,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24187 states. [2022-11-21 17:23:32,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24187 to 24187. [2022-11-21 17:23:32,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24187 states, 16373 states have (on average 1.228608074268613) internal successors, (20116), 16847 states have internal predecessors, (20116), 6244 states have call successors, (6244), 1596 states have call predecessors, (6244), 1567 states have return successors, (6303), 6112 states have call predecessors, (6303), 6240 states have call successors, (6303) [2022-11-21 17:23:32,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24187 states to 24187 states and 32663 transitions. [2022-11-21 17:23:32,439 INFO L78 Accepts]: Start accepts. Automaton has 24187 states and 32663 transitions. Word has length 197 [2022-11-21 17:23:32,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:32,439 INFO L495 AbstractCegarLoop]: Abstraction has 24187 states and 32663 transitions. [2022-11-21 17:23:32,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-21 17:23:32,440 INFO L276 IsEmpty]: Start isEmpty. Operand 24187 states and 32663 transitions. [2022-11-21 17:23:32,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-11-21 17:23:32,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:32,445 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:32,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:23:32,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 17:23:32,656 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-21 17:23:32,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:32,656 INFO L85 PathProgramCache]: Analyzing trace with hash 99811992, now seen corresponding path program 1 times [2022-11-21 17:23:32,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:23:32,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238715245] [2022-11-21 17:23:32,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:32,657 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 [2022-11-21 17:23:32,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:23:32,659 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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) [2022-11-21 17:23:32,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_761cdb52-c0a5-4a6d-9ffb-897a925e4a9d/bin/uautomizer-vX5HgA9Q3a/mathsat -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 [2022-11-21 17:23:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:33,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:23:33,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-11-21 17:23:35,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:23:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2022-11-21 17:23:36,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:23:36,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238715245] [2022-11-21 17:23:36,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238715245] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:36,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:23:36,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-21 17:23:36,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848269258] [2022-11-21 17:23:36,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:36,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:23:36,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:23:36,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:23:36,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:23:36,950 INFO L87 Difference]: Start difference. First operand 24187 states and 32663 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23)