./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:46:06,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:46:06,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:46:06,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:46:06,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:46:06,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:46:06,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:46:06,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:46:06,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:46:06,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:46:06,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:46:06,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:46:06,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:46:06,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:46:06,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:46:06,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:46:06,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:46:06,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:46:06,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:46:06,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:46:06,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:46:06,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:46:06,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:46:06,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:46:06,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:46:06,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:46:06,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:46:06,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:46:06,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:46:06,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:46:06,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:46:06,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:46:06,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:46:06,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:46:06,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:46:06,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:46:06,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:46:06,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:46:06,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:46:06,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:46:06,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:46:06,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 11:46:06,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:46:06,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:46:06,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:46:06,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:46:06,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:46:06,608 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:46:06,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:46:06,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:46:06,610 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:46:06,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:46:06,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:46:06,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:46:06,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:46:06,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:46:06,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:46:06,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:46:06,612 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:46:06,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:46:06,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:46:06,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:46:06,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:46:06,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:46:06,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:46:06,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:46:06,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:46:06,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:46:06,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:46:06,615 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:46:06,615 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:46:06,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:46:06,616 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-11-20 11:46:06,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:46:07,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:46:07,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:46:07,007 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:46:07,008 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:46:07,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-20 11:46:10,178 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:46:11,121 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:46:11,122 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-20 11:46:11,195 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/data/8ee063a26/7c7bd1df60cd4e59a32c6c6ad420f6a1/FLAG3ba909a28 [2022-11-20 11:46:11,219 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/data/8ee063a26/7c7bd1df60cd4e59a32c6c6ad420f6a1 [2022-11-20 11:46:11,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:46:11,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:46:11,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:46:11,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:46:11,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:46:11,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:46:11" (1/1) ... [2022-11-20 11:46:11,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a670966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:11, skipping insertion in model container [2022-11-20 11:46:11,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:46:11" (1/1) ... [2022-11-20 11:46:11,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:46:11,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:46:12,201 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2061) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 11:46:12,208 INFO L158 Benchmark]: Toolchain (without parser) took 978.40ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 61.5MB in the end (delta: 24.0MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2022-11-20 11:46:12,209 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 138.4MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:46:12,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 971.05ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 61.5MB in the end (delta: 24.0MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2022-11-20 11:46:12,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 138.4MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 971.05ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 61.5MB in the end (delta: 24.0MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:46:14,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:46:14,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:46:14,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:46:14,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:46:14,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:46:14,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:46:14,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:46:14,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:46:14,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:46:14,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:46:14,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:46:14,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:46:14,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:46:14,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:46:14,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:46:14,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:46:14,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:46:14,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:46:14,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:46:14,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:46:14,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:46:14,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:46:14,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:46:14,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:46:14,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:46:14,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:46:14,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:46:14,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:46:14,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:46:14,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:46:14,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:46:14,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:46:14,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:46:14,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:46:14,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:46:14,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:46:14,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:46:14,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:46:14,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:46:14,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:46:14,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 11:46:14,956 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:46:14,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:46:14,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:46:14,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:46:14,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:46:14,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:46:14,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:46:14,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:46:14,961 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:46:14,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:46:14,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:46:14,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:46:14,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:46:14,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:46:14,964 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:46:14,964 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:46:14,964 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:46:14,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:46:14,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:46:14,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:46:14,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:46:14,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:46:14,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:46:14,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:46:14,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:46:14,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:46:14,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:46:14,967 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:46:14,968 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:46:14,968 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:46:14,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:46:14,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:46:14,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:46:14,969 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54849713272284bcfc1d249b79bdfa502d33e8d1537f459c00022c26afd8a94c [2022-11-20 11:46:15,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:46:15,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:46:15,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:46:15,405 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:46:15,405 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:46:15,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-20 11:46:18,498 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:46:19,470 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:46:19,471 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-20 11:46:19,539 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/data/c316e1a50/06d929c59a6348c5aefdeb9e29ca76e0/FLAGfc12dcf6b [2022-11-20 11:46:19,571 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/data/c316e1a50/06d929c59a6348c5aefdeb9e29ca76e0 [2022-11-20 11:46:19,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:46:19,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:46:19,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:46:19,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:46:19,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:46:19,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:46:19" (1/1) ... [2022-11-20 11:46:19,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7334dbbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:19, skipping insertion in model container [2022-11-20 11:46:19,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:46:19" (1/1) ... [2022-11-20 11:46:19,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:46:19,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:46:26,211 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-11-20 11:46:26,215 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-11-20 11:46:26,216 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-11-20 11:46:26,217 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-11-20 11:46:26,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:46:26,309 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 11:46:26,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:46:26,992 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-11-20 11:46:26,993 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-11-20 11:46:26,994 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-11-20 11:46:26,994 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-11-20 11:46:27,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:46:27,067 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:46:27,850 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508632,508645] [2022-11-20 11:46:27,850 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508801,508814] [2022-11-20 11:46:27,851 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[508968,508981] [2022-11-20 11:46:27,852 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_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[509136,509149] [2022-11-20 11:46:27,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:46:28,280 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:46:28,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28 WrapperNode [2022-11-20 11:46:28,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:46:28,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:46:28,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:46:28,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:46:28,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:28,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:28,753 INFO L138 Inliner]: procedures = 693, calls = 4011, calls flagged for inlining = 356, calls inlined = 330, statements flattened = 9645 [2022-11-20 11:46:28,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:46:28,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:46:28,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:46:28,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:46:28,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:28,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:28,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:28,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:29,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:29,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:29,333 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:29,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:29,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:46:29,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:46:29,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:46:29,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:46:29,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (1/1) ... [2022-11-20 11:46:29,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:46:29,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:46:29,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:46:29,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:46:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_93 [2022-11-20 11:46:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_93 [2022-11-20 11:46:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-20 11:46:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-20 11:46:29,510 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-20 11:46:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-20 11:46:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-11-20 11:46:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-11-20 11:46:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-20 11:46:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-20 11:46:29,511 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-11-20 11:46:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-11-20 11:46:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 11:46:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 11:46:29,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-20 11:46:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-20 11:46:29,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2022-11-20 11:46:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2022-11-20 11:46:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-20 11:46:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-20 11:46:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 11:46:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 11:46:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-11-20 11:46:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-11-20 11:46:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:46:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-20 11:46:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-20 11:46:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-20 11:46:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 11:46:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 11:46:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-20 11:46:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-20 11:46:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-11-20 11:46:29,517 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-11-20 11:46:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 11:46:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 11:46:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 11:46:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2022-11-20 11:46:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-11-20 11:46:29,518 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-11-20 11:46:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-11-20 11:46:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-11-20 11:46:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-11-20 11:46:29,519 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-11-20 11:46:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-20 11:46:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-20 11:46:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-20 11:46:29,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-20 11:46:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-20 11:46:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-20 11:46:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-20 11:46:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-20 11:46:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-20 11:46:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-20 11:46:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-20 11:46:29,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-20 11:46:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 11:46:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 11:46:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 11:46:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 11:46:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-20 11:46:29,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-20 11:46:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:46:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-20 11:46:29,523 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-20 11:46:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-11-20 11:46:29,523 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-11-20 11:46:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-20 11:46:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:46:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:46:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 11:46:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-11-20 11:46:29,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-11-20 11:46:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-20 11:46:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-20 11:46:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-11-20 11:46:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-11-20 11:46:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-20 11:46:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-20 11:46:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-11-20 11:46:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-11-20 11:46:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-11-20 11:46:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-11-20 11:46:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-11-20 11:46:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-11-20 11:46:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-11-20 11:46:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-11-20 11:46:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 11:46:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 11:46:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 11:46:29,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 11:46:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-11-20 11:46:29,528 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-11-20 11:46:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-20 11:46:29,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-20 11:46:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 11:46:29,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~C_ULONG~X~C_INT~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-20 11:46:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 11:46:29,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 11:46:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 11:46:29,530 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 11:46:29,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-20 11:46:29,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-20 11:46:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-20 11:46:29,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-20 11:46:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-20 11:46:29,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-20 11:46:29,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-20 11:46:29,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-20 11:46:29,538 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 11:46:29,538 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 11:46:29,538 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-11-20 11:46:29,543 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-11-20 11:46:29,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:46:29,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-20 11:46:29,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:46:29,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:46:29,543 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-20 11:46:29,543 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-20 11:46:29,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-20 11:46:29,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-20 11:46:29,544 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 11:46:29,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 11:46:29,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:46:29,544 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-11-20 11:46:29,544 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-11-20 11:46:29,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-20 11:46:29,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-20 11:46:29,545 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-20 11:46:29,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 11:46:29,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 11:46:29,545 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:46:29,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 11:46:29,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 11:46:29,545 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-20 11:46:29,545 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-20 11:46:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-20 11:46:29,546 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-20 11:46:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 11:46:29,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~C_ULONG~X~C_INT~X~$Pointer$~TO~VOID [2022-11-20 11:46:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-11-20 11:46:29,546 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-11-20 11:46:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-11-20 11:46:29,546 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-11-20 11:46:29,547 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-20 11:46:29,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-20 11:46:29,547 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-20 11:46:29,547 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-20 11:46:29,547 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 11:46:29,547 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 11:46:29,547 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-11-20 11:46:29,547 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-11-20 11:46:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-20 11:46:29,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-20 11:46:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-11-20 11:46:29,548 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-11-20 11:46:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-11-20 11:46:29,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-11-20 11:46:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-11-20 11:46:29,548 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-11-20 11:46:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-11-20 11:46:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-11-20 11:46:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-11-20 11:46:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-11-20 11:46:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-20 11:46:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-20 11:46:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-20 11:46:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-20 11:46:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 11:46:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-11-20 11:46:29,550 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-11-20 11:46:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-11-20 11:46:29,550 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-11-20 11:46:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-11-20 11:46:29,550 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-11-20 11:46:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-11-20 11:46:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-11-20 11:46:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:46:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:46:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-20 11:46:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-20 11:46:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-20 11:46:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-20 11:46:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 11:46:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 11:46:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 11:46:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 11:46:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:46:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 11:46:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-20 11:46:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 11:46:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 11:46:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 11:46:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:46:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-20 11:46:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-20 11:46:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-20 11:46:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-20 11:46:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-11-20 11:46:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-11-20 11:46:29,554 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-11-20 11:46:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-20 11:46:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-20 11:46:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-20 11:46:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-20 11:46:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-11-20 11:46:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-11-20 11:46:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-11-20 11:46:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-11-20 11:46:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 11:46:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 11:46:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-20 11:46:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-20 11:46:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-20 11:46:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-20 11:46:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-11-20 11:46:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-11-20 11:46:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-11-20 11:46:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-11-20 11:46:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-20 11:46:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-20 11:46:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 11:46:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 11:46:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-11-20 11:46:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-11-20 11:46:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-20 11:46:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-20 11:46:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-11-20 11:46:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-11-20 11:46:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-20 11:46:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-20 11:46:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-20 11:46:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-20 11:46:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:46:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-20 11:46:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-20 11:46:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-11-20 11:46:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-11-20 11:46:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-11-20 11:46:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-11-20 11:46:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-20 11:46:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-20 11:46:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:46:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-11-20 11:46:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-11-20 11:46:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-20 11:46:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-20 11:46:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 11:46:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 11:46:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-11-20 11:46:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-11-20 11:46:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-20 11:46:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:46:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 11:46:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-20 11:46:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-20 11:46:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-11-20 11:46:29,569 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-11-20 11:46:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-20 11:46:29,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-20 11:46:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-20 11:46:29,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-20 11:46:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-11-20 11:46:29,570 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-11-20 11:46:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-20 11:46:29,570 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-20 11:46:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-20 11:46:29,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-20 11:46:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 11:46:29,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 11:46:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-11-20 11:46:29,571 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-11-20 11:46:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-20 11:46:29,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-20 11:46:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_85 [2022-11-20 11:46:29,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_85 [2022-11-20 11:46:29,571 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-11-20 11:46:29,572 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-11-20 11:46:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-11-20 11:46:29,572 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-11-20 11:46:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-11-20 11:46:29,572 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-11-20 11:46:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-20 11:46:29,572 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-20 11:46:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-20 11:46:29,572 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-20 11:46:29,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-20 11:46:29,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-20 11:46:29,573 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-20 11:46:29,573 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-20 11:46:29,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:46:29,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-20 11:46:29,573 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-11-20 11:46:29,573 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-11-20 11:46:29,573 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-20 11:46:29,573 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-20 11:46:29,573 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-11-20 11:46:29,573 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-11-20 11:46:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-11-20 11:46:29,574 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-11-20 11:46:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-20 11:46:29,574 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-20 11:46:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-20 11:46:29,574 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-20 11:46:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-11-20 11:46:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-11-20 11:46:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-11-20 11:46:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-11-20 11:46:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 11:46:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 11:46:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 11:46:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 11:46:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 11:46:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 11:46:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2022-11-20 11:46:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2022-11-20 11:46:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-20 11:46:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-20 11:46:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-20 11:46:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-20 11:46:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-11-20 11:46:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-11-20 11:46:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-20 11:46:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-20 11:46:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-11-20 11:46:29,578 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-11-20 11:46:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-11-20 11:46:29,578 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-11-20 11:46:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-20 11:46:29,578 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-20 11:46:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-11-20 11:46:29,578 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-11-20 11:46:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-20 11:46:29,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-20 11:46:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-20 11:46:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-20 11:46:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-11-20 11:46:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-11-20 11:46:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-11-20 11:46:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-11-20 11:46:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-20 11:46:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-20 11:46:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-20 11:46:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-20 11:46:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-20 11:46:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-20 11:46:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-11-20 11:46:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-11-20 11:46:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-20 11:46:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-20 11:46:31,208 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:46:31,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:46:32,289 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 11:47:39,039 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:47:39,077 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:47:39,078 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:47:39,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:39 BoogieIcfgContainer [2022-11-20 11:47:39,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:47:39,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:47:39,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:47:39,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:47:39,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:46:19" (1/3) ... [2022-11-20 11:47:39,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f71d7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:47:39, skipping insertion in model container [2022-11-20 11:47:39,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:28" (2/3) ... [2022-11-20 11:47:39,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f71d7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:47:39, skipping insertion in model container [2022-11-20 11:47:39,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:47:39" (3/3) ... [2022-11-20 11:47:39,097 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-20 11:47:39,120 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:47:39,121 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 11:47:39,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:47:39,276 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;@4947575f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:47:39,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 11:47:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 3702 states, 2458 states have (on average 1.2453213995117982) internal successors, (3061), 2513 states have internal predecessors, (3061), 1081 states have call successors, (1081), 159 states have call predecessors, (1081), 158 states have return successors, (1074), 1065 states have call predecessors, (1074), 1074 states have call successors, (1074) [2022-11-20 11:47:39,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-20 11:47:39,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:39,314 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-20 11:47:39,315 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:47:39,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2116441956, now seen corresponding path program 1 times [2022-11-20 11:47:39,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:47:39,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419053893] [2022-11-20 11:47:39,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:39,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:47:39,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:47:39,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:47:39,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 11:47:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:41,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:47:41,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:47:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:47:42,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:47:42,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:47:42,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419053893] [2022-11-20 11:47:42,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419053893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:47:42,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:47:42,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:47:42,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001874121] [2022-11-20 11:47:42,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:42,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:47:42,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:47:42,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:47:42,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:47:42,632 INFO L87 Difference]: Start difference. First operand has 3702 states, 2458 states have (on average 1.2453213995117982) internal successors, (3061), 2513 states have internal predecessors, (3061), 1081 states have call successors, (1081), 159 states have call predecessors, (1081), 158 states have return successors, (1074), 1065 states have call predecessors, (1074), 1074 states have call successors, (1074) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 11:47:43,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:43,759 INFO L93 Difference]: Finished difference Result 7377 states and 10517 transitions. [2022-11-20 11:47:43,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:47:43,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 48 [2022-11-20 11:47:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:43,815 INFO L225 Difference]: With dead ends: 7377 [2022-11-20 11:47:43,815 INFO L226 Difference]: Without dead ends: 3687 [2022-11-20 11:47:43,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:47:43,856 INFO L413 NwaCegarLoop]: 5192 mSDtfsCounter, 5166 mSDsluCounter, 10368 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5167 SdHoareTripleChecker+Valid, 15560 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:43,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5167 Valid, 15560 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:47:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2022-11-20 11:47:44,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3687. [2022-11-20 11:47:44,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 2451 states have (on average 1.237454100367197) internal successors, (3033), 2502 states have internal predecessors, (3033), 1074 states have call successors, (1074), 159 states have call predecessors, (1074), 158 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-11-20 11:47:44,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5178 transitions. [2022-11-20 11:47:44,408 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5178 transitions. Word has length 48 [2022-11-20 11:47:44,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:44,409 INFO L495 AbstractCegarLoop]: Abstraction has 3687 states and 5178 transitions. [2022-11-20 11:47:44,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-20 11:47:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5178 transitions. [2022-11-20 11:47:44,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 11:47:44,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:44,412 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-20 11:47:44,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:44,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:47:44,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:47:44,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:44,640 INFO L85 PathProgramCache]: Analyzing trace with hash 568104844, now seen corresponding path program 1 times [2022-11-20 11:47:44,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:47:44,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799633762] [2022-11-20 11:47:44,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:44,643 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:47:44,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:47:44,646 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:47:44,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 11:47:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:46,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:47:46,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:47:47,506 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:47:47,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:47:47,968 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-20 11:47:47,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:47:47,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799633762] [2022-11-20 11:47:47,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799633762] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:47:47,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:47:47,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:47:47,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22831223] [2022-11-20 11:47:47,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:47,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:47:47,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:47:47,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:47:47,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:47:47,972 INFO L87 Difference]: Start difference. First operand 3687 states and 5178 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 11:47:48,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:48,785 INFO L93 Difference]: Finished difference Result 3693 states and 5183 transitions. [2022-11-20 11:47:48,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:47:48,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2022-11-20 11:47:48,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:48,817 INFO L225 Difference]: With dead ends: 3693 [2022-11-20 11:47:48,817 INFO L226 Difference]: Without dead ends: 3691 [2022-11-20 11:47:48,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:47:48,822 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5157 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:48,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5157 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:47:48,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3691 states. [2022-11-20 11:47:49,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3691 to 3691. [2022-11-20 11:47:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3691 states, 2454 states have (on average 1.2371638141809291) internal successors, (3036), 2505 states have internal predecessors, (3036), 1074 states have call successors, (1074), 160 states have call predecessors, (1074), 159 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-11-20 11:47:49,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3691 states to 3691 states and 5181 transitions. [2022-11-20 11:47:49,244 INFO L78 Accepts]: Start accepts. Automaton has 3691 states and 5181 transitions. Word has length 53 [2022-11-20 11:47:49,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:49,245 INFO L495 AbstractCegarLoop]: Abstraction has 3691 states and 5181 transitions. [2022-11-20 11:47:49,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-20 11:47:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3691 states and 5181 transitions. [2022-11-20 11:47:49,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-20 11:47:49,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:49,257 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-20 11:47:49,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-20 11:47:49,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:47:49,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:47:49,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:49,483 INFO L85 PathProgramCache]: Analyzing trace with hash -630372316, now seen corresponding path program 1 times [2022-11-20 11:47:49,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:47:49,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542731687] [2022-11-20 11:47:49,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:49,493 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:47:49,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:47:49,497 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:47:49,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 11:47:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:51,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:47:51,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:47:52,509 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 11:47:52,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:47:52,927 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-20 11:47:52,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:47:52,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542731687] [2022-11-20 11:47:52,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542731687] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:47:52,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:47:52,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:47:52,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044021554] [2022-11-20 11:47:52,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:52,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:47:52,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:47:52,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:47:52,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:47:52,930 INFO L87 Difference]: Start difference. First operand 3691 states and 5181 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 11:47:53,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:53,734 INFO L93 Difference]: Finished difference Result 3697 states and 5186 transitions. [2022-11-20 11:47:53,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:47:53,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2022-11-20 11:47:53,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:53,769 INFO L225 Difference]: With dead ends: 3697 [2022-11-20 11:47:53,769 INFO L226 Difference]: Without dead ends: 3695 [2022-11-20 11:47:53,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:47:53,777 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5156 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:53,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5156 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:47:53,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2022-11-20 11:47:54,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3695. [2022-11-20 11:47:54,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2457 states have (on average 1.236874236874237) internal successors, (3039), 2508 states have internal predecessors, (3039), 1074 states have call successors, (1074), 161 states have call predecessors, (1074), 160 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-11-20 11:47:54,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5184 transitions. [2022-11-20 11:47:54,212 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5184 transitions. Word has length 58 [2022-11-20 11:47:54,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:54,213 INFO L495 AbstractCegarLoop]: Abstraction has 3695 states and 5184 transitions. [2022-11-20 11:47:54,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-20 11:47:54,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5184 transitions. [2022-11-20 11:47:54,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-20 11:47:54,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:54,219 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 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] [2022-11-20 11:47:54,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:54,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:47:54,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:47:54,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:54,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1414024780, now seen corresponding path program 1 times [2022-11-20 11:47:54,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:47:54,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978348186] [2022-11-20 11:47:54,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:54,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:47:54,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:47:54,441 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:47:54,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 11:47:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:47:56,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:47:56,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:47:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:47:57,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:47:57,766 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-20 11:47:57,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:47:57,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978348186] [2022-11-20 11:47:57,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978348186] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:47:57,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:47:57,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:47:57,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116075879] [2022-11-20 11:47:57,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:47:57,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:47:57,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:47:57,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:47:57,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:47:57,768 INFO L87 Difference]: Start difference. First operand 3695 states and 5184 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 11:47:58,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:47:58,621 INFO L93 Difference]: Finished difference Result 3701 states and 5189 transitions. [2022-11-20 11:47:58,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:47:58,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2022-11-20 11:47:58,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:47:58,656 INFO L225 Difference]: With dead ends: 3701 [2022-11-20 11:47:58,656 INFO L226 Difference]: Without dead ends: 3699 [2022-11-20 11:47:58,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:47:58,662 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5155 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:47:58,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5155 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:47:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2022-11-20 11:47:59,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3699. [2022-11-20 11:47:59,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 2460 states have (on average 1.2365853658536585) internal successors, (3042), 2511 states have internal predecessors, (3042), 1074 states have call successors, (1074), 162 states have call predecessors, (1074), 161 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-11-20 11:47:59,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 5187 transitions. [2022-11-20 11:47:59,112 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 5187 transitions. Word has length 63 [2022-11-20 11:47:59,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:47:59,112 INFO L495 AbstractCegarLoop]: Abstraction has 3699 states and 5187 transitions. [2022-11-20 11:47:59,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 11:47:59,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 5187 transitions. [2022-11-20 11:47:59,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-20 11:47:59,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:47:59,115 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 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] [2022-11-20 11:47:59,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:47:59,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:47:59,330 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:47:59,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:47:59,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1287649508, now seen corresponding path program 1 times [2022-11-20 11:47:59,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:47:59,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723510589] [2022-11-20 11:47:59,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:47:59,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:47:59,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:47:59,336 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:47:59,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 11:48:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:01,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:48:01,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:48:02,116 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-20 11:48:02,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:48:02,557 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-20 11:48:02,557 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:48:02,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723510589] [2022-11-20 11:48:02,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723510589] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:48:02,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:48:02,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:48:02,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435498196] [2022-11-20 11:48:02,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:02,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:48:02,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:48:02,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:48:02,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:48:02,560 INFO L87 Difference]: Start difference. First operand 3699 states and 5187 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 11:48:03,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:03,392 INFO L93 Difference]: Finished difference Result 3705 states and 5192 transitions. [2022-11-20 11:48:03,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:03,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2022-11-20 11:48:03,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:03,421 INFO L225 Difference]: With dead ends: 3705 [2022-11-20 11:48:03,421 INFO L226 Difference]: Without dead ends: 3703 [2022-11-20 11:48:03,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:48:03,426 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:03,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5154 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:03,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3703 states. [2022-11-20 11:48:03,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3703 to 3703. [2022-11-20 11:48:03,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3703 states, 2463 states have (on average 1.236297198538368) internal successors, (3045), 2514 states have internal predecessors, (3045), 1074 states have call successors, (1074), 163 states have call predecessors, (1074), 162 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-11-20 11:48:03,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3703 states to 3703 states and 5190 transitions. [2022-11-20 11:48:03,961 INFO L78 Accepts]: Start accepts. Automaton has 3703 states and 5190 transitions. Word has length 68 [2022-11-20 11:48:03,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:03,961 INFO L495 AbstractCegarLoop]: Abstraction has 3703 states and 5190 transitions. [2022-11-20 11:48:03,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-20 11:48:03,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3703 states and 5190 transitions. [2022-11-20 11:48:03,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-20 11:48:03,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:03,963 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 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] [2022-11-20 11:48:04,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:48:04,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:04,181 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:48:04,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:04,182 INFO L85 PathProgramCache]: Analyzing trace with hash 570443020, now seen corresponding path program 1 times [2022-11-20 11:48:04,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:48:04,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736939302] [2022-11-20 11:48:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:04,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:04,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:48:04,186 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:48:04,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 11:48:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:06,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:48:06,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:48:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 11:48:07,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:48:07,690 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 11:48:07,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:48:07,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736939302] [2022-11-20 11:48:07,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736939302] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:48:07,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:48:07,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:48:07,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345369933] [2022-11-20 11:48:07,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:07,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:48:07,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:48:07,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:48:07,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:48:07,692 INFO L87 Difference]: Start difference. First operand 3703 states and 5190 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:48:08,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:08,486 INFO L93 Difference]: Finished difference Result 3709 states and 5195 transitions. [2022-11-20 11:48:08,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:08,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 73 [2022-11-20 11:48:08,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:08,512 INFO L225 Difference]: With dead ends: 3709 [2022-11-20 11:48:08,512 INFO L226 Difference]: Without dead ends: 3707 [2022-11-20 11:48:08,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:48:08,517 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5153 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:08,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5153 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:48:08,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2022-11-20 11:48:09,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3707. [2022-11-20 11:48:09,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3707 states, 2466 states have (on average 1.2360097323600974) internal successors, (3048), 2517 states have internal predecessors, (3048), 1074 states have call successors, (1074), 164 states have call predecessors, (1074), 163 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-11-20 11:48:09,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 5193 transitions. [2022-11-20 11:48:09,074 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 5193 transitions. Word has length 73 [2022-11-20 11:48:09,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:09,075 INFO L495 AbstractCegarLoop]: Abstraction has 3707 states and 5193 transitions. [2022-11-20 11:48:09,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 11:48:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 5193 transitions. [2022-11-20 11:48:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 11:48:09,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:09,077 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 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] [2022-11-20 11:48:09,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:48:09,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:09,298 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:48:09,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:09,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1989252700, now seen corresponding path program 1 times [2022-11-20 11:48:09,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:48:09,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016842734] [2022-11-20 11:48:09,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:09,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:09,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:48:09,301 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:48:09,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 11:48:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:11,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:48:11,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:48:12,164 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-20 11:48:12,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:48:12,585 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-20 11:48:12,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:48:12,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016842734] [2022-11-20 11:48:12,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016842734] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:48:12,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:48:12,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:48:12,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543448413] [2022-11-20 11:48:12,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:12,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:48:12,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:48:12,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:48:12,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:48:12,588 INFO L87 Difference]: Start difference. First operand 3707 states and 5193 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 11:48:13,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:13,446 INFO L93 Difference]: Finished difference Result 3713 states and 5198 transitions. [2022-11-20 11:48:13,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:13,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 78 [2022-11-20 11:48:13,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:13,469 INFO L225 Difference]: With dead ends: 3713 [2022-11-20 11:48:13,469 INFO L226 Difference]: Without dead ends: 3711 [2022-11-20 11:48:13,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:48:13,472 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5152 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:13,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5152 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:13,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2022-11-20 11:48:13,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3711. [2022-11-20 11:48:13,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3711 states, 2469 states have (on average 1.2357229647630619) internal successors, (3051), 2520 states have internal predecessors, (3051), 1074 states have call successors, (1074), 165 states have call predecessors, (1074), 164 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-11-20 11:48:13,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3711 states to 3711 states and 5196 transitions. [2022-11-20 11:48:13,978 INFO L78 Accepts]: Start accepts. Automaton has 3711 states and 5196 transitions. Word has length 78 [2022-11-20 11:48:13,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:13,978 INFO L495 AbstractCegarLoop]: Abstraction has 3711 states and 5196 transitions. [2022-11-20 11:48:13,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 11:48:13,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3711 states and 5196 transitions. [2022-11-20 11:48:13,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-20 11:48:13,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:13,981 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 3, 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] [2022-11-20 11:48:14,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:48:14,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:14,206 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:48:14,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:14,207 INFO L85 PathProgramCache]: Analyzing trace with hash 146045900, now seen corresponding path program 1 times [2022-11-20 11:48:14,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:48:14,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869089885] [2022-11-20 11:48:14,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:14,209 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:14,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:48:14,211 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:48:14,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 11:48:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:16,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:48:16,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:48:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-20 11:48:17,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:48:17,786 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-20 11:48:17,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:48:17,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869089885] [2022-11-20 11:48:17,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869089885] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:48:17,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:48:17,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:48:17,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483108235] [2022-11-20 11:48:17,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:17,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:48:17,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:48:17,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:48:17,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:48:17,789 INFO L87 Difference]: Start difference. First operand 3711 states and 5196 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 11:48:18,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:18,750 INFO L93 Difference]: Finished difference Result 3717 states and 5201 transitions. [2022-11-20 11:48:18,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:18,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 83 [2022-11-20 11:48:18,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:18,770 INFO L225 Difference]: With dead ends: 3717 [2022-11-20 11:48:18,771 INFO L226 Difference]: Without dead ends: 3715 [2022-11-20 11:48:18,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:48:18,775 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5151 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:18,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5151 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:18,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3715 states. [2022-11-20 11:48:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3715 to 3715. [2022-11-20 11:48:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3715 states, 2472 states have (on average 1.2354368932038835) internal successors, (3054), 2523 states have internal predecessors, (3054), 1074 states have call successors, (1074), 166 states have call predecessors, (1074), 165 states have return successors, (1071), 1062 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-11-20 11:48:19,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3715 states to 3715 states and 5199 transitions. [2022-11-20 11:48:19,393 INFO L78 Accepts]: Start accepts. Automaton has 3715 states and 5199 transitions. Word has length 83 [2022-11-20 11:48:19,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:19,394 INFO L495 AbstractCegarLoop]: Abstraction has 3715 states and 5199 transitions. [2022-11-20 11:48:19,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-20 11:48:19,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3715 states and 5199 transitions. [2022-11-20 11:48:19,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-20 11:48:19,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:19,396 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 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] [2022-11-20 11:48:19,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:48:19,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:19,610 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:48:19,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:19,611 INFO L85 PathProgramCache]: Analyzing trace with hash 550017636, now seen corresponding path program 1 times [2022-11-20 11:48:19,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:48:19,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834765216] [2022-11-20 11:48:19,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:19,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:19,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:48:19,613 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:48:19,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-20 11:48:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:21,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:48:21,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:48:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-20 11:48:22,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:48:23,090 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-20 11:48:23,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:48:23,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834765216] [2022-11-20 11:48:23,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834765216] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:48:23,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:48:23,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:48:23,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952798334] [2022-11-20 11:48:23,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:23,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:48:23,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:48:23,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:48:23,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:48:23,093 INFO L87 Difference]: Start difference. First operand 3715 states and 5199 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 11:48:24,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:24,183 INFO L93 Difference]: Finished difference Result 3892 states and 5427 transitions. [2022-11-20 11:48:24,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:24,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2022-11-20 11:48:24,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:24,201 INFO L225 Difference]: With dead ends: 3892 [2022-11-20 11:48:24,201 INFO L226 Difference]: Without dead ends: 3890 [2022-11-20 11:48:24,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:48:24,205 INFO L413 NwaCegarLoop]: 5326 mSDtfsCounter, 5052 mSDsluCounter, 10941 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5059 SdHoareTripleChecker+Valid, 16267 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:24,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5059 Valid, 16267 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:24,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3890 states. [2022-11-20 11:48:24,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3890 to 3888. [2022-11-20 11:48:24,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 2596 states have (on average 1.2384437596302003) internal successors, (3215), 2648 states have internal predecessors, (3215), 1106 states have call successors, (1106), 183 states have call predecessors, (1106), 182 states have return successors, (1103), 1094 states have call predecessors, (1103), 1103 states have call successors, (1103) [2022-11-20 11:48:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 5424 transitions. [2022-11-20 11:48:24,848 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 5424 transitions. Word has length 88 [2022-11-20 11:48:24,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:24,849 INFO L495 AbstractCegarLoop]: Abstraction has 3888 states and 5424 transitions. [2022-11-20 11:48:24,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-20 11:48:24,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 5424 transitions. [2022-11-20 11:48:24,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-20 11:48:24,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:24,852 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:48:24,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:48:25,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:25,074 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:48:25,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:25,075 INFO L85 PathProgramCache]: Analyzing trace with hash 877376669, now seen corresponding path program 1 times [2022-11-20 11:48:25,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:48:25,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895954273] [2022-11-20 11:48:25,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:25,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:25,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:48:25,078 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:48:25,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 11:48:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:27,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 11:48:27,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:48:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-11-20 11:48:28,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:48:29,717 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-20 11:48:29,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:48:29,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895954273] [2022-11-20 11:48:29,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895954273] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:48:29,718 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:48:29,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 18 [2022-11-20 11:48:29,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749746720] [2022-11-20 11:48:29,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:48:29,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 11:48:29,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:48:29,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 11:48:29,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-11-20 11:48:29,720 INFO L87 Difference]: Start difference. First operand 3888 states and 5424 transitions. Second operand has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) [2022-11-20 11:48:36,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:36,092 INFO L93 Difference]: Finished difference Result 6383 states and 8834 transitions. [2022-11-20 11:48:36,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 11:48:36,093 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) Word has length 106 [2022-11-20 11:48:36,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:36,112 INFO L225 Difference]: With dead ends: 6383 [2022-11-20 11:48:36,112 INFO L226 Difference]: Without dead ends: 3902 [2022-11-20 11:48:36,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2022-11-20 11:48:36,123 INFO L413 NwaCegarLoop]: 5135 mSDtfsCounter, 56 mSDsluCounter, 82001 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 87136 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:36,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 87136 Invalid, 895 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [25 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-20 11:48:36,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2022-11-20 11:48:36,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3898. [2022-11-20 11:48:36,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3898 states, 2604 states have (on average 1.237711213517665) internal successors, (3223), 2656 states have internal predecessors, (3223), 1108 states have call successors, (1108), 183 states have call predecessors, (1108), 182 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-11-20 11:48:36,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 5436 transitions. [2022-11-20 11:48:36,734 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 5436 transitions. Word has length 106 [2022-11-20 11:48:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:36,735 INFO L495 AbstractCegarLoop]: Abstraction has 3898 states and 5436 transitions. [2022-11-20 11:48:36,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (28), 7 states have call predecessors, (28), 6 states have call successors, (28) [2022-11-20 11:48:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 5436 transitions. [2022-11-20 11:48:36,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-20 11:48:36,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:36,738 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 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] [2022-11-20 11:48:36,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:48:36,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:36,954 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:48:36,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:36,955 INFO L85 PathProgramCache]: Analyzing trace with hash 706015884, now seen corresponding path program 1 times [2022-11-20 11:48:36,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:48:36,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [733830300] [2022-11-20 11:48:36,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:36,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:36,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:48:36,958 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:48:37,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-20 11:48:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:39,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:48:39,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:48:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-20 11:48:39,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:48:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-11-20 11:48:40,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:48:40,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [733830300] [2022-11-20 11:48:40,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [733830300] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:48:40,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:48:40,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:48:40,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511949835] [2022-11-20 11:48:40,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:40,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:48:40,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:48:40,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:48:40,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:48:40,446 INFO L87 Difference]: Start difference. First operand 3898 states and 5436 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 11:48:41,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:41,298 INFO L93 Difference]: Finished difference Result 3904 states and 5441 transitions. [2022-11-20 11:48:41,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:41,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 93 [2022-11-20 11:48:41,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:41,316 INFO L225 Difference]: With dead ends: 3904 [2022-11-20 11:48:41,316 INFO L226 Difference]: Without dead ends: 3902 [2022-11-20 11:48:41,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:48:41,320 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5149 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:41,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5149 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:41,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2022-11-20 11:48:42,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3902. [2022-11-20 11:48:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3902 states, 2607 states have (on average 1.2374376678174146) internal successors, (3226), 2659 states have internal predecessors, (3226), 1108 states have call successors, (1108), 184 states have call predecessors, (1108), 183 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-11-20 11:48:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3902 states to 3902 states and 5439 transitions. [2022-11-20 11:48:42,058 INFO L78 Accepts]: Start accepts. Automaton has 3902 states and 5439 transitions. Word has length 93 [2022-11-20 11:48:42,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:42,061 INFO L495 AbstractCegarLoop]: Abstraction has 3902 states and 5439 transitions. [2022-11-20 11:48:42,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-20 11:48:42,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3902 states and 5439 transitions. [2022-11-20 11:48:42,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-20 11:48:42,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:42,066 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 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] [2022-11-20 11:48:42,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:48:42,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:42,282 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:48:42,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:42,282 INFO L85 PathProgramCache]: Analyzing trace with hash 2132708132, now seen corresponding path program 1 times [2022-11-20 11:48:42,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:48:42,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819843301] [2022-11-20 11:48:42,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:42,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:42,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:48:42,284 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:48:42,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-20 11:48:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:44,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:48:44,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:48:45,134 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-20 11:48:45,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:48:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-20 11:48:45,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:48:45,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819843301] [2022-11-20 11:48:45,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819843301] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:48:45,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:48:45,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:48:45,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380901914] [2022-11-20 11:48:45,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:45,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:48:45,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:48:45,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:48:45,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:48:45,592 INFO L87 Difference]: Start difference. First operand 3902 states and 5439 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:48:46,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:46,326 INFO L93 Difference]: Finished difference Result 3908 states and 5444 transitions. [2022-11-20 11:48:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:46,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2022-11-20 11:48:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:46,340 INFO L225 Difference]: With dead ends: 3908 [2022-11-20 11:48:46,341 INFO L226 Difference]: Without dead ends: 3906 [2022-11-20 11:48:46,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:48:46,343 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:46,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5148 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:46,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2022-11-20 11:48:47,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 3906. [2022-11-20 11:48:47,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3906 states, 2610 states have (on average 1.2371647509578545) internal successors, (3229), 2662 states have internal predecessors, (3229), 1108 states have call successors, (1108), 185 states have call predecessors, (1108), 184 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-11-20 11:48:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3906 states to 3906 states and 5442 transitions. [2022-11-20 11:48:47,087 INFO L78 Accepts]: Start accepts. Automaton has 3906 states and 5442 transitions. Word has length 98 [2022-11-20 11:48:47,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:47,087 INFO L495 AbstractCegarLoop]: Abstraction has 3906 states and 5442 transitions. [2022-11-20 11:48:47,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 11:48:47,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3906 states and 5442 transitions. [2022-11-20 11:48:47,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-20 11:48:47,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:47,090 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 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] [2022-11-20 11:48:47,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:48:47,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:47,314 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:48:47,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:47,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1272031564, now seen corresponding path program 1 times [2022-11-20 11:48:47,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:48:47,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614726371] [2022-11-20 11:48:47,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:47,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:47,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:48:47,319 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:48:47,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-20 11:48:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:49,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:48:49,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:48:50,242 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:48:50,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:48:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-20 11:48:50,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:48:50,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614726371] [2022-11-20 11:48:50,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614726371] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:48:50,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:48:50,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:48:50,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878227486] [2022-11-20 11:48:50,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:50,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:48:50,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:48:50,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:48:50,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:48:50,718 INFO L87 Difference]: Start difference. First operand 3906 states and 5442 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:48:51,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:51,612 INFO L93 Difference]: Finished difference Result 3912 states and 5447 transitions. [2022-11-20 11:48:51,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:51,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 103 [2022-11-20 11:48:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:51,631 INFO L225 Difference]: With dead ends: 3912 [2022-11-20 11:48:51,631 INFO L226 Difference]: Without dead ends: 3910 [2022-11-20 11:48:51,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:48:51,634 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5147 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:51,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5147 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:51,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2022-11-20 11:48:52,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 3910. [2022-11-20 11:48:52,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 2613 states have (on average 1.2368924607730578) internal successors, (3232), 2665 states have internal predecessors, (3232), 1108 states have call successors, (1108), 186 states have call predecessors, (1108), 185 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-11-20 11:48:52,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5445 transitions. [2022-11-20 11:48:52,623 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5445 transitions. Word has length 103 [2022-11-20 11:48:52,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:52,624 INFO L495 AbstractCegarLoop]: Abstraction has 3910 states and 5445 transitions. [2022-11-20 11:48:52,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-20 11:48:52,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5445 transitions. [2022-11-20 11:48:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-20 11:48:52,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:52,626 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 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] [2022-11-20 11:48:52,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-20 11:48:52,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:52,850 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:48:52,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:52,851 INFO L85 PathProgramCache]: Analyzing trace with hash -322946076, now seen corresponding path program 1 times [2022-11-20 11:48:52,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:48:52,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408624297] [2022-11-20 11:48:52,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:52,853 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:52,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:48:52,855 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:48:52,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-20 11:48:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:48:54,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:48:54,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:48:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-11-20 11:48:55,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:48:56,479 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-11-20 11:48:56,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:48:56,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408624297] [2022-11-20 11:48:56,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408624297] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:48:56,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:48:56,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:48:56,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394174935] [2022-11-20 11:48:56,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:48:56,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:48:56,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:48:56,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:48:56,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:48:56,482 INFO L87 Difference]: Start difference. First operand 3910 states and 5445 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-11-20 11:48:57,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:48:57,386 INFO L93 Difference]: Finished difference Result 3916 states and 5450 transitions. [2022-11-20 11:48:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:48:57,387 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 108 [2022-11-20 11:48:57,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:48:57,410 INFO L225 Difference]: With dead ends: 3916 [2022-11-20 11:48:57,410 INFO L226 Difference]: Without dead ends: 3914 [2022-11-20 11:48:57,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:48:57,415 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5146 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:48:57,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5146 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:48:57,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2022-11-20 11:48:58,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3914. [2022-11-20 11:48:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3914 states, 2616 states have (on average 1.2366207951070336) internal successors, (3235), 2668 states have internal predecessors, (3235), 1108 states have call successors, (1108), 187 states have call predecessors, (1108), 186 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-11-20 11:48:58,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 5448 transitions. [2022-11-20 11:48:58,311 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 5448 transitions. Word has length 108 [2022-11-20 11:48:58,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:48:58,312 INFO L495 AbstractCegarLoop]: Abstraction has 3914 states and 5448 transitions. [2022-11-20 11:48:58,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-11-20 11:48:58,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 5448 transitions. [2022-11-20 11:48:58,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-20 11:48:58,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:48:58,316 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 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] [2022-11-20 11:48:58,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:48:58,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:58,538 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:48:58,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:48:58,539 INFO L85 PathProgramCache]: Analyzing trace with hash -677732340, now seen corresponding path program 1 times [2022-11-20 11:48:58,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:48:58,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773355518] [2022-11-20 11:48:58,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:48:58,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:48:58,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:48:58,543 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:48:58,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-20 11:49:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:00,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:49:00,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-20 11:49:02,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:49:02,558 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-20 11:49:02,558 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:02,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773355518] [2022-11-20 11:49:02,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773355518] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:49:02,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:49:02,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:49:02,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896307556] [2022-11-20 11:49:02,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:02,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:49:02,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:02,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:49:02,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:49:02,562 INFO L87 Difference]: Start difference. First operand 3914 states and 5448 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-11-20 11:49:03,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:03,388 INFO L93 Difference]: Finished difference Result 3920 states and 5453 transitions. [2022-11-20 11:49:03,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:49:03,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 113 [2022-11-20 11:49:03,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:03,405 INFO L225 Difference]: With dead ends: 3920 [2022-11-20 11:49:03,405 INFO L226 Difference]: Without dead ends: 3918 [2022-11-20 11:49:03,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:49:03,409 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5145 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:03,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5145 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:49:03,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3918 states. [2022-11-20 11:49:04,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3918. [2022-11-20 11:49:04,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 2619 states have (on average 1.2363497518136692) internal successors, (3238), 2671 states have internal predecessors, (3238), 1108 states have call successors, (1108), 188 states have call predecessors, (1108), 187 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-11-20 11:49:04,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 5451 transitions. [2022-11-20 11:49:04,205 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 5451 transitions. Word has length 113 [2022-11-20 11:49:04,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:04,206 INFO L495 AbstractCegarLoop]: Abstraction has 3918 states and 5451 transitions. [2022-11-20 11:49:04,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-11-20 11:49:04,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 5451 transitions. [2022-11-20 11:49:04,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-20 11:49:04,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:04,208 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 3, 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] [2022-11-20 11:49:04,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:04,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:04,430 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:49:04,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:04,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1912755036, now seen corresponding path program 1 times [2022-11-20 11:49:04,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:49:04,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416922907] [2022-11-20 11:49:04,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:04,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:04,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:49:04,439 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:49:04,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-20 11:49:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:06,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:49:06,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-11-20 11:49:07,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:49:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2022-11-20 11:49:08,462 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:08,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416922907] [2022-11-20 11:49:08,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [416922907] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:49:08,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:49:08,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:49:08,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389723348] [2022-11-20 11:49:08,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:08,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:49:08,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:08,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:49:08,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:49:08,464 INFO L87 Difference]: Start difference. First operand 3918 states and 5451 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-11-20 11:49:09,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:09,318 INFO L93 Difference]: Finished difference Result 3924 states and 5456 transitions. [2022-11-20 11:49:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:49:09,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 118 [2022-11-20 11:49:09,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:09,333 INFO L225 Difference]: With dead ends: 3924 [2022-11-20 11:49:09,333 INFO L226 Difference]: Without dead ends: 3920 [2022-11-20 11:49:09,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:49:09,336 INFO L413 NwaCegarLoop]: 5175 mSDtfsCounter, 5143 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5144 SdHoareTripleChecker+Valid, 15502 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:09,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5144 Valid, 15502 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:49:09,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-11-20 11:49:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2022-11-20 11:49:10,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 2621 states have (on average 1.2357878672262494) internal successors, (3239), 2672 states have internal predecessors, (3239), 1108 states have call successors, (1108), 189 states have call predecessors, (1108), 187 states have return successors, (1105), 1096 states have call predecessors, (1105), 1105 states have call successors, (1105) [2022-11-20 11:49:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5452 transitions. [2022-11-20 11:49:10,283 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5452 transitions. Word has length 118 [2022-11-20 11:49:10,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:10,283 INFO L495 AbstractCegarLoop]: Abstraction has 3920 states and 5452 transitions. [2022-11-20 11:49:10,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-11-20 11:49:10,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5452 transitions. [2022-11-20 11:49:10,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-20 11:49:10,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:10,286 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 3, 3, 3, 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] [2022-11-20 11:49:10,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:10,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:10,502 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:49:10,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:10,502 INFO L85 PathProgramCache]: Analyzing trace with hash -618670388, now seen corresponding path program 1 times [2022-11-20 11:49:10,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:49:10,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354508113] [2022-11-20 11:49:10,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:10,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:10,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:49:10,506 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:49:10,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-20 11:49:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:12,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:49:12,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:14,072 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-20 11:49:14,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:49:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-11-20 11:49:14,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:14,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354508113] [2022-11-20 11:49:14,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354508113] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 11:49:14,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 11:49:14,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-20 11:49:14,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973865644] [2022-11-20 11:49:14,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:14,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:49:14,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:14,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:49:14,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:49:14,619 INFO L87 Difference]: Start difference. First operand 3920 states and 5452 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-11-20 11:49:16,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:16,048 INFO L93 Difference]: Finished difference Result 7802 states and 10853 transitions. [2022-11-20 11:49:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:49:16,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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 123 [2022-11-20 11:49:16,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:16,078 INFO L225 Difference]: With dead ends: 7802 [2022-11-20 11:49:16,078 INFO L226 Difference]: Without dead ends: 7690 [2022-11-20 11:49:16,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:49:16,084 INFO L413 NwaCegarLoop]: 6511 mSDtfsCounter, 5142 mSDsluCounter, 18131 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5142 SdHoareTripleChecker+Valid, 24642 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:16,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5142 Valid, 24642 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:49:16,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7690 states. [2022-11-20 11:49:17,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7690 to 7683. [2022-11-20 11:49:17,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7683 states, 5140 states have (on average 1.2392996108949417) internal successors, (6370), 5241 states have internal predecessors, (6370), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-11-20 11:49:17,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7683 states to 7683 states and 10728 transitions. [2022-11-20 11:49:17,465 INFO L78 Accepts]: Start accepts. Automaton has 7683 states and 10728 transitions. Word has length 123 [2022-11-20 11:49:17,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:17,466 INFO L495 AbstractCegarLoop]: Abstraction has 7683 states and 10728 transitions. [2022-11-20 11:49:17,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-11-20 11:49:17,466 INFO L276 IsEmpty]: Start isEmpty. Operand 7683 states and 10728 transitions. [2022-11-20 11:49:17,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-20 11:49:17,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:17,471 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:17,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:17,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:17,686 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:49:17,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:17,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1189229150, now seen corresponding path program 1 times [2022-11-20 11:49:17,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:49:17,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628790883] [2022-11-20 11:49:17,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:17,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:17,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:49:17,691 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:49:17,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-20 11:49:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:20,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:49:20,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 214 proven. 3 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2022-11-20 11:49:20,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:49:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 3 proven. 69 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-11-20 11:49:21,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:21,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628790883] [2022-11-20 11:49:21,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628790883] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:49:21,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:49:21,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2022-11-20 11:49:21,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160769170] [2022-11-20 11:49:21,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:49:21,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 11:49:21,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:21,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 11:49:21,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:49:21,777 INFO L87 Difference]: Start difference. First operand 7683 states and 10728 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-20 11:49:25,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:25,126 INFO L93 Difference]: Finished difference Result 15357 states and 21442 transitions. [2022-11-20 11:49:25,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:49:25,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) Word has length 212 [2022-11-20 11:49:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:25,161 INFO L225 Difference]: With dead ends: 15357 [2022-11-20 11:49:25,161 INFO L226 Difference]: Without dead ends: 7687 [2022-11-20 11:49:25,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-20 11:49:25,194 INFO L413 NwaCegarLoop]: 5138 mSDtfsCounter, 1256 mSDsluCounter, 23951 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 29089 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:25,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 29089 Invalid, 244 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-20 11:49:25,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7687 states. [2022-11-20 11:49:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7687 to 7683. [2022-11-20 11:49:26,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7683 states, 5140 states have (on average 1.2391050583657588) internal successors, (6369), 5240 states have internal predecessors, (6369), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-11-20 11:49:26,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7683 states to 7683 states and 10727 transitions. [2022-11-20 11:49:26,964 INFO L78 Accepts]: Start accepts. Automaton has 7683 states and 10727 transitions. Word has length 212 [2022-11-20 11:49:26,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:26,965 INFO L495 AbstractCegarLoop]: Abstraction has 7683 states and 10727 transitions. [2022-11-20 11:49:26,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-20 11:49:26,965 INFO L276 IsEmpty]: Start isEmpty. Operand 7683 states and 10727 transitions. [2022-11-20 11:49:26,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-20 11:49:26,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:26,972 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:27,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:27,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:27,194 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:49:27,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:27,195 INFO L85 PathProgramCache]: Analyzing trace with hash -2018528257, now seen corresponding path program 1 times [2022-11-20 11:49:27,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:49:27,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540749851] [2022-11-20 11:49:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:27,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:27,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:49:27,198 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:49:27,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-20 11:49:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:29,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1765 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 11:49:29,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 74 proven. 3 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2022-11-20 11:49:30,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:49:32,134 INFO L134 CoverageAnalysis]: Checked inductivity of 624 backedges. 69 proven. 3 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-20 11:49:32,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:32,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540749851] [2022-11-20 11:49:32,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540749851] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:49:32,134 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:49:32,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-11-20 11:49:32,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285075224] [2022-11-20 11:49:32,135 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:49:32,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:49:32,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:32,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:49:32,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:49:32,137 INFO L87 Difference]: Start difference. First operand 7683 states and 10727 transitions. Second operand has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2022-11-20 11:49:35,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:35,957 INFO L93 Difference]: Finished difference Result 8113 states and 11226 transitions. [2022-11-20 11:49:35,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:49:35,958 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) Word has length 216 [2022-11-20 11:49:35,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:35,987 INFO L225 Difference]: With dead ends: 8113 [2022-11-20 11:49:35,988 INFO L226 Difference]: Without dead ends: 7695 [2022-11-20 11:49:35,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-20 11:49:35,994 INFO L413 NwaCegarLoop]: 5145 mSDtfsCounter, 34 mSDsluCounter, 41013 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 46158 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:35,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 46158 Invalid, 377 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-20 11:49:36,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7695 states. [2022-11-20 11:49:37,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7695 to 7683. [2022-11-20 11:49:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7683 states, 5140 states have (on average 1.238715953307393) internal successors, (6367), 5238 states have internal predecessors, (6367), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-11-20 11:49:37,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7683 states to 7683 states and 10725 transitions. [2022-11-20 11:49:37,789 INFO L78 Accepts]: Start accepts. Automaton has 7683 states and 10725 transitions. Word has length 216 [2022-11-20 11:49:37,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:37,790 INFO L495 AbstractCegarLoop]: Abstraction has 7683 states and 10725 transitions. [2022-11-20 11:49:37,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 12 states have internal predecessors, (71), 5 states have call successors, (30), 2 states have call predecessors, (30), 5 states have return successors, (30), 6 states have call predecessors, (30), 5 states have call successors, (30) [2022-11-20 11:49:37,790 INFO L276 IsEmpty]: Start isEmpty. Operand 7683 states and 10725 transitions. [2022-11-20 11:49:37,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-20 11:49:37,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:37,799 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:37,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:38,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:38,022 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:49:38,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:38,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2033549084, now seen corresponding path program 1 times [2022-11-20 11:49:38,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:49:38,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838743084] [2022-11-20 11:49:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:38,024 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:38,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:49:38,025 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:49:38,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-20 11:49:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:40,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:49:40,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:42,811 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2022-11-20 11:49:42,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:49:42,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:42,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838743084] [2022-11-20 11:49:42,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838743084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:42,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:42,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:49:42,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519056728] [2022-11-20 11:49:42,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:42,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:49:42,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:42,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:49:42,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:49:42,815 INFO L87 Difference]: Start difference. First operand 7683 states and 10725 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-20 11:49:44,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:44,122 INFO L93 Difference]: Finished difference Result 7685 states and 10726 transitions. [2022-11-20 11:49:44,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:49:44,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 220 [2022-11-20 11:49:44,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:44,147 INFO L225 Difference]: With dead ends: 7685 [2022-11-20 11:49:44,147 INFO L226 Difference]: Without dead ends: 7683 [2022-11-20 11:49:44,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:49:44,150 INFO L413 NwaCegarLoop]: 5289 mSDtfsCounter, 4980 mSDsluCounter, 10887 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 16176 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:44,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4981 Valid, 16176 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:49:44,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7683 states. [2022-11-20 11:49:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7683 to 7681. [2022-11-20 11:49:45,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7681 states, 5139 states have (on average 1.2383732243627166) internal successors, (6364), 5236 states have internal predecessors, (6364), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-11-20 11:49:45,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7681 states to 7681 states and 10722 transitions. [2022-11-20 11:49:45,813 INFO L78 Accepts]: Start accepts. Automaton has 7681 states and 10722 transitions. Word has length 220 [2022-11-20 11:49:45,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:45,813 INFO L495 AbstractCegarLoop]: Abstraction has 7681 states and 10722 transitions. [2022-11-20 11:49:45,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-20 11:49:45,813 INFO L276 IsEmpty]: Start isEmpty. Operand 7681 states and 10722 transitions. [2022-11-20 11:49:45,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-20 11:49:45,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:45,820 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:45,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:46,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:46,034 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:49:46,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:46,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2022968083, now seen corresponding path program 1 times [2022-11-20 11:49:46,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:49:46,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051255520] [2022-11-20 11:49:46,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:46,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:46,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:49:46,038 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:49:46,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-20 11:49:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:48,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:49:48,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:49,029 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-11-20 11:49:49,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:49:49,029 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:49,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051255520] [2022-11-20 11:49:49,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051255520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:49,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:49,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:49:49,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402923187] [2022-11-20 11:49:49,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:49,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:49:49,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:49,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:49:49,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:49:49,034 INFO L87 Difference]: Start difference. First operand 7681 states and 10722 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-11-20 11:49:50,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:49:50,540 INFO L93 Difference]: Finished difference Result 15413 states and 21839 transitions. [2022-11-20 11:49:50,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:49:50,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 300 [2022-11-20 11:49:50,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:49:50,575 INFO L225 Difference]: With dead ends: 15413 [2022-11-20 11:49:50,575 INFO L226 Difference]: Without dead ends: 7749 [2022-11-20 11:49:50,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:49:50,618 INFO L413 NwaCegarLoop]: 5169 mSDtfsCounter, 12 mSDsluCounter, 5162 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 10331 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:49:50,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 10331 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:49:50,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7749 states. [2022-11-20 11:49:52,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7749 to 7685. [2022-11-20 11:49:52,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7685 states, 5143 states have (on average 1.2381878281158856) internal successors, (6368), 5240 states have internal predecessors, (6368), 2181 states have call successors, (2181), 361 states have call predecessors, (2181), 358 states have return successors, (2177), 2155 states have call predecessors, (2177), 2177 states have call successors, (2177) [2022-11-20 11:49:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7685 states to 7685 states and 10726 transitions. [2022-11-20 11:49:52,226 INFO L78 Accepts]: Start accepts. Automaton has 7685 states and 10726 transitions. Word has length 300 [2022-11-20 11:49:52,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:49:52,226 INFO L495 AbstractCegarLoop]: Abstraction has 7685 states and 10726 transitions. [2022-11-20 11:49:52,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2022-11-20 11:49:52,227 INFO L276 IsEmpty]: Start isEmpty. Operand 7685 states and 10726 transitions. [2022-11-20 11:49:52,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-20 11:49:52,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:49:52,233 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:49:52,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-20 11:49:52,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:52,446 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:49:52,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:49:52,447 INFO L85 PathProgramCache]: Analyzing trace with hash 200161221, now seen corresponding path program 1 times [2022-11-20 11:49:52,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:49:52,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076330883] [2022-11-20 11:49:52,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:49:52,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:49:52,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:49:52,449 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:49:52,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-20 11:49:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:49:55,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 1964 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:49:55,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:49:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-11-20 11:49:58,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:49:58,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:49:58,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076330883] [2022-11-20 11:49:58,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076330883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:49:58,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:49:58,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 11:49:58,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727858703] [2022-11-20 11:49:58,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:49:58,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 11:49:58,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:49:58,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 11:49:58,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-20 11:49:58,428 INFO L87 Difference]: Start difference. First operand 7685 states and 10726 transitions. Second operand has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2022-11-20 11:50:01,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:03,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:05,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:08,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:11,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:13,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:16,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:24,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:28,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:33,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:36,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:38,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:45,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:47,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:50,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:52,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:50:53,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:50:53,094 INFO L93 Difference]: Finished difference Result 15473 states and 21799 transitions. [2022-11-20 11:50:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-20 11:50:53,099 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) Word has length 313 [2022-11-20 11:50:53,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:50:53,122 INFO L225 Difference]: With dead ends: 15473 [2022-11-20 11:50:53,122 INFO L226 Difference]: Without dead ends: 7793 [2022-11-20 11:50:53,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 297 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-20 11:50:53,140 INFO L413 NwaCegarLoop]: 5169 mSDtfsCounter, 51 mSDsluCounter, 19554 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 2 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 24723 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 671 IncrementalHoareTripleChecker+Unchecked, 53.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:50:53,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 24723 Invalid, 1339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 654 Invalid, 12 Unknown, 671 Unchecked, 53.0s Time] [2022-11-20 11:50:53,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7793 states. [2022-11-20 11:50:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7793 to 7781. [2022-11-20 11:50:54,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7781 states, 5211 states have (on average 1.2373824601803876) internal successors, (6448), 5308 states have internal predecessors, (6448), 2197 states have call successors, (2197), 377 states have call predecessors, (2197), 370 states have return successors, (2193), 2167 states have call predecessors, (2193), 2193 states have call successors, (2193) [2022-11-20 11:50:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7781 states to 7781 states and 10838 transitions. [2022-11-20 11:50:54,673 INFO L78 Accepts]: Start accepts. Automaton has 7781 states and 10838 transitions. Word has length 313 [2022-11-20 11:50:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:50:54,674 INFO L495 AbstractCegarLoop]: Abstraction has 7781 states and 10838 transitions. [2022-11-20 11:50:54,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 7 states have call successors, (39), 4 states have call predecessors, (39), 6 states have return successors, (36), 6 states have call predecessors, (36), 6 states have call successors, (36) [2022-11-20 11:50:54,674 INFO L276 IsEmpty]: Start isEmpty. Operand 7781 states and 10838 transitions. [2022-11-20 11:50:54,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-20 11:50:54,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:50:54,682 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:50:54,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-20 11:50:54,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:50:54,892 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:50:54,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:50:54,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1828424889, now seen corresponding path program 1 times [2022-11-20 11:50:54,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:50:54,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797330985] [2022-11-20 11:50:54,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:50:54,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:50:54,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:50:54,895 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:50:54,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-20 11:50:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:50:57,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 1963 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:50:57,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:50:57,942 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-11-20 11:50:57,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:50:57,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:50:57,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797330985] [2022-11-20 11:50:57,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797330985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:50:57,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:50:57,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:50:57,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44354493] [2022-11-20 11:50:57,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:50:57,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:50:57,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:50:57,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:50:57,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:50:57,945 INFO L87 Difference]: Start difference. First operand 7781 states and 10838 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) [2022-11-20 11:50:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:50:59,269 INFO L93 Difference]: Finished difference Result 15557 states and 21889 transitions. [2022-11-20 11:50:59,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:50:59,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) Word has length 313 [2022-11-20 11:50:59,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:50:59,298 INFO L225 Difference]: With dead ends: 15557 [2022-11-20 11:50:59,299 INFO L226 Difference]: Without dead ends: 7793 [2022-11-20 11:50:59,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:50:59,323 INFO L413 NwaCegarLoop]: 5169 mSDtfsCounter, 3 mSDsluCounter, 5162 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10331 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:50:59,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10331 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:50:59,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7793 states. [2022-11-20 11:51:00,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7793 to 7785. [2022-11-20 11:51:00,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7785 states, 5215 states have (on average 1.2372003835091083) internal successors, (6452), 5312 states have internal predecessors, (6452), 2197 states have call successors, (2197), 377 states have call predecessors, (2197), 370 states have return successors, (2193), 2167 states have call predecessors, (2193), 2193 states have call successors, (2193) [2022-11-20 11:51:00,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7785 states to 7785 states and 10842 transitions. [2022-11-20 11:51:00,692 INFO L78 Accepts]: Start accepts. Automaton has 7785 states and 10842 transitions. Word has length 313 [2022-11-20 11:51:00,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:00,693 INFO L495 AbstractCegarLoop]: Abstraction has 7785 states and 10842 transitions. [2022-11-20 11:51:00,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) [2022-11-20 11:51:00,693 INFO L276 IsEmpty]: Start isEmpty. Operand 7785 states and 10842 transitions. [2022-11-20 11:51:00,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-11-20 11:51:00,700 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:00,701 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:00,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-20 11:51:00,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:00,923 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:51:00,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:00,923 INFO L85 PathProgramCache]: Analyzing trace with hash 661104073, now seen corresponding path program 1 times [2022-11-20 11:51:00,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:00,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [112756478] [2022-11-20 11:51:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:00,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:00,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:00,927 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:51:00,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-20 11:51:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:03,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 1963 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:51:03,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:04,256 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-11-20 11:51:04,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:51:04,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:04,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [112756478] [2022-11-20 11:51:04,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [112756478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:04,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:04,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 11:51:04,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114028870] [2022-11-20 11:51:04,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:04,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:51:04,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:04,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:51:04,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:04,259 INFO L87 Difference]: Start difference. First operand 7785 states and 10842 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 11:51:05,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:05,672 INFO L93 Difference]: Finished difference Result 15645 states and 22025 transitions. [2022-11-20 11:51:05,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:51:05,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 2 states have call successors, (36) Word has length 313 [2022-11-20 11:51:05,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:05,695 INFO L225 Difference]: With dead ends: 15645 [2022-11-20 11:51:05,695 INFO L226 Difference]: Without dead ends: 7877 [2022-11-20 11:51:05,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:51:05,720 INFO L413 NwaCegarLoop]: 5177 mSDtfsCounter, 10 mSDsluCounter, 20687 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 25864 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:05,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 25864 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:51:05,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7877 states. [2022-11-20 11:51:07,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7877 to 7849. [2022-11-20 11:51:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7849 states, 5259 states have (on average 1.2367370222475755) internal successors, (6504), 5356 states have internal predecessors, (6504), 2213 states have call successors, (2213), 377 states have call predecessors, (2213), 374 states have return successors, (2229), 2187 states have call predecessors, (2229), 2209 states have call successors, (2229) [2022-11-20 11:51:07,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7849 states to 7849 states and 10946 transitions. [2022-11-20 11:51:07,055 INFO L78 Accepts]: Start accepts. Automaton has 7849 states and 10946 transitions. Word has length 313 [2022-11-20 11:51:07,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:07,056 INFO L495 AbstractCegarLoop]: Abstraction has 7849 states and 10946 transitions. [2022-11-20 11:51:07,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 4 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-20 11:51:07,056 INFO L276 IsEmpty]: Start isEmpty. Operand 7849 states and 10946 transitions. [2022-11-20 11:51:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-11-20 11:51:07,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:07,063 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:07,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-20 11:51:07,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:07,278 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:51:07,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:07,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1056390113, now seen corresponding path program 1 times [2022-11-20 11:51:07,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:07,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850458555] [2022-11-20 11:51:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:07,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:07,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:07,282 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:51:07,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-20 11:51:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:10,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1971 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:51:10,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-11-20 11:51:10,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:51:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-11-20 11:51:11,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:11,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850458555] [2022-11-20 11:51:11,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850458555] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:51:11,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:51:11,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-20 11:51:11,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095482914] [2022-11-20 11:51:11,212 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:51:11,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:51:11,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:11,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:51:11,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:11,214 INFO L87 Difference]: Start difference. First operand 7849 states and 10946 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 4 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-20 11:51:12,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:12,803 INFO L93 Difference]: Finished difference Result 15841 states and 22459 transitions. [2022-11-20 11:51:12,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:51:12,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 4 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) Word has length 319 [2022-11-20 11:51:12,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:12,827 INFO L225 Difference]: With dead ends: 15841 [2022-11-20 11:51:12,827 INFO L226 Difference]: Without dead ends: 8009 [2022-11-20 11:51:12,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:51:12,848 INFO L413 NwaCegarLoop]: 5198 mSDtfsCounter, 66 mSDsluCounter, 15499 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 20697 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:12,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 20697 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 11:51:12,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8009 states. [2022-11-20 11:51:14,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8009 to 7973. [2022-11-20 11:51:14,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7973 states, 5339 states have (on average 1.2361865517887245) internal successors, (6600), 5436 states have internal predecessors, (6600), 2257 states have call successors, (2257), 377 states have call predecessors, (2257), 374 states have return successors, (2273), 2231 states have call predecessors, (2273), 2253 states have call successors, (2273) [2022-11-20 11:51:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7973 states to 7973 states and 11130 transitions. [2022-11-20 11:51:14,196 INFO L78 Accepts]: Start accepts. Automaton has 7973 states and 11130 transitions. Word has length 319 [2022-11-20 11:51:14,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:14,196 INFO L495 AbstractCegarLoop]: Abstraction has 7973 states and 11130 transitions. [2022-11-20 11:51:14,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 4 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (40), 4 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-20 11:51:14,197 INFO L276 IsEmpty]: Start isEmpty. Operand 7973 states and 11130 transitions. [2022-11-20 11:51:14,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-11-20 11:51:14,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:14,205 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:14,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2022-11-20 11:51:14,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:14,419 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:51:14,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:14,420 INFO L85 PathProgramCache]: Analyzing trace with hash 661778178, now seen corresponding path program 1 times [2022-11-20 11:51:14,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:14,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826137805] [2022-11-20 11:51:14,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:14,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:14,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:14,425 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:51:14,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-20 11:51:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:17,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1975 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:51:17,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2022-11-20 11:51:17,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:51:17,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:17,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826137805] [2022-11-20 11:51:17,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826137805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:17,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:17,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:51:17,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243647422] [2022-11-20 11:51:17,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:17,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:51:17,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:17,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:51:17,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:51:17,792 INFO L87 Difference]: Start difference. First operand 7973 states and 11130 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (37), 4 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 11:51:19,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:19,192 INFO L93 Difference]: Finished difference Result 15965 states and 22383 transitions. [2022-11-20 11:51:19,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:51:19,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (37), 4 states have call predecessors, (37), 1 states have call successors, (37) Word has length 319 [2022-11-20 11:51:19,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:19,225 INFO L225 Difference]: With dead ends: 15965 [2022-11-20 11:51:19,226 INFO L226 Difference]: Without dead ends: 8009 [2022-11-20 11:51:19,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:51:19,252 INFO L413 NwaCegarLoop]: 5168 mSDtfsCounter, 5 mSDsluCounter, 25820 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 30988 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:19,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 30988 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:51:19,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8009 states. [2022-11-20 11:51:20,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8009 to 8001. [2022-11-20 11:51:20,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8001 states, 5359 states have (on average 1.235305094233999) internal successors, (6620), 5456 states have internal predecessors, (6620), 2257 states have call successors, (2257), 377 states have call predecessors, (2257), 382 states have return successors, (2305), 2239 states have call predecessors, (2305), 2253 states have call successors, (2305) [2022-11-20 11:51:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8001 states to 8001 states and 11182 transitions. [2022-11-20 11:51:20,705 INFO L78 Accepts]: Start accepts. Automaton has 8001 states and 11182 transitions. Word has length 319 [2022-11-20 11:51:20,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:20,705 INFO L495 AbstractCegarLoop]: Abstraction has 8001 states and 11182 transitions. [2022-11-20 11:51:20,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 5 states have internal predecessors, (123), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (37), 4 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-20 11:51:20,705 INFO L276 IsEmpty]: Start isEmpty. Operand 8001 states and 11182 transitions. [2022-11-20 11:51:20,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-11-20 11:51:20,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:20,710 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:20,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-20 11:51:20,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:20,926 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:51:20,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:20,927 INFO L85 PathProgramCache]: Analyzing trace with hash -961700075, now seen corresponding path program 1 times [2022-11-20 11:51:20,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:20,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722290433] [2022-11-20 11:51:20,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:20,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:20,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:20,929 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:51:20,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-20 11:51:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:23,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 1996 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:51:23,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:24,495 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-11-20 11:51:24,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:51:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-11-20 11:51:26,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:26,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722290433] [2022-11-20 11:51:26,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722290433] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:51:26,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 11:51:26,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-20 11:51:26,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561288802] [2022-11-20 11:51:26,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 11:51:26,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 11:51:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:26,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 11:51:26,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-20 11:51:26,307 INFO L87 Difference]: Start difference. First operand 8001 states and 11182 transitions. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 10 states have internal predecessors, (146), 6 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (45), 8 states have call predecessors, (45), 5 states have call successors, (45) [2022-11-20 11:51:29,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:29,076 INFO L93 Difference]: Finished difference Result 16065 states and 22735 transitions. [2022-11-20 11:51:29,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 11:51:29,077 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 10 states have internal predecessors, (146), 6 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (45), 8 states have call predecessors, (45), 5 states have call successors, (45) Word has length 332 [2022-11-20 11:51:29,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:29,109 INFO L225 Difference]: With dead ends: 16065 [2022-11-20 11:51:29,109 INFO L226 Difference]: Without dead ends: 8081 [2022-11-20 11:51:29,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2022-11-20 11:51:29,135 INFO L413 NwaCegarLoop]: 5199 mSDtfsCounter, 47 mSDsluCounter, 46670 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 51869 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:29,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 51869 Invalid, 148 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-20 11:51:29,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8081 states. [2022-11-20 11:51:30,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8081 to 8001. [2022-11-20 11:51:30,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8001 states, 5359 states have (on average 1.235305094233999) internal successors, (6620), 5456 states have internal predecessors, (6620), 2257 states have call successors, (2257), 377 states have call predecessors, (2257), 382 states have return successors, (2305), 2239 states have call predecessors, (2305), 2253 states have call successors, (2305) [2022-11-20 11:51:30,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8001 states to 8001 states and 11182 transitions. [2022-11-20 11:51:30,420 INFO L78 Accepts]: Start accepts. Automaton has 8001 states and 11182 transitions. Word has length 332 [2022-11-20 11:51:30,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:30,421 INFO L495 AbstractCegarLoop]: Abstraction has 8001 states and 11182 transitions. [2022-11-20 11:51:30,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 10 states have internal predecessors, (146), 6 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (45), 8 states have call predecessors, (45), 5 states have call successors, (45) [2022-11-20 11:51:30,421 INFO L276 IsEmpty]: Start isEmpty. Operand 8001 states and 11182 transitions. [2022-11-20 11:51:30,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-11-20 11:51:30,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:30,426 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:30,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-20 11:51:30,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:30,627 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:51:30,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:30,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1252048044, now seen corresponding path program 1 times [2022-11-20 11:51:30,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:30,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014702351] [2022-11-20 11:51:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:30,629 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:30,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:30,630 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:51:30,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-20 11:51:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:34,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2094 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:51:34,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:34,459 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-11-20 11:51:34,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:51:34,459 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:34,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014702351] [2022-11-20 11:51:34,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014702351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:34,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:34,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:51:34,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077141326] [2022-11-20 11:51:34,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:34,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:51:34,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:34,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:51:34,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:51:34,461 INFO L87 Difference]: Start difference. First operand 8001 states and 11182 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (39), 4 states have call predecessors, (39), 1 states have call successors, (39) [2022-11-20 11:51:35,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:35,864 INFO L93 Difference]: Finished difference Result 16001 states and 22443 transitions. [2022-11-20 11:51:35,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:51:35,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (39), 4 states have call predecessors, (39), 1 states have call successors, (39) Word has length 375 [2022-11-20 11:51:35,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:35,888 INFO L225 Difference]: With dead ends: 16001 [2022-11-20 11:51:35,888 INFO L226 Difference]: Without dead ends: 8017 [2022-11-20 11:51:35,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:51:35,907 INFO L413 NwaCegarLoop]: 5168 mSDtfsCounter, 2 mSDsluCounter, 25824 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 30992 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:35,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 30992 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:51:35,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-11-20 11:51:37,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 8009. [2022-11-20 11:51:37,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8009 states, 5367 states have (on average 1.2349543506614495) internal successors, (6628), 5460 states have internal predecessors, (6628), 2257 states have call successors, (2257), 377 states have call predecessors, (2257), 382 states have return successors, (2305), 2243 states have call predecessors, (2305), 2253 states have call successors, (2305) [2022-11-20 11:51:37,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8009 states to 8009 states and 11190 transitions. [2022-11-20 11:51:37,185 INFO L78 Accepts]: Start accepts. Automaton has 8009 states and 11190 transitions. Word has length 375 [2022-11-20 11:51:37,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:37,185 INFO L495 AbstractCegarLoop]: Abstraction has 8009 states and 11190 transitions. [2022-11-20 11:51:37,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (41), 2 states have call predecessors, (41), 4 states have return successors, (39), 4 states have call predecessors, (39), 1 states have call successors, (39) [2022-11-20 11:51:37,185 INFO L276 IsEmpty]: Start isEmpty. Operand 8009 states and 11190 transitions. [2022-11-20 11:51:37,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-11-20 11:51:37,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:37,191 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:37,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-20 11:51:37,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:37,391 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:51:37,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:37,392 INFO L85 PathProgramCache]: Analyzing trace with hash 255503765, now seen corresponding path program 1 times [2022-11-20 11:51:37,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:37,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423262562] [2022-11-20 11:51:37,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:37,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:37,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:37,394 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:51:37,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-20 11:51:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:40,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 2094 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:51:40,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:40,991 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2022-11-20 11:51:40,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:51:40,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:40,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423262562] [2022-11-20 11:51:40,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423262562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:40,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:40,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:40,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678318445] [2022-11-20 11:51:40,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:40,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:51:40,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:40,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:51:40,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:51:40,994 INFO L87 Difference]: Start difference. First operand 8009 states and 11190 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (38), 3 states have call predecessors, (38), 1 states have call successors, (38) [2022-11-20 11:51:42,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:42,402 INFO L93 Difference]: Finished difference Result 16025 states and 22451 transitions. [2022-11-20 11:51:42,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:51:42,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (38), 3 states have call predecessors, (38), 1 states have call successors, (38) Word has length 375 [2022-11-20 11:51:42,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:42,422 INFO L225 Difference]: With dead ends: 16025 [2022-11-20 11:51:42,422 INFO L226 Difference]: Without dead ends: 8033 [2022-11-20 11:51:42,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:42,438 INFO L413 NwaCegarLoop]: 5167 mSDtfsCounter, 3 mSDsluCounter, 15491 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20658 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:42,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 20658 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:51:42,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8033 states. [2022-11-20 11:51:43,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8033 to 8025. [2022-11-20 11:51:43,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8025 states, 5379 states have (on average 1.2344301914854061) internal successors, (6640), 5472 states have internal predecessors, (6640), 2257 states have call successors, (2257), 377 states have call predecessors, (2257), 386 states have return successors, (2311), 2247 states have call predecessors, (2311), 2253 states have call successors, (2311) [2022-11-20 11:51:43,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8025 states to 8025 states and 11208 transitions. [2022-11-20 11:51:43,854 INFO L78 Accepts]: Start accepts. Automaton has 8025 states and 11208 transitions. Word has length 375 [2022-11-20 11:51:43,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:43,855 INFO L495 AbstractCegarLoop]: Abstraction has 8025 states and 11208 transitions. [2022-11-20 11:51:43,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (41), 2 states have call predecessors, (41), 3 states have return successors, (38), 3 states have call predecessors, (38), 1 states have call successors, (38) [2022-11-20 11:51:43,855 INFO L276 IsEmpty]: Start isEmpty. Operand 8025 states and 11208 transitions. [2022-11-20 11:51:43,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2022-11-20 11:51:43,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:43,864 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:43,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-20 11:51:44,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:44,065 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:51:44,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:44,066 INFO L85 PathProgramCache]: Analyzing trace with hash -217036302, now seen corresponding path program 1 times [2022-11-20 11:51:44,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:44,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380838963] [2022-11-20 11:51:44,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:44,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:44,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:44,070 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:51:44,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-20 11:51:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:48,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:51:48,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2022-11-20 11:51:50,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:51:50,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:50,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380838963] [2022-11-20 11:51:50,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380838963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:50,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:50,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:50,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609525428] [2022-11-20 11:51:50,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:50,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:51:50,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:50,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:51:50,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:51:50,273 INFO L87 Difference]: Start difference. First operand 8025 states and 11208 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-20 11:51:51,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:51:51,711 INFO L93 Difference]: Finished difference Result 8027 states and 11209 transitions. [2022-11-20 11:51:51,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:51:51,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 430 [2022-11-20 11:51:51,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:51:51,732 INFO L225 Difference]: With dead ends: 8027 [2022-11-20 11:51:51,732 INFO L226 Difference]: Without dead ends: 7753 [2022-11-20 11:51:51,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:51:51,737 INFO L413 NwaCegarLoop]: 5284 mSDtfsCounter, 219 mSDsluCounter, 15641 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 20925 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:51:51,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 20925 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:51:51,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7753 states. [2022-11-20 11:51:52,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7753 to 7748. [2022-11-20 11:51:53,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7748 states, 5185 states have (on average 1.2325940212150435) internal successors, (6391), 5268 states have internal predecessors, (6391), 2180 states have call successors, (2180), 374 states have call predecessors, (2180), 380 states have return successors, (2229), 2172 states have call predecessors, (2229), 2177 states have call successors, (2229) [2022-11-20 11:51:53,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7748 states to 7748 states and 10800 transitions. [2022-11-20 11:51:53,025 INFO L78 Accepts]: Start accepts. Automaton has 7748 states and 10800 transitions. Word has length 430 [2022-11-20 11:51:53,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:51:53,025 INFO L495 AbstractCegarLoop]: Abstraction has 7748 states and 10800 transitions. [2022-11-20 11:51:53,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-20 11:51:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand 7748 states and 10800 transitions. [2022-11-20 11:51:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1197 [2022-11-20 11:51:53,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:51:53,043 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 23, 23, 20, 20, 13, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:53,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-20 11:51:53,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:53,244 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:51:53,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:53,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1977132444, now seen corresponding path program 1 times [2022-11-20 11:51:53,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:51:53,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048232200] [2022-11-20 11:51:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:53,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:51:53,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:51:53,249 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:51:53,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-20 11:51:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:58,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 6106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:51:58,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:51:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3982 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 3736 trivial. 0 not checked. [2022-11-20 11:51:59,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:51:59,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:51:59,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048232200] [2022-11-20 11:51:59,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048232200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:59,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:59,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:59,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14272313] [2022-11-20 11:51:59,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:59,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:51:59,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:51:59,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:51:59,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:51:59,068 INFO L87 Difference]: Start difference. First operand 7748 states and 10800 transitions. Second operand has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2022-11-20 11:52:01,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:52:01,515 INFO L93 Difference]: Finished difference Result 16275 states and 22735 transitions. [2022-11-20 11:52:01,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:52:01,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) Word has length 1196 [2022-11-20 11:52:01,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:52:01,542 INFO L225 Difference]: With dead ends: 16275 [2022-11-20 11:52:01,542 INFO L226 Difference]: Without dead ends: 8544 [2022-11-20 11:52:01,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1199 GetRequests, 1194 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:52:01,559 INFO L413 NwaCegarLoop]: 5686 mSDtfsCounter, 1325 mSDsluCounter, 16106 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 21792 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:52:01,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 21792 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 11:52:01,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8544 states. [2022-11-20 11:52:02,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8544 to 7754. [2022-11-20 11:52:02,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7754 states, 5191 states have (on average 1.2323251781930264) internal successors, (6397), 5274 states have internal predecessors, (6397), 2180 states have call successors, (2180), 374 states have call predecessors, (2180), 380 states have return successors, (2229), 2172 states have call predecessors, (2229), 2177 states have call successors, (2229) [2022-11-20 11:52:02,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 10806 transitions. [2022-11-20 11:52:02,830 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 10806 transitions. Word has length 1196 [2022-11-20 11:52:02,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:52:02,831 INFO L495 AbstractCegarLoop]: Abstraction has 7754 states and 10806 transitions. [2022-11-20 11:52:02,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.4) internal successors, (382), 5 states have internal predecessors, (382), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (121), 2 states have call predecessors, (121), 2 states have call successors, (121) [2022-11-20 11:52:02,831 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 10806 transitions. [2022-11-20 11:52:02,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1254 [2022-11-20 11:52:02,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:02,853 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 26, 26, 20, 20, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:02,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-20 11:52:03,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:03,055 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:52:03,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:03,056 INFO L85 PathProgramCache]: Analyzing trace with hash -325521773, now seen corresponding path program 1 times [2022-11-20 11:52:03,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:52:03,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225254583] [2022-11-20 11:52:03,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:03,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:03,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:52:03,061 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:52:03,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-20 11:52:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:08,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 6231 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 11:52:08,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:52:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4686 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 4422 trivial. 0 not checked. [2022-11-20 11:52:09,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:52:09,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:52:09,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225254583] [2022-11-20 11:52:09,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225254583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:52:09,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:52:09,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:52:09,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121245236] [2022-11-20 11:52:09,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:52:09,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:52:09,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:52:09,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:52:09,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:52:09,221 INFO L87 Difference]: Start difference. First operand 7754 states and 10806 transitions. Second operand has 5 states, 5 states have (on average 78.2) internal successors, (391), 5 states have internal predecessors, (391), 2 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2022-11-20 11:52:12,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:52:12,628 INFO L93 Difference]: Finished difference Result 16319 states and 22791 transitions. [2022-11-20 11:52:12,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:52:12,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 78.2) internal successors, (391), 5 states have internal predecessors, (391), 2 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) Word has length 1253 [2022-11-20 11:52:12,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:52:12,657 INFO L225 Difference]: With dead ends: 16319 [2022-11-20 11:52:12,657 INFO L226 Difference]: Without dead ends: 8582 [2022-11-20 11:52:12,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1256 GetRequests, 1251 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:52:12,677 INFO L413 NwaCegarLoop]: 5715 mSDtfsCounter, 1343 mSDsluCounter, 16126 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 21841 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:52:12,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 21841 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-20 11:52:12,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8582 states. [2022-11-20 11:52:13,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8582 to 7760. [2022-11-20 11:52:13,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7760 states, 5197 states have (on average 1.232056955936117) internal successors, (6403), 5280 states have internal predecessors, (6403), 2180 states have call successors, (2180), 374 states have call predecessors, (2180), 380 states have return successors, (2229), 2172 states have call predecessors, (2229), 2177 states have call successors, (2229) [2022-11-20 11:52:14,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7760 states to 7760 states and 10812 transitions. [2022-11-20 11:52:14,002 INFO L78 Accepts]: Start accepts. Automaton has 7760 states and 10812 transitions. Word has length 1253 [2022-11-20 11:52:14,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:52:14,003 INFO L495 AbstractCegarLoop]: Abstraction has 7760 states and 10812 transitions. [2022-11-20 11:52:14,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.2) internal successors, (391), 5 states have internal predecessors, (391), 2 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2022-11-20 11:52:14,003 INFO L276 IsEmpty]: Start isEmpty. Operand 7760 states and 10812 transitions. [2022-11-20 11:52:14,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1275 [2022-11-20 11:52:14,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:14,021 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 26, 26, 20, 20, 15, 15, 15, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:14,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-20 11:52:14,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:14,222 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:52:14,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:14,223 INFO L85 PathProgramCache]: Analyzing trace with hash 818834939, now seen corresponding path program 1 times [2022-11-20 11:52:14,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:52:14,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855656916] [2022-11-20 11:52:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:14,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:14,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:52:14,227 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:52:14,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-20 11:52:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:21,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 6280 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-20 11:52:21,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:52:21,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4841 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 4565 trivial. 0 not checked. [2022-11-20 11:52:21,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:52:21,862 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:52:21,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855656916] [2022-11-20 11:52:21,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855656916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:52:21,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:52:21,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:52:21,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781716510] [2022-11-20 11:52:21,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:52:21,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:52:21,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:52:21,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:52:21,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:52:21,866 INFO L87 Difference]: Start difference. First operand 7760 states and 10812 transitions. Second operand has 7 states, 7 states have (on average 56.0) internal successors, (392), 6 states have internal predecessors, (392), 2 states have call successors, (124), 2 states have call predecessors, (124), 3 states have return successors, (123), 3 states have call predecessors, (123), 2 states have call successors, (123) [2022-11-20 11:52:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:52:25,129 INFO L93 Difference]: Finished difference Result 16007 states and 22341 transitions. [2022-11-20 11:52:25,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:52:25,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.0) internal successors, (392), 6 states have internal predecessors, (392), 2 states have call successors, (124), 2 states have call predecessors, (124), 3 states have return successors, (123), 3 states have call predecessors, (123), 2 states have call successors, (123) Word has length 1274 [2022-11-20 11:52:25,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:52:25,171 INFO L225 Difference]: With dead ends: 16007 [2022-11-20 11:52:25,171 INFO L226 Difference]: Without dead ends: 8264 [2022-11-20 11:52:25,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1276 GetRequests, 1269 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 11:52:25,192 INFO L413 NwaCegarLoop]: 5664 mSDtfsCounter, 623 mSDsluCounter, 27500 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 33164 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:52:25,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 33164 Invalid, 235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [196 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-20 11:52:25,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8264 states. [2022-11-20 11:52:26,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8264 to 7772. [2022-11-20 11:52:26,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7772 states, 5207 states have (on average 1.2316112924908778) internal successors, (6413), 5290 states have internal predecessors, (6413), 2180 states have call successors, (2180), 374 states have call predecessors, (2180), 382 states have return successors, (2243), 2174 states have call predecessors, (2243), 2177 states have call successors, (2243) [2022-11-20 11:52:26,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7772 states to 7772 states and 10836 transitions. [2022-11-20 11:52:26,526 INFO L78 Accepts]: Start accepts. Automaton has 7772 states and 10836 transitions. Word has length 1274 [2022-11-20 11:52:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:52:26,526 INFO L495 AbstractCegarLoop]: Abstraction has 7772 states and 10836 transitions. [2022-11-20 11:52:26,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.0) internal successors, (392), 6 states have internal predecessors, (392), 2 states have call successors, (124), 2 states have call predecessors, (124), 3 states have return successors, (123), 3 states have call predecessors, (123), 2 states have call successors, (123) [2022-11-20 11:52:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 7772 states and 10836 transitions. [2022-11-20 11:52:26,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1291 [2022-11-20 11:52:26,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:26,545 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 26, 26, 20, 20, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:26,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-20 11:52:26,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:26,758 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:52:26,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:26,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1209426165, now seen corresponding path program 1 times [2022-11-20 11:52:26,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:52:26,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198359020] [2022-11-20 11:52:26,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:26,762 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:26,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:52:26,763 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:52:26,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-20 11:52:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:33,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 6314 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:52:33,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:52:33,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4983 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2022-11-20 11:52:33,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:52:33,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:52:33,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198359020] [2022-11-20 11:52:33,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198359020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:52:33,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:52:33,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:52:33,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420315828] [2022-11-20 11:52:33,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:52:33,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:52:33,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:52:33,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:52:33,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:52:33,819 INFO L87 Difference]: Start difference. First operand 7772 states and 10836 transitions. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 2 states have call successors, (127), 2 states have call predecessors, (127), 2 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2022-11-20 11:52:35,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:52:35,857 INFO L93 Difference]: Finished difference Result 15535 states and 21663 transitions. [2022-11-20 11:52:35,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 11:52:35,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 2 states have call successors, (127), 2 states have call predecessors, (127), 2 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) Word has length 1290 [2022-11-20 11:52:35,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:52:35,880 INFO L225 Difference]: With dead ends: 15535 [2022-11-20 11:52:35,880 INFO L226 Difference]: Without dead ends: 7780 [2022-11-20 11:52:35,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1290 GetRequests, 1287 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:52:35,895 INFO L413 NwaCegarLoop]: 5164 mSDtfsCounter, 3 mSDsluCounter, 10321 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 15485 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:52:35,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 15485 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:52:35,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7780 states. [2022-11-20 11:52:37,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7780 to 7778. [2022-11-20 11:52:37,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7778 states, 5213 states have (on average 1.2313447151352388) internal successors, (6419), 5296 states have internal predecessors, (6419), 2180 states have call successors, (2180), 374 states have call predecessors, (2180), 382 states have return successors, (2243), 2174 states have call predecessors, (2243), 2177 states have call successors, (2243) [2022-11-20 11:52:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7778 states to 7778 states and 10842 transitions. [2022-11-20 11:52:37,226 INFO L78 Accepts]: Start accepts. Automaton has 7778 states and 10842 transitions. Word has length 1290 [2022-11-20 11:52:37,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:52:37,227 INFO L495 AbstractCegarLoop]: Abstraction has 7778 states and 10842 transitions. [2022-11-20 11:52:37,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 2 states have call successors, (127), 2 states have call predecessors, (127), 2 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2022-11-20 11:52:37,228 INFO L276 IsEmpty]: Start isEmpty. Operand 7778 states and 10842 transitions. [2022-11-20 11:52:37,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1234 [2022-11-20 11:52:37,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:37,244 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 23, 23, 20, 20, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:37,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-20 11:52:37,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:37,446 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:52:37,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:37,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1345551170, now seen corresponding path program 1 times [2022-11-20 11:52:37,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:52:37,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752688111] [2022-11-20 11:52:37,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:37,451 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:37,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:52:37,452 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:52:37,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-20 11:52:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:44,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 6217 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:52:44,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:52:44,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4279 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 3829 trivial. 0 not checked. [2022-11-20 11:52:44,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:52:44,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:52:44,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752688111] [2022-11-20 11:52:44,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752688111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:52:44,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:52:44,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:52:44,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549713842] [2022-11-20 11:52:44,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:52:44,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:52:44,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:52:44,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:52:44,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:52:44,454 INFO L87 Difference]: Start difference. First operand 7778 states and 10842 transitions. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2022-11-20 11:52:45,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:48,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:52:51,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:52:51,279 INFO L93 Difference]: Finished difference Result 15691 states and 21882 transitions. [2022-11-20 11:52:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:52:51,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 1233 [2022-11-20 11:52:51,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:52:51,303 INFO L225 Difference]: With dead ends: 15691 [2022-11-20 11:52:51,303 INFO L226 Difference]: Without dead ends: 7930 [2022-11-20 11:52:51,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1234 GetRequests, 1231 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:52:51,319 INFO L413 NwaCegarLoop]: 5373 mSDtfsCounter, 2415 mSDsluCounter, 7469 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2417 SdHoareTripleChecker+Valid, 12842 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:52:51,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2417 Valid, 12842 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-20 11:52:51,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7930 states. [2022-11-20 11:52:52,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7930 to 7778. [2022-11-20 11:52:52,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7778 states, 5213 states have (on average 1.2309610588912334) internal successors, (6417), 5296 states have internal predecessors, (6417), 2180 states have call successors, (2180), 374 states have call predecessors, (2180), 382 states have return successors, (2243), 2174 states have call predecessors, (2243), 2177 states have call successors, (2243) [2022-11-20 11:52:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7778 states to 7778 states and 10840 transitions. [2022-11-20 11:52:52,676 INFO L78 Accepts]: Start accepts. Automaton has 7778 states and 10840 transitions. Word has length 1233 [2022-11-20 11:52:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:52:52,676 INFO L495 AbstractCegarLoop]: Abstraction has 7778 states and 10840 transitions. [2022-11-20 11:52:52,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 2 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2022-11-20 11:52:52,676 INFO L276 IsEmpty]: Start isEmpty. Operand 7778 states and 10840 transitions. [2022-11-20 11:52:52,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2022-11-20 11:52:52,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:52:52,694 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 26, 26, 20, 20, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:52,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-20 11:52:52,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:52,894 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:52:52,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:52,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1971679409, now seen corresponding path program 1 times [2022-11-20 11:52:52,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:52:52,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732922642] [2022-11-20 11:52:52,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:52,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:52:52,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:52:52,899 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:52:52,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-20 11:53:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:00,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 6543 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:53:00,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:00,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4983 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2022-11-20 11:53:00,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:00,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:00,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732922642] [2022-11-20 11:53:00,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732922642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:00,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:00,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:53:00,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344486394] [2022-11-20 11:53:00,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:00,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:53:00,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:00,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:53:00,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:53:00,528 INFO L87 Difference]: Start difference. First operand 7778 states and 10840 transitions. Second operand has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 2 states have call successors, (127), 2 states have call predecessors, (127), 2 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2022-11-20 11:53:01,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:04,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:06,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:53:06,943 INFO L93 Difference]: Finished difference Result 15747 states and 21960 transitions. [2022-11-20 11:53:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:53:06,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 2 states have call successors, (127), 2 states have call predecessors, (127), 2 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) Word has length 1298 [2022-11-20 11:53:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:53:06,969 INFO L225 Difference]: With dead ends: 15747 [2022-11-20 11:53:06,969 INFO L226 Difference]: Without dead ends: 7986 [2022-11-20 11:53:06,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1299 GetRequests, 1296 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:06,988 INFO L413 NwaCegarLoop]: 5450 mSDtfsCounter, 2418 mSDsluCounter, 7623 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 850 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2428 SdHoareTripleChecker+Valid, 13073 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:53:06,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2428 Valid, 13073 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-20 11:53:06,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7986 states. [2022-11-20 11:53:08,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7986 to 7778. [2022-11-20 11:53:08,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7778 states, 5213 states have (on average 1.230577402647228) internal successors, (6415), 5296 states have internal predecessors, (6415), 2180 states have call successors, (2180), 374 states have call predecessors, (2180), 382 states have return successors, (2243), 2174 states have call predecessors, (2243), 2177 states have call successors, (2243) [2022-11-20 11:53:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7778 states to 7778 states and 10838 transitions. [2022-11-20 11:53:08,420 INFO L78 Accepts]: Start accepts. Automaton has 7778 states and 10838 transitions. Word has length 1298 [2022-11-20 11:53:08,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:53:08,420 INFO L495 AbstractCegarLoop]: Abstraction has 7778 states and 10838 transitions. [2022-11-20 11:53:08,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 2 states have call successors, (127), 2 states have call predecessors, (127), 2 states have return successors, (126), 2 states have call predecessors, (126), 2 states have call successors, (126) [2022-11-20 11:53:08,420 INFO L276 IsEmpty]: Start isEmpty. Operand 7778 states and 10838 transitions. [2022-11-20 11:53:08,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1336 [2022-11-20 11:53:08,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:53:08,439 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 26, 26, 20, 20, 17, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:53:08,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2022-11-20 11:53:08,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:08,640 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:53:08,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:53:08,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1056712487, now seen corresponding path program 1 times [2022-11-20 11:53:08,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:53:08,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150156367] [2022-11-20 11:53:08,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:53:08,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:53:08,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:53:08,645 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:53:08,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2022-11-20 11:53:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:53:17,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 6709 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 11:53:17,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:53:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4989 backedges. 1176 proven. 0 refuted. 0 times theorem prover too weak. 3813 trivial. 0 not checked. [2022-11-20 11:53:17,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:53:17,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:53:17,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150156367] [2022-11-20 11:53:17,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [150156367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:53:17,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:53:17,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:53:17,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184180401] [2022-11-20 11:53:17,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:53:17,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:53:17,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:53:17,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:53:17,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:53:17,506 INFO L87 Difference]: Start difference. First operand 7778 states and 10838 transitions. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (133), 2 states have call predecessors, (133), 2 states have call successors, (133) [2022-11-20 11:53:25,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:28,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:29,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:31,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:33,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:38,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:40,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:43,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:45,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:48,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:54,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:53:57,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:04,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:10,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:12,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:15,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:17,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:22,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:24,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:26,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:31,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:33,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:35,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:37,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:43,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:45,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:47,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:52,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:54,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:57,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:54:59,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:55:01,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:55:03,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:55:06,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:55:07,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:55:09,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:09,796 INFO L93 Difference]: Finished difference Result 15611 states and 21796 transitions. [2022-11-20 11:55:09,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:55:09,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (133), 2 states have call predecessors, (133), 2 states have call successors, (133) Word has length 1335 [2022-11-20 11:55:09,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:09,831 INFO L225 Difference]: With dead ends: 15611 [2022-11-20 11:55:09,832 INFO L226 Difference]: Without dead ends: 7850 [2022-11-20 11:55:09,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1335 GetRequests, 1331 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:55:09,852 INFO L413 NwaCegarLoop]: 5178 mSDtfsCounter, 43 mSDsluCounter, 14276 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 4 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 19454 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 110.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:09,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 19454 Invalid, 1308 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1281 Invalid, 23 Unknown, 0 Unchecked, 110.5s Time] [2022-11-20 11:55:09,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7850 states. [2022-11-20 11:55:11,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7850 to 7786. [2022-11-20 11:55:11,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7786 states, 5221 states have (on average 1.230607163378663) internal successors, (6425), 5304 states have internal predecessors, (6425), 2180 states have call successors, (2180), 374 states have call predecessors, (2180), 382 states have return successors, (2243), 2174 states have call predecessors, (2243), 2177 states have call successors, (2243) [2022-11-20 11:55:11,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7786 states to 7786 states and 10848 transitions. [2022-11-20 11:55:11,306 INFO L78 Accepts]: Start accepts. Automaton has 7786 states and 10848 transitions. Word has length 1335 [2022-11-20 11:55:11,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:11,306 INFO L495 AbstractCegarLoop]: Abstraction has 7786 states and 10848 transitions. [2022-11-20 11:55:11,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 2 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (133), 2 states have call predecessors, (133), 2 states have call successors, (133) [2022-11-20 11:55:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 7786 states and 10848 transitions. [2022-11-20 11:55:11,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1279 [2022-11-20 11:55:11,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:11,325 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 23, 23, 20, 20, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:11,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:11,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:11,526 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:55:11,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:11,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1651886938, now seen corresponding path program 1 times [2022-11-20 11:55:11,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:11,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192967935] [2022-11-20 11:55:11,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:11,532 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:11,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:11,533 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:11,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2022-11-20 11:55:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:20,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 6612 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:55:20,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4285 backedges. 1089 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2022-11-20 11:55:20,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:20,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:20,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192967935] [2022-11-20 11:55:20,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192967935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:20,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:20,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:55:20,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716573771] [2022-11-20 11:55:20,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:20,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:20,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:20,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:20,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:20,867 INFO L87 Difference]: Start difference. First operand 7786 states and 10848 transitions. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 4 states have call successors, (133), 2 states have call predecessors, (133), 3 states have return successors, (132), 4 states have call predecessors, (132), 4 states have call successors, (132) [2022-11-20 11:55:22,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:22,918 INFO L93 Difference]: Finished difference Result 15563 states and 21712 transitions. [2022-11-20 11:55:22,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:22,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 4 states have call successors, (133), 2 states have call predecessors, (133), 3 states have return successors, (132), 4 states have call predecessors, (132), 4 states have call successors, (132) Word has length 1278 [2022-11-20 11:55:22,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:22,943 INFO L225 Difference]: With dead ends: 15563 [2022-11-20 11:55:22,944 INFO L226 Difference]: Without dead ends: 7786 [2022-11-20 11:55:22,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1278 GetRequests, 1275 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:22,962 INFO L413 NwaCegarLoop]: 5162 mSDtfsCounter, 68 mSDsluCounter, 10113 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 15275 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:22,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 15275 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 11:55:22,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7786 states. [2022-11-20 11:55:24,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7786 to 7786. [2022-11-20 11:55:24,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7786 states, 5221 states have (on average 1.2302240950009578) internal successors, (6423), 5302 states have internal predecessors, (6423), 2180 states have call successors, (2180), 374 states have call predecessors, (2180), 382 states have return successors, (2243), 2174 states have call predecessors, (2243), 2177 states have call successors, (2243) [2022-11-20 11:55:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7786 states to 7786 states and 10846 transitions. [2022-11-20 11:55:24,462 INFO L78 Accepts]: Start accepts. Automaton has 7786 states and 10846 transitions. Word has length 1278 [2022-11-20 11:55:24,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:24,463 INFO L495 AbstractCegarLoop]: Abstraction has 7786 states and 10846 transitions. [2022-11-20 11:55:24,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 4 states have call successors, (133), 2 states have call predecessors, (133), 3 states have return successors, (132), 4 states have call predecessors, (132), 4 states have call successors, (132) [2022-11-20 11:55:24,463 INFO L276 IsEmpty]: Start isEmpty. Operand 7786 states and 10846 transitions. [2022-11-20 11:55:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1320 [2022-11-20 11:55:24,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:24,486 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 24, 24, 21, 21, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:24,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2022-11-20 11:55:24,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:24,687 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:55:24,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:24,687 INFO L85 PathProgramCache]: Analyzing trace with hash -805292755, now seen corresponding path program 1 times [2022-11-20 11:55:24,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:24,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095151025] [2022-11-20 11:55:24,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:24,691 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:24,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:24,692 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:24,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2022-11-20 11:55:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:34,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 6721 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:55:34,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:35,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4492 backedges. 1251 proven. 0 refuted. 0 times theorem prover too weak. 3241 trivial. 0 not checked. [2022-11-20 11:55:35,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:35,234 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:35,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095151025] [2022-11-20 11:55:35,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2095151025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:35,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:35,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:55:35,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244935554] [2022-11-20 11:55:35,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:35,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:55:35,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:35,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:55:35,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:55:35,238 INFO L87 Difference]: Start difference. First operand 7786 states and 10846 transitions. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 4 states have call successors, (138), 2 states have call predecessors, (138), 3 states have return successors, (137), 4 states have call predecessors, (137), 4 states have call successors, (137) [2022-11-20 11:55:37,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:55:37,006 INFO L93 Difference]: Finished difference Result 15595 states and 21830 transitions. [2022-11-20 11:55:37,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:55:37,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 4 states have call successors, (138), 2 states have call predecessors, (138), 3 states have return successors, (137), 4 states have call predecessors, (137), 4 states have call successors, (137) Word has length 1319 [2022-11-20 11:55:37,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:55:37,034 INFO L225 Difference]: With dead ends: 15595 [2022-11-20 11:55:37,034 INFO L226 Difference]: Without dead ends: 7826 [2022-11-20 11:55:37,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1319 GetRequests, 1316 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:55:37,055 INFO L413 NwaCegarLoop]: 5158 mSDtfsCounter, 55 mSDsluCounter, 10256 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 15414 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 11:55:37,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 15414 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 11:55:37,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7826 states. [2022-11-20 11:55:38,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7826 to 7826. [2022-11-20 11:55:38,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7826 states, 5257 states have (on average 1.2316910785619175) internal successors, (6475), 5340 states have internal predecessors, (6475), 2182 states have call successors, (2182), 374 states have call predecessors, (2182), 384 states have return successors, (2247), 2176 states have call predecessors, (2247), 2179 states have call successors, (2247) [2022-11-20 11:55:38,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7826 states to 7826 states and 10904 transitions. [2022-11-20 11:55:38,584 INFO L78 Accepts]: Start accepts. Automaton has 7826 states and 10904 transitions. Word has length 1319 [2022-11-20 11:55:38,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:55:38,585 INFO L495 AbstractCegarLoop]: Abstraction has 7826 states and 10904 transitions. [2022-11-20 11:55:38,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 4 states have call successors, (138), 2 states have call predecessors, (138), 3 states have return successors, (137), 4 states have call predecessors, (137), 4 states have call successors, (137) [2022-11-20 11:55:38,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7826 states and 10904 transitions. [2022-11-20 11:55:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1719 [2022-11-20 11:55:38,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:55:38,625 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 45, 45, 30, 30, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 21, 21, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:55:38,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2022-11-20 11:55:38,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:38,838 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:55:38,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:55:38,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1382793172, now seen corresponding path program 1 times [2022-11-20 11:55:38,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:55:38,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565244933] [2022-11-20 11:55:38,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:55:38,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:55:38,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:55:38,845 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:55:38,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2022-11-20 11:55:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:55:49,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 7384 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:55:49,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:55:49,964 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:55:49,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 26 [2022-11-20 11:55:58,924 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-20 11:55:58,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 30 [2022-11-20 11:55:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 14145 backedges. 2049 proven. 0 refuted. 0 times theorem prover too weak. 12096 trivial. 0 not checked. [2022-11-20 11:55:59,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:55:59,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:55:59,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565244933] [2022-11-20 11:55:59,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565244933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:55:59,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:55:59,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:55:59,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68979446] [2022-11-20 11:55:59,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:55:59,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:55:59,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:55:59,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:55:59,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2022-11-20 11:55:59,092 INFO L87 Difference]: Start difference. First operand 7826 states and 10904 transitions. Second operand has 10 states, 9 states have (on average 50.111111111111114) internal successors, (451), 10 states have internal predecessors, (451), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:56:00,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:56:02,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:56:05,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:56:07,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:56:09,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:09,273 INFO L93 Difference]: Finished difference Result 15743 states and 22001 transitions. [2022-11-20 11:56:09,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:56:09,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 50.111111111111114) internal successors, (451), 10 states have internal predecessors, (451), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) Word has length 1718 [2022-11-20 11:56:09,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:09,302 INFO L225 Difference]: With dead ends: 15743 [2022-11-20 11:56:09,302 INFO L226 Difference]: Without dead ends: 7880 [2022-11-20 11:56:09,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1717 GetRequests, 1708 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2022-11-20 11:56:09,321 INFO L413 NwaCegarLoop]: 5133 mSDtfsCounter, 156 mSDsluCounter, 28304 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 33437 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 2370 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:09,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 33437 Invalid, 2436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 2370 Unchecked, 8.4s Time] [2022-11-20 11:56:09,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7880 states. [2022-11-20 11:56:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7880 to 7880. [2022-11-20 11:56:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7880 states, 5303 states have (on average 1.2323213275504432) internal successors, (6535), 5384 states have internal predecessors, (6535), 2186 states have call successors, (2186), 380 states have call predecessors, (2186), 388 states have return successors, (2251), 2180 states have call predecessors, (2251), 2183 states have call successors, (2251) [2022-11-20 11:56:10,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7880 states to 7880 states and 10972 transitions. [2022-11-20 11:56:10,832 INFO L78 Accepts]: Start accepts. Automaton has 7880 states and 10972 transitions. Word has length 1718 [2022-11-20 11:56:10,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:10,833 INFO L495 AbstractCegarLoop]: Abstraction has 7880 states and 10972 transitions. [2022-11-20 11:56:10,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 50.111111111111114) internal successors, (451), 10 states have internal predecessors, (451), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:56:10,833 INFO L276 IsEmpty]: Start isEmpty. Operand 7880 states and 10972 transitions. [2022-11-20 11:56:10,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1320 [2022-11-20 11:56:10,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:10,850 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 24, 24, 21, 21, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:10,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:11,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:11,051 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:56:11,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:11,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1353551437, now seen corresponding path program 1 times [2022-11-20 11:56:11,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:11,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034611474] [2022-11-20 11:56:11,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:11,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:11,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:11,056 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:11,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2022-11-20 11:56:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:20,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 6721 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:56:20,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:21,300 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:56:21,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 26 [2022-11-20 11:56:27,539 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-20 11:56:27,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 30 [2022-11-20 11:56:27,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4492 backedges. 1293 proven. 0 refuted. 0 times theorem prover too weak. 3199 trivial. 0 not checked. [2022-11-20 11:56:27,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:27,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:27,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034611474] [2022-11-20 11:56:27,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034611474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:27,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:27,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:56:27,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690813395] [2022-11-20 11:56:27,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:27,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:56:27,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:27,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:56:27,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:56:27,570 INFO L87 Difference]: Start difference. First operand 7880 states and 10972 transitions. Second operand has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:56:29,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:56:31,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:56:33,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:56:36,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:56:37,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:56:37,681 INFO L93 Difference]: Finished difference Result 15777 states and 22033 transitions. [2022-11-20 11:56:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:56:37,683 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) Word has length 1319 [2022-11-20 11:56:37,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:56:37,707 INFO L225 Difference]: With dead ends: 15777 [2022-11-20 11:56:37,707 INFO L226 Difference]: Without dead ends: 7884 [2022-11-20 11:56:37,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 1309 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 11:56:37,727 INFO L413 NwaCegarLoop]: 5136 mSDtfsCounter, 155 mSDsluCounter, 19272 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 24408 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 1166 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:56:37,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 24408 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 1166 Unchecked, 8.5s Time] [2022-11-20 11:56:37,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7884 states. [2022-11-20 11:56:39,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7884 to 7880. [2022-11-20 11:56:39,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7880 states, 5303 states have (on average 1.2323213275504432) internal successors, (6535), 5384 states have internal predecessors, (6535), 2186 states have call successors, (2186), 380 states have call predecessors, (2186), 388 states have return successors, (2251), 2180 states have call predecessors, (2251), 2183 states have call successors, (2251) [2022-11-20 11:56:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7880 states to 7880 states and 10972 transitions. [2022-11-20 11:56:39,312 INFO L78 Accepts]: Start accepts. Automaton has 7880 states and 10972 transitions. Word has length 1319 [2022-11-20 11:56:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:56:39,313 INFO L495 AbstractCegarLoop]: Abstraction has 7880 states and 10972 transitions. [2022-11-20 11:56:39,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:56:39,313 INFO L276 IsEmpty]: Start isEmpty. Operand 7880 states and 10972 transitions. [2022-11-20 11:56:39,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1320 [2022-11-20 11:56:39,331 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:56:39,332 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 24, 24, 21, 21, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:56:39,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2022-11-20 11:56:39,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:39,535 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:56:39,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:56:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash 97122611, now seen corresponding path program 1 times [2022-11-20 11:56:39,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:56:39,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665778337] [2022-11-20 11:56:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:56:39,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:56:39,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:56:39,540 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:56:39,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2022-11-20 11:56:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:56:49,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 6721 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:56:49,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:56:49,911 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:56:49,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 26 [2022-11-20 11:56:52,102 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_atl1c_disable_l0s_l1_#in~hw.offset_BEFORE_CALL_3| (_ BitVec 64)) (v_arrayElimCell_16 (_ BitVec 8)) (v_arrayElimCell_15 (_ BitVec 8)) (v_atl1c_disable_l0s_l1_~hw.base_BEFORE_CALL_3 (_ BitVec 64))) (= ((_ extract 15 8) ((_ extract 15 0) (bvand (_ bv65151 32) ((_ zero_extend 16) (concat v_arrayElimCell_16 v_arrayElimCell_15))))) (select (select |c_#memory_int| v_atl1c_disable_l0s_l1_~hw.base_BEFORE_CALL_3) (bvadd |v_atl1c_disable_l0s_l1_#in~hw.offset_BEFORE_CALL_3| (_ bv75 64))))) is different from true [2022-11-20 11:56:57,060 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-20 11:56:57,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 30 [2022-11-20 11:56:57,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4492 backedges. 1293 proven. 0 refuted. 0 times theorem prover too weak. 3199 trivial. 0 not checked. [2022-11-20 11:56:57,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:56:57,080 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:56:57,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665778337] [2022-11-20 11:56:57,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665778337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:56:57,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:56:57,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:56:57,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024160717] [2022-11-20 11:56:57,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:56:57,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:56:57,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:56:57,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:56:57,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=57, Unknown=1, NotChecked=14, Total=90 [2022-11-20 11:56:57,084 INFO L87 Difference]: Start difference. First operand 7880 states and 10972 transitions. Second operand has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:56:58,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:57:00,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:57:03,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:57:06,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:06,360 INFO L93 Difference]: Finished difference Result 15785 states and 22043 transitions. [2022-11-20 11:57:06,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:57:06,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) Word has length 1319 [2022-11-20 11:57:06,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:06,401 INFO L225 Difference]: With dead ends: 15785 [2022-11-20 11:57:06,401 INFO L226 Difference]: Without dead ends: 7892 [2022-11-20 11:57:06,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 1309 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=18, Invalid=57, Unknown=1, NotChecked=14, Total=90 [2022-11-20 11:57:06,425 INFO L413 NwaCegarLoop]: 5135 mSDtfsCounter, 148 mSDsluCounter, 28344 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 33479 SdHoareTripleChecker+Invalid, 7553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 7487 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:06,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 33479 Invalid, 7553 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 2 Unknown, 7487 Unchecked, 7.6s Time] [2022-11-20 11:57:06,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7892 states. [2022-11-20 11:57:08,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7892 to 7884. [2022-11-20 11:57:08,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 5307 states have (on average 1.2325230827209346) internal successors, (6541), 5388 states have internal predecessors, (6541), 2186 states have call successors, (2186), 380 states have call predecessors, (2186), 388 states have return successors, (2251), 2180 states have call predecessors, (2251), 2183 states have call successors, (2251) [2022-11-20 11:57:08,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 10978 transitions. [2022-11-20 11:57:08,065 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 10978 transitions. Word has length 1319 [2022-11-20 11:57:08,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:08,066 INFO L495 AbstractCegarLoop]: Abstraction has 7884 states and 10978 transitions. [2022-11-20 11:57:08,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:57:08,066 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 10978 transitions. [2022-11-20 11:57:08,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1719 [2022-11-20 11:57:08,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:08,092 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 45, 45, 30, 30, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 21, 21, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:08,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:08,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:08,292 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:57:08,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:08,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1553237040, now seen corresponding path program 1 times [2022-11-20 11:57:08,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:08,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625102275] [2022-11-20 11:57:08,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:08,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:08,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:08,298 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:08,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2022-11-20 11:57:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:18,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 7388 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:57:18,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:19,033 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:57:19,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 26 [2022-11-20 11:57:21,221 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_23 (_ BitVec 8)) (|v_atl1c_disable_l0s_l1_#in~hw.offset_BEFORE_CALL_4| (_ BitVec 64)) (v_arrayElimCell_22 (_ BitVec 8)) (v_atl1c_disable_l0s_l1_~hw.base_BEFORE_CALL_4 (_ BitVec 64))) (= ((_ extract 15 8) ((_ extract 15 0) (bvand (_ bv65151 32) ((_ zero_extend 16) (concat v_arrayElimCell_23 v_arrayElimCell_22))))) (select (select |c_#memory_int| v_atl1c_disable_l0s_l1_~hw.base_BEFORE_CALL_4) (bvadd |v_atl1c_disable_l0s_l1_#in~hw.offset_BEFORE_CALL_4| (_ bv75 64))))) is different from true [2022-11-20 11:57:25,617 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-20 11:57:25,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 30 [2022-11-20 11:57:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 14145 backedges. 2049 proven. 0 refuted. 0 times theorem prover too weak. 12096 trivial. 0 not checked. [2022-11-20 11:57:25,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:25,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:25,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625102275] [2022-11-20 11:57:25,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625102275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:25,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:25,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:57:25,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482343591] [2022-11-20 11:57:25,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:25,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:57:25,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:25,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:57:25,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=57, Unknown=1, NotChecked=14, Total=90 [2022-11-20 11:57:25,652 INFO L87 Difference]: Start difference. First operand 7884 states and 10978 transitions. Second operand has 10 states, 9 states have (on average 50.111111111111114) internal successors, (451), 10 states have internal predecessors, (451), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:57:28,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:57:31,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:57:33,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:57:35,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:35,176 INFO L93 Difference]: Finished difference Result 15785 states and 22045 transitions. [2022-11-20 11:57:35,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:57:35,178 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 50.111111111111114) internal successors, (451), 10 states have internal predecessors, (451), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) Word has length 1718 [2022-11-20 11:57:35,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:35,203 INFO L225 Difference]: With dead ends: 15785 [2022-11-20 11:57:35,203 INFO L226 Difference]: Without dead ends: 7888 [2022-11-20 11:57:35,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1717 GetRequests, 1708 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=18, Invalid=57, Unknown=1, NotChecked=14, Total=90 [2022-11-20 11:57:35,224 INFO L413 NwaCegarLoop]: 5135 mSDtfsCounter, 149 mSDsluCounter, 28341 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 33476 SdHoareTripleChecker+Invalid, 7540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 7474 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:35,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 33476 Invalid, 7540 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 7474 Unchecked, 7.7s Time] [2022-11-20 11:57:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7888 states. [2022-11-20 11:57:37,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7888 to 7880. [2022-11-20 11:57:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7880 states, 5303 states have (on average 1.2323213275504432) internal successors, (6535), 5384 states have internal predecessors, (6535), 2186 states have call successors, (2186), 380 states have call predecessors, (2186), 388 states have return successors, (2251), 2180 states have call predecessors, (2251), 2183 states have call successors, (2251) [2022-11-20 11:57:37,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7880 states to 7880 states and 10972 transitions. [2022-11-20 11:57:37,069 INFO L78 Accepts]: Start accepts. Automaton has 7880 states and 10972 transitions. Word has length 1718 [2022-11-20 11:57:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:37,070 INFO L495 AbstractCegarLoop]: Abstraction has 7880 states and 10972 transitions. [2022-11-20 11:57:37,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 50.111111111111114) internal successors, (451), 10 states have internal predecessors, (451), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:57:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7880 states and 10972 transitions. [2022-11-20 11:57:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1320 [2022-11-20 11:57:37,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:37,093 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 24, 24, 21, 21, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:37,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:37,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:37,294 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:57:37,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:37,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1669488461, now seen corresponding path program 1 times [2022-11-20 11:57:37,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:37,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602051065] [2022-11-20 11:57:37,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:37,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:57:37,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:37,300 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:57:37,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2022-11-20 11:57:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:48,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 6721 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:57:48,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:49,131 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:57:49,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 26 [2022-11-20 11:57:51,346 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v_atl1c_disable_l0s_l1_#in~hw.offset_BEFORE_CALL_5| (_ BitVec 64)) (v_arrayElimCell_29 (_ BitVec 8)) (v_atl1c_disable_l0s_l1_~hw.base_BEFORE_CALL_5 (_ BitVec 64)) (v_arrayElimCell_30 (_ BitVec 8))) (= (select (select |c_#memory_int| v_atl1c_disable_l0s_l1_~hw.base_BEFORE_CALL_5) (bvadd |v_atl1c_disable_l0s_l1_#in~hw.offset_BEFORE_CALL_5| (_ bv75 64))) ((_ extract 15 8) ((_ extract 15 0) (bvand (_ bv65151 32) ((_ zero_extend 16) (concat v_arrayElimCell_30 v_arrayElimCell_29))))))) is different from true [2022-11-20 11:57:57,542 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-20 11:57:57,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 30 [2022-11-20 11:57:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4492 backedges. 1293 proven. 0 refuted. 0 times theorem prover too weak. 3199 trivial. 0 not checked. [2022-11-20 11:57:57,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:57,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:57,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602051065] [2022-11-20 11:57:57,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602051065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:57,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:57,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:57:57,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090102438] [2022-11-20 11:57:57,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:57,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:57:57,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:57,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:57:57,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=57, Unknown=1, NotChecked=14, Total=90 [2022-11-20 11:57:57,571 INFO L87 Difference]: Start difference. First operand 7880 states and 10972 transitions. Second operand has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:58:00,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:58:03,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:58:05,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:58:07,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:58:07,307 INFO L93 Difference]: Finished difference Result 15793 states and 22055 transitions. [2022-11-20 11:58:07,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:58:07,309 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) Word has length 1319 [2022-11-20 11:58:07,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:58:07,338 INFO L225 Difference]: With dead ends: 15793 [2022-11-20 11:58:07,338 INFO L226 Difference]: Without dead ends: 7900 [2022-11-20 11:58:07,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 1309 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=18, Invalid=57, Unknown=1, NotChecked=14, Total=90 [2022-11-20 11:58:07,361 INFO L413 NwaCegarLoop]: 5135 mSDtfsCounter, 148 mSDsluCounter, 28341 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 33476 SdHoareTripleChecker+Invalid, 7542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 7476 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-20 11:58:07,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 33476 Invalid, 7542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 7476 Unchecked, 7.9s Time] [2022-11-20 11:58:07,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2022-11-20 11:58:09,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 7888. [2022-11-20 11:58:09,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7888 states, 5311 states have (on average 1.2327245339860666) internal successors, (6547), 5392 states have internal predecessors, (6547), 2186 states have call successors, (2186), 380 states have call predecessors, (2186), 388 states have return successors, (2251), 2180 states have call predecessors, (2251), 2183 states have call successors, (2251) [2022-11-20 11:58:09,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7888 states to 7888 states and 10984 transitions. [2022-11-20 11:58:09,138 INFO L78 Accepts]: Start accepts. Automaton has 7888 states and 10984 transitions. Word has length 1319 [2022-11-20 11:58:09,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:58:09,139 INFO L495 AbstractCegarLoop]: Abstraction has 7888 states and 10984 transitions. [2022-11-20 11:58:09,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:58:09,139 INFO L276 IsEmpty]: Start isEmpty. Operand 7888 states and 10984 transitions. [2022-11-20 11:58:09,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1719 [2022-11-20 11:58:09,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:58:09,184 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 45, 45, 30, 30, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 21, 21, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:58:09,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2022-11-20 11:58:09,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:58:09,411 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:58:09,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:09,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1276386224, now seen corresponding path program 1 times [2022-11-20 11:58:09,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:58:09,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65636761] [2022-11-20 11:58:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:09,418 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:58:09,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:58:09,420 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:58:09,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2022-11-20 11:58:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:21,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 7388 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:58:21,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:21,990 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:58:21,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 26 [2022-11-20 11:58:34,586 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-20 11:58:34,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 30 [2022-11-20 11:58:34,621 INFO L134 CoverageAnalysis]: Checked inductivity of 14145 backedges. 2049 proven. 0 refuted. 0 times theorem prover too weak. 12096 trivial. 0 not checked. [2022-11-20 11:58:34,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:58:34,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:58:34,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65636761] [2022-11-20 11:58:34,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65636761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:58:34,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:58:34,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:58:34,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458393888] [2022-11-20 11:58:34,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:58:34,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:58:34,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:58:34,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:58:34,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2022-11-20 11:58:34,626 INFO L87 Difference]: Start difference. First operand 7888 states and 10984 transitions. Second operand has 10 states, 9 states have (on average 50.111111111111114) internal successors, (451), 10 states have internal predecessors, (451), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:58:37,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:58:40,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:58:42,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:58:44,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:58:44,199 INFO L93 Difference]: Finished difference Result 15801 states and 22067 transitions. [2022-11-20 11:58:44,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:58:44,201 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 50.111111111111114) internal successors, (451), 10 states have internal predecessors, (451), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) Word has length 1718 [2022-11-20 11:58:44,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:58:44,225 INFO L225 Difference]: With dead ends: 15801 [2022-11-20 11:58:44,226 INFO L226 Difference]: Without dead ends: 7900 [2022-11-20 11:58:44,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1717 GetRequests, 1708 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2022-11-20 11:58:44,243 INFO L413 NwaCegarLoop]: 5135 mSDtfsCounter, 149 mSDsluCounter, 32857 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 37992 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 2974 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-20 11:58:44,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 37992 Invalid, 3040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 2974 Unchecked, 7.8s Time] [2022-11-20 11:58:44,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2022-11-20 11:58:45,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 7884. [2022-11-20 11:58:45,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 5307 states have (on average 1.2325230827209346) internal successors, (6541), 5388 states have internal predecessors, (6541), 2186 states have call successors, (2186), 380 states have call predecessors, (2186), 388 states have return successors, (2251), 2180 states have call predecessors, (2251), 2183 states have call successors, (2251) [2022-11-20 11:58:46,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 10978 transitions. [2022-11-20 11:58:46,003 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 10978 transitions. Word has length 1718 [2022-11-20 11:58:46,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:58:46,003 INFO L495 AbstractCegarLoop]: Abstraction has 7884 states and 10978 transitions. [2022-11-20 11:58:46,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 50.111111111111114) internal successors, (451), 10 states have internal predecessors, (451), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:58:46,004 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 10978 transitions. [2022-11-20 11:58:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1320 [2022-11-20 11:58:46,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:58:46,025 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 24, 24, 21, 21, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:58:46,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2022-11-20 11:58:46,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:58:46,226 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:58:46,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:58:46,226 INFO L85 PathProgramCache]: Analyzing trace with hash -297833931, now seen corresponding path program 1 times [2022-11-20 11:58:46,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:58:46,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260683949] [2022-11-20 11:58:46,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:58:46,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:58:46,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:58:46,232 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:58:46,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2022-11-20 11:58:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:58:57,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 6723 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:58:57,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:58:58,253 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:58:58,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 26 [2022-11-20 11:59:00,467 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_43 (_ BitVec 8)) (v_arrayElimCell_44 (_ BitVec 8)) (|v_atl1c_disable_l0s_l1_#in~hw.offset_BEFORE_CALL_7| (_ BitVec 64)) (v_atl1c_disable_l0s_l1_~hw.base_BEFORE_CALL_7 (_ BitVec 64))) (= ((_ extract 15 8) ((_ extract 15 0) (bvand (_ bv65151 32) ((_ zero_extend 16) (concat v_arrayElimCell_44 v_arrayElimCell_43))))) (select (select |c_#memory_int| v_atl1c_disable_l0s_l1_~hw.base_BEFORE_CALL_7) (bvadd |v_atl1c_disable_l0s_l1_#in~hw.offset_BEFORE_CALL_7| (_ bv75 64))))) is different from true [2022-11-20 11:59:06,632 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-20 11:59:06,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 30 [2022-11-20 11:59:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 4492 backedges. 1293 proven. 0 refuted. 0 times theorem prover too weak. 3199 trivial. 0 not checked. [2022-11-20 11:59:06,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:59:06,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:59:06,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260683949] [2022-11-20 11:59:06,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260683949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:06,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:06,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:59:06,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266693858] [2022-11-20 11:59:06,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:06,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:59:06,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:59:06,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:59:06,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=57, Unknown=1, NotChecked=14, Total=90 [2022-11-20 11:59:06,656 INFO L87 Difference]: Start difference. First operand 7884 states and 10978 transitions. Second operand has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:59:10,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:12,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:15,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:16,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:59:16,946 INFO L93 Difference]: Finished difference Result 15793 states and 22055 transitions. [2022-11-20 11:59:16,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:59:16,948 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) Word has length 1319 [2022-11-20 11:59:16,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:59:16,977 INFO L225 Difference]: With dead ends: 15793 [2022-11-20 11:59:16,977 INFO L226 Difference]: Without dead ends: 7896 [2022-11-20 11:59:16,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 1309 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=18, Invalid=57, Unknown=1, NotChecked=14, Total=90 [2022-11-20 11:59:16,998 INFO L413 NwaCegarLoop]: 5135 mSDtfsCounter, 142 mSDsluCounter, 32916 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 38051 SdHoareTripleChecker+Invalid, 8116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 8050 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-20 11:59:16,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 38051 Invalid, 8116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 8050 Unchecked, 8.5s Time] [2022-11-20 11:59:17,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2022-11-20 11:59:18,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 7888. [2022-11-20 11:59:18,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7888 states, 5311 states have (on average 1.2327245339860666) internal successors, (6547), 5392 states have internal predecessors, (6547), 2186 states have call successors, (2186), 380 states have call predecessors, (2186), 388 states have return successors, (2251), 2180 states have call predecessors, (2251), 2183 states have call successors, (2251) [2022-11-20 11:59:18,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7888 states to 7888 states and 10984 transitions. [2022-11-20 11:59:18,734 INFO L78 Accepts]: Start accepts. Automaton has 7888 states and 10984 transitions. Word has length 1319 [2022-11-20 11:59:18,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:59:18,735 INFO L495 AbstractCegarLoop]: Abstraction has 7888 states and 10984 transitions. [2022-11-20 11:59:18,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 10 states have internal predecessors, (452), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:59:18,736 INFO L276 IsEmpty]: Start isEmpty. Operand 7888 states and 10984 transitions. [2022-11-20 11:59:18,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1719 [2022-11-20 11:59:18,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:59:18,779 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 45, 45, 30, 30, 29, 29, 29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 21, 21, 17, 17, 17, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:59:18,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2022-11-20 11:59:19,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:59:19,003 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-20 11:59:19,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:59:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash 866911886, now seen corresponding path program 1 times [2022-11-20 11:59:19,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:59:19,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753051306] [2022-11-20 11:59:19,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:59:19,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 11:59:19,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:59:19,012 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 11:59:19,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad40038-a2f1-4fbb-a5f6-e3aa21bcbcf9/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2022-11-20 11:59:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:59:30,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 7390 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-20 11:59:30,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:59:31,699 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:59:31,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 26 [2022-11-20 11:59:33,889 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_atl1c_disable_l0s_l1_~hw.base_BEFORE_CALL_8 (_ BitVec 64)) (|v_atl1c_disable_l0s_l1_#in~hw.offset_BEFORE_CALL_8| (_ BitVec 64)) (v_arrayElimCell_50 (_ BitVec 8)) (v_arrayElimCell_51 (_ BitVec 8))) (= ((_ extract 15 8) ((_ extract 15 0) (bvand (_ bv65151 32) ((_ zero_extend 16) (concat v_arrayElimCell_51 v_arrayElimCell_50))))) (select (select |c_#memory_int| v_atl1c_disable_l0s_l1_~hw.base_BEFORE_CALL_8) (bvadd |v_atl1c_disable_l0s_l1_#in~hw.offset_BEFORE_CALL_8| (_ bv75 64))))) is different from true [2022-11-20 11:59:40,061 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-20 11:59:40,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 30 [2022-11-20 11:59:40,089 INFO L134 CoverageAnalysis]: Checked inductivity of 14145 backedges. 2049 proven. 0 refuted. 0 times theorem prover too weak. 12096 trivial. 0 not checked. [2022-11-20 11:59:40,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:59:40,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:59:40,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753051306] [2022-11-20 11:59:40,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753051306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:59:40,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:59:40,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-20 11:59:40,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321950860] [2022-11-20 11:59:40,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:59:40,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 11:59:40,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:59:40,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 11:59:40,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=57, Unknown=1, NotChecked=14, Total=90 [2022-11-20 11:59:40,093 INFO L87 Difference]: Start difference. First operand 7888 states and 10984 transitions. Second operand has 10 states, 9 states have (on average 50.111111111111114) internal successors, (451), 10 states have internal predecessors, (451), 7 states have call successors, (138), 4 states have call predecessors, (138), 5 states have return successors, (137), 6 states have call predecessors, (137), 7 states have call successors, (137) [2022-11-20 11:59:43,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 11:59:45,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []