./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a --- 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-2329fc7 [2022-12-14 07:51:12,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:51:12,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:51:12,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:51:12,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:51:12,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:51:12,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:51:12,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:51:12,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:51:12,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:51:12,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:51:12,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:51:12,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:51:12,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:51:12,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:51:12,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:51:12,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:51:12,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:51:12,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:51:12,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:51:12,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:51:12,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:51:12,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:51:12,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:51:12,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:51:12,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:51:12,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:51:12,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:51:12,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:51:12,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:51:12,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:51:12,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:51:12,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:51:12,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:51:12,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:51:12,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:51:12,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:51:12,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:51:12,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:51:12,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:51:12,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:51:12,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:51:12,508 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:51:12,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:51:12,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:51:12,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:51:12,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:51:12,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:51:12,510 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:51:12,510 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:51:12,510 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:51:12,510 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:51:12,510 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:51:12,510 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:51:12,510 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:51:12,511 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:51:12,511 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:51:12,511 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:51:12,511 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:51:12,511 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:51:12,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:51:12,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:51:12,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:51:12,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:51:12,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:51:12,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:51:12,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:51:12,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:51:12,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:51:12,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:51:12,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:51:12,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:51:12,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:51:12,514 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:51:12,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:51:12,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:51:12,514 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:51:12,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:51:12,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:51:12,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:51:12,515 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_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2022-12-14 07:51:12,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:51:12,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:51:12,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:51:12,737 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:51:12,737 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:51:12,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-12-14 07:51:15,290 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:51:15,655 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:51:15,656 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-12-14 07:51:15,679 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/data/fac715284/cb0f47e940bc42b091f5f1f03ee74f49/FLAGe139bbe9d [2022-12-14 07:51:15,689 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/data/fac715284/cb0f47e940bc42b091f5f1f03ee74f49 [2022-12-14 07:51:15,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:51:15,692 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:51:15,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:51:15,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:51:15,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:51:15,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:51:15" (1/1) ... [2022-12-14 07:51:15,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60206e2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:15, skipping insertion in model container [2022-12-14 07:51:15,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:51:15" (1/1) ... [2022-12-14 07:51:15,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:51:15,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:51:16,280 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:51:16,288 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 07:51:16,295 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:51:16,303 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 07:51:16,311 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:51:16,434 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:51:16,438 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:51:16,438 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 07:51:16,444 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 07:51:16,449 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 07:51:16,454 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 07:51:16,469 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 07:51:16,474 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:51:16,476 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 07:51:16,498 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 07:51:16,502 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-12-14 07:51:16,525 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 07:51:16,526 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 07:51:16,567 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 07:51:16,567 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 07:51:16,574 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:51:16,575 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:16,588 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 07:51:16,671 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 07:51:16,770 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 07:51:16,771 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:51:16,772 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 07:51:16,772 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 07:51:16,774 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 07:51:16,775 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:51:16,791 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:51:16,792 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:51:16,792 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,792 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,793 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,793 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,794 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,794 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,795 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:16,798 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:51:16,799 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:16,801 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:51:16,803 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:51:16,804 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:51:16,805 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,805 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,806 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,807 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:51:16,808 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 07:51:16,809 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 07:51:16,810 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 07:51:16,811 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 07:51:16,811 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:51:16,821 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,831 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,836 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,837 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,838 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,838 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,839 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,839 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,839 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,840 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,840 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,840 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,841 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,841 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,842 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,842 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,842 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,844 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,844 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,844 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:16,845 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,845 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:16,846 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 07:51:16,847 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,847 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,848 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,849 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,850 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,850 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,850 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,851 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,851 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,851 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,852 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:51:16,852 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,852 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,854 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 07:51:16,855 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 07:51:16,856 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,857 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,857 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,858 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,858 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,859 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,860 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,861 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 07:51:16,861 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 07:51:16,866 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,866 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 07:51:16,866 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:16,866 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:16,867 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:16,867 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:16,868 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,870 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,870 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:51:16,870 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,871 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,871 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,872 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,872 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,872 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,873 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,873 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,874 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,874 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,875 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,875 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,876 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,877 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,877 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,877 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,883 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 07:51:16,884 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,887 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,887 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,889 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,889 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,889 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,890 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,890 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 07:51:16,891 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:16,892 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 07:51:16,893 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,894 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:16,894 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,895 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,903 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,905 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,905 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,910 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,917 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 07:51:16,919 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,920 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,922 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,922 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,923 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 07:51:16,924 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:16,924 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:16,924 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:16,925 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,926 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,926 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 07:51:16,926 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,928 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,931 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,933 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,934 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,935 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 07:51:16,936 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 07:51:16,937 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:51:16,938 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:51:16,939 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:51:16,939 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 07:51:16,939 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 07:51:16,946 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,947 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 07:51:16,948 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-12-14 07:51:16,948 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,950 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,951 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:16,952 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:51:16,953 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:51:16,954 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,955 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:16,955 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:16,955 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:16,957 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,957 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,958 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,958 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 07:51:16,959 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 07:51:16,959 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 07:51:16,964 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:51:16,964 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:51:16,965 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:51:16,969 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 07:51:16,972 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 07:51:16,976 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 07:51:16,980 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 07:51:16,990 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,991 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,991 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,995 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,995 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,995 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,997 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,997 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,997 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,997 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 07:51:16,998 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:16,998 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:16,998 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,002 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 07:51:17,003 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 07:51:17,003 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:51:17,007 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,015 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:17,234 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 07:51:17,235 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:51:17,235 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:51:17,238 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:51:17,240 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 07:51:17,240 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 07:51:17,246 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 07:51:17,248 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 07:51:17,252 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 07:51:17,253 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 07:51:17,254 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 07:51:17,254 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 07:51:17,255 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 07:51:17,255 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:51:17,256 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:51:17,256 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 07:51:17,257 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 07:51:17,257 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 07:51:17,258 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 07:51:17,258 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 07:51:17,258 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 07:51:17,296 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 07:51:17,296 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 07:51:17,303 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 07:51:17,675 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_e22c40f4-e911-4645-8239-6742fd545e3f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2022-12-14 07:51:17,677 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_e22c40f4-e911-4645-8239-6742fd545e3f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2022-12-14 07:51:17,678 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_e22c40f4-e911-4645-8239-6742fd545e3f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2022-12-14 07:51:17,678 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_e22c40f4-e911-4645-8239-6742fd545e3f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2022-12-14 07:51:17,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:51:17,723 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:51:17,796 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 07:51:17,796 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 07:51:17,797 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 07:51:17,797 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 07:51:17,797 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 07:51:17,802 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:51:17,802 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 07:51:17,803 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 07:51:17,804 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 07:51:17,805 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 07:51:17,805 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 07:51:17,807 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 07:51:17,808 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:51:17,808 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 07:51:17,809 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 07:51:17,810 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-12-14 07:51:17,811 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 07:51:17,811 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 07:51:17,813 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 07:51:17,813 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 07:51:17,814 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:51:17,814 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:17,815 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 07:51:17,817 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 07:51:17,820 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 07:51:17,821 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:51:17,821 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 07:51:17,821 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 07:51:17,823 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 07:51:17,823 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:51:17,824 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:51:17,825 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:51:17,825 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,836 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,836 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,837 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,837 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,837 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,837 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:17,838 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 07:51:17,839 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:17,840 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:51:17,840 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:51:17,841 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:51:17,841 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,841 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,842 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,842 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:51:17,842 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 07:51:17,843 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 07:51:17,843 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 07:51:17,844 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 07:51:17,844 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:51:17,845 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,845 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,845 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,846 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,846 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,846 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,846 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,847 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,847 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,847 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,847 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,847 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,848 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,848 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,848 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,848 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,849 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,849 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,850 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,850 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:17,850 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,850 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:17,851 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 07:51:17,851 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,852 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,853 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,853 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,853 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,854 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,854 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,854 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,854 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,854 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,855 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:51:17,855 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,855 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,856 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 07:51:17,857 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 07:51:17,857 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,858 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,858 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,858 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,858 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,859 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,859 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,860 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 07:51:17,860 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 07:51:17,861 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,861 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 07:51:17,861 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:17,862 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:17,862 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:17,862 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:17,863 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,864 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,864 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 07:51:17,864 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,864 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,864 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,865 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,865 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,865 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,866 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,866 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,866 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,866 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,867 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,867 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,867 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,868 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,868 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,868 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,869 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 07:51:17,870 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,871 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,871 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,872 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,872 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,873 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,873 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,873 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 07:51:17,874 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:17,874 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 07:51:17,875 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,875 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 07:51:17,875 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,875 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,880 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,880 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,880 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,882 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,884 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 07:51:17,885 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,885 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,886 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,886 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,886 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 07:51:17,887 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:17,887 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:17,887 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:17,888 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,888 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,888 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 07:51:17,888 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,889 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,891 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,892 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,893 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,893 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 07:51:17,894 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 07:51:17,895 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:51:17,895 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:51:17,896 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 07:51:17,896 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 07:51:17,896 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 07:51:17,898 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,899 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 07:51:17,900 WARN L623 FunctionHandler]: Unknown extern function __napi_complete [2022-12-14 07:51:17,900 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,901 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,901 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 07:51:17,902 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:51:17,903 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:51:17,903 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,904 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:17,904 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:17,904 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 07:51:17,905 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,905 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,905 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,906 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 07:51:17,907 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 07:51:17,907 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 07:51:17,908 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:51:17,908 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:51:17,908 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 07:51:17,909 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 07:51:17,909 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 07:51:17,910 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 07:51:17,910 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 07:51:17,910 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,911 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,911 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,911 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,912 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,912 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,913 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,913 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,913 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,913 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-14 07:51:17,913 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,914 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 07:51:17,914 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,914 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 07:51:17,915 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 07:51:17,915 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 07:51:17,915 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 07:51:17,916 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:51:17,921 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 07:51:17,921 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 07:51:17,921 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 07:51:17,923 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:51:17,925 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 07:51:17,925 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 07:51:17,930 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 07:51:17,931 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 07:51:17,936 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 07:51:17,936 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 07:51:17,940 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 07:51:17,940 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 07:51:17,940 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 07:51:17,941 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:51:17,941 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 07:51:17,941 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 07:51:17,942 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 07:51:17,942 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 07:51:17,942 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 07:51:17,942 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 07:51:17,943 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 07:51:17,945 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 07:51:17,945 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 07:51:17,945 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 07:51:17,961 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_e22c40f4-e911-4645-8239-6742fd545e3f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2022-12-14 07:51:17,961 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_e22c40f4-e911-4645-8239-6742fd545e3f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2022-12-14 07:51:17,961 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_e22c40f4-e911-4645-8239-6742fd545e3f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2022-12-14 07:51:17,962 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_e22c40f4-e911-4645-8239-6742fd545e3f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2022-12-14 07:51:17,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:51:18,101 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:51:18,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18 WrapperNode [2022-12-14 07:51:18,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:51:18,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:51:18,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:51:18,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:51:18,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,282 INFO L138 Inliner]: procedures = 451, calls = 2191, calls flagged for inlining = 220, calls inlined = 194, statements flattened = 4738 [2022-12-14 07:51:18,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:51:18,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:51:18,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:51:18,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:51:18,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,416 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:51:18,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:51:18,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:51:18,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:51:18,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (1/1) ... [2022-12-14 07:51:18,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:51:18,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:51:18,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:51:18,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:51:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-12-14 07:51:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-12-14 07:51:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 07:51:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 07:51:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 07:51:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 07:51:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_begin [2022-12-14 07:51:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_begin [2022-12-14 07:51:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-12-14 07:51:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-12-14 07:51:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 07:51:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 07:51:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 07:51:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 07:51:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 07:51:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 07:51:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 07:51:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 07:51:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 07:51:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 07:51:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-12-14 07:51:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-12-14 07:51:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2022-12-14 07:51:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2022-12-14 07:51:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-12-14 07:51:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-12-14 07:51:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 07:51:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 07:51:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 07:51:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 07:51:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 07:51:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 07:51:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 07:51:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 07:51:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 07:51:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-12-14 07:51:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-12-14 07:51:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 07:51:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 07:51:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 07:51:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 07:51:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 07:51:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 07:51:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 07:51:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 07:51:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:51:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 07:51:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 07:51:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 07:51:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 07:51:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 07:51:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 07:51:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 07:51:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 07:51:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 07:51:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 07:51:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure epic_open [2022-12-14 07:51:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_open [2022-12-14 07:51:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:51:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-12-14 07:51:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-12-14 07:51:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 07:51:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 07:51:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 07:51:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 07:51:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 07:51:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 07:51:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 07:51:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 07:51:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 07:51:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 07:51:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 07:51:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 07:51:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 07:51:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 07:51:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure epic_restart [2022-12-14 07:51:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_restart [2022-12-14 07:51:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2022-12-14 07:51:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2022-12-14 07:51:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 07:51:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 07:51:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:51:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 07:51:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 07:51:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 07:51:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 07:51:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:51:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-12-14 07:51:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-12-14 07:51:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 07:51:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 07:51:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 07:51:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 07:51:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:51:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-12-14 07:51:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-12-14 07:51:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 07:51:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 07:51:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_epic_private [2022-12-14 07:51:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_epic_private [2022-12-14 07:51:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-12-14 07:51:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-12-14 07:51:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-12-14 07:51:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-12-14 07:51:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 07:51:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 07:51:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-12-14 07:51:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-12-14 07:51:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 07:51:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 07:51:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure epic_remove_one [2022-12-14 07:51:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_remove_one [2022-12-14 07:51:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-14 07:51:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-14 07:51:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 07:51:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 07:51:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_napi_lock_of_epic_private [2022-12-14 07:51:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_napi_lock_of_epic_private [2022-12-14 07:51:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 07:51:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 07:51:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-12-14 07:51:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-12-14 07:51:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:51:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:51:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 07:51:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 07:51:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 07:51:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 07:51:18,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 07:51:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 07:51:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure epic_rx [2022-12-14 07:51:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_rx [2022-12-14 07:51:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_complete [2022-12-14 07:51:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_complete [2022-12-14 07:51:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 07:51:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 07:51:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_napi_lock_of_epic_private [2022-12-14 07:51:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_napi_lock_of_epic_private [2022-12-14 07:51:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 07:51:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 07:51:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 07:51:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 07:51:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 07:51:18,528 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 07:51:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-12-14 07:51:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-12-14 07:51:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 07:51:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 07:51:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:51:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2022-12-14 07:51:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2022-12-14 07:51:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure epic_resume [2022-12-14 07:51:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_resume [2022-12-14 07:51:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 07:51:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 07:51:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:51:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure epic_tx_timeout [2022-12-14 07:51:18,529 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_tx_timeout [2022-12-14 07:51:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-12-14 07:51:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-12-14 07:51:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:51:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 07:51:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 07:51:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 07:51:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 07:51:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-12-14 07:51:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-12-14 07:51:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 07:51:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 07:51:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 07:51:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 07:51:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure epic_close [2022-12-14 07:51:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_close [2022-12-14 07:51:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 07:51:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 07:51:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:51:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 07:51:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 07:51:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 07:51:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 07:51:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_epic_private [2022-12-14 07:51:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_epic_private [2022-12-14 07:51:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 07:51:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 07:51:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-12-14 07:51:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-12-14 07:51:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:51:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 07:51:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 07:51:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure epic_pause [2022-12-14 07:51:18,532 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_pause [2022-12-14 07:51:19,048 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:51:19,051 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:51:19,494 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 07:51:21,751 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 07:51:21,811 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:51:22,503 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:51:22,504 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:51:22,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:51:22 BoogieIcfgContainer [2022-12-14 07:51:22,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:51:22,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:51:22,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:51:22,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:51:22,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:51:15" (1/3) ... [2022-12-14 07:51:22,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125f7b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:51:22, skipping insertion in model container [2022-12-14 07:51:22,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:18" (2/3) ... [2022-12-14 07:51:22,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@125f7b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:51:22, skipping insertion in model container [2022-12-14 07:51:22,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:51:22" (3/3) ... [2022-12-14 07:51:22,514 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2022-12-14 07:51:22,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:51:22,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 07:51:22,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:51:22,592 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@333ecf86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:51:22,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 07:51:22,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 1244 states, 714 states have (on average 1.2997198879551821) internal successors, (928), 748 states have internal predecessors, (928), 441 states have call successors, (441), 87 states have call predecessors, (441), 86 states have return successors, (435), 430 states have call predecessors, (435), 435 states have call successors, (435) [2022-12-14 07:51:22,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 07:51:22,611 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:22,612 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:22,612 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:22,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:22,616 INFO L85 PathProgramCache]: Analyzing trace with hash 779275414, now seen corresponding path program 1 times [2022-12-14 07:51:22,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:22,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846146924] [2022-12-14 07:51:22,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:22,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:23,107 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-12-14 07:51:23,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:23,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846146924] [2022-12-14 07:51:23,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846146924] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:23,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:23,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:51:23,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716260335] [2022-12-14 07:51:23,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:23,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:23,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:23,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:23,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:23,144 INFO L87 Difference]: Start difference. First operand has 1244 states, 714 states have (on average 1.2997198879551821) internal successors, (928), 748 states have internal predecessors, (928), 441 states have call successors, (441), 87 states have call predecessors, (441), 86 states have return successors, (435), 430 states have call predecessors, (435), 435 states have call successors, (435) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-14 07:51:24,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:24,654 INFO L93 Difference]: Finished difference Result 3619 states and 5297 transitions. [2022-12-14 07:51:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:24,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2022-12-14 07:51:24,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:24,678 INFO L225 Difference]: With dead ends: 3619 [2022-12-14 07:51:24,678 INFO L226 Difference]: Without dead ends: 2384 [2022-12-14 07:51:24,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:24,688 INFO L413 NwaCegarLoop]: 1944 mSDtfsCounter, 1685 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 3455 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:24,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 3455 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 07:51:24,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2022-12-14 07:51:24,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2380. [2022-12-14 07:51:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 1381 states have (on average 1.2932657494569153) internal successors, (1786), 1448 states have internal predecessors, (1786), 828 states have call successors, (828), 169 states have call predecessors, (828), 168 states have return successors, (824), 814 states have call predecessors, (824), 824 states have call successors, (824) [2022-12-14 07:51:24,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3438 transitions. [2022-12-14 07:51:24,868 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3438 transitions. Word has length 111 [2022-12-14 07:51:24,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:24,869 INFO L495 AbstractCegarLoop]: Abstraction has 2380 states and 3438 transitions. [2022-12-14 07:51:24,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-14 07:51:24,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3438 transitions. [2022-12-14 07:51:24,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-12-14 07:51:24,875 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:24,876 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:24,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:51:24,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:24,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:24,877 INFO L85 PathProgramCache]: Analyzing trace with hash -71447826, now seen corresponding path program 1 times [2022-12-14 07:51:24,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:24,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640213991] [2022-12-14 07:51:24,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:24,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-12-14 07:51:25,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:25,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640213991] [2022-12-14 07:51:25,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640213991] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:25,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:25,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:51:25,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827385297] [2022-12-14 07:51:25,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:25,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:25,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:25,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:25,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:25,118 INFO L87 Difference]: Start difference. First operand 2380 states and 3438 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-14 07:51:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:26,695 INFO L93 Difference]: Finished difference Result 6768 states and 9748 transitions. [2022-12-14 07:51:26,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:26,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2022-12-14 07:51:26,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:26,716 INFO L225 Difference]: With dead ends: 6768 [2022-12-14 07:51:26,716 INFO L226 Difference]: Without dead ends: 4407 [2022-12-14 07:51:26,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:26,723 INFO L413 NwaCegarLoop]: 1899 mSDtfsCounter, 1497 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3379 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:26,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 3379 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 07:51:26,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4407 states. [2022-12-14 07:51:26,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4407 to 4377. [2022-12-14 07:51:26,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4377 states, 2542 states have (on average 1.2828481510621559) internal successors, (3261), 2670 states have internal predecessors, (3261), 1515 states have call successors, (1515), 320 states have call predecessors, (1515), 317 states have return successors, (1513), 1482 states have call predecessors, (1513), 1511 states have call successors, (1513) [2022-12-14 07:51:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 6289 transitions. [2022-12-14 07:51:26,917 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 6289 transitions. Word has length 119 [2022-12-14 07:51:26,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:26,918 INFO L495 AbstractCegarLoop]: Abstraction has 4377 states and 6289 transitions. [2022-12-14 07:51:26,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-12-14 07:51:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 6289 transitions. [2022-12-14 07:51:26,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-14 07:51:26,921 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:26,921 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:26,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:51:26,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:26,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:26,922 INFO L85 PathProgramCache]: Analyzing trace with hash -781289966, now seen corresponding path program 1 times [2022-12-14 07:51:26,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:26,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209424972] [2022-12-14 07:51:26,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:26,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:27,180 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-12-14 07:51:27,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:27,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209424972] [2022-12-14 07:51:27,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209424972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:27,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:27,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:51:27,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087145886] [2022-12-14 07:51:27,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:27,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:27,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:27,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:27,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:27,183 INFO L87 Difference]: Start difference. First operand 4377 states and 6289 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 07:51:28,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:28,517 INFO L93 Difference]: Finished difference Result 12709 states and 18245 transitions. [2022-12-14 07:51:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:28,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 123 [2022-12-14 07:51:28,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:28,549 INFO L225 Difference]: With dead ends: 12709 [2022-12-14 07:51:28,549 INFO L226 Difference]: Without dead ends: 8351 [2022-12-14 07:51:28,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:28,564 INFO L413 NwaCegarLoop]: 2036 mSDtfsCounter, 1644 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1644 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:28,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1644 Valid, 3514 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:51:28,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8351 states. [2022-12-14 07:51:28,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8351 to 8317. [2022-12-14 07:51:28,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8317 states, 4848 states have (on average 1.2807343234323432) internal successors, (6209), 5092 states have internal predecessors, (6209), 2855 states have call successors, (2855), 622 states have call predecessors, (2855), 611 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-12-14 07:51:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8317 states to 8317 states and 11929 transitions. [2022-12-14 07:51:28,894 INFO L78 Accepts]: Start accepts. Automaton has 8317 states and 11929 transitions. Word has length 123 [2022-12-14 07:51:28,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:28,895 INFO L495 AbstractCegarLoop]: Abstraction has 8317 states and 11929 transitions. [2022-12-14 07:51:28,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 07:51:28,895 INFO L276 IsEmpty]: Start isEmpty. Operand 8317 states and 11929 transitions. [2022-12-14 07:51:28,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-12-14 07:51:28,898 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:28,898 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:28,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:51:28,898 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:28,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:28,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1364926851, now seen corresponding path program 1 times [2022-12-14 07:51:28,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:28,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915286303] [2022-12-14 07:51:28,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:28,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-12-14 07:51:29,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:29,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915286303] [2022-12-14 07:51:29,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915286303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:29,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:29,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:29,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446691980] [2022-12-14 07:51:29,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:29,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:29,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:29,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:29,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:29,253 INFO L87 Difference]: Start difference. First operand 8317 states and 11929 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-12-14 07:51:30,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:30,747 INFO L93 Difference]: Finished difference Result 8323 states and 11934 transitions. [2022-12-14 07:51:30,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:30,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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 153 [2022-12-14 07:51:30,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:30,779 INFO L225 Difference]: With dead ends: 8323 [2022-12-14 07:51:30,779 INFO L226 Difference]: Without dead ends: 8321 [2022-12-14 07:51:30,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:30,784 INFO L413 NwaCegarLoop]: 1524 mSDtfsCounter, 1731 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:30,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 4558 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 07:51:30,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2022-12-14 07:51:31,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 8321. [2022-12-14 07:51:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8321 states, 4851 states have (on average 1.2805607091321376) internal successors, (6212), 5095 states have internal predecessors, (6212), 2855 states have call successors, (2855), 623 states have call predecessors, (2855), 612 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-12-14 07:51:31,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8321 states to 8321 states and 11932 transitions. [2022-12-14 07:51:31,109 INFO L78 Accepts]: Start accepts. Automaton has 8321 states and 11932 transitions. Word has length 153 [2022-12-14 07:51:31,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:31,109 INFO L495 AbstractCegarLoop]: Abstraction has 8321 states and 11932 transitions. [2022-12-14 07:51:31,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2022-12-14 07:51:31,109 INFO L276 IsEmpty]: Start isEmpty. Operand 8321 states and 11932 transitions. [2022-12-14 07:51:31,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-12-14 07:51:31,112 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:31,112 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:31,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:51:31,113 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:31,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:31,113 INFO L85 PathProgramCache]: Analyzing trace with hash 744570392, now seen corresponding path program 1 times [2022-12-14 07:51:31,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:31,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440894084] [2022-12-14 07:51:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:31,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-12-14 07:51:31,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:31,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440894084] [2022-12-14 07:51:31,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440894084] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:31,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:31,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:31,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28453300] [2022-12-14 07:51:31,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:31,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:31,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:31,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:31,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:31,417 INFO L87 Difference]: Start difference. First operand 8321 states and 11932 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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) [2022-12-14 07:51:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:33,063 INFO L93 Difference]: Finished difference Result 8327 states and 11937 transitions. [2022-12-14 07:51:33,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:33,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 158 [2022-12-14 07:51:33,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:33,089 INFO L225 Difference]: With dead ends: 8327 [2022-12-14 07:51:33,089 INFO L226 Difference]: Without dead ends: 8325 [2022-12-14 07:51:33,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:33,092 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1726 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:33,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1737 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 07:51:33,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8325 states. [2022-12-14 07:51:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8325 to 8325. [2022-12-14 07:51:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8325 states, 4854 states have (on average 1.2803873094355172) internal successors, (6215), 5098 states have internal predecessors, (6215), 2855 states have call successors, (2855), 624 states have call predecessors, (2855), 613 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-12-14 07:51:33,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8325 states to 8325 states and 11935 transitions. [2022-12-14 07:51:33,517 INFO L78 Accepts]: Start accepts. Automaton has 8325 states and 11935 transitions. Word has length 158 [2022-12-14 07:51:33,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:33,517 INFO L495 AbstractCegarLoop]: Abstraction has 8325 states and 11935 transitions. [2022-12-14 07:51:33,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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) [2022-12-14 07:51:33,518 INFO L276 IsEmpty]: Start isEmpty. Operand 8325 states and 11935 transitions. [2022-12-14 07:51:33,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-14 07:51:33,521 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:33,521 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:33,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:51:33,521 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:33,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash -269252507, now seen corresponding path program 1 times [2022-12-14 07:51:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:33,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815893952] [2022-12-14 07:51:33,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:33,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:33,800 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-12-14 07:51:33,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:33,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815893952] [2022-12-14 07:51:33,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815893952] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:33,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:33,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:33,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767065280] [2022-12-14 07:51:33,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:33,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:33,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:33,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:33,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:33,801 INFO L87 Difference]: Start difference. First operand 8325 states and 11935 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 07:51:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:35,230 INFO L93 Difference]: Finished difference Result 8331 states and 11940 transitions. [2022-12-14 07:51:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:35,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 167 [2022-12-14 07:51:35,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:35,254 INFO L225 Difference]: With dead ends: 8331 [2022-12-14 07:51:35,254 INFO L226 Difference]: Without dead ends: 8329 [2022-12-14 07:51:35,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:35,259 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:35,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1735 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:51:35,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2022-12-14 07:51:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 8329. [2022-12-14 07:51:35,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8329 states, 4857 states have (on average 1.280214123944822) internal successors, (6218), 5101 states have internal predecessors, (6218), 2855 states have call successors, (2855), 625 states have call predecessors, (2855), 614 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-12-14 07:51:35,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8329 states to 8329 states and 11938 transitions. [2022-12-14 07:51:35,611 INFO L78 Accepts]: Start accepts. Automaton has 8329 states and 11938 transitions. Word has length 167 [2022-12-14 07:51:35,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:35,612 INFO L495 AbstractCegarLoop]: Abstraction has 8329 states and 11938 transitions. [2022-12-14 07:51:35,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 07:51:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 8329 states and 11938 transitions. [2022-12-14 07:51:35,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-14 07:51:35,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:35,615 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:35,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:51:35,616 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:35,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:35,616 INFO L85 PathProgramCache]: Analyzing trace with hash -5275017, now seen corresponding path program 1 times [2022-12-14 07:51:35,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:35,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660242209] [2022-12-14 07:51:35,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:35,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-12-14 07:51:35,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:35,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660242209] [2022-12-14 07:51:35,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660242209] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:35,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:35,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:35,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264023497] [2022-12-14 07:51:35,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:35,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:35,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:35,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:35,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:35,902 INFO L87 Difference]: Start difference. First operand 8329 states and 11938 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 07:51:37,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:37,369 INFO L93 Difference]: Finished difference Result 8335 states and 11943 transitions. [2022-12-14 07:51:37,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:37,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 171 [2022-12-14 07:51:37,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:37,391 INFO L225 Difference]: With dead ends: 8335 [2022-12-14 07:51:37,391 INFO L226 Difference]: Without dead ends: 8333 [2022-12-14 07:51:37,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:37,395 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:37,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:51:37,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8333 states. [2022-12-14 07:51:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8333 to 8333. [2022-12-14 07:51:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8333 states, 4860 states have (on average 1.2800411522633746) internal successors, (6221), 5104 states have internal predecessors, (6221), 2855 states have call successors, (2855), 626 states have call predecessors, (2855), 615 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-12-14 07:51:37,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8333 states to 8333 states and 11941 transitions. [2022-12-14 07:51:37,756 INFO L78 Accepts]: Start accepts. Automaton has 8333 states and 11941 transitions. Word has length 171 [2022-12-14 07:51:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:37,756 INFO L495 AbstractCegarLoop]: Abstraction has 8333 states and 11941 transitions. [2022-12-14 07:51:37,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 07:51:37,757 INFO L276 IsEmpty]: Start isEmpty. Operand 8333 states and 11941 transitions. [2022-12-14 07:51:37,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-14 07:51:37,760 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:37,760 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:37,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 07:51:37,761 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:37,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:37,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1308784707, now seen corresponding path program 1 times [2022-12-14 07:51:37,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:37,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448567357] [2022-12-14 07:51:37,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:37,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2022-12-14 07:51:38,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:38,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448567357] [2022-12-14 07:51:38,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448567357] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:38,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:38,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:38,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774472802] [2022-12-14 07:51:38,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:38,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:38,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:38,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:38,028 INFO L87 Difference]: Start difference. First operand 8333 states and 11941 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 07:51:39,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:39,485 INFO L93 Difference]: Finished difference Result 8339 states and 11946 transitions. [2022-12-14 07:51:39,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:39,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 173 [2022-12-14 07:51:39,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:39,514 INFO L225 Difference]: With dead ends: 8339 [2022-12-14 07:51:39,514 INFO L226 Difference]: Without dead ends: 8337 [2022-12-14 07:51:39,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:39,520 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1726 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:39,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:51:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8337 states. [2022-12-14 07:51:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8337 to 8337. [2022-12-14 07:51:39,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8337 states, 4863 states have (on average 1.279868393995476) internal successors, (6224), 5107 states have internal predecessors, (6224), 2855 states have call successors, (2855), 627 states have call predecessors, (2855), 616 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-12-14 07:51:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8337 states to 8337 states and 11944 transitions. [2022-12-14 07:51:39,958 INFO L78 Accepts]: Start accepts. Automaton has 8337 states and 11944 transitions. Word has length 173 [2022-12-14 07:51:39,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:39,958 INFO L495 AbstractCegarLoop]: Abstraction has 8337 states and 11944 transitions. [2022-12-14 07:51:39,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 07:51:39,959 INFO L276 IsEmpty]: Start isEmpty. Operand 8337 states and 11944 transitions. [2022-12-14 07:51:39,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-12-14 07:51:39,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:39,963 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:39,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 07:51:39,964 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:39,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:39,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1546061424, now seen corresponding path program 1 times [2022-12-14 07:51:39,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:39,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184661418] [2022-12-14 07:51:39,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:39,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:40,275 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2022-12-14 07:51:40,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:40,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184661418] [2022-12-14 07:51:40,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184661418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:40,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:40,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:40,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309929861] [2022-12-14 07:51:40,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:40,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:40,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:40,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:40,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:40,277 INFO L87 Difference]: Start difference. First operand 8337 states and 11944 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 07:51:41,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:41,708 INFO L93 Difference]: Finished difference Result 8343 states and 11949 transitions. [2022-12-14 07:51:41,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:41,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 182 [2022-12-14 07:51:41,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:41,741 INFO L225 Difference]: With dead ends: 8343 [2022-12-14 07:51:41,741 INFO L226 Difference]: Without dead ends: 8341 [2022-12-14 07:51:41,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:41,746 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:41,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 07:51:41,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8341 states. [2022-12-14 07:51:42,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8341 to 8341. [2022-12-14 07:51:42,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8341 states, 4866 states have (on average 1.2796958487464036) internal successors, (6227), 5110 states have internal predecessors, (6227), 2855 states have call successors, (2855), 628 states have call predecessors, (2855), 617 states have return successors, (2865), 2774 states have call predecessors, (2865), 2851 states have call successors, (2865) [2022-12-14 07:51:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8341 states to 8341 states and 11947 transitions. [2022-12-14 07:51:42,158 INFO L78 Accepts]: Start accepts. Automaton has 8341 states and 11947 transitions. Word has length 182 [2022-12-14 07:51:42,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:42,158 INFO L495 AbstractCegarLoop]: Abstraction has 8341 states and 11947 transitions. [2022-12-14 07:51:42,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 07:51:42,158 INFO L276 IsEmpty]: Start isEmpty. Operand 8341 states and 11947 transitions. [2022-12-14 07:51:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-14 07:51:42,162 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:42,162 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 7, 6, 6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:42,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 07:51:42,162 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:42,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:42,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1954312795, now seen corresponding path program 1 times [2022-12-14 07:51:42,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:42,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097534458] [2022-12-14 07:51:42,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:42,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:42,469 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2022-12-14 07:51:42,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:42,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097534458] [2022-12-14 07:51:42,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097534458] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:42,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:42,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:42,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229628215] [2022-12-14 07:51:42,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:42,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:42,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:42,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:42,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:42,471 INFO L87 Difference]: Start difference. First operand 8341 states and 11947 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 07:51:44,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:44,307 INFO L93 Difference]: Finished difference Result 8533 states and 12149 transitions. [2022-12-14 07:51:44,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:44,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 187 [2022-12-14 07:51:44,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:44,326 INFO L225 Difference]: With dead ends: 8533 [2022-12-14 07:51:44,326 INFO L226 Difference]: Without dead ends: 8531 [2022-12-14 07:51:44,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:44,329 INFO L413 NwaCegarLoop]: 1538 mSDtfsCounter, 1692 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 4657 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:44,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 4657 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 07:51:44,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8531 states. [2022-12-14 07:51:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8531 to 8529. [2022-12-14 07:51:44,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8529 states, 4967 states have (on average 1.2760217435071473) internal successors, (6338), 5219 states have internal predecessors, (6338), 2899 states have call successors, (2899), 671 states have call predecessors, (2899), 660 states have return successors, (2909), 2818 states have call predecessors, (2909), 2895 states have call successors, (2909) [2022-12-14 07:51:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8529 states to 8529 states and 12146 transitions. [2022-12-14 07:51:44,745 INFO L78 Accepts]: Start accepts. Automaton has 8529 states and 12146 transitions. Word has length 187 [2022-12-14 07:51:44,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:44,746 INFO L495 AbstractCegarLoop]: Abstraction has 8529 states and 12146 transitions. [2022-12-14 07:51:44,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 07:51:44,746 INFO L276 IsEmpty]: Start isEmpty. Operand 8529 states and 12146 transitions. [2022-12-14 07:51:44,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-12-14 07:51:44,749 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:44,750 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:44,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 07:51:44,750 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:44,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:44,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1445715640, now seen corresponding path program 1 times [2022-12-14 07:51:44,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:44,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861120351] [2022-12-14 07:51:44,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:44,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:45,207 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-12-14 07:51:45,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:45,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861120351] [2022-12-14 07:51:45,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861120351] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:45,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:45,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:45,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806138028] [2022-12-14 07:51:45,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:45,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:45,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:45,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:45,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:45,209 INFO L87 Difference]: Start difference. First operand 8529 states and 12146 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 07:51:46,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:46,709 INFO L93 Difference]: Finished difference Result 8535 states and 12151 transitions. [2022-12-14 07:51:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:46,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 188 [2022-12-14 07:51:46,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:46,730 INFO L225 Difference]: With dead ends: 8535 [2022-12-14 07:51:46,730 INFO L226 Difference]: Without dead ends: 8533 [2022-12-14 07:51:46,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:46,734 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1726 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1731 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:46,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1731 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:51:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8533 states. [2022-12-14 07:51:47,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8533 to 8533. [2022-12-14 07:51:47,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8533 states, 4970 states have (on average 1.2758551307847084) internal successors, (6341), 5222 states have internal predecessors, (6341), 2899 states have call successors, (2899), 672 states have call predecessors, (2899), 661 states have return successors, (2909), 2818 states have call predecessors, (2909), 2895 states have call successors, (2909) [2022-12-14 07:51:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8533 states to 8533 states and 12149 transitions. [2022-12-14 07:51:47,194 INFO L78 Accepts]: Start accepts. Automaton has 8533 states and 12149 transitions. Word has length 188 [2022-12-14 07:51:47,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:47,194 INFO L495 AbstractCegarLoop]: Abstraction has 8533 states and 12149 transitions. [2022-12-14 07:51:47,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 07:51:47,194 INFO L276 IsEmpty]: Start isEmpty. Operand 8533 states and 12149 transitions. [2022-12-14 07:51:47,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-12-14 07:51:47,199 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:47,199 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 9, 8, 8, 5, 5, 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] [2022-12-14 07:51:47,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 07:51:47,199 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:47,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:47,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1745411166, now seen corresponding path program 1 times [2022-12-14 07:51:47,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:47,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744236645] [2022-12-14 07:51:47,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:47,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:47,478 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2022-12-14 07:51:47,479 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:47,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744236645] [2022-12-14 07:51:47,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744236645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:47,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:47,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:47,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778225439] [2022-12-14 07:51:47,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:47,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:47,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:47,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:47,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:47,481 INFO L87 Difference]: Start difference. First operand 8533 states and 12149 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 07:51:49,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:49,148 INFO L93 Difference]: Finished difference Result 8577 states and 12175 transitions. [2022-12-14 07:51:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:49,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 196 [2022-12-14 07:51:49,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:49,168 INFO L225 Difference]: With dead ends: 8577 [2022-12-14 07:51:49,169 INFO L226 Difference]: Without dead ends: 8575 [2022-12-14 07:51:49,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:49,173 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 1701 mSDsluCounter, 3067 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 4599 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:49,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 4599 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:51:49,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8575 states. [2022-12-14 07:51:49,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8575 to 8573. [2022-12-14 07:51:49,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8573 states, 4993 states have (on average 1.2745844181854595) internal successors, (6364), 5245 states have internal predecessors, (6364), 2899 states have call successors, (2899), 689 states have call predecessors, (2899), 678 states have return successors, (2909), 2818 states have call predecessors, (2909), 2895 states have call successors, (2909) [2022-12-14 07:51:49,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 12172 transitions. [2022-12-14 07:51:49,658 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 12172 transitions. Word has length 196 [2022-12-14 07:51:49,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:49,658 INFO L495 AbstractCegarLoop]: Abstraction has 8573 states and 12172 transitions. [2022-12-14 07:51:49,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 07:51:49,658 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 12172 transitions. [2022-12-14 07:51:49,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-12-14 07:51:49,662 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:49,662 INFO L195 NwaCegarLoop]: trace histogram [13, 10, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 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] [2022-12-14 07:51:49,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 07:51:49,662 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:49,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:49,663 INFO L85 PathProgramCache]: Analyzing trace with hash 332301015, now seen corresponding path program 1 times [2022-12-14 07:51:49,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:49,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234465357] [2022-12-14 07:51:49,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:49,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:50,049 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2022-12-14 07:51:50,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:50,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234465357] [2022-12-14 07:51:50,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234465357] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:50,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:50,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:50,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506385565] [2022-12-14 07:51:50,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:50,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:50,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:50,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:50,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:50,051 INFO L87 Difference]: Start difference. First operand 8573 states and 12172 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 07:51:52,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:52,125 INFO L93 Difference]: Finished difference Result 8579 states and 12177 transitions. [2022-12-14 07:51:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:52,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 201 [2022-12-14 07:51:52,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:52,146 INFO L225 Difference]: With dead ends: 8579 [2022-12-14 07:51:52,146 INFO L226 Difference]: Without dead ends: 8577 [2022-12-14 07:51:52,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:52,150 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:52,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1728 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 07:51:52,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8577 states. [2022-12-14 07:51:52,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8577 to 8577. [2022-12-14 07:51:52,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8577 states, 4996 states have (on average 1.2744195356285029) internal successors, (6367), 5248 states have internal predecessors, (6367), 2899 states have call successors, (2899), 690 states have call predecessors, (2899), 679 states have return successors, (2909), 2818 states have call predecessors, (2909), 2895 states have call successors, (2909) [2022-12-14 07:51:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8577 states to 8577 states and 12175 transitions. [2022-12-14 07:51:52,682 INFO L78 Accepts]: Start accepts. Automaton has 8577 states and 12175 transitions. Word has length 201 [2022-12-14 07:51:52,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:52,683 INFO L495 AbstractCegarLoop]: Abstraction has 8577 states and 12175 transitions. [2022-12-14 07:51:52,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 07:51:52,683 INFO L276 IsEmpty]: Start isEmpty. Operand 8577 states and 12175 transitions. [2022-12-14 07:51:52,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-12-14 07:51:52,687 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:52,687 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:52,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 07:51:52,687 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:52,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:52,687 INFO L85 PathProgramCache]: Analyzing trace with hash 238557118, now seen corresponding path program 1 times [2022-12-14 07:51:52,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:52,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252064886] [2022-12-14 07:51:52,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:52,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2022-12-14 07:51:52,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:52,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252064886] [2022-12-14 07:51:52,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252064886] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:52,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:52,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:52,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590392530] [2022-12-14 07:51:52,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:52,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:52,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:52,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:52,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:52,943 INFO L87 Difference]: Start difference. First operand 8577 states and 12175 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 07:51:54,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:54,771 INFO L93 Difference]: Finished difference Result 8583 states and 12180 transitions. [2022-12-14 07:51:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:54,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 206 [2022-12-14 07:51:54,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:54,791 INFO L225 Difference]: With dead ends: 8583 [2022-12-14 07:51:54,791 INFO L226 Difference]: Without dead ends: 8581 [2022-12-14 07:51:54,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:54,794 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:54,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1727 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 07:51:54,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8581 states. [2022-12-14 07:51:55,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8581 to 8581. [2022-12-14 07:51:55,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8581 states, 4999 states have (on average 1.274254850970194) internal successors, (6370), 5251 states have internal predecessors, (6370), 2899 states have call successors, (2899), 691 states have call predecessors, (2899), 680 states have return successors, (2909), 2818 states have call predecessors, (2909), 2895 states have call successors, (2909) [2022-12-14 07:51:55,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8581 states to 8581 states and 12178 transitions. [2022-12-14 07:51:55,358 INFO L78 Accepts]: Start accepts. Automaton has 8581 states and 12178 transitions. Word has length 206 [2022-12-14 07:51:55,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:55,358 INFO L495 AbstractCegarLoop]: Abstraction has 8581 states and 12178 transitions. [2022-12-14 07:51:55,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 07:51:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 8581 states and 12178 transitions. [2022-12-14 07:51:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-12-14 07:51:55,366 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:55,367 INFO L195 NwaCegarLoop]: trace histogram [12, 9, 9, 9, 9, 9, 9, 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] [2022-12-14 07:51:55,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 07:51:55,367 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:55,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1642975053, now seen corresponding path program 1 times [2022-12-14 07:51:55,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:55,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285348219] [2022-12-14 07:51:55,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:55,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-12-14 07:51:55,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:55,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285348219] [2022-12-14 07:51:55,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285348219] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:55,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:55,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:51:55,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193043211] [2022-12-14 07:51:55,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:55,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:51:55,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:55,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:51:55,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:55,567 INFO L87 Difference]: Start difference. First operand 8581 states and 12178 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 07:51:57,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:57,133 INFO L93 Difference]: Finished difference Result 15170 states and 21428 transitions. [2022-12-14 07:51:57,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:51:57,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 204 [2022-12-14 07:51:57,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:57,148 INFO L225 Difference]: With dead ends: 15170 [2022-12-14 07:51:57,148 INFO L226 Difference]: Without dead ends: 6608 [2022-12-14 07:51:57,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:51:57,167 INFO L413 NwaCegarLoop]: 2186 mSDtfsCounter, 1033 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 3677 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:57,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 3677 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 07:51:57,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6608 states. [2022-12-14 07:51:57,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6608 to 6532. [2022-12-14 07:51:57,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6532 states, 3868 states have (on average 1.2719751809720785) internal successors, (4920), 4058 states have internal predecessors, (4920), 2103 states have call successors, (2103), 568 states have call predecessors, (2103), 558 states have return successors, (2106), 2034 states have call predecessors, (2106), 2099 states have call successors, (2106) [2022-12-14 07:51:57,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6532 states to 6532 states and 9129 transitions. [2022-12-14 07:51:57,580 INFO L78 Accepts]: Start accepts. Automaton has 6532 states and 9129 transitions. Word has length 204 [2022-12-14 07:51:57,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:57,581 INFO L495 AbstractCegarLoop]: Abstraction has 6532 states and 9129 transitions. [2022-12-14 07:51:57,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-12-14 07:51:57,581 INFO L276 IsEmpty]: Start isEmpty. Operand 6532 states and 9129 transitions. [2022-12-14 07:51:57,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-12-14 07:51:57,583 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:57,583 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 11, 11, 9, 9, 9, 9, 9, 9, 5, 5, 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] [2022-12-14 07:51:57,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 07:51:57,583 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:57,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:57,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1157075703, now seen corresponding path program 1 times [2022-12-14 07:51:57,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:57,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233911496] [2022-12-14 07:51:57,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:57,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:57,829 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2022-12-14 07:51:57,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:57,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233911496] [2022-12-14 07:51:57,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233911496] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:57,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:57,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:57,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766432687] [2022-12-14 07:51:57,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:57,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:57,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:57,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:57,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:57,831 INFO L87 Difference]: Start difference. First operand 6532 states and 9129 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 07:51:59,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:51:59,186 INFO L93 Difference]: Finished difference Result 6538 states and 9134 transitions. [2022-12-14 07:51:59,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:51:59,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 211 [2022-12-14 07:51:59,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:51:59,200 INFO L225 Difference]: With dead ends: 6538 [2022-12-14 07:51:59,200 INFO L226 Difference]: Without dead ends: 6534 [2022-12-14 07:51:59,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:51:59,203 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1725 mSDsluCounter, 3034 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 4561 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:51:59,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 4561 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 07:51:59,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6534 states. [2022-12-14 07:51:59,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6534 to 6534. [2022-12-14 07:51:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6534 states, 3870 states have (on average 1.271576227390181) internal successors, (4921), 4059 states have internal predecessors, (4921), 2103 states have call successors, (2103), 569 states have call predecessors, (2103), 558 states have return successors, (2106), 2034 states have call predecessors, (2106), 2099 states have call successors, (2106) [2022-12-14 07:51:59,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6534 states to 6534 states and 9130 transitions. [2022-12-14 07:51:59,667 INFO L78 Accepts]: Start accepts. Automaton has 6534 states and 9130 transitions. Word has length 211 [2022-12-14 07:51:59,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:51:59,667 INFO L495 AbstractCegarLoop]: Abstraction has 6534 states and 9130 transitions. [2022-12-14 07:51:59,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 07:51:59,668 INFO L276 IsEmpty]: Start isEmpty. Operand 6534 states and 9130 transitions. [2022-12-14 07:51:59,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-12-14 07:51:59,670 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:51:59,670 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 9, 9, 9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:51:59,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 07:51:59,670 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:51:59,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:51:59,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1974975037, now seen corresponding path program 1 times [2022-12-14 07:51:59,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:51:59,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207395304] [2022-12-14 07:51:59,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:51:59,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:51:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:51:59,902 INFO L134 CoverageAnalysis]: Checked inductivity of 687 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2022-12-14 07:51:59,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:51:59,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207395304] [2022-12-14 07:51:59,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207395304] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:51:59,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:51:59,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:51:59,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895943073] [2022-12-14 07:51:59,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:51:59,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:51:59,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:51:59,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:51:59,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:51:59,904 INFO L87 Difference]: Start difference. First operand 6534 states and 9130 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 07:52:01,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:01,957 INFO L93 Difference]: Finished difference Result 6534 states and 9130 transitions. [2022-12-14 07:52:01,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:52:01,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 213 [2022-12-14 07:52:01,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:01,974 INFO L225 Difference]: With dead ends: 6534 [2022-12-14 07:52:01,974 INFO L226 Difference]: Without dead ends: 6402 [2022-12-14 07:52:01,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:52:01,978 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 1722 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:01,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 4558 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 07:52:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6402 states. [2022-12-14 07:52:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6402 to 6402. [2022-12-14 07:52:02,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6402 states, 3819 states have (on average 1.26891856506939) internal successors, (4846), 3984 states have internal predecessors, (4846), 2039 states have call successors, (2039), 547 states have call predecessors, (2039), 542 states have return successors, (2046), 1999 states have call predecessors, (2046), 2039 states have call successors, (2046) [2022-12-14 07:52:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6402 states to 6402 states and 8931 transitions. [2022-12-14 07:52:02,427 INFO L78 Accepts]: Start accepts. Automaton has 6402 states and 8931 transitions. Word has length 213 [2022-12-14 07:52:02,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:02,427 INFO L495 AbstractCegarLoop]: Abstraction has 6402 states and 8931 transitions. [2022-12-14 07:52:02,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 07:52:02,428 INFO L276 IsEmpty]: Start isEmpty. Operand 6402 states and 8931 transitions. [2022-12-14 07:52:02,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-12-14 07:52:02,434 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:02,435 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:52:02,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 07:52:02,435 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:52:02,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:02,435 INFO L85 PathProgramCache]: Analyzing trace with hash 39742424, now seen corresponding path program 1 times [2022-12-14 07:52:02,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:02,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848532314] [2022-12-14 07:52:02,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:02,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:02,610 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-12-14 07:52:02,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:02,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848532314] [2022-12-14 07:52:02,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848532314] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:52:02,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:52:02,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:52:02,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949157979] [2022-12-14 07:52:02,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:52:02,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:52:02,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:02,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:52:02,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:52:02,612 INFO L87 Difference]: Start difference. First operand 6402 states and 8931 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 07:52:04,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:04,687 INFO L93 Difference]: Finished difference Result 14646 states and 20414 transitions. [2022-12-14 07:52:04,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:52:04,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 251 [2022-12-14 07:52:04,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:04,705 INFO L225 Difference]: With dead ends: 14646 [2022-12-14 07:52:04,705 INFO L226 Difference]: Without dead ends: 8384 [2022-12-14 07:52:04,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:52:04,717 INFO L413 NwaCegarLoop]: 2283 mSDtfsCounter, 992 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:04,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 3722 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 07:52:04,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8384 states. [2022-12-14 07:52:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8384 to 8376. [2022-12-14 07:52:05,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8376 states, 5028 states have (on average 1.2675019888623706) internal successors, (6373), 5237 states have internal predecessors, (6373), 2609 states have call successors, (2609), 742 states have call predecessors, (2609), 737 states have return successors, (2616), 2563 states have call predecessors, (2616), 2609 states have call successors, (2616) [2022-12-14 07:52:05,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8376 states to 8376 states and 11598 transitions. [2022-12-14 07:52:05,351 INFO L78 Accepts]: Start accepts. Automaton has 8376 states and 11598 transitions. Word has length 251 [2022-12-14 07:52:05,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:05,351 INFO L495 AbstractCegarLoop]: Abstraction has 8376 states and 11598 transitions. [2022-12-14 07:52:05,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 07:52:05,351 INFO L276 IsEmpty]: Start isEmpty. Operand 8376 states and 11598 transitions. [2022-12-14 07:52:05,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-12-14 07:52:05,355 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:05,355 INFO L195 NwaCegarLoop]: trace histogram [17, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2022-12-14 07:52:05,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 07:52:05,355 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:52:05,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:05,356 INFO L85 PathProgramCache]: Analyzing trace with hash 391067233, now seen corresponding path program 1 times [2022-12-14 07:52:05,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:05,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375259558] [2022-12-14 07:52:05,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:05,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2022-12-14 07:52:05,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:05,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375259558] [2022-12-14 07:52:05,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375259558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:52:05,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:52:05,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:52:05,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132486024] [2022-12-14 07:52:05,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:52:05,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:52:05,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:05,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:52:05,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:52:05,831 INFO L87 Difference]: Start difference. First operand 8376 states and 11598 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 07:52:07,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:07,636 INFO L93 Difference]: Finished difference Result 8392 states and 11612 transitions. [2022-12-14 07:52:07,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:52:07,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 313 [2022-12-14 07:52:07,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:07,654 INFO L225 Difference]: With dead ends: 8392 [2022-12-14 07:52:07,655 INFO L226 Difference]: Without dead ends: 8390 [2022-12-14 07:52:07,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:52:07,658 INFO L413 NwaCegarLoop]: 1481 mSDtfsCounter, 1616 mSDsluCounter, 2982 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 4463 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:07,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 4463 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:52:07,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8390 states. [2022-12-14 07:52:08,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8390 to 8388. [2022-12-14 07:52:08,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8388 states, 5037 states have (on average 1.266428429620806) internal successors, (6379), 5246 states have internal predecessors, (6379), 2609 states have call successors, (2609), 745 states have call predecessors, (2609), 740 states have return successors, (2616), 2563 states have call predecessors, (2616), 2609 states have call successors, (2616) [2022-12-14 07:52:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8388 states to 8388 states and 11604 transitions. [2022-12-14 07:52:08,314 INFO L78 Accepts]: Start accepts. Automaton has 8388 states and 11604 transitions. Word has length 313 [2022-12-14 07:52:08,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:08,315 INFO L495 AbstractCegarLoop]: Abstraction has 8388 states and 11604 transitions. [2022-12-14 07:52:08,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 07:52:08,315 INFO L276 IsEmpty]: Start isEmpty. Operand 8388 states and 11604 transitions. [2022-12-14 07:52:08,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-12-14 07:52:08,324 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:08,324 INFO L195 NwaCegarLoop]: trace histogram [17, 11, 11, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 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] [2022-12-14 07:52:08,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 07:52:08,325 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:52:08,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:08,325 INFO L85 PathProgramCache]: Analyzing trace with hash 506217463, now seen corresponding path program 1 times [2022-12-14 07:52:08,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:08,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226990147] [2022-12-14 07:52:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:08,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:08,814 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-12-14 07:52:08,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:08,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226990147] [2022-12-14 07:52:08,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226990147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:52:08,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:52:08,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 07:52:08,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459917312] [2022-12-14 07:52:08,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:52:08,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:52:08,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:08,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:52:08,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:52:08,816 INFO L87 Difference]: Start difference. First operand 8388 states and 11604 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 07:52:10,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:10,930 INFO L93 Difference]: Finished difference Result 8390 states and 11605 transitions. [2022-12-14 07:52:10,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:52:10,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 334 [2022-12-14 07:52:10,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:10,949 INFO L225 Difference]: With dead ends: 8390 [2022-12-14 07:52:10,949 INFO L226 Difference]: Without dead ends: 8388 [2022-12-14 07:52:10,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 07:52:10,953 INFO L413 NwaCegarLoop]: 1477 mSDtfsCounter, 26 mSDsluCounter, 4413 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:10,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5890 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 07:52:10,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8388 states. [2022-12-14 07:52:11,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8388 to 8388. [2022-12-14 07:52:11,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8388 states, 5037 states have (on average 1.265237244391503) internal successors, (6373), 5246 states have internal predecessors, (6373), 2609 states have call successors, (2609), 745 states have call predecessors, (2609), 740 states have return successors, (2616), 2563 states have call predecessors, (2616), 2609 states have call successors, (2616) [2022-12-14 07:52:11,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8388 states to 8388 states and 11598 transitions. [2022-12-14 07:52:11,518 INFO L78 Accepts]: Start accepts. Automaton has 8388 states and 11598 transitions. Word has length 334 [2022-12-14 07:52:11,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:11,518 INFO L495 AbstractCegarLoop]: Abstraction has 8388 states and 11598 transitions. [2022-12-14 07:52:11,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (47), 3 states have call predecessors, (47), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 07:52:11,519 INFO L276 IsEmpty]: Start isEmpty. Operand 8388 states and 11598 transitions. [2022-12-14 07:52:11,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-12-14 07:52:11,527 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:11,527 INFO L195 NwaCegarLoop]: trace histogram [23, 17, 17, 11, 11, 11, 11, 11, 11, 5, 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, 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] [2022-12-14 07:52:11,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 07:52:11,528 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:52:11,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:11,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1003405986, now seen corresponding path program 1 times [2022-12-14 07:52:11,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:11,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573938236] [2022-12-14 07:52:11,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:11,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked. [2022-12-14 07:52:11,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:11,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573938236] [2022-12-14 07:52:11,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573938236] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:52:11,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:52:11,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:52:11,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14761867] [2022-12-14 07:52:11,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:52:11,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:52:11,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:11,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:52:11,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:52:11,914 INFO L87 Difference]: Start difference. First operand 8388 states and 11598 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-12-14 07:52:13,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:13,740 INFO L93 Difference]: Finished difference Result 16648 states and 23035 transitions. [2022-12-14 07:52:13,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:52:13,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 474 [2022-12-14 07:52:13,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:13,759 INFO L225 Difference]: With dead ends: 16648 [2022-12-14 07:52:13,760 INFO L226 Difference]: Without dead ends: 8400 [2022-12-14 07:52:13,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:52:13,777 INFO L413 NwaCegarLoop]: 1478 mSDtfsCounter, 1 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2947 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:13,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2947 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 07:52:13,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8400 states. [2022-12-14 07:52:14,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8400 to 8392. [2022-12-14 07:52:14,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8392 states, 5041 states have (on average 1.265026780400714) internal successors, (6377), 5250 states have internal predecessors, (6377), 2609 states have call successors, (2609), 745 states have call predecessors, (2609), 740 states have return successors, (2616), 2563 states have call predecessors, (2616), 2609 states have call successors, (2616) [2022-12-14 07:52:14,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8392 states to 8392 states and 11602 transitions. [2022-12-14 07:52:14,357 INFO L78 Accepts]: Start accepts. Automaton has 8392 states and 11602 transitions. Word has length 474 [2022-12-14 07:52:14,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:14,358 INFO L495 AbstractCegarLoop]: Abstraction has 8392 states and 11602 transitions. [2022-12-14 07:52:14,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-12-14 07:52:14,358 INFO L276 IsEmpty]: Start isEmpty. Operand 8392 states and 11602 transitions. [2022-12-14 07:52:14,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-12-14 07:52:14,367 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:14,367 INFO L195 NwaCegarLoop]: trace histogram [23, 17, 17, 11, 11, 11, 11, 11, 11, 6, 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, 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] [2022-12-14 07:52:14,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 07:52:14,367 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:52:14,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:14,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1301208949, now seen corresponding path program 1 times [2022-12-14 07:52:14,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:14,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233400069] [2022-12-14 07:52:14,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:14,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2022-12-14 07:52:14,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:14,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233400069] [2022-12-14 07:52:14,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233400069] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:52:14,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88952205] [2022-12-14 07:52:14,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:14,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:14,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:52:14,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:52:14,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:52:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:15,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 5196 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:52:15,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:52:15,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2022-12-14 07:52:15,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:52:15,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88952205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:52:15,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:52:15,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 07:52:15,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178818377] [2022-12-14 07:52:15,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:52:15,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:52:15,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:15,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:52:15,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:52:15,777 INFO L87 Difference]: Start difference. First operand 8392 states and 11602 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-12-14 07:52:17,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:17,170 INFO L93 Difference]: Finished difference Result 16760 states and 23215 transitions. [2022-12-14 07:52:17,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:52:17,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 479 [2022-12-14 07:52:17,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:17,188 INFO L225 Difference]: With dead ends: 16760 [2022-12-14 07:52:17,188 INFO L226 Difference]: Without dead ends: 8508 [2022-12-14 07:52:17,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:52:17,200 INFO L413 NwaCegarLoop]: 1492 mSDtfsCounter, 17 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2954 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:17,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2954 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 07:52:17,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8508 states. [2022-12-14 07:52:17,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8508 to 8400. [2022-12-14 07:52:17,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8400 states, 5049 states have (on average 1.264606852842147) internal successors, (6385), 5258 states have internal predecessors, (6385), 2609 states have call successors, (2609), 745 states have call predecessors, (2609), 740 states have return successors, (2616), 2563 states have call predecessors, (2616), 2609 states have call successors, (2616) [2022-12-14 07:52:17,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8400 states to 8400 states and 11610 transitions. [2022-12-14 07:52:17,792 INFO L78 Accepts]: Start accepts. Automaton has 8400 states and 11610 transitions. Word has length 479 [2022-12-14 07:52:17,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:17,792 INFO L495 AbstractCegarLoop]: Abstraction has 8400 states and 11610 transitions. [2022-12-14 07:52:17,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2022-12-14 07:52:17,792 INFO L276 IsEmpty]: Start isEmpty. Operand 8400 states and 11610 transitions. [2022-12-14 07:52:17,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-12-14 07:52:17,801 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:17,801 INFO L195 NwaCegarLoop]: trace histogram [23, 17, 17, 11, 11, 11, 11, 11, 11, 6, 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, 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] [2022-12-14 07:52:17,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:52:18,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:18,003 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:52:18,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:18,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1991273809, now seen corresponding path program 1 times [2022-12-14 07:52:18,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:18,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753786875] [2022-12-14 07:52:18,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:18,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1359 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 1344 trivial. 0 not checked. [2022-12-14 07:52:18,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:18,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753786875] [2022-12-14 07:52:18,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753786875] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:52:18,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461263022] [2022-12-14 07:52:18,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:18,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:18,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:52:18,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:52:18,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:52:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:19,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 5227 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:52:19,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:52:19,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1359 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 1205 trivial. 0 not checked. [2022-12-14 07:52:19,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:52:19,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461263022] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:52:19,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:52:19,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 07:52:19,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973814911] [2022-12-14 07:52:19,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:52:19,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:52:19,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:19,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:52:19,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:52:19,337 INFO L87 Difference]: Start difference. First operand 8400 states and 11610 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 3 states have call successors, (74), 3 states have call predecessors, (74), 3 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-12-14 07:52:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:21,817 INFO L93 Difference]: Finished difference Result 20044 states and 27775 transitions. [2022-12-14 07:52:21,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:52:21,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 3 states have call successors, (74), 3 states have call predecessors, (74), 3 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 484 [2022-12-14 07:52:21,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:21,839 INFO L225 Difference]: With dead ends: 20044 [2022-12-14 07:52:21,839 INFO L226 Difference]: Without dead ends: 11784 [2022-12-14 07:52:21,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 484 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:52:21,853 INFO L413 NwaCegarLoop]: 2692 mSDtfsCounter, 1492 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:21,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 4090 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 07:52:21,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11784 states. [2022-12-14 07:52:22,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11784 to 11781. [2022-12-14 07:52:22,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11781 states, 7126 states have (on average 1.2587706988492844) internal successors, (8970), 7412 states have internal predecessors, (8970), 3630 states have call successors, (3630), 1031 states have call predecessors, (3630), 1023 states have return successors, (3641), 3561 states have call predecessors, (3641), 3630 states have call successors, (3641) [2022-12-14 07:52:22,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11781 states to 11781 states and 16241 transitions. [2022-12-14 07:52:22,700 INFO L78 Accepts]: Start accepts. Automaton has 11781 states and 16241 transitions. Word has length 484 [2022-12-14 07:52:22,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:22,700 INFO L495 AbstractCegarLoop]: Abstraction has 11781 states and 16241 transitions. [2022-12-14 07:52:22,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 3 states have call successors, (74), 3 states have call predecessors, (74), 3 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-12-14 07:52:22,701 INFO L276 IsEmpty]: Start isEmpty. Operand 11781 states and 16241 transitions. [2022-12-14 07:52:22,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2022-12-14 07:52:22,711 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:22,711 INFO L195 NwaCegarLoop]: trace histogram [25, 17, 17, 11, 11, 11, 11, 11, 11, 6, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 07:52:22,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:52:22,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-14 07:52:22,913 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:52:22,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:22,915 INFO L85 PathProgramCache]: Analyzing trace with hash -2049616971, now seen corresponding path program 1 times [2022-12-14 07:52:22,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:22,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901689827] [2022-12-14 07:52:22,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:22,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:23,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-12-14 07:52:23,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:23,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901689827] [2022-12-14 07:52:23,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901689827] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:52:23,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802686778] [2022-12-14 07:52:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:23,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:23,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:52:23,369 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:52:23,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:52:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:24,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 5288 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 07:52:24,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:52:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 1207 trivial. 0 not checked. [2022-12-14 07:52:24,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:52:24,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802686778] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:52:24,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:52:24,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-14 07:52:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638033204] [2022-12-14 07:52:24,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:52:24,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:52:24,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:52:24,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:52:24,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:52:24,493 INFO L87 Difference]: Start difference. First operand 11781 states and 16241 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 3 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) [2022-12-14 07:52:27,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:52:27,254 INFO L93 Difference]: Finished difference Result 27480 states and 37849 transitions. [2022-12-14 07:52:27,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:52:27,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 3 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) Word has length 504 [2022-12-14 07:52:27,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:52:27,288 INFO L225 Difference]: With dead ends: 27480 [2022-12-14 07:52:27,288 INFO L226 Difference]: Without dead ends: 15839 [2022-12-14 07:52:27,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:52:27,311 INFO L413 NwaCegarLoop]: 1816 mSDtfsCounter, 1640 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:52:27,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1640 Valid, 3111 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 07:52:27,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15839 states. [2022-12-14 07:52:28,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15839 to 15836. [2022-12-14 07:52:28,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15836 states, 9631 states have (on average 1.25957844460596) internal successors, (12131), 10010 states have internal predecessors, (12131), 4811 states have call successors, (4811), 1403 states have call predecessors, (4811), 1392 states have return successors, (4826), 4717 states have call predecessors, (4826), 4811 states have call successors, (4826) [2022-12-14 07:52:28,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15836 states to 15836 states and 21768 transitions. [2022-12-14 07:52:28,447 INFO L78 Accepts]: Start accepts. Automaton has 15836 states and 21768 transitions. Word has length 504 [2022-12-14 07:52:28,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:52:28,447 INFO L495 AbstractCegarLoop]: Abstraction has 15836 states and 21768 transitions. [2022-12-14 07:52:28,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 3 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) [2022-12-14 07:52:28,448 INFO L276 IsEmpty]: Start isEmpty. Operand 15836 states and 21768 transitions. [2022-12-14 07:52:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-12-14 07:52:28,458 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:52:28,458 INFO L195 NwaCegarLoop]: trace histogram [25, 17, 17, 11, 11, 11, 11, 11, 11, 6, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 07:52:28,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:52:28,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-14 07:52:28,660 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 07:52:28,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:52:28,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2147245585, now seen corresponding path program 1 times [2022-12-14 07:52:28,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:52:28,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969917211] [2022-12-14 07:52:28,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:28,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:52:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2022-12-14 07:52:29,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:52:29,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969917211] [2022-12-14 07:52:29,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969917211] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:52:29,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511765586] [2022-12-14 07:52:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:52:29,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:52:29,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:52:29,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:52:29,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e22c40f4-e911-4645-8239-6742fd545e3f/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:52:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:52:29,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 5290 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:52:29,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:52:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 505 proven. 1 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2022-12-14 07:52:29,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:52:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2022-12-14 07:52:30,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511765586] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:52:30,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1125120827] [2022-12-14 07:52:30,275 INFO L159 IcfgInterpreter]: Started Sifa with 264 locations of interest [2022-12-14 07:52:30,275 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:52:30,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:52:30,283 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:52:30,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs