./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-dlink-dl2k.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/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_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/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-dlink-dl2k.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/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_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/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 e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c --- 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 09:29:07,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:29:07,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:29:07,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:29:07,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:29:07,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:29:07,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:29:07,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:29:07,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:29:07,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:29:07,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:29:07,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:29:07,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:29:07,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:29:07,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:29:07,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:29:07,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:29:07,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:29:07,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:29:07,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:29:07,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:29:07,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:29:07,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:29:07,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:29:07,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:29:07,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:29:07,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:29:07,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:29:07,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:29:07,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:29:07,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:29:07,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:29:07,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:29:07,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:29:07,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:29:07,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:29:07,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:29:07,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:29:07,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:29:07,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:29:07,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:29:07,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:29:07,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:29:07,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:29:07,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:29:07,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:29:07,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:29:07,220 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:29:07,220 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:29:07,221 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:29:07,221 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:29:07,221 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:29:07,221 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:29:07,221 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:29:07,221 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:29:07,222 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:29:07,222 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:29:07,222 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:29:07,222 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:29:07,222 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:29:07,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:29:07,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:29:07,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:29:07,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:29:07,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:29:07,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:29:07,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:29:07,224 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:29:07,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:29:07,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:29:07,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:29:07,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:29:07,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:29:07,225 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:29:07,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:29:07,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:29:07,226 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:29:07,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:29:07,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:29:07,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:29:07,226 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_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c [2022-12-14 09:29:07,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:29:07,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:29:07,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:29:07,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:29:07,428 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:29:07,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2022-12-14 09:29:10,054 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:29:10,479 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:29:10,479 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2022-12-14 09:29:10,514 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/data/024b5f9f4/382d5a86761340ed85307fa3bf2ffd1d/FLAG3bfd989ff [2022-12-14 09:29:10,528 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/data/024b5f9f4/382d5a86761340ed85307fa3bf2ffd1d [2022-12-14 09:29:10,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:29:10,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:29:10,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:29:10,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:29:10,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:29:10,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:29:10" (1/1) ... [2022-12-14 09:29:10,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5397eea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:10, skipping insertion in model container [2022-12-14 09:29:10,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:29:10" (1/1) ... [2022-12-14 09:29:10,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:29:10,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:29:11,261 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 09:29:11,273 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 09:29:11,285 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 09:29:11,406 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 09:29:11,410 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 09:29:11,410 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 09:29:11,417 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 09:29:11,424 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 09:29:11,430 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 09:29:11,450 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 09:29:11,456 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 09:29:11,458 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 09:29:11,473 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 09:29:11,532 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 09:29:11,533 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 09:29:11,544 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 09:29:11,544 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,568 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 09:29:11,677 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 09:29:11,710 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,790 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 09:29:11,790 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 09:29:11,791 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 09:29:11,792 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 09:29:11,793 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 09:29:11,793 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 09:29:11,804 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,806 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,807 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,807 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,808 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,809 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 09:29:11,809 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 09:29:11,809 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 09:29:11,812 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,814 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 09:29:11,814 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,816 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,817 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:11,817 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:11,820 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,820 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,820 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,821 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,821 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,821 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:11,822 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,823 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:11,823 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:11,823 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:11,823 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:11,824 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,824 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,824 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,824 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,825 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,825 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,825 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,826 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 09:29:11,826 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 09:29:11,827 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,827 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,828 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,830 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,833 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 09:29:11,834 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,838 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,839 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,840 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:29:11,842 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,842 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,842 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,843 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,844 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,844 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,845 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,845 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,846 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,847 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,853 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:29:11,855 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,856 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,856 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,856 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,857 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,857 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,857 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,858 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,858 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,859 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,859 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,859 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,859 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,860 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,860 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,863 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 09:29:11,864 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 09:29:11,865 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 09:29:11,865 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 09:29:11,866 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,869 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,871 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,871 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 09:29:11,871 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,871 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 09:29:11,872 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,872 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,872 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,873 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,874 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,874 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,875 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,875 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,875 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,875 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,876 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,876 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,877 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,877 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,878 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,878 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,878 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,878 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,878 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,879 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,879 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,879 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,879 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,879 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,880 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,880 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,880 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,880 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,880 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,881 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,881 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,881 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,881 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,881 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,896 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,897 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,897 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,898 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,898 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,898 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,899 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,899 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,899 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,899 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,900 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,900 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,900 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,901 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,901 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,901 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,902 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,902 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,902 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,902 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,903 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,903 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,903 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:11,904 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,904 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,904 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,904 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,905 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,905 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,905 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,906 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,909 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 09:29:11,911 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,911 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,912 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,917 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:29:11,918 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:29:11,919 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:29:11,930 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 09:29:11,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,940 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 09:29:11,941 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,942 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,942 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:11,948 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:11,949 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:11,949 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:11,949 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:11,950 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:11,955 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:11,956 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:11,956 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:11,956 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:11,957 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:11,957 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:11,965 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,966 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,969 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,969 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,972 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,973 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,973 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,979 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,979 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,981 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,981 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,983 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,983 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,985 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,986 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,987 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,987 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,988 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,988 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,988 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,989 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,989 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,991 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,991 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,992 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,993 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,993 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:11,993 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:11,995 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:11,995 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:11,996 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:29:11,997 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:29:12,003 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 09:29:12,003 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 09:29:12,003 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 09:29:12,245 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 09:29:12,245 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 09:29:12,249 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 09:29:12,253 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 09:29:12,253 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 09:29:12,263 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 09:29:12,264 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 09:29:12,270 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 09:29:12,271 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 09:29:12,273 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 09:29:12,273 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 09:29:12,274 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 09:29:12,275 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:29:12,275 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:29:12,276 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 09:29:12,277 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 09:29:12,277 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 09:29:12,278 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 09:29:12,278 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 09:29:12,279 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 09:29:12,329 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 09:29:12,329 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:29:12,338 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 09:29:12,892 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_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2022-12-14 09:29:12,896 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_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2022-12-14 09:29:12,897 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_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2022-12-14 09:29:12,897 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_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2022-12-14 09:29:12,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:29:12,957 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:29:13,047 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 09:29:13,048 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 09:29:13,048 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 09:29:13,053 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 09:29:13,054 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 09:29:13,054 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 09:29:13,055 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 09:29:13,056 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 09:29:13,057 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 09:29:13,060 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 09:29:13,061 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 09:29:13,062 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 09:29:13,063 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 09:29:13,065 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 09:29:13,065 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 09:29:13,066 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 09:29:13,067 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,068 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 09:29:13,070 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 09:29:13,072 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,074 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,074 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 09:29:13,075 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 09:29:13,075 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 09:29:13,077 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 09:29:13,077 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 09:29:13,078 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 09:29:13,084 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,085 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,085 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,086 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,086 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,086 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 09:29:13,087 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 09:29:13,087 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 09:29:13,089 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,090 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 09:29:13,091 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,092 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,093 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:13,093 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:13,096 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,096 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,096 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,097 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,097 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,097 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:13,098 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,099 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:13,099 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:13,099 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:13,099 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:13,099 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,100 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,100 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,100 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,101 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,101 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,101 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,101 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 09:29:13,102 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 09:29:13,102 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,102 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,104 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,105 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,106 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,107 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 09:29:13,108 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,108 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,112 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,112 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,113 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:29:13,115 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,115 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,115 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,116 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,116 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,116 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,117 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,117 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,117 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,118 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,119 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:29:13,120 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,120 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,121 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,121 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,121 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,121 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,121 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,122 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,122 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,123 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,123 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,123 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,123 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,124 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,124 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,127 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 09:29:13,128 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 09:29:13,128 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 09:29:13,128 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 09:29:13,129 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,131 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,132 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,132 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 09:29:13,132 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,132 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 09:29:13,133 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,133 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,133 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,134 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,134 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,134 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,134 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,135 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,135 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,135 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,135 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,135 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,136 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,136 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,136 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,136 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,136 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,137 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,137 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,137 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,137 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,137 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,137 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,137 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,138 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,138 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,138 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,138 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,138 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,139 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,139 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,139 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,139 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,140 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,140 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,141 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,141 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,141 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,141 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,141 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,142 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,142 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,142 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,142 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,142 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,143 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,143 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,143 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,143 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,143 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,143 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,144 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,144 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,144 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,144 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,144 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,145 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-14 09:29:13,145 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,145 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,145 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,145 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,145 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,145 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,146 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,146 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,148 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 09:29:13,149 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,149 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,150 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,150 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:29:13,151 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:29:13,151 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:29:13,153 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 09:29:13,153 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,155 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 09:29:13,156 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,156 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,157 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-14 09:29:13,158 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:13,158 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:13,158 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:13,158 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:13,159 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:13,159 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:13,159 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:13,160 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:13,160 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-14 09:29:13,160 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:13,160 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-14 09:29:13,163 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,163 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,165 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,165 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,165 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,165 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,167 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,167 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,167 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,167 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,168 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,168 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,168 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,169 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,169 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,171 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,171 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,172 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,172 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,172 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,173 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,173 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,173 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,174 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,174 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,176 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,176 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,176 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,176 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,178 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,178 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,178 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:29:13,179 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:29:13,195 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 09:29:13,195 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-14 09:29:13,195 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:29:13,196 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:29:13,197 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 09:29:13,197 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 09:29:13,197 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 09:29:13,204 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 09:29:13,205 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 09:29:13,207 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 09:29:13,209 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 09:29:13,209 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 09:29:13,215 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 09:29:13,216 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 09:29:13,222 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 09:29:13,223 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 09:29:13,226 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 09:29:13,226 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 09:29:13,226 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 09:29:13,227 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:29:13,227 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 09:29:13,227 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 09:29:13,228 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 09:29:13,228 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 09:29:13,228 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 09:29:13,228 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 09:29:13,229 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 09:29:13,230 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 09:29:13,231 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:29:13,231 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 09:29:13,247 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2022-12-14 09:29:13,247 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2022-12-14 09:29:13,248 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_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2022-12-14 09:29:13,248 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_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2022-12-14 09:29:13,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:29:13,372 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:29:13,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13 WrapperNode [2022-12-14 09:29:13,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:29:13,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:29:13,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:29:13,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:29:13,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,566 INFO L138 Inliner]: procedures = 423, calls = 1852, calls flagged for inlining = 204, calls inlined = 187, statements flattened = 4788 [2022-12-14 09:29:13,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:29:13,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:29:13,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:29:13,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:29:13,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,689 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:29:13,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:29:13,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:29:13,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:29:13,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (1/1) ... [2022-12-14 09:29:13,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:29:13,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:29:13,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:29:13,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:29:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 09:29:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 09:29:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 09:29:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 09:29:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 09:29:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 09:29:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 09:29:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 09:29:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 09:29:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 09:29:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-12-14 09:29:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-12-14 09:29:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-12-14 09:29:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-12-14 09:29:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure desc_to_dma [2022-12-14 09:29:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_to_dma [2022-12-14 09:29:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-12-14 09:29:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-12-14 09:29:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-12-14 09:29:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-12-14 09:29:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 09:29:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 09:29:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 09:29:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 09:29:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure mii_write [2022-12-14 09:29:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_write [2022-12-14 09:29:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 09:29:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 09:29:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-12-14 09:29:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-12-14 09:29:13,791 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 09:29:13,791 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 09:29:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 09:29:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 09:29:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 09:29:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 09:29:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast [2022-12-14 09:29:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast [2022-12-14 09:29:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 09:29:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 09:29:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:29:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-12-14 09:29:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-12-14 09:29:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 09:29:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 09:29:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 09:29:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 09:29:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 09:29:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 09:29:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 09:29:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 09:29:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 09:29:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 09:29:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 09:29:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 09:29:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:29:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 09:29:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 09:29:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 09:29:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 09:29:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 09:29:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 09:29:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 09:29:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 09:29:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 09:29:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 09:29:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 09:29:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 09:29:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 09:29:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 09:29:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 09:29:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 09:29:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:29:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 09:29:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 09:29:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 09:29:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 09:29:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure rio_close [2022-12-14 09:29:13,794 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_close [2022-12-14 09:29:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:29:13,794 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2022-12-14 09:29:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2022-12-14 09:29:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 09:29:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 09:29:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 09:29:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 09:29:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:29:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-12-14 09:29:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-12-14 09:29:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 09:29:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 09:29:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 09:29:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 09:29:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure mii_read [2022-12-14 09:29:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_read [2022-12-14 09:29:13,795 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-12-14 09:29:13,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-12-14 09:29:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-12-14 09:29:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-12-14 09:29:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 09:29:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 09:29:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 09:29:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 09:29:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-14 09:29:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-14 09:29:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 09:29:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 09:29:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:29:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:29:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 09:29:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 09:29:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 09:29:13,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 09:29:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 09:29:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 09:29:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 09:29:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 09:29:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2022-12-14 09:29:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2022-12-14 09:29:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 09:29:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 09:29:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 09:29:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 09:29:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-12-14 09:29:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-12-14 09:29:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 09:29:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 09:29:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-12-14 09:29:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-12-14 09:29:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-12-14 09:29:13,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-12-14 09:29:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 09:29:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 09:29:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:29:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netdev_private [2022-12-14 09:29:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netdev_private [2022-12-14 09:29:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure rio_open [2022-12-14 09:29:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_open [2022-12-14 09:29:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:29:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-12-14 09:29:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-12-14 09:29:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2022-12-14 09:29:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2022-12-14 09:29:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:29:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 09:29:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-12-14 09:29:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 09:29:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 09:29:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 09:29:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 09:29:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2022-12-14 09:29:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2022-12-14 09:29:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 09:29:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 09:29:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 09:29:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 09:29:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure rio_free_tx [2022-12-14 09:29:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_free_tx [2022-12-14 09:29:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure rio_tx_timeout [2022-12-14 09:29:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_tx_timeout [2022-12-14 09:29:13,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netdev_private [2022-12-14 09:29:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netdev_private [2022-12-14 09:29:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure rio_remove1 [2022-12-14 09:29:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_remove1 [2022-12-14 09:29:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:29:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 09:29:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 09:29:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2022-12-14 09:29:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2022-12-14 09:29:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2022-12-14 09:29:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2022-12-14 09:29:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 09:29:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 09:29:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_media [2022-12-14 09:29:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_media [2022-12-14 09:29:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-12-14 09:29:13,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-12-14 09:29:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 09:29:13,801 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 09:29:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:29:13,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 09:29:13,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 09:29:14,316 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:29:14,318 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:29:14,372 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 09:29:16,889 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 09:29:16,961 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:29:18,372 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:29:18,372 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 09:29:18,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:29:18 BoogieIcfgContainer [2022-12-14 09:29:18,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:29:18,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:29:18,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:29:18,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:29:18,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:29:10" (1/3) ... [2022-12-14 09:29:18,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fdfa3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:29:18, skipping insertion in model container [2022-12-14 09:29:18,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:13" (2/3) ... [2022-12-14 09:29:18,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fdfa3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:29:18, skipping insertion in model container [2022-12-14 09:29:18,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:29:18" (3/3) ... [2022-12-14 09:29:18,384 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2022-12-14 09:29:18,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:29:18,401 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 09:29:18,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:29:18,466 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;@ea93952, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:29:18,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 09:29:18,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 1340 states, 778 states have (on average 1.2776349614395888) internal successors, (994), 811 states have internal predecessors, (994), 482 states have call successors, (482), 83 states have call predecessors, (482), 82 states have return successors, (476), 473 states have call predecessors, (476), 476 states have call successors, (476) [2022-12-14 09:29:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-14 09:29:18,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:18,499 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 09:29:18,500 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 09:29:18,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:18,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1232347509, now seen corresponding path program 1 times [2022-12-14 09:29:18,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:18,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298418588] [2022-12-14 09:29:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:18,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:19,069 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 09:29:19,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:19,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298418588] [2022-12-14 09:29:19,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298418588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:19,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:19,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:29:19,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380310277] [2022-12-14 09:29:19,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:19,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:29:19,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:19,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:29:19,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:19,101 INFO L87 Difference]: Start difference. First operand has 1340 states, 778 states have (on average 1.2776349614395888) internal successors, (994), 811 states have internal predecessors, (994), 482 states have call successors, (482), 83 states have call predecessors, (482), 82 states have return successors, (476), 473 states have call predecessors, (476), 476 states have call successors, (476) 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 09:29:21,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:29:23,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:23,348 INFO L93 Difference]: Finished difference Result 3747 states and 5498 transitions. [2022-12-14 09:29:23,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:29:23,351 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 09:29:23,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:23,371 INFO L225 Difference]: With dead ends: 3747 [2022-12-14 09:29:23,371 INFO L226 Difference]: Without dead ends: 2416 [2022-12-14 09:29:23,378 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 09:29:23,380 INFO L413 NwaCegarLoop]: 2054 mSDtfsCounter, 1601 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:23,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 3684 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:29:23,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2022-12-14 09:29:23,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2401. [2022-12-14 09:29:23,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2401 states, 1392 states have (on average 1.2658045977011494) internal successors, (1762), 1445 states have internal predecessors, (1762), 851 states have call successors, (851), 156 states have call predecessors, (851), 155 states have return successors, (847), 842 states have call predecessors, (847), 847 states have call successors, (847) [2022-12-14 09:29:23,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2401 states to 2401 states and 3460 transitions. [2022-12-14 09:29:23,527 INFO L78 Accepts]: Start accepts. Automaton has 2401 states and 3460 transitions. Word has length 111 [2022-12-14 09:29:23,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:23,527 INFO L495 AbstractCegarLoop]: Abstraction has 2401 states and 3460 transitions. [2022-12-14 09:29:23,528 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 09:29:23,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2401 states and 3460 transitions. [2022-12-14 09:29:23,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-14 09:29:23,530 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:23,530 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] [2022-12-14 09:29:23,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:29:23,531 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 09:29:23,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:23,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1857398695, now seen corresponding path program 1 times [2022-12-14 09:29:23,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:23,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138980673] [2022-12-14 09:29:23,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:23,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:23,761 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 09:29:23,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:23,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138980673] [2022-12-14 09:29:23,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138980673] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:23,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:23,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:29:23,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394933984] [2022-12-14 09:29:23,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:23,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:29:23,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:23,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:29:23,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:23,765 INFO L87 Difference]: Start difference. First operand 2401 states and 3460 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-12-14 09:29:27,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:29:29,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:29:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:29,853 INFO L93 Difference]: Finished difference Result 6901 states and 9931 transitions. [2022-12-14 09:29:29,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:29:29,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2022-12-14 09:29:29,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:29,876 INFO L225 Difference]: With dead ends: 6901 [2022-12-14 09:29:29,876 INFO L226 Difference]: Without dead ends: 4519 [2022-12-14 09:29:29,885 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 09:29:29,886 INFO L413 NwaCegarLoop]: 2076 mSDtfsCounter, 1623 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:29,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 3672 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 09:29:29,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2022-12-14 09:29:30,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 4478. [2022-12-14 09:29:30,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4478 states, 2600 states have (on average 1.265) internal successors, (3289), 2701 states have internal predecessors, (3289), 1575 states have call successors, (1575), 303 states have call predecessors, (1575), 300 states have return successors, (1581), 1551 states have call predecessors, (1581), 1571 states have call successors, (1581) [2022-12-14 09:29:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4478 states to 4478 states and 6445 transitions. [2022-12-14 09:29:30,091 INFO L78 Accepts]: Start accepts. Automaton has 4478 states and 6445 transitions. Word has length 115 [2022-12-14 09:29:30,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:30,091 INFO L495 AbstractCegarLoop]: Abstraction has 4478 states and 6445 transitions. [2022-12-14 09:29:30,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-12-14 09:29:30,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4478 states and 6445 transitions. [2022-12-14 09:29:30,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-12-14 09:29:30,094 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:30,094 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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 09:29:30,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:29:30,095 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 09:29:30,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:30,095 INFO L85 PathProgramCache]: Analyzing trace with hash -307947839, now seen corresponding path program 1 times [2022-12-14 09:29:30,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:30,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596882542] [2022-12-14 09:29:30,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:30,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:30,502 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-12-14 09:29:30,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:30,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596882542] [2022-12-14 09:29:30,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596882542] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:30,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:30,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:29:30,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370486086] [2022-12-14 09:29:30,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:30,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:29:30,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:30,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:29:30,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:29:30,504 INFO L87 Difference]: Start difference. First operand 4478 states and 6445 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 09:29:36,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:29:40,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:29:40,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:40,995 INFO L93 Difference]: Finished difference Result 16004 states and 23005 transitions. [2022-12-14 09:29:40,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:29:40,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 129 [2022-12-14 09:29:40,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:41,037 INFO L225 Difference]: With dead ends: 16004 [2022-12-14 09:29:41,037 INFO L226 Difference]: Without dead ends: 11545 [2022-12-14 09:29:41,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:29:41,051 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 3662 mSDsluCounter, 4274 mSDsCounter, 0 mSdLazyCounter, 2646 mSolverCounterSat, 554 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3791 SdHoareTripleChecker+Valid, 6683 SdHoareTripleChecker+Invalid, 3202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 554 IncrementalHoareTripleChecker+Valid, 2646 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:41,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3791 Valid, 6683 Invalid, 3202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [554 Valid, 2646 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-12-14 09:29:41,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2022-12-14 09:29:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 10764. [2022-12-14 09:29:41,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10764 states, 6315 states have (on average 1.265083135391924) internal successors, (7989), 6558 states have internal predecessors, (7989), 3663 states have call successors, (3663), 792 states have call predecessors, (3663), 783 states have return successors, (3669), 3602 states have call predecessors, (3669), 3659 states have call successors, (3669) [2022-12-14 09:29:41,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10764 states to 10764 states and 15321 transitions. [2022-12-14 09:29:41,466 INFO L78 Accepts]: Start accepts. Automaton has 10764 states and 15321 transitions. Word has length 129 [2022-12-14 09:29:41,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:41,466 INFO L495 AbstractCegarLoop]: Abstraction has 10764 states and 15321 transitions. [2022-12-14 09:29:41,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 09:29:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 10764 states and 15321 transitions. [2022-12-14 09:29:41,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-14 09:29:41,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:41,468 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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] [2022-12-14 09:29:41,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:29:41,469 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:29:41,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:41,469 INFO L85 PathProgramCache]: Analyzing trace with hash -726292776, now seen corresponding path program 1 times [2022-12-14 09:29:41,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:41,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627369194] [2022-12-14 09:29:41,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:41,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:41,694 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-12-14 09:29:41,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:41,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627369194] [2022-12-14 09:29:41,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627369194] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:41,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:41,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:29:41,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003071867] [2022-12-14 09:29:41,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:41,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:29:41,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:41,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:29:41,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:41,696 INFO L87 Difference]: Start difference. First operand 10764 states and 15321 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 09:29:45,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:29:46,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:46,652 INFO L93 Difference]: Finished difference Result 21517 states and 30474 transitions. [2022-12-14 09:29:46,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:29:46,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2022-12-14 09:29:46,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:46,697 INFO L225 Difference]: With dead ends: 21517 [2022-12-14 09:29:46,698 INFO L226 Difference]: Without dead ends: 10772 [2022-12-14 09:29:46,725 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 09:29:46,726 INFO L413 NwaCegarLoop]: 2116 mSDtfsCounter, 1368 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 3709 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:46,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 3709 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 09:29:46,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10772 states. [2022-12-14 09:29:47,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10772 to 10729. [2022-12-14 09:29:47,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10729 states, 6250 states have (on average 1.25856) internal successors, (7866), 6499 states have internal predecessors, (7866), 3610 states have call successors, (3610), 881 states have call predecessors, (3610), 866 states have return successors, (3627), 3519 states have call predecessors, (3627), 3606 states have call successors, (3627) [2022-12-14 09:29:47,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10729 states to 10729 states and 15103 transitions. [2022-12-14 09:29:47,160 INFO L78 Accepts]: Start accepts. Automaton has 10729 states and 15103 transitions. Word has length 131 [2022-12-14 09:29:47,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:47,161 INFO L495 AbstractCegarLoop]: Abstraction has 10729 states and 15103 transitions. [2022-12-14 09:29:47,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-14 09:29:47,161 INFO L276 IsEmpty]: Start isEmpty. Operand 10729 states and 15103 transitions. [2022-12-14 09:29:47,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-12-14 09:29:47,163 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:47,163 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 9, 9, 9, 9, 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] [2022-12-14 09:29:47,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:29:47,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 09:29:47,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:47,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1775636922, now seen corresponding path program 1 times [2022-12-14 09:29:47,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:47,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962963138] [2022-12-14 09:29:47,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:47,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-12-14 09:29:47,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:47,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962963138] [2022-12-14 09:29:47,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962963138] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:47,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:47,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:29:47,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023806586] [2022-12-14 09:29:47,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:47,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:29:47,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:47,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:29:47,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:47,326 INFO L87 Difference]: Start difference. First operand 10729 states and 15103 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 09:29:50,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:29:52,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:52,177 INFO L93 Difference]: Finished difference Result 30233 states and 42604 transitions. [2022-12-14 09:29:52,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:29:52,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 133 [2022-12-14 09:29:52,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:52,244 INFO L225 Difference]: With dead ends: 30233 [2022-12-14 09:29:52,244 INFO L226 Difference]: Without dead ends: 19523 [2022-12-14 09:29:52,284 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 09:29:52,285 INFO L413 NwaCegarLoop]: 2105 mSDtfsCounter, 1651 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 3749 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:52,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 3749 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 09:29:52,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19523 states. [2022-12-14 09:29:52,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19523 to 19462. [2022-12-14 09:29:53,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19462 states, 11325 states have (on average 1.2594260485651214) internal successors, (14263), 11802 states have internal predecessors, (14263), 6565 states have call successors, (6565), 1598 states have call predecessors, (6565), 1569 states have return successors, (6603), 6370 states have call predecessors, (6603), 6561 states have call successors, (6603) [2022-12-14 09:29:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19462 states to 19462 states and 27431 transitions. [2022-12-14 09:29:53,058 INFO L78 Accepts]: Start accepts. Automaton has 19462 states and 27431 transitions. Word has length 133 [2022-12-14 09:29:53,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:53,059 INFO L495 AbstractCegarLoop]: Abstraction has 19462 states and 27431 transitions. [2022-12-14 09:29:53,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 09:29:53,059 INFO L276 IsEmpty]: Start isEmpty. Operand 19462 states and 27431 transitions. [2022-12-14 09:29:53,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-14 09:29:53,061 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:53,061 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:53,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:29:53,061 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 09:29:53,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:53,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1722007434, now seen corresponding path program 1 times [2022-12-14 09:29:53,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:53,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267770949] [2022-12-14 09:29:53,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:53,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:53,163 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-12-14 09:29:53,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:53,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267770949] [2022-12-14 09:29:53,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267770949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:53,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:53,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:29:53,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288794243] [2022-12-14 09:29:53,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:53,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:29:53,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:53,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:29:53,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:53,165 INFO L87 Difference]: Start difference. First operand 19462 states and 27431 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 09:29:56,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:29:58,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:58,721 INFO L93 Difference]: Finished difference Result 50512 states and 70909 transitions. [2022-12-14 09:29:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:29:58,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2022-12-14 09:29:58,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:58,834 INFO L225 Difference]: With dead ends: 50512 [2022-12-14 09:29:58,834 INFO L226 Difference]: Without dead ends: 31069 [2022-12-14 09:29:58,887 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 09:29:58,888 INFO L413 NwaCegarLoop]: 2006 mSDtfsCounter, 1397 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:58,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 3610 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 531 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-12-14 09:29:58,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31069 states. [2022-12-14 09:29:59,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31069 to 31028. [2022-12-14 09:29:59,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31028 states, 18040 states have (on average 1.2478381374722838) internal successors, (22511), 18817 states have internal predecessors, (22511), 10366 states have call successors, (10366), 2676 states have call predecessors, (10366), 2619 states have return successors, (10452), 9975 states have call predecessors, (10452), 10362 states have call successors, (10452) [2022-12-14 09:30:00,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31028 states to 31028 states and 43329 transitions. [2022-12-14 09:30:00,071 INFO L78 Accepts]: Start accepts. Automaton has 31028 states and 43329 transitions. Word has length 134 [2022-12-14 09:30:00,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:00,071 INFO L495 AbstractCegarLoop]: Abstraction has 31028 states and 43329 transitions. [2022-12-14 09:30:00,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 09:30:00,072 INFO L276 IsEmpty]: Start isEmpty. Operand 31028 states and 43329 transitions. [2022-12-14 09:30:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-12-14 09:30:00,073 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:00,073 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 09:30:00,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:30:00,073 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 09:30:00,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:00,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1595906344, now seen corresponding path program 1 times [2022-12-14 09:30:00,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:00,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530304184] [2022-12-14 09:30:00,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:00,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:00,336 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 09:30:00,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:00,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530304184] [2022-12-14 09:30:00,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530304184] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:00,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:00,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:30:00,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808037534] [2022-12-14 09:30:00,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:00,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:30:00,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:00,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:30:00,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:00,338 INFO L87 Difference]: Start difference. First operand 31028 states and 43329 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 09:30:03,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:30:07,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:07,686 INFO L93 Difference]: Finished difference Result 43221 states and 60061 transitions. [2022-12-14 09:30:07,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:30:07,688 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 09:30:07,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:07,803 INFO L225 Difference]: With dead ends: 43221 [2022-12-14 09:30:07,803 INFO L226 Difference]: Without dead ends: 43219 [2022-12-14 09:30:07,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:30:07,820 INFO L413 NwaCegarLoop]: 2000 mSDtfsCounter, 1385 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 7606 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:07,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 7606 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 09:30:07,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43219 states. [2022-12-14 09:30:09,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43219 to 43202. [2022-12-14 09:30:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43202 states, 25078 states have (on average 1.2421644469255921) internal successors, (31151), 26167 states have internal predecessors, (31151), 14384 states have call successors, (14384), 3823 states have call predecessors, (14384), 3737 states have return successors, (14508), 13800 states have call predecessors, (14508), 14376 states have call successors, (14508) [2022-12-14 09:30:09,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43202 states to 43202 states and 60043 transitions. [2022-12-14 09:30:09,511 INFO L78 Accepts]: Start accepts. Automaton has 43202 states and 60043 transitions. Word has length 153 [2022-12-14 09:30:09,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:09,511 INFO L495 AbstractCegarLoop]: Abstraction has 43202 states and 60043 transitions. [2022-12-14 09:30:09,511 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 09:30:09,511 INFO L276 IsEmpty]: Start isEmpty. Operand 43202 states and 60043 transitions. [2022-12-14 09:30:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-14 09:30:09,513 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:09,513 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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] [2022-12-14 09:30:09,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:30:09,513 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 09:30:09,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:09,513 INFO L85 PathProgramCache]: Analyzing trace with hash 487372346, now seen corresponding path program 1 times [2022-12-14 09:30:09,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:09,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014654259] [2022-12-14 09:30:09,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:09,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-12-14 09:30:09,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:09,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014654259] [2022-12-14 09:30:09,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014654259] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:09,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:09,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:30:09,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498937205] [2022-12-14 09:30:09,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:09,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:30:09,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:09,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:30:09,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:09,751 INFO L87 Difference]: Start difference. First operand 43202 states and 60043 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:30:13,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:30:17,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:30:17,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:17,877 INFO L93 Difference]: Finished difference Result 43225 states and 60064 transitions. [2022-12-14 09:30:17,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:30:17,878 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 161 [2022-12-14 09:30:17,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:18,005 INFO L225 Difference]: With dead ends: 43225 [2022-12-14 09:30:18,005 INFO L226 Difference]: Without dead ends: 43223 [2022-12-14 09:30:18,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:30:18,027 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1379 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:18,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1390 Valid, 7609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 09:30:18,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43223 states. [2022-12-14 09:30:19,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43223 to 43206. [2022-12-14 09:30:19,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43206 states, 25081 states have (on average 1.2421354810414258) internal successors, (31154), 26170 states have internal predecessors, (31154), 14384 states have call successors, (14384), 3824 states have call predecessors, (14384), 3738 states have return successors, (14508), 13800 states have call predecessors, (14508), 14376 states have call successors, (14508) [2022-12-14 09:30:19,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43206 states to 43206 states and 60046 transitions. [2022-12-14 09:30:19,769 INFO L78 Accepts]: Start accepts. Automaton has 43206 states and 60046 transitions. Word has length 161 [2022-12-14 09:30:19,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:19,770 INFO L495 AbstractCegarLoop]: Abstraction has 43206 states and 60046 transitions. [2022-12-14 09:30:19,770 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, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:30:19,770 INFO L276 IsEmpty]: Start isEmpty. Operand 43206 states and 60046 transitions. [2022-12-14 09:30:19,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-14 09:30:19,772 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:19,772 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 09:30:19,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:30:19,772 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 09:30:19,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:19,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1413496381, now seen corresponding path program 1 times [2022-12-14 09:30:19,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:19,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824471080] [2022-12-14 09:30:19,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:19,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:20,009 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 09:30:20,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:20,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824471080] [2022-12-14 09:30:20,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824471080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:20,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:20,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:30:20,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073418029] [2022-12-14 09:30:20,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:20,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:30:20,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:20,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:30:20,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:20,012 INFO L87 Difference]: Start difference. First operand 43206 states and 60046 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 09:30:23,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:30:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:27,142 INFO L93 Difference]: Finished difference Result 43229 states and 60067 transitions. [2022-12-14 09:30:27,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:30:27,144 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 09:30:27,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:27,273 INFO L225 Difference]: With dead ends: 43229 [2022-12-14 09:30:27,273 INFO L226 Difference]: Without dead ends: 43227 [2022-12-14 09:30:27,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:30:27,292 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1379 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:27,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 7609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-12-14 09:30:27,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43227 states. [2022-12-14 09:30:28,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43227 to 43210. [2022-12-14 09:30:28,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43210 states, 25084 states have (on average 1.2421065220857916) internal successors, (31157), 26173 states have internal predecessors, (31157), 14384 states have call successors, (14384), 3825 states have call predecessors, (14384), 3739 states have return successors, (14508), 13800 states have call predecessors, (14508), 14376 states have call successors, (14508) [2022-12-14 09:30:29,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43210 states to 43210 states and 60049 transitions. [2022-12-14 09:30:29,040 INFO L78 Accepts]: Start accepts. Automaton has 43210 states and 60049 transitions. Word has length 167 [2022-12-14 09:30:29,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:29,041 INFO L495 AbstractCegarLoop]: Abstraction has 43210 states and 60049 transitions. [2022-12-14 09:30:29,041 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 09:30:29,041 INFO L276 IsEmpty]: Start isEmpty. Operand 43210 states and 60049 transitions. [2022-12-14 09:30:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-14 09:30:29,044 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:29,044 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 09:30:29,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:30:29,045 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 09:30:29,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:29,045 INFO L85 PathProgramCache]: Analyzing trace with hash -565787046, now seen corresponding path program 1 times [2022-12-14 09:30:29,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:29,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150752066] [2022-12-14 09:30:29,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:29,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:29,443 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 09:30:29,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:29,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150752066] [2022-12-14 09:30:29,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150752066] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:29,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:29,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:30:29,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698460271] [2022-12-14 09:30:29,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:29,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:30:29,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:29,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:30:29,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:29,445 INFO L87 Difference]: Start difference. First operand 43210 states and 60049 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 09:30:32,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:30:37,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:30:37,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:37,793 INFO L93 Difference]: Finished difference Result 43233 states and 60070 transitions. [2022-12-14 09:30:37,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:30:37,795 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 09:30:37,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:37,901 INFO L225 Difference]: With dead ends: 43233 [2022-12-14 09:30:37,901 INFO L226 Difference]: Without dead ends: 43231 [2022-12-14 09:30:37,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:30:37,914 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1379 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:37,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 7609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 09:30:37,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43231 states. [2022-12-14 09:30:39,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43231 to 43214. [2022-12-14 09:30:39,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43214 states, 25087 states have (on average 1.2420775700562043) internal successors, (31160), 26176 states have internal predecessors, (31160), 14384 states have call successors, (14384), 3826 states have call predecessors, (14384), 3740 states have return successors, (14508), 13800 states have call predecessors, (14508), 14376 states have call successors, (14508) [2022-12-14 09:30:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43214 states to 43214 states and 60052 transitions. [2022-12-14 09:30:39,735 INFO L78 Accepts]: Start accepts. Automaton has 43214 states and 60052 transitions. Word has length 171 [2022-12-14 09:30:39,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:39,735 INFO L495 AbstractCegarLoop]: Abstraction has 43214 states and 60052 transitions. [2022-12-14 09:30:39,736 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 09:30:39,736 INFO L276 IsEmpty]: Start isEmpty. Operand 43214 states and 60052 transitions. [2022-12-14 09:30:39,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-14 09:30:39,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:39,740 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 09:30:39,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:30:39,741 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 09:30:39,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:39,741 INFO L85 PathProgramCache]: Analyzing trace with hash 972246632, now seen corresponding path program 1 times [2022-12-14 09:30:39,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:39,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115821682] [2022-12-14 09:30:39,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:39,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:40,125 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 09:30:40,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:40,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115821682] [2022-12-14 09:30:40,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115821682] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:40,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:40,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:30:40,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718949134] [2022-12-14 09:30:40,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:40,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:30:40,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:40,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:30:40,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:40,127 INFO L87 Difference]: Start difference. First operand 43214 states and 60052 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 09:30:43,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:30:47,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:47,883 INFO L93 Difference]: Finished difference Result 43237 states and 60073 transitions. [2022-12-14 09:30:47,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:30:47,884 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 09:30:47,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:48,008 INFO L225 Difference]: With dead ends: 43237 [2022-12-14 09:30:48,008 INFO L226 Difference]: Without dead ends: 43235 [2022-12-14 09:30:48,030 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 09:30:48,031 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1380 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:48,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 7609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 09:30:48,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43235 states. [2022-12-14 09:30:49,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43235 to 43218. [2022-12-14 09:30:49,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43218 states, 25090 states have (on average 1.2420486249501794) internal successors, (31163), 26179 states have internal predecessors, (31163), 14384 states have call successors, (14384), 3827 states have call predecessors, (14384), 3741 states have return successors, (14508), 13800 states have call predecessors, (14508), 14376 states have call successors, (14508) [2022-12-14 09:30:49,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43218 states to 43218 states and 60055 transitions. [2022-12-14 09:30:49,727 INFO L78 Accepts]: Start accepts. Automaton has 43218 states and 60055 transitions. Word has length 173 [2022-12-14 09:30:49,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:49,728 INFO L495 AbstractCegarLoop]: Abstraction has 43218 states and 60055 transitions. [2022-12-14 09:30:49,728 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 09:30:49,728 INFO L276 IsEmpty]: Start isEmpty. Operand 43218 states and 60055 transitions. [2022-12-14 09:30:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-12-14 09:30:49,732 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:49,733 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 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] [2022-12-14 09:30:49,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:30:49,733 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 09:30:49,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1752445197, now seen corresponding path program 1 times [2022-12-14 09:30:49,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:49,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983331302] [2022-12-14 09:30:49,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:49,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:50,035 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2022-12-14 09:30:50,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:50,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983331302] [2022-12-14 09:30:50,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983331302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:50,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:50,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:30:50,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123712925] [2022-12-14 09:30:50,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:50,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:30:50,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:50,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:30:50,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:50,038 INFO L87 Difference]: Start difference. First operand 43218 states and 60055 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, (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 09:30:53,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:30:57,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:57,211 INFO L93 Difference]: Finished difference Result 43241 states and 60076 transitions. [2022-12-14 09:30:57,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:30:57,212 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, (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 178 [2022-12-14 09:30:57,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:57,350 INFO L225 Difference]: With dead ends: 43241 [2022-12-14 09:30:57,350 INFO L226 Difference]: Without dead ends: 43239 [2022-12-14 09:30:57,370 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 09:30:57,371 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1380 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:57,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1387 Valid, 7609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 09:30:57,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43239 states. [2022-12-14 09:30:59,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43239 to 43222. [2022-12-14 09:30:59,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43222 states, 25093 states have (on average 1.2420196867652333) internal successors, (31166), 26182 states have internal predecessors, (31166), 14384 states have call successors, (14384), 3828 states have call predecessors, (14384), 3742 states have return successors, (14508), 13800 states have call predecessors, (14508), 14376 states have call successors, (14508) [2022-12-14 09:30:59,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43222 states to 43222 states and 60058 transitions. [2022-12-14 09:30:59,224 INFO L78 Accepts]: Start accepts. Automaton has 43222 states and 60058 transitions. Word has length 178 [2022-12-14 09:30:59,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:59,224 INFO L495 AbstractCegarLoop]: Abstraction has 43222 states and 60058 transitions. [2022-12-14 09:30:59,225 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, (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 09:30:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 43222 states and 60058 transitions. [2022-12-14 09:30:59,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-12-14 09:30:59,227 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:59,227 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 09:30:59,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:30:59,227 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 09:30:59,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:59,228 INFO L85 PathProgramCache]: Analyzing trace with hash -463276291, now seen corresponding path program 1 times [2022-12-14 09:30:59,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:59,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181366206] [2022-12-14 09:30:59,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:59,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:59,440 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 09:30:59,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:59,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181366206] [2022-12-14 09:30:59,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181366206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:59,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:59,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:30:59,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314029476] [2022-12-14 09:30:59,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:59,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:30:59,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:59,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:30:59,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:59,442 INFO L87 Difference]: Start difference. First operand 43222 states and 60058 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 09:31:02,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:31:07,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:31:07,425 INFO L93 Difference]: Finished difference Result 43245 states and 60079 transitions. [2022-12-14 09:31:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:31:07,427 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 09:31:07,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:31:07,540 INFO L225 Difference]: With dead ends: 43245 [2022-12-14 09:31:07,540 INFO L226 Difference]: Without dead ends: 43243 [2022-12-14 09:31:07,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:31:07,557 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1379 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:31:07,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 7609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 09:31:07,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43243 states. [2022-12-14 09:31:09,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43243 to 43226. [2022-12-14 09:31:09,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43226 states, 25096 states have (on average 1.2419907554988843) internal successors, (31169), 26185 states have internal predecessors, (31169), 14384 states have call successors, (14384), 3829 states have call predecessors, (14384), 3743 states have return successors, (14508), 13800 states have call predecessors, (14508), 14376 states have call successors, (14508) [2022-12-14 09:31:09,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43226 states to 43226 states and 60061 transitions. [2022-12-14 09:31:09,303 INFO L78 Accepts]: Start accepts. Automaton has 43226 states and 60061 transitions. Word has length 187 [2022-12-14 09:31:09,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:31:09,303 INFO L495 AbstractCegarLoop]: Abstraction has 43226 states and 60061 transitions. [2022-12-14 09:31:09,303 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 09:31:09,303 INFO L276 IsEmpty]: Start isEmpty. Operand 43226 states and 60061 transitions. [2022-12-14 09:31:09,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-12-14 09:31:09,307 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:31:09,307 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 8, 7, 7, 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] [2022-12-14 09:31:09,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:31:09,307 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 09:31:09,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:31:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash -764608870, now seen corresponding path program 1 times [2022-12-14 09:31:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:31:09,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514408217] [2022-12-14 09:31:09,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:31:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:31:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:31:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-12-14 09:31:09,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:31:09,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514408217] [2022-12-14 09:31:09,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514408217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:31:09,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:31:09,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:31:09,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143419532] [2022-12-14 09:31:09,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:31:09,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:31:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:31:09,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:31:09,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:31:09,508 INFO L87 Difference]: Start difference. First operand 43226 states and 60061 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, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 09:31:13,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:31:16,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:31:16,976 INFO L93 Difference]: Finished difference Result 43249 states and 60082 transitions. [2022-12-14 09:31:16,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:31:16,977 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, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 191 [2022-12-14 09:31:16,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:31:17,092 INFO L225 Difference]: With dead ends: 43249 [2022-12-14 09:31:17,092 INFO L226 Difference]: Without dead ends: 43247 [2022-12-14 09:31:17,107 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 09:31:17,107 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1379 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:31:17,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 7609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-12-14 09:31:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43247 states. [2022-12-14 09:31:18,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43247 to 43230. [2022-12-14 09:31:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43230 states, 25099 states have (on average 1.2419618311486513) internal successors, (31172), 26188 states have internal predecessors, (31172), 14384 states have call successors, (14384), 3830 states have call predecessors, (14384), 3744 states have return successors, (14508), 13800 states have call predecessors, (14508), 14376 states have call successors, (14508) [2022-12-14 09:31:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43230 states to 43230 states and 60064 transitions. [2022-12-14 09:31:19,019 INFO L78 Accepts]: Start accepts. Automaton has 43230 states and 60064 transitions. Word has length 191 [2022-12-14 09:31:19,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:31:19,020 INFO L495 AbstractCegarLoop]: Abstraction has 43230 states and 60064 transitions. [2022-12-14 09:31:19,020 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, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 09:31:19,020 INFO L276 IsEmpty]: Start isEmpty. Operand 43230 states and 60064 transitions. [2022-12-14 09:31:19,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-12-14 09:31:19,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:31:19,027 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:31:19,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:31:19,027 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 09:31:19,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:31:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2049922175, now seen corresponding path program 1 times [2022-12-14 09:31:19,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:31:19,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286051796] [2022-12-14 09:31:19,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:31:19,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:31:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:31:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2022-12-14 09:31:19,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:31:19,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286051796] [2022-12-14 09:31:19,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286051796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:31:19,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:31:19,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:31:19,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124743706] [2022-12-14 09:31:19,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:31:19,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:31:19,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:31:19,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:31:19,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:31:19,309 INFO L87 Difference]: Start difference. First operand 43230 states and 60064 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:31:22,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:31:27,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:31:27,249 INFO L93 Difference]: Finished difference Result 73367 states and 101850 transitions. [2022-12-14 09:31:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:31:27,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 190 [2022-12-14 09:31:27,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:31:27,464 INFO L225 Difference]: With dead ends: 73367 [2022-12-14 09:31:27,464 INFO L226 Difference]: Without dead ends: 73365 [2022-12-14 09:31:27,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 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 09:31:27,490 INFO L413 NwaCegarLoop]: 2210 mSDtfsCounter, 1586 mSDsluCounter, 6024 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 8234 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:31:27,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 8234 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1200 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 09:31:27,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73365 states. [2022-12-14 09:31:30,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73365 to 73292. [2022-12-14 09:31:30,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73292 states, 42598 states have (on average 1.242804826517677) internal successors, (52941), 44499 states have internal predecessors, (52941), 24278 states have call successors, (24278), 6591 states have call predecessors, (24278), 6413 states have return successors, (24492), 23222 states have call predecessors, (24492), 24270 states have call successors, (24492) [2022-12-14 09:31:30,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73292 states to 73292 states and 101711 transitions. [2022-12-14 09:31:30,813 INFO L78 Accepts]: Start accepts. Automaton has 73292 states and 101711 transitions. Word has length 190 [2022-12-14 09:31:30,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:31:30,813 INFO L495 AbstractCegarLoop]: Abstraction has 73292 states and 101711 transitions. [2022-12-14 09:31:30,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 09:31:30,813 INFO L276 IsEmpty]: Start isEmpty. Operand 73292 states and 101711 transitions. [2022-12-14 09:31:30,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-12-14 09:31:30,817 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:31:30,818 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 9, 8, 8, 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, 1, 1, 1, 1] [2022-12-14 09:31:30,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:31:30,818 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 09:31:30,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:31:30,818 INFO L85 PathProgramCache]: Analyzing trace with hash -551721123, now seen corresponding path program 1 times [2022-12-14 09:31:30,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:31:30,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811745620] [2022-12-14 09:31:30,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:31:30,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:31:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:31:31,039 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2022-12-14 09:31:31,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:31:31,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811745620] [2022-12-14 09:31:31,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811745620] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:31:31,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:31:31,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:31:31,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441418659] [2022-12-14 09:31:31,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:31:31,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:31:31,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:31:31,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:31:31,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:31:31,042 INFO L87 Difference]: Start difference. First operand 73292 states and 101711 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 09:31:34,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:31:40,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:31:41,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:31:41,061 INFO L93 Difference]: Finished difference Result 73315 states and 101732 transitions. [2022-12-14 09:31:41,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:31:41,062 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 197 [2022-12-14 09:31:41,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:31:41,285 INFO L225 Difference]: With dead ends: 73315 [2022-12-14 09:31:41,285 INFO L226 Difference]: Without dead ends: 73313 [2022-12-14 09:31:41,319 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 09:31:41,320 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1379 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:31:41,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 7609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 09:31:41,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73313 states. [2022-12-14 09:31:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73313 to 73296. [2022-12-14 09:31:44,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73296 states, 42601 states have (on average 1.2427877279876058) internal successors, (52944), 44502 states have internal predecessors, (52944), 24278 states have call successors, (24278), 6592 states have call predecessors, (24278), 6414 states have return successors, (24492), 23222 states have call predecessors, (24492), 24270 states have call successors, (24492) [2022-12-14 09:31:44,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73296 states to 73296 states and 101714 transitions. [2022-12-14 09:31:44,345 INFO L78 Accepts]: Start accepts. Automaton has 73296 states and 101714 transitions. Word has length 197 [2022-12-14 09:31:44,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:31:44,345 INFO L495 AbstractCegarLoop]: Abstraction has 73296 states and 101714 transitions. [2022-12-14 09:31:44,345 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 09:31:44,345 INFO L276 IsEmpty]: Start isEmpty. Operand 73296 states and 101714 transitions. [2022-12-14 09:31:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-12-14 09:31:44,349 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:31:44,349 INFO L195 NwaCegarLoop]: trace histogram [13, 10, 9, 9, 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] [2022-12-14 09:31:44,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 09:31:44,350 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 09:31:44,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:31:44,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1825579187, now seen corresponding path program 1 times [2022-12-14 09:31:44,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:31:44,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404432696] [2022-12-14 09:31:44,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:31:44,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:31:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:31:44,562 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2022-12-14 09:31:44,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:31:44,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404432696] [2022-12-14 09:31:44,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404432696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:31:44,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:31:44,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:31:44,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811575363] [2022-12-14 09:31:44,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:31:44,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:31:44,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:31:44,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:31:44,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:31:44,564 INFO L87 Difference]: Start difference. First operand 73296 states and 101714 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, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 09:31:48,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:31:53,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:31:54,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:31:54,458 INFO L93 Difference]: Finished difference Result 73379 states and 101807 transitions. [2022-12-14 09:31:54,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:31:54,458 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, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 198 [2022-12-14 09:31:54,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:31:54,668 INFO L225 Difference]: With dead ends: 73379 [2022-12-14 09:31:54,668 INFO L226 Difference]: Without dead ends: 73377 [2022-12-14 09:31:54,696 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 09:31:54,696 INFO L413 NwaCegarLoop]: 2210 mSDtfsCounter, 1595 mSDsluCounter, 6013 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 8223 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:31:54,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 8223 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1211 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 09:31:54,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73377 states. [2022-12-14 09:31:58,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73377 to 73324. [2022-12-14 09:31:58,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73324 states, 42610 states have (on average 1.2427599155127904) internal successors, (52954), 44511 states have internal predecessors, (52954), 24294 states have call successors, (24294), 6596 states have call predecessors, (24294), 6417 states have return successors, (24504), 23237 states have call predecessors, (24504), 24282 states have call successors, (24504) [2022-12-14 09:31:58,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73324 states to 73324 states and 101752 transitions. [2022-12-14 09:31:58,284 INFO L78 Accepts]: Start accepts. Automaton has 73324 states and 101752 transitions. Word has length 198 [2022-12-14 09:31:58,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:31:58,285 INFO L495 AbstractCegarLoop]: Abstraction has 73324 states and 101752 transitions. [2022-12-14 09:31:58,285 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, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 09:31:58,285 INFO L276 IsEmpty]: Start isEmpty. Operand 73324 states and 101752 transitions. [2022-12-14 09:31:58,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-12-14 09:31:58,289 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:31:58,289 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 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, 1, 1, 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 09:31:58,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:31:58,289 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 09:31:58,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:31:58,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1342888326, now seen corresponding path program 1 times [2022-12-14 09:31:58,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:31:58,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543944043] [2022-12-14 09:31:58,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:31:58,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:31:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:31:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-12-14 09:31:58,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:31:58,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543944043] [2022-12-14 09:31:58,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543944043] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:31:58,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:31:58,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:31:58,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103721396] [2022-12-14 09:31:58,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:31:58,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:31:58,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:31:58,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:31:58,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:31:58,410 INFO L87 Difference]: Start difference. First operand 73324 states and 101752 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-14 09:32:02,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:32:07,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:32:07,563 INFO L93 Difference]: Finished difference Result 183741 states and 255067 transitions. [2022-12-14 09:32:07,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:32:07,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 199 [2022-12-14 09:32:07,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:32:07,941 INFO L225 Difference]: With dead ends: 183741 [2022-12-14 09:32:07,941 INFO L226 Difference]: Without dead ends: 110500 [2022-12-14 09:32:08,101 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 09:32:08,102 INFO L413 NwaCegarLoop]: 2504 mSDtfsCounter, 1134 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 4111 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:32:08,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 4111 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 687 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-12-14 09:32:08,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110500 states. [2022-12-14 09:32:13,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110500 to 110196. [2022-12-14 09:32:13,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110196 states, 64310 states have (on average 1.2431348157362774) internal successors, (79946), 67187 states have internal predecessors, (79946), 36126 states have call successors, (36126), 10040 states have call predecessors, (36126), 9757 states have return successors, (36336), 34493 states have call predecessors, (36336), 36114 states have call successors, (36336) [2022-12-14 09:32:13,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110196 states to 110196 states and 152408 transitions. [2022-12-14 09:32:13,685 INFO L78 Accepts]: Start accepts. Automaton has 110196 states and 152408 transitions. Word has length 199 [2022-12-14 09:32:13,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:32:13,685 INFO L495 AbstractCegarLoop]: Abstraction has 110196 states and 152408 transitions. [2022-12-14 09:32:13,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-14 09:32:13,686 INFO L276 IsEmpty]: Start isEmpty. Operand 110196 states and 152408 transitions. [2022-12-14 09:32:13,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-12-14 09:32:13,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:32:13,688 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 09:32:13,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:32:13,688 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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 09:32:13,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:32:13,689 INFO L85 PathProgramCache]: Analyzing trace with hash 207605921, now seen corresponding path program 1 times [2022-12-14 09:32:13,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:32:13,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857832001] [2022-12-14 09:32:13,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:32:13,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:32:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:32:13,877 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 09:32:13,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:32:13,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857832001] [2022-12-14 09:32:13,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857832001] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:32:13,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:32:13,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:32:13,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054497325] [2022-12-14 09:32:13,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:32:13,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:32:13,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:32:13,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:32:13,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:32:13,879 INFO L87 Difference]: Start difference. First operand 110196 states and 152408 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 09:32:17,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:32:23,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:32:23,721 INFO L93 Difference]: Finished difference Result 110219 states and 152429 transitions. [2022-12-14 09:32:23,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:32:23,723 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 09:32:23,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:32:24,064 INFO L225 Difference]: With dead ends: 110219 [2022-12-14 09:32:24,064 INFO L226 Difference]: Without dead ends: 110217 [2022-12-14 09:32:24,105 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 09:32:24,106 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1379 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:32:24,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 7609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-12-14 09:32:24,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110217 states. [2022-12-14 09:32:28,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110217 to 110200. [2022-12-14 09:32:28,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110200 states, 64313 states have (on average 1.2431234742587036) internal successors, (79949), 67190 states have internal predecessors, (79949), 36126 states have call successors, (36126), 10041 states have call predecessors, (36126), 9758 states have return successors, (36336), 34493 states have call predecessors, (36336), 36114 states have call successors, (36336) [2022-12-14 09:32:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110200 states to 110200 states and 152411 transitions. [2022-12-14 09:32:29,189 INFO L78 Accepts]: Start accepts. Automaton has 110200 states and 152411 transitions. Word has length 206 [2022-12-14 09:32:29,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:32:29,189 INFO L495 AbstractCegarLoop]: Abstraction has 110200 states and 152411 transitions. [2022-12-14 09:32:29,189 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 09:32:29,189 INFO L276 IsEmpty]: Start isEmpty. Operand 110200 states and 152411 transitions. [2022-12-14 09:32:29,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-12-14 09:32:29,192 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:32:29,192 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 11, 11, 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] [2022-12-14 09:32:29,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 09:32:29,192 INFO L420 AbstractCegarLoop]: === Iteration 20 === 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 09:32:29,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:32:29,192 INFO L85 PathProgramCache]: Analyzing trace with hash 841805203, now seen corresponding path program 1 times [2022-12-14 09:32:29,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:32:29,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065229198] [2022-12-14 09:32:29,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:32:29,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:32:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:32:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2022-12-14 09:32:29,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:32:29,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065229198] [2022-12-14 09:32:29,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065229198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:32:29,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:32:29,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:32:29,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726347354] [2022-12-14 09:32:29,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:32:29,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:32:29,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:32:29,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:32:29,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:32:29,384 INFO L87 Difference]: Start difference. First operand 110200 states and 152411 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, (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 09:32:33,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:32:39,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:32:39,009 INFO L93 Difference]: Finished difference Result 110223 states and 152432 transitions. [2022-12-14 09:32:39,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:32:39,011 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, (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 208 [2022-12-14 09:32:39,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:32:39,338 INFO L225 Difference]: With dead ends: 110223 [2022-12-14 09:32:39,338 INFO L226 Difference]: Without dead ends: 110219 [2022-12-14 09:32:39,373 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 09:32:39,374 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 1380 mSDsluCounter, 5606 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 7609 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:32:39,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 7609 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1025 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 09:32:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110219 states. [2022-12-14 09:32:43,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110219 to 110202. [2022-12-14 09:32:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110202 states, 64315 states have (on average 1.2431003653891006) internal successors, (79950), 67191 states have internal predecessors, (79950), 36126 states have call successors, (36126), 10042 states have call predecessors, (36126), 9758 states have return successors, (36336), 34493 states have call predecessors, (36336), 36114 states have call successors, (36336) [2022-12-14 09:32:44,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110202 states to 110202 states and 152412 transitions. [2022-12-14 09:32:44,382 INFO L78 Accepts]: Start accepts. Automaton has 110202 states and 152412 transitions. Word has length 208 [2022-12-14 09:32:44,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:32:44,382 INFO L495 AbstractCegarLoop]: Abstraction has 110202 states and 152412 transitions. [2022-12-14 09:32:44,383 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, (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 09:32:44,383 INFO L276 IsEmpty]: Start isEmpty. Operand 110202 states and 152412 transitions. [2022-12-14 09:32:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-12-14 09:32:44,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:32:44,385 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:32:44,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 09:32:44,386 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:32:44,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:32:44,386 INFO L85 PathProgramCache]: Analyzing trace with hash -563905594, now seen corresponding path program 1 times [2022-12-14 09:32:44,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:32:44,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890513405] [2022-12-14 09:32:44,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:32:44,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:32:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:32:44,689 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2022-12-14 09:32:44,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:32:44,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890513405] [2022-12-14 09:32:44,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890513405] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:32:44,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:32:44,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:32:44,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220158663] [2022-12-14 09:32:44,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:32:44,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:32:44,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:32:44,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:32:44,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:32:44,691 INFO L87 Difference]: Start difference. First operand 110202 states and 152412 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 09:32:48,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:32:54,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:32:54,835 INFO L93 Difference]: Finished difference Result 112724 states and 154957 transitions. [2022-12-14 09:32:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:32:54,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 208 [2022-12-14 09:32:54,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:32:55,199 INFO L225 Difference]: With dead ends: 112724 [2022-12-14 09:32:55,200 INFO L226 Difference]: Without dead ends: 112722 [2022-12-14 09:32:55,237 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 09:32:55,238 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 102 mSDsluCounter, 4933 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 6600 SdHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:32:55,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 6600 Invalid, 1020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1018 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 09:32:55,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112722 states. [2022-12-14 09:33:00,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112722 to 112722. [2022-12-14 09:33:00,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112722 states, 65723 states have (on average 1.238653135127733) internal successors, (81408), 68599 states have internal predecessors, (81408), 36624 states have call successors, (36624), 10656 states have call predecessors, (36624), 10372 states have return successors, (36834), 34991 states have call predecessors, (36834), 36612 states have call successors, (36834) [2022-12-14 09:33:00,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112722 states to 112722 states and 154866 transitions. [2022-12-14 09:33:00,628 INFO L78 Accepts]: Start accepts. Automaton has 112722 states and 154866 transitions. Word has length 208 [2022-12-14 09:33:00,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:33:00,628 INFO L495 AbstractCegarLoop]: Abstraction has 112722 states and 154866 transitions. [2022-12-14 09:33:00,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 09:33:00,628 INFO L276 IsEmpty]: Start isEmpty. Operand 112722 states and 154866 transitions. [2022-12-14 09:33:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-12-14 09:33:00,631 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:33:00,631 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:33:00,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 09:33:00,631 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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 09:33:00,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:33:00,631 INFO L85 PathProgramCache]: Analyzing trace with hash 616984605, now seen corresponding path program 1 times [2022-12-14 09:33:00,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:33:00,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707001408] [2022-12-14 09:33:00,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:33:00,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:33:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:33:00,828 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2022-12-14 09:33:00,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:33:00,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707001408] [2022-12-14 09:33:00,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707001408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:33:00,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:33:00,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:33:00,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328432797] [2022-12-14 09:33:00,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:33:00,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:33:00,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:33:00,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:33:00,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:33:00,829 INFO L87 Difference]: Start difference. First operand 112722 states and 154866 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 09:33:04,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:33:15,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:33:15,030 INFO L93 Difference]: Finished difference Result 199069 states and 275100 transitions. [2022-12-14 09:33:15,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:33:15,031 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 217 [2022-12-14 09:33:15,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:33:15,713 INFO L225 Difference]: With dead ends: 199069 [2022-12-14 09:33:15,713 INFO L226 Difference]: Without dead ends: 198695 [2022-12-14 09:33:15,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:33:15,781 INFO L413 NwaCegarLoop]: 2204 mSDtfsCounter, 1612 mSDsluCounter, 5978 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 8182 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:33:15,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 8182 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1194 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 09:33:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198695 states. [2022-12-14 09:33:23,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198695 to 198552. [2022-12-14 09:33:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198552 states, 116097 states have (on average 1.240824482975443) internal successors, (144056), 121214 states have internal predecessors, (144056), 64878 states have call successors, (64878), 18414 states have call predecessors, (64878), 17574 states have return successors, (65296), 61344 states have call predecessors, (65296), 64862 states have call successors, (65296) [2022-12-14 09:33:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198552 states to 198552 states and 274230 transitions. [2022-12-14 09:33:24,485 INFO L78 Accepts]: Start accepts. Automaton has 198552 states and 274230 transitions. Word has length 217 [2022-12-14 09:33:24,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:33:24,485 INFO L495 AbstractCegarLoop]: Abstraction has 198552 states and 274230 transitions. [2022-12-14 09:33:24,485 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 09:33:24,485 INFO L276 IsEmpty]: Start isEmpty. Operand 198552 states and 274230 transitions. [2022-12-14 09:33:24,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-12-14 09:33:24,490 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:33:24,491 INFO L195 NwaCegarLoop]: trace histogram [17, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:33:24,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 09:33:24,491 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 09:33:24,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:33:24,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1504215499, now seen corresponding path program 1 times [2022-12-14 09:33:24,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:33:24,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409893796] [2022-12-14 09:33:24,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:33:24,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:33:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:33:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2022-12-14 09:33:24,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:33:24,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409893796] [2022-12-14 09:33:24,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409893796] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:33:24,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:33:24,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:33:24,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878301675] [2022-12-14 09:33:24,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:33:24,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:33:24,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:33:24,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:33:24,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:33:24,905 INFO L87 Difference]: Start difference. First operand 198552 states and 274230 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:33:28,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:33:38,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:33:38,196 INFO L93 Difference]: Finished difference Result 198905 states and 274582 transitions. [2022-12-14 09:33:38,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:33:38,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 261 [2022-12-14 09:33:38,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:33:38,951 INFO L225 Difference]: With dead ends: 198905 [2022-12-14 09:33:38,951 INFO L226 Difference]: Without dead ends: 198903 [2022-12-14 09:33:39,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 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 09:33:39,016 INFO L413 NwaCegarLoop]: 2231 mSDtfsCounter, 1575 mSDsluCounter, 6043 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 8274 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:33:39,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 8274 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1192 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 09:33:39,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198903 states. [2022-12-14 09:33:46,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198903 to 198760. [2022-12-14 09:33:46,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198760 states, 116253 states have (on average 1.2396411275407946) internal successors, (144112), 121370 states have internal predecessors, (144112), 64878 states have call successors, (64878), 18466 states have call predecessors, (64878), 17626 states have return successors, (65296), 61344 states have call predecessors, (65296), 64862 states have call successors, (65296) [2022-12-14 09:33:47,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198760 states to 198760 states and 274286 transitions. [2022-12-14 09:33:47,567 INFO L78 Accepts]: Start accepts. Automaton has 198760 states and 274286 transitions. Word has length 261 [2022-12-14 09:33:47,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:33:47,568 INFO L495 AbstractCegarLoop]: Abstraction has 198760 states and 274286 transitions. [2022-12-14 09:33:47,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:33:47,568 INFO L276 IsEmpty]: Start isEmpty. Operand 198760 states and 274286 transitions. [2022-12-14 09:33:47,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-12-14 09:33:47,575 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:33:47,575 INFO L195 NwaCegarLoop]: trace histogram [17, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 09:33:47,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 09:33:47,575 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:33:47,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:33:47,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1852653767, now seen corresponding path program 1 times [2022-12-14 09:33:47,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:33:47,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145749161] [2022-12-14 09:33:47,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:33:47,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:33:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:33:47,863 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2022-12-14 09:33:47,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:33:47,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145749161] [2022-12-14 09:33:47,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145749161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:33:47,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:33:47,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:33:47,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839951502] [2022-12-14 09:33:47,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:33:47,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:33:47,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:33:47,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:33:47,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:33:47,865 INFO L87 Difference]: Start difference. First operand 198760 states and 274286 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 09:33:52,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:33:58,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:34:01,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:34:01,395 INFO L93 Difference]: Finished difference Result 201232 states and 276386 transitions. [2022-12-14 09:34:01,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:34:01,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 280 [2022-12-14 09:34:01,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:34:02,104 INFO L225 Difference]: With dead ends: 201232 [2022-12-14 09:34:02,104 INFO L226 Difference]: Without dead ends: 201230 [2022-12-14 09:34:02,177 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 09:34:02,177 INFO L413 NwaCegarLoop]: 1651 mSDtfsCounter, 53 mSDsluCounter, 4908 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 6559 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:34:02,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 6559 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1020 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 09:34:02,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201230 states. [2022-12-14 09:34:10,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201230 to 201230. [2022-12-14 09:34:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201230 states, 117552 states have (on average 1.2356999455560091) internal successors, (145259), 122668 states have internal predecessors, (145259), 65278 states have call successors, (65278), 19238 states have call predecessors, (65278), 18398 states have return successors, (65696), 61744 states have call predecessors, (65696), 65262 states have call successors, (65696) [2022-12-14 09:34:11,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201230 states to 201230 states and 276233 transitions. [2022-12-14 09:34:11,483 INFO L78 Accepts]: Start accepts. Automaton has 201230 states and 276233 transitions. Word has length 280 [2022-12-14 09:34:11,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:34:11,484 INFO L495 AbstractCegarLoop]: Abstraction has 201230 states and 276233 transitions. [2022-12-14 09:34:11,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (38), 3 states have call predecessors, (38), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 09:34:11,484 INFO L276 IsEmpty]: Start isEmpty. Operand 201230 states and 276233 transitions. [2022-12-14 09:34:11,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-12-14 09:34:11,514 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:34:11,514 INFO L195 NwaCegarLoop]: trace histogram [20, 13, 13, 11, 11, 11, 11, 11, 11, 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, 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] [2022-12-14 09:34:11,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 09:34:11,514 INFO L420 AbstractCegarLoop]: === Iteration 25 === 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 09:34:11,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:34:11,515 INFO L85 PathProgramCache]: Analyzing trace with hash -796110962, now seen corresponding path program 1 times [2022-12-14 09:34:11,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:34:11,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189854744] [2022-12-14 09:34:11,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:11,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:34:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2022-12-14 09:34:12,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:34:12,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189854744] [2022-12-14 09:34:12,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189854744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:34:12,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:34:12,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:34:12,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068254639] [2022-12-14 09:34:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:34:12,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:34:12,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:34:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:34:12,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:34:12,384 INFO L87 Difference]: Start difference. First operand 201230 states and 276233 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, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-12-14 09:34:16,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:34:24,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:34:24,208 INFO L93 Difference]: Finished difference Result 201248 states and 276250 transitions. [2022-12-14 09:34:24,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:34:24,209 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, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 369 [2022-12-14 09:34:24,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:34:24,986 INFO L225 Difference]: With dead ends: 201248 [2022-12-14 09:34:24,986 INFO L226 Difference]: Without dead ends: 201246 [2022-12-14 09:34:25,052 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 09:34:25,052 INFO L413 NwaCegarLoop]: 1641 mSDtfsCounter, 1775 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:34:25,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 4909 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 770 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 09:34:25,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201246 states. [2022-12-14 09:34:33,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201246 to 201246. [2022-12-14 09:34:33,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201246 states, 117564 states have (on average 1.2356758871763465) internal successors, (145271), 122680 states have internal predecessors, (145271), 65278 states have call successors, (65278), 19242 states have call predecessors, (65278), 18402 states have return successors, (65696), 61744 states have call predecessors, (65696), 65262 states have call successors, (65696) [2022-12-14 09:34:34,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201246 states to 201246 states and 276245 transitions. [2022-12-14 09:34:34,186 INFO L78 Accepts]: Start accepts. Automaton has 201246 states and 276245 transitions. Word has length 369 [2022-12-14 09:34:34,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:34:34,186 INFO L495 AbstractCegarLoop]: Abstraction has 201246 states and 276245 transitions. [2022-12-14 09:34:34,186 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, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-12-14 09:34:34,187 INFO L276 IsEmpty]: Start isEmpty. Operand 201246 states and 276245 transitions. [2022-12-14 09:34:34,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-14 09:34:34,217 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:34:34,217 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:34:34,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 09:34:34,217 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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 09:34:34,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:34:34,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1052778710, now seen corresponding path program 1 times [2022-12-14 09:34:34,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:34:34,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901573965] [2022-12-14 09:34:34,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:34,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:34:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:34,582 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2022-12-14 09:34:34,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:34:34,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901573965] [2022-12-14 09:34:34,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901573965] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:34:34,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973417925] [2022-12-14 09:34:34,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:34:34,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:34:34,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:34:34,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:34:34,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:34:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:34:35,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 3841 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 09:34:35,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:34:36,243 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked. [2022-12-14 09:34:36,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:34:36,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973417925] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:34:36,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:34:36,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-12-14 09:34:36,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083365263] [2022-12-14 09:34:36,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:34:36,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:34:36,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:34:36,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:34:36,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:34:36,245 INFO L87 Difference]: Start difference. First operand 201246 states and 276245 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-12-14 09:34:39,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:34:42,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:34:51,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:34:54,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:34:54,933 INFO L93 Difference]: Finished difference Result 470970 states and 648743 transitions. [2022-12-14 09:34:54,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:34:54,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 373 [2022-12-14 09:34:54,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:34:55,980 INFO L225 Difference]: With dead ends: 470970 [2022-12-14 09:34:55,980 INFO L226 Difference]: Without dead ends: 288739 [2022-12-14 09:34:56,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:34:56,421 INFO L413 NwaCegarLoop]: 2123 mSDtfsCounter, 1648 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 3717 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:34:56,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 3717 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 512 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 09:34:56,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288739 states. [2022-12-14 09:35:08,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288739 to 288507. [2022-12-14 09:35:08,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288507 states, 168631 states have (on average 1.237441514312315) internal successors, (208671), 176142 states have internal predecessors, (208671), 93872 states have call successors, (93872), 27250 states have call predecessors, (93872), 26002 states have return successors, (94514), 88632 states have call predecessors, (94514), 93856 states have call successors, (94514) [2022-12-14 09:35:10,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288507 states to 288507 states and 397057 transitions. [2022-12-14 09:35:10,123 INFO L78 Accepts]: Start accepts. Automaton has 288507 states and 397057 transitions. Word has length 373 [2022-12-14 09:35:10,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:10,124 INFO L495 AbstractCegarLoop]: Abstraction has 288507 states and 397057 transitions. [2022-12-14 09:35:10,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-12-14 09:35:10,124 INFO L276 IsEmpty]: Start isEmpty. Operand 288507 states and 397057 transitions. [2022-12-14 09:35:10,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-12-14 09:35:10,153 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:10,153 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 11, 11, 11, 11, 11, 11, 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, 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] [2022-12-14 09:35:10,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:35:10,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-14 09:35:10,356 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 09:35:10,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:10,357 INFO L85 PathProgramCache]: Analyzing trace with hash 480749216, now seen corresponding path program 1 times [2022-12-14 09:35:10,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:10,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746816118] [2022-12-14 09:35:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:10,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:10,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1041 trivial. 0 not checked. [2022-12-14 09:35:10,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:10,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746816118] [2022-12-14 09:35:10,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746816118] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:10,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:10,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:35:10,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315350847] [2022-12-14 09:35:10,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:10,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:35:10,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:10,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:35:10,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:35:10,861 INFO L87 Difference]: Start difference. First operand 288507 states and 397057 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 09:35:14,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:35:25,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:25,941 INFO L93 Difference]: Finished difference Result 288525 states and 397074 transitions. [2022-12-14 09:35:25,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:35:25,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 377 [2022-12-14 09:35:25,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:26,937 INFO L225 Difference]: With dead ends: 288525 [2022-12-14 09:35:26,937 INFO L226 Difference]: Without dead ends: 288523 [2022-12-14 09:35:27,046 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 09:35:27,046 INFO L413 NwaCegarLoop]: 1644 mSDtfsCounter, 1769 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 4912 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:27,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 4912 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 770 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-12-14 09:35:27,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288523 states. [2022-12-14 09:35:40,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288523 to 288523. [2022-12-14 09:35:40,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288523 states, 168643 states have (on average 1.2374246188694462) internal successors, (208683), 176154 states have internal predecessors, (208683), 93872 states have call successors, (93872), 27254 states have call predecessors, (93872), 26006 states have return successors, (94514), 88632 states have call predecessors, (94514), 93856 states have call successors, (94514) [2022-12-14 09:35:41,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288523 states to 288523 states and 397069 transitions. [2022-12-14 09:35:41,542 INFO L78 Accepts]: Start accepts. Automaton has 288523 states and 397069 transitions. Word has length 377 [2022-12-14 09:35:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:41,543 INFO L495 AbstractCegarLoop]: Abstraction has 288523 states and 397069 transitions. [2022-12-14 09:35:41,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 09:35:41,543 INFO L276 IsEmpty]: Start isEmpty. Operand 288523 states and 397069 transitions. [2022-12-14 09:35:41,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-12-14 09:35:41,573 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:41,573 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:41,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 09:35:41,574 INFO L420 AbstractCegarLoop]: === Iteration 28 === 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 09:35:41,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:41,574 INFO L85 PathProgramCache]: Analyzing trace with hash -821652869, now seen corresponding path program 1 times [2022-12-14 09:35:41,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:41,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266449775] [2022-12-14 09:35:41,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:41,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2022-12-14 09:35:42,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:42,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266449775] [2022-12-14 09:35:42,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266449775] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:42,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:42,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:35:42,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123906626] [2022-12-14 09:35:42,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:42,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:35:42,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:42,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:35:42,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:35:42,079 INFO L87 Difference]: Start difference. First operand 288523 states and 397069 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-12-14 09:35:45,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:35:56,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:35:59,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:59,731 INFO L93 Difference]: Finished difference Result 288541 states and 397086 transitions. [2022-12-14 09:35:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:35:59,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 382 [2022-12-14 09:35:59,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:36:00,710 INFO L225 Difference]: With dead ends: 288541 [2022-12-14 09:36:00,710 INFO L226 Difference]: Without dead ends: 288539 [2022-12-14 09:36:00,803 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 09:36:00,803 INFO L413 NwaCegarLoop]: 1644 mSDtfsCounter, 1769 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 4912 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:36:00,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 4912 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 770 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-12-14 09:36:01,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288539 states. [2022-12-14 09:36:14,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288539 to 288539. [2022-12-14 09:36:15,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288539 states, 168655 states have (on average 1.237407725830838) internal successors, (208695), 176166 states have internal predecessors, (208695), 93872 states have call successors, (93872), 27258 states have call predecessors, (93872), 26010 states have return successors, (94514), 88632 states have call predecessors, (94514), 93856 states have call successors, (94514) [2022-12-14 09:36:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288539 states to 288539 states and 397081 transitions. [2022-12-14 09:36:16,381 INFO L78 Accepts]: Start accepts. Automaton has 288539 states and 397081 transitions. Word has length 382 [2022-12-14 09:36:16,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:36:16,382 INFO L495 AbstractCegarLoop]: Abstraction has 288539 states and 397081 transitions. [2022-12-14 09:36:16,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-12-14 09:36:16,382 INFO L276 IsEmpty]: Start isEmpty. Operand 288539 states and 397081 transitions. [2022-12-14 09:36:16,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2022-12-14 09:36:16,414 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:36:16,414 INFO L195 NwaCegarLoop]: trace histogram [20, 13, 13, 11, 11, 11, 11, 11, 11, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:36:16,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 09:36:16,415 INFO L420 AbstractCegarLoop]: === Iteration 29 === 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 09:36:16,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:36:16,415 INFO L85 PathProgramCache]: Analyzing trace with hash 68106989, now seen corresponding path program 1 times [2022-12-14 09:36:16,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:36:16,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756333025] [2022-12-14 09:36:16,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:36:16,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:36:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:36:16,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1025 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2022-12-14 09:36:16,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:36:16,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756333025] [2022-12-14 09:36:16,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756333025] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:36:16,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:36:16,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:36:16,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013453424] [2022-12-14 09:36:16,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:36:16,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:36:16,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:36:16,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:36:16,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:36:16,868 INFO L87 Difference]: Start difference. First operand 288539 states and 397081 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 09:36:20,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:36:34,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:36:34,068 INFO L93 Difference]: Finished difference Result 288557 states and 397098 transitions. [2022-12-14 09:36:34,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:36:34,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 384 [2022-12-14 09:36:34,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:36:35,092 INFO L225 Difference]: With dead ends: 288557 [2022-12-14 09:36:35,092 INFO L226 Difference]: Without dead ends: 288555 [2022-12-14 09:36:35,197 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 09:36:35,198 INFO L413 NwaCegarLoop]: 1644 mSDtfsCounter, 1770 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 4912 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:36:35,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1779 Valid, 4912 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 770 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-12-14 09:36:35,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288555 states. [2022-12-14 09:36:50,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288555 to 288555. [2022-12-14 09:36:50,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288555 states, 168667 states have (on average 1.237390835195978) internal successors, (208707), 176178 states have internal predecessors, (208707), 93872 states have call successors, (93872), 27262 states have call predecessors, (93872), 26014 states have return successors, (94514), 88632 states have call predecessors, (94514), 93856 states have call successors, (94514) [2022-12-14 09:36:51,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288555 states to 288555 states and 397093 transitions. [2022-12-14 09:36:52,000 INFO L78 Accepts]: Start accepts. Automaton has 288555 states and 397093 transitions. Word has length 384 [2022-12-14 09:36:52,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:36:52,000 INFO L495 AbstractCegarLoop]: Abstraction has 288555 states and 397093 transitions. [2022-12-14 09:36:52,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 09:36:52,001 INFO L276 IsEmpty]: Start isEmpty. Operand 288555 states and 397093 transitions. [2022-12-14 09:36:52,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-12-14 09:36:52,033 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:36:52,033 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 11, 11, 11, 11, 11, 11, 5, 4, 4, 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, 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] [2022-12-14 09:36:52,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 09:36:52,033 INFO L420 AbstractCegarLoop]: === Iteration 30 === 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 09:36:52,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:36:52,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1779966629, now seen corresponding path program 1 times [2022-12-14 09:36:52,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:36:52,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979895809] [2022-12-14 09:36:52,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:36:52,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:36:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:36:52,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1073 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2022-12-14 09:36:52,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:36:52,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979895809] [2022-12-14 09:36:52,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979895809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:36:52,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:36:52,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:36:52,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913323017] [2022-12-14 09:36:52,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:36:52,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:36:52,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:36:52,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:36:52,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:36:52,490 INFO L87 Difference]: Start difference. First operand 288555 states and 397093 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 09:36:56,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:37:08,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:37:12,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:37:12,219 INFO L93 Difference]: Finished difference Result 288573 states and 397110 transitions. [2022-12-14 09:37:12,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:37:12,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 392 [2022-12-14 09:37:12,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:37:13,234 INFO L225 Difference]: With dead ends: 288573 [2022-12-14 09:37:13,235 INFO L226 Difference]: Without dead ends: 288571 [2022-12-14 09:37:13,338 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 09:37:13,338 INFO L413 NwaCegarLoop]: 1644 mSDtfsCounter, 1769 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 4912 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:37:13,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 4912 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 770 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 09:37:13,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288571 states. [2022-12-14 09:37:29,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288571 to 288571. [2022-12-14 09:37:29,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288571 states, 168679 states have (on average 1.2373739469643523) internal successors, (208719), 176190 states have internal predecessors, (208719), 93872 states have call successors, (93872), 27266 states have call predecessors, (93872), 26018 states have return successors, (94514), 88632 states have call predecessors, (94514), 93856 states have call successors, (94514) [2022-12-14 09:37:31,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288571 states to 288571 states and 397105 transitions. [2022-12-14 09:37:31,213 INFO L78 Accepts]: Start accepts. Automaton has 288571 states and 397105 transitions. Word has length 392 [2022-12-14 09:37:31,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:37:31,213 INFO L495 AbstractCegarLoop]: Abstraction has 288571 states and 397105 transitions. [2022-12-14 09:37:31,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2022-12-14 09:37:31,214 INFO L276 IsEmpty]: Start isEmpty. Operand 288571 states and 397105 transitions. [2022-12-14 09:37:31,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-12-14 09:37:31,246 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:37:31,246 INFO L195 NwaCegarLoop]: trace histogram [20, 12, 12, 11, 11, 11, 11, 11, 11, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:37:31,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-14 09:37:31,246 INFO L420 AbstractCegarLoop]: === Iteration 31 === 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 09:37:31,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:37:31,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1730250661, now seen corresponding path program 1 times [2022-12-14 09:37:31,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:37:31,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455297240] [2022-12-14 09:37:31,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:37:31,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:37:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:37:31,571 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2022-12-14 09:37:31,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:37:31,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455297240] [2022-12-14 09:37:31,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455297240] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:37:31,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:37:31,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:37:31,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286119561] [2022-12-14 09:37:31,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:37:31,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:37:31,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:37:31,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:37:31,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:37:31,573 INFO L87 Difference]: Start difference. First operand 288571 states and 397105 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-12-14 09:37:35,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:37:55,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:37:55,474 INFO L93 Difference]: Finished difference Result 627123 states and 864147 transitions. [2022-12-14 09:37:55,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:37:55,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 389 [2022-12-14 09:37:55,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:37:56,929 INFO L225 Difference]: With dead ends: 627123 [2022-12-14 09:37:56,930 INFO L226 Difference]: Without dead ends: 357567 [2022-12-14 09:37:57,613 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 09:37:57,614 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 1481 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:37:57,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 3853 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:37:57,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357567 states. [2022-12-14 09:38:18,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357567 to 357239. [2022-12-14 09:38:18,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357239 states, 208979 states have (on average 1.2375453992984942) internal successors, (258621), 218464 states have internal predecessors, (258621), 115798 states have call successors, (115798), 34090 states have call predecessors, (115798), 32460 states have return successors, (116782), 109000 states have call predecessors, (116782), 115782 states have call successors, (116782) [2022-12-14 09:38:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357239 states to 357239 states and 491201 transitions. [2022-12-14 09:38:20,022 INFO L78 Accepts]: Start accepts. Automaton has 357239 states and 491201 transitions. Word has length 389 [2022-12-14 09:38:20,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:38:20,022 INFO L495 AbstractCegarLoop]: Abstraction has 357239 states and 491201 transitions. [2022-12-14 09:38:20,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-12-14 09:38:20,023 INFO L276 IsEmpty]: Start isEmpty. Operand 357239 states and 491201 transitions. [2022-12-14 09:38:20,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-12-14 09:38:20,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:38:20,056 INFO L195 NwaCegarLoop]: trace histogram [21, 13, 13, 11, 11, 11, 11, 11, 11, 5, 5, 5, 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, 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] [2022-12-14 09:38:20,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-14 09:38:20,056 INFO L420 AbstractCegarLoop]: === Iteration 32 === 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 09:38:20,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:38:20,057 INFO L85 PathProgramCache]: Analyzing trace with hash -955216259, now seen corresponding path program 1 times [2022-12-14 09:38:20,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:38:20,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248938628] [2022-12-14 09:38:20,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:38:20,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:38:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:38:20,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 32 proven. 10 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2022-12-14 09:38:20,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:38:20,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248938628] [2022-12-14 09:38:20,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248938628] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:38:20,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6732446] [2022-12-14 09:38:20,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:38:20,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:38:20,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:38:20,769 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:38:20,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24a79d86-23b1-4b60-82c0-d7a739f9d3f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:38:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:38:21,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 3899 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 09:38:21,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:38:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 665 trivial. 0 not checked. [2022-12-14 09:38:22,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:38:22,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6732446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:38:22,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:38:22,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-12-14 09:38:22,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459285871] [2022-12-14 09:38:22,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:38:22,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:38:22,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:38:22,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:38:22,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:38:22,448 INFO L87 Difference]: Start difference. First operand 357239 states and 491201 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54)