./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-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/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-micrel-ksz884x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/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 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 --- 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 09:02:58,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:02:58,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:02:58,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:02:58,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:02:58,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:02:58,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:02:58,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:02:58,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:02:58,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:02:58,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:02:58,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:02:58,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:02:58,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:02:58,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:02:58,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:02:58,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:02:58,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:02:58,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:02:58,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:02:58,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:02:58,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:02:58,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:02:58,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:02:58,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:02:58,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:02:58,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:02:58,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:02:58,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:02:58,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:02:58,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:02:58,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:02:58,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:02:58,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:02:58,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:02:58,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:02:58,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:02:58,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:02:58,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:02:58,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:02:58,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:02:58,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:02:58,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:02:58,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:02:58,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:02:58,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:02:58,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:02:58,374 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:02:58,375 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:02:58,375 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:02:58,375 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:02:58,375 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:02:58,375 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:02:58,375 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:02:58,375 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:02:58,375 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:02:58,375 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:02:58,375 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:02:58,376 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:02:58,376 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:02:58,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:02:58,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:02:58,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:02:58,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:02:58,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:02:58,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:02:58,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:02:58,377 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:02:58,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:02:58,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:02:58,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:02:58,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:02:58,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:02:58,377 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:02:58,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:02:58,378 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:02:58,378 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:02:58,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:02:58,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:02:58,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:02:58,378 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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2022-12-14 09:02:58,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:02:58,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:02:58,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:02:58,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:02:58,565 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:02:58,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-12-14 09:03:01,234 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:03:01,604 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:03:01,604 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-12-14 09:03:01,632 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/bin/utaipan-gh47qXpMRh/data/5ddc76592/0d3f8e1d3ac044ad9ed0068e067d9ac1/FLAGa117e08e7 [2022-12-14 09:03:01,642 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/bin/utaipan-gh47qXpMRh/data/5ddc76592/0d3f8e1d3ac044ad9ed0068e067d9ac1 [2022-12-14 09:03:01,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:03:01,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:03:01,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:03:01,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:03:01,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:03:01,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:03:01" (1/1) ... [2022-12-14 09:03:01,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6089d61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:01, skipping insertion in model container [2022-12-14 09:03:01,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:03:01" (1/1) ... [2022-12-14 09:03:01,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:03:01,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:03:02,377 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 09:03:02,386 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 09:03:02,395 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 09:03:02,403 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 09:03:02,453 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 09:03:02,501 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 09:03:02,548 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:03:02,604 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 09:03:02,608 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 09:03:02,608 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 09:03:02,615 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 09:03:02,621 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 09:03:02,646 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 09:03:02,652 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 09:03:02,653 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 09:03:02,658 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 09:03:02,674 WARN L623 FunctionHandler]: Unknown extern function __alloc_skb [2022-12-14 09:03:02,725 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 09:03:02,790 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 09:03:02,790 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 09:03:02,800 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 09:03:02,800 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:02,826 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 09:03:02,895 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 09:03:02,900 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 09:03:02,904 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 09:03:02,937 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-12-14 09:03:02,981 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 09:03:03,008 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 09:03:03,029 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 09:03:03,457 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,457 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,461 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,462 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,481 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,481 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,481 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,481 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,482 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,482 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,483 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,483 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,484 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,484 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,484 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,485 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,486 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,570 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 09:03:03,570 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 09:03:03,617 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:03,635 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:03,763 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 09:03:03,763 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 09:03:03,794 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 09:03:03,805 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 09:03:03,811 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 09:03:03,812 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 09:03:03,831 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:03:03,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:03,851 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:03,852 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:03,897 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:03:03,904 WARN L623 FunctionHandler]: Unknown extern function skb_copy_and_csum_dev [2022-12-14 09:03:03,922 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 09:03:03,922 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 09:03:03,923 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 09:03:03,964 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:03,965 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:03,981 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 09:03:03,981 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 09:03:03,981 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 09:03:03,982 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 09:03:03,993 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 09:03:03,993 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 09:03:03,998 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 09:03:03,998 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 09:03:03,999 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:03:04,048 WARN L623 FunctionHandler]: Unknown extern function down_interruptible [2022-12-14 09:03:04,049 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 09:03:04,049 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-14 09:03:04,065 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:04,065 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 09:03:04,065 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:04,071 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:04,072 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 09:03:04,072 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:04,077 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:04,077 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 09:03:04,077 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:04,082 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 09:03:04,087 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:03:04,088 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:03:04,089 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:03:04,100 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:04,101 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:04,147 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:04,149 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:04,172 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:04,173 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:04,174 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 09:03:04,174 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 09:03:04,175 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 09:03:04,175 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 09:03:04,176 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 09:03:04,176 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 09:03:04,177 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 09:03:04,178 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 09:03:04,179 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 09:03:04,185 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:04,186 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:04,197 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 09:03:04,222 WARN L623 FunctionHandler]: Unknown extern function hex_to_bin [2022-12-14 09:03:04,236 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 09:03:04,237 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 09:03:04,238 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 09:03:04,239 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:04,240 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 09:03:04,241 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:03:04,243 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 09:03:04,244 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:03:04,244 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 09:03:04,245 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:03:04,245 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:03:04,247 WARN L623 FunctionHandler]: Unknown extern function pci_dev_get [2022-12-14 09:03:04,248 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:04,248 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 09:03:04,248 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:04,248 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 09:03:04,254 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 09:03:04,255 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 09:03:04,255 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:04,255 WARN L623 FunctionHandler]: Unknown extern function pci_dev_put [2022-12-14 09:03:04,255 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:04,260 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 09:03:04,260 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 09:03:04,261 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 09:03:04,266 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:03:04,267 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 09:03:04,267 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 09:03:04,267 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 09:03:04,267 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 09:03:04,651 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 09:03:04,653 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 09:03:04,656 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 09:03:04,656 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 09:03:04,663 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 09:03:04,664 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 09:03:04,668 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 09:03:04,668 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 09:03:04,670 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 09:03:04,670 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 09:03:04,671 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 09:03:04,671 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 09:03:04,671 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 09:03:04,672 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 09:03:04,672 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 09:03:04,672 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 09:03:04,717 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 09:03:04,718 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:03:04,727 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 09:03:05,226 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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2022-12-14 09:03:05,229 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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2022-12-14 09:03:05,229 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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2022-12-14 09:03:05,230 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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2022-12-14 09:03:05,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:03:05,305 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:03:05,369 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 09:03:05,369 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 09:03:05,369 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 09:03:05,370 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 09:03:05,370 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 09:03:05,371 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 09:03:05,373 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:03:05,376 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 09:03:05,377 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 09:03:05,377 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 09:03:05,378 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 09:03:05,379 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 09:03:05,380 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 09:03:05,381 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 09:03:05,381 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 09:03:05,381 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 09:03:05,382 WARN L623 FunctionHandler]: Unknown extern function __alloc_skb [2022-12-14 09:03:05,383 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 09:03:05,385 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 09:03:05,385 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 09:03:05,386 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 09:03:05,386 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:05,387 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 09:03:05,388 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 09:03:05,389 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 09:03:05,390 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 09:03:05,391 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-12-14 09:03:05,392 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 09:03:05,393 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 09:03:05,394 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-14 09:03:05,429 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,429 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,429 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,430 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,431 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,431 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,431 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,431 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,432 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,432 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,432 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,432 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,433 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,433 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,433 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,433 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,433 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,444 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 09:03:05,444 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 09:03:05,447 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 09:03:05,448 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:05,455 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 09:03:05,456 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 09:03:05,458 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 09:03:05,458 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 09:03:05,459 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 09:03:05,459 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 09:03:05,461 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:03:05,463 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:05,464 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:05,464 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:05,472 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 09:03:05,474 WARN L623 FunctionHandler]: Unknown extern function skb_copy_and_csum_dev [2022-12-14 09:03:05,476 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 09:03:05,477 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 09:03:05,477 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 09:03:05,486 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:05,487 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:05,489 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 09:03:05,489 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 09:03:05,489 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 09:03:05,489 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-14 09:03:05,497 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 09:03:05,497 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-14 09:03:05,498 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 09:03:05,498 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 09:03:05,498 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 09:03:05,506 WARN L623 FunctionHandler]: Unknown extern function down_interruptible [2022-12-14 09:03:05,507 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 09:03:05,507 WARN L623 FunctionHandler]: Unknown extern function up [2022-12-14 09:03:05,509 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:05,509 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-14 09:03:05,509 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:05,510 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:05,511 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-14 09:03:05,511 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:05,511 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:05,511 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-14 09:03:05,512 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:05,512 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-12-14 09:03:05,512 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:03:05,512 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:03:05,513 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 09:03:05,514 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:05,514 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:05,518 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:05,519 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:05,522 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:05,523 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:05,523 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 09:03:05,524 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 09:03:05,524 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 09:03:05,525 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 09:03:05,525 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 09:03:05,525 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 09:03:05,526 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 09:03:05,526 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-12-14 09:03:05,527 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 09:03:05,528 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 09:03:05,528 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:03:05,530 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 09:03:05,533 WARN L623 FunctionHandler]: Unknown extern function hex_to_bin [2022-12-14 09:03:05,536 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 09:03:05,537 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 09:03:05,537 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 09:03:05,538 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:03:05,538 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 09:03:05,539 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 09:03:05,540 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 09:03:05,541 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 09:03:05,541 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 09:03:05,542 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:03:05,542 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:03:05,544 WARN L623 FunctionHandler]: Unknown extern function pci_dev_get [2022-12-14 09:03:05,544 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:05,545 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 09:03:05,545 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:05,545 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 09:03:05,546 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 09:03:05,546 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 09:03:05,547 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:05,547 WARN L623 FunctionHandler]: Unknown extern function pci_dev_put [2022-12-14 09:03:05,547 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:03:05,547 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 09:03:05,548 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 09:03:05,548 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 09:03:05,549 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 09:03:05,549 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 09:03:05,550 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 09:03:05,550 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 09:03:05,550 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 09:03:05,570 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 09:03:05,572 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 09:03:05,573 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 09:03:05,574 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 09:03:05,578 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 09:03:05,579 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 09:03:05,584 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 09:03:05,584 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 09:03:05,586 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 09:03:05,587 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 09:03:05,587 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 09:03:05,588 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 09:03:05,588 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 09:03:05,588 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 09:03:05,588 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 09:03:05,589 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 09:03:05,590 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 09:03:05,591 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 09:03:05,591 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 09:03:05,603 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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2022-12-14 09:03:05,603 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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2022-12-14 09:03:05,603 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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2022-12-14 09:03:05,604 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_85c458ee-840a-4c7c-bcde-bd660fc67e0a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2022-12-14 09:03:05,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:03:05,849 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:03:05,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05 WrapperNode [2022-12-14 09:03:05,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:03:05,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:03:05,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:03:05,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:03:05,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:05,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:06,128 INFO L138 Inliner]: procedures = 663, calls = 4690, calls flagged for inlining = 358, calls inlined = 345, statements flattened = 10418 [2022-12-14 09:03:06,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:03:06,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:03:06,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:03:06,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:03:06,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:06,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:06,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:06,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:06,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:06,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:06,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:06,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:06,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:03:06,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:03:06,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:03:06,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:03:06,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (1/1) ... [2022-12-14 09:03:06,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:03:06,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:03:06,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:03:06,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85c458ee-840a-4c7c-bcde-bd660fc67e0a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:03:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 09:03:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 09:03:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-12-14 09:03:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-12-14 09:03:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure hw_del_addr [2022-12-14 09:03:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_del_addr [2022-12-14 09:03:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 09:03:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 09:03:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol [2022-12-14 09:03:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol [2022-12-14 09:03:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 09:03:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 09:03:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-12-14 09:03:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-12-14 09:03:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_init [2022-12-14 09:03:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_init [2022-12-14 09:03:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ack_intr [2022-12-14 09:03:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ack_intr [2022-12-14 09:03:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_timeout [2022-12-14 09:03:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_timeout [2022-12-14 09:03:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure bridge_change [2022-12-14 09:03:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure bridge_change [2022-12-14 09:03:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 09:03:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 09:03:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure set_flow_ctrl [2022-12-14 09:03:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure set_flow_ctrl [2022-12-14 09:03:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 09:03:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 09:03:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-12-14 09:03:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-12-14 09:03:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-12-14 09:03:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-12-14 09:03:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_len [2022-12-14 09:03:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_len [2022-12-14 09:03:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_check_desc_num [2022-12-14 09:03:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_check_desc_num [2022-12-14 09:03:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 09:03:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 09:03:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 09:03:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 09:03:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 09:03:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 09:03:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 09:03:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 09:03:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure set_media_state [2022-12-14 09:03:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure set_media_state [2022-12-14 09:03:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 09:03:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 09:03:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 09:03:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 09:03:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 09:03:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 09:03:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_intr [2022-12-14 09:03:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_intr [2022-12-14 09:03:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:03:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-12-14 09:03:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-12-14 09:03:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-12-14 09:03:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-12-14 09:03:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-12-14 09:03:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-12-14 09:03:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg [2022-12-14 09:03:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg [2022-12-14 09:03:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure state_gpio [2022-12-14 09:03:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure state_gpio [2022-12-14 09:03:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr [2022-12-14 09:03:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr [2022-12-14 09:03:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2022-12-14 09:03:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2022-12-14 09:03:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 09:03:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 09:03:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_resume [2022-12-14 09:03:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_resume [2022-12-14 09:03:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr_bit [2022-12-14 09:03:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr_bit [2022-12-14 09:03:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_eeprom_len [2022-12-14 09:03:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_eeprom_len [2022-12-14 09:03:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_buffers [2022-12-14 09:03:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_buffers [2022-12-14 09:03:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 09:03:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_clk [2022-12-14 09:03:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_clk [2022-12-14 09:03:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 09:03:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 09:03:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 09:03:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset [2022-12-14 09:03:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset [2022-12-14 09:03:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 09:03:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 09:03:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure rx_proc [2022-12-14 09:03:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_proc [2022-12-14 09:03:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure release_desc [2022-12-14 09:03:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure release_desc [2022-12-14 09:03:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:03:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 09:03:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 09:03:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure hw_resume_rx [2022-12-14 09:03:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_resume_rx [2022-12-14 09:03:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 09:03:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 09:03:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 09:03:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 09:03:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_netpoll [2022-12-14 09:03:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_netpoll [2022-12-14 09:03:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 09:03:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 09:03:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-12-14 09:03:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-12-14 09:03:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 09:03:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 09:03:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_add_addr [2022-12-14 09:03:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_add_addr [2022-12-14 09:03:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-12-14 09:03:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-12-14 09:03:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_grp_addr [2022-12-14 09:03:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_grp_addr [2022-12-14 09:03:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 09:03:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 09:03:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:03:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 09:03:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 09:03:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 09:03:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 09:03:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:03:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure sw_w_sta_mac_table [2022-12-14 09:03:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_w_sta_mac_table [2022-12-14 09:03:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-12-14 09:03:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-12-14 09:03:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 09:03:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 09:03:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 09:03:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 09:03:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:03:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 09:03:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 09:03:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure hw_stop_rx [2022-12-14 09:03:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_stop_rx [2022-12-14 09:03:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_intr [2022-12-14 09:03:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_intr [2022-12-14 09:03:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 09:03:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 09:03:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-12-14 09:03:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-12-14 09:03:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_rx_buffers [2022-12-14 09:03:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_rx_buffers [2022-12-14 09:03:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_mem [2022-12-14 09:03:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_mem [2022-12-14 09:03:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 09:03:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 09:03:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure hw_w_phy [2022-12-14 09:03:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_w_phy [2022-12-14 09:03:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 09:03:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 09:03:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-12-14 09:03:06,515 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-12-14 09:03:06,515 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-12-14 09:03:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-12-14 09:03:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_set_rx_mode [2022-12-14 09:03:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_set_rx_mode [2022-12-14 09:03:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-12-14 09:03:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-12-14 09:03:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-12-14 09:03:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-12-14 09:03:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:03:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:03:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_cleanup [2022-12-14 09:03:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_cleanup [2022-12-14 09:03:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure hw_r_phy [2022-12-14 09:03:06,516 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_r_phy [2022-12-14 09:03:06,516 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_addr [2022-12-14 09:03:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_addr [2022-12-14 09:03:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 09:03:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 09:03:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 09:03:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 09:03:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_pkt [2022-12-14 09:03:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_pkt [2022-12-14 09:03:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-12-14 09:03:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-12-14 09:03:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure port_get_link_speed [2022-12-14 09:03:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure port_get_link_speed [2022-12-14 09:03:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 09:03:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 09:03:06,517 INFO L130 BoogieDeclarations]: Found specification of procedure port_r16 [2022-12-14 09:03:06,517 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r16 [2022-12-14 09:03:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hwlock_of_dev_info [2022-12-14 09:03:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hwlock_of_dev_info [2022-12-14 09:03:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_port_base_vlan [2022-12-14 09:03:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_port_base_vlan [2022-12-14 09:03:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure drop_gpio [2022-12-14 09:03:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_gpio [2022-12-14 09:03:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 09:03:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 09:03:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_desc_base [2022-12-14 09:03:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_desc_base [2022-12-14 09:03:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 09:03:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 09:03:06,518 INFO L130 BoogieDeclarations]: Found specification of procedure hw_block_intr [2022-12-14 09:03:06,518 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_block_intr [2022-12-14 09:03:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 09:03:06,519 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 09:03:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-12-14 09:03:06,519 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-12-14 09:03:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2022-12-14 09:03:06,519 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2022-12-14 09:03:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_timer [2022-12-14 09:03:06,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_timer [2022-12-14 09:03:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset_pkts [2022-12-14 09:03:06,519 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset_pkts [2022-12-14 09:03:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 09:03:06,519 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 09:03:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure hw_disable [2022-12-14 09:03:06,519 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_disable [2022-12-14 09:03:06,519 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 09:03:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 09:03:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-12-14 09:03:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-12-14 09:03:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure get_mac_addr [2022-12-14 09:03:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mac_addr [2022-12-14 09:03:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure hw_restore_intr [2022-12-14 09:03:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_restore_intr [2022-12-14 09:03:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 09:03:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 09:03:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:03:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 09:03:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 09:03:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 09:03:06,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 09:03:06,520 INFO L130 BoogieDeclarations]: Found specification of procedure hw_start_rx [2022-12-14 09:03:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_start_rx [2022-12-14 09:03:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:03:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg_broad_storm [2022-12-14 09:03:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg_broad_storm [2022-12-14 09:03:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-12-14 09:03:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-12-14 09:03:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure hw_turn_on_intr [2022-12-14 09:03:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_turn_on_intr [2022-12-14 09:03:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-12-14 09:03:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-12-14 09:03:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure sw_chk [2022-12-14 09:03:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_chk [2022-12-14 09:03:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:03:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_wol_frame [2022-12-14 09:03:06,521 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_wol_frame [2022-12-14 09:03:06,521 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 09:03:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 09:03:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 09:03:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 09:03:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 09:03:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 09:03:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 09:03:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 09:03:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-12-14 09:03:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-12-14 09:03:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_pkt [2022-12-14 09:03:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_pkt [2022-12-14 09:03:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 09:03:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 09:03:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_63 [2022-12-14 09:03:06,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_63 [2022-12-14 09:03:06,522 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg [2022-12-14 09:03:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg [2022-12-14 09:03:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-12-14 09:03:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-12-14 09:03:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-12-14 09:03:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-12-14 09:03:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_update_timer [2022-12-14 09:03:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_update_timer [2022-12-14 09:03:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 09:03:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 09:03:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_free [2022-12-14 09:03:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_free [2022-12-14 09:03:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_stop_timer [2022-12-14 09:03:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_stop_timer [2022-12-14 09:03:06,523 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 09:03:06,523 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 09:03:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_intr [2022-12-14 09:03:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_intr [2022-12-14 09:03:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-12-14 09:03:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-12-14 09:03:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure hw_add_addr [2022-12-14 09:03:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_add_addr [2022-12-14 09:03:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_cnt [2022-12-14 09:03:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_cnt [2022-12-14 09:03:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_buf [2022-12-14 09:03:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_buf [2022-12-14 09:03:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-12-14 09:03:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-12-14 09:03:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 09:03:06,524 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 09:03:06,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_72 [2022-12-14 09:03:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_72 [2022-12-14 09:03:06,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:03:06,525 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_multicast [2022-12-14 09:03:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_multicast [2022-12-14 09:03:06,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 09:03:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 09:03:06,525 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_regs_len [2022-12-14 09:03:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_regs_len [2022-12-14 09:03:06,525 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_multicast [2022-12-14 09:03:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_multicast [2022-12-14 09:03:06,525 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_link_speed [2022-12-14 09:03:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_link_speed [2022-12-14 09:03:06,525 INFO L130 BoogieDeclarations]: Found specification of procedure raise_gpio [2022-12-14 09:03:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_gpio [2022-12-14 09:03:06,525 INFO L130 BoogieDeclarations]: Found specification of procedure port_w16 [2022-12-14 09:03:06,525 INFO L138 BoogieDeclarations]: Found implementation of procedure port_w16 [2022-12-14 09:03:06,526 INFO L130 BoogieDeclarations]: Found specification of procedure empty_addr [2022-12-14 09:03:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_addr [2022-12-14 09:03:06,526 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 09:03:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 09:03:06,526 INFO L130 BoogieDeclarations]: Found specification of procedure mib_read_work [2022-12-14 09:03:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure mib_read_work [2022-12-14 09:03:06,526 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable_wol [2022-12-14 09:03:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable_wol [2022-12-14 09:03:06,526 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_stp_state [2022-12-14 09:03:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_stp_state [2022-12-14 09:03:06,526 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_wol_pme_status [2022-12-14 09:03:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_wol_pme_status [2022-12-14 09:03:06,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_64 [2022-12-14 09:03:06,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_64 [2022-12-14 09:03:06,526 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_start_timer [2022-12-14 09:03:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_start_timer [2022-12-14 09:03:06,527 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-12-14 09:03:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-12-14 09:03:06,527 INFO L130 BoogieDeclarations]: Found specification of procedure copy_old_skb [2022-12-14 09:03:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_old_skb [2022-12-14 09:03:06,527 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol_pme [2022-12-14 09:03:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol_pme [2022-12-14 09:03:06,527 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_buf [2022-12-14 09:03:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_buf [2022-12-14 09:03:06,527 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_network_header [2022-12-14 09:03:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_network_header [2022-12-14 09:03:06,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 09:03:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 09:03:06,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-12-14 09:03:06,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-12-14 09:03:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_exit [2022-12-14 09:03:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_exit [2022-12-14 09:03:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable [2022-12-14 09:03:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable [2022-12-14 09:03:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_alloc_soft_desc [2022-12-14 09:03:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_alloc_soft_desc [2022-12-14 09:03:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-12-14 09:03:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-12-14 09:03:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 09:03:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 09:03:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_broad_storm [2022-12-14 09:03:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_broad_storm [2022-12-14 09:03:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:03:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 09:03:06,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 09:03:06,528 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_power_saving [2022-12-14 09:03:06,529 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_power_saving [2022-12-14 09:03:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-12-14 09:03:06,529 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-12-14 09:03:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure spi_reg [2022-12-14 09:03:06,529 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_reg [2022-12-14 09:03:07,336 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:03:07,340 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:03:10,476 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 09:03:22,322 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 09:03:22,442 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:03:24,449 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:03:24,449 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-14 09:03:24,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:03:24 BoogieIcfgContainer [2022-12-14 09:03:24,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:03:24,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:03:24,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:03:24,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:03:24,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:03:01" (1/3) ... [2022-12-14 09:03:24,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47bf6597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:03:24, skipping insertion in model container [2022-12-14 09:03:24,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:03:05" (2/3) ... [2022-12-14 09:03:24,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47bf6597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:03:24, skipping insertion in model container [2022-12-14 09:03:24,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:03:24" (3/3) ... [2022-12-14 09:03:24,462 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-12-14 09:03:24,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:03:24,480 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 09:03:24,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:03:24,557 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;@c940d0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:03:24,557 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 09:03:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 2328 states, 1392 states have (on average 1.3160919540229885) internal successors, (1832), 1459 states have internal predecessors, (1832), 767 states have call successors, (767), 171 states have call predecessors, (767), 170 states have return successors, (761), 748 states have call predecessors, (761), 761 states have call successors, (761) [2022-12-14 09:03:24,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-12-14 09:03:24,580 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:03:24,581 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:24,581 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 09:03:24,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:03:24,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1317925884, now seen corresponding path program 1 times [2022-12-14 09:03:24,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:03:24,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283478953] [2022-12-14 09:03:24,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:03:24,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:03:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:03:25,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-12-14 09:03:25,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:03:25,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283478953] [2022-12-14 09:03:25,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283478953] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:03:25,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:03:25,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:03:25,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271275467] [2022-12-14 09:03:25,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:03:25,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:03:25,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:03:25,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:03:25,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:03:25,547 INFO L87 Difference]: Start difference. First operand has 2328 states, 1392 states have (on average 1.3160919540229885) internal successors, (1832), 1459 states have internal predecessors, (1832), 767 states have call successors, (767), 171 states have call predecessors, (767), 170 states have return successors, (761), 748 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 09:03:28,704 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 09:03:34,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:03:34,551 INFO L93 Difference]: Finished difference Result 6808 states and 9907 transitions. [2022-12-14 09:03:34,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:03:34,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2022-12-14 09:03:34,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:03:34,581 INFO L225 Difference]: With dead ends: 6808 [2022-12-14 09:03:34,581 INFO L226 Difference]: Without dead ends: 4509 [2022-12-14 09:03:34,596 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 09:03:34,598 INFO L413 NwaCegarLoop]: 3519 mSDtfsCounter, 3188 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3191 SdHoareTripleChecker+Valid, 6292 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:03:34,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3191 Valid, 6292 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1061 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-12-14 09:03:34,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2022-12-14 09:03:34,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4505. [2022-12-14 09:03:34,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4505 states, 2703 states have (on average 1.314095449500555) internal successors, (3552), 2832 states have internal predecessors, (3552), 1463 states have call successors, (1463), 337 states have call predecessors, (1463), 336 states have return successors, (1462), 1433 states have call predecessors, (1462), 1459 states have call successors, (1462) [2022-12-14 09:03:34,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4505 states to 4505 states and 6477 transitions. [2022-12-14 09:03:34,895 INFO L78 Accepts]: Start accepts. Automaton has 4505 states and 6477 transitions. Word has length 211 [2022-12-14 09:03:34,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:03:34,896 INFO L495 AbstractCegarLoop]: Abstraction has 4505 states and 6477 transitions. [2022-12-14 09:03:34,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 09:03:34,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4505 states and 6477 transitions. [2022-12-14 09:03:34,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-12-14 09:03:34,903 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:03:34,903 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:34,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:03:34,904 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 09:03:34,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:03:34,904 INFO L85 PathProgramCache]: Analyzing trace with hash 962362972, now seen corresponding path program 1 times [2022-12-14 09:03:34,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:03:34,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276682130] [2022-12-14 09:03:34,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:03:34,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:03:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:03:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-12-14 09:03:35,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:03:35,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276682130] [2022-12-14 09:03:35,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276682130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:03:35,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:03:35,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:03:35,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349288115] [2022-12-14 09:03:35,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:03:35,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:03:35,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:03:35,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:03:35,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:03:35,339 INFO L87 Difference]: Start difference. First operand 4505 states and 6477 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, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 09:03:37,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:03:41,715 WARN L539 Checker$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 09:03:45,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:03:45,053 INFO L93 Difference]: Finished difference Result 13399 states and 19286 transitions. [2022-12-14 09:03:45,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:03:45,053 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, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 215 [2022-12-14 09:03:45,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:03:45,091 INFO L225 Difference]: With dead ends: 13399 [2022-12-14 09:03:45,091 INFO L226 Difference]: Without dead ends: 8933 [2022-12-14 09:03:45,106 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 09:03:45,107 INFO L413 NwaCegarLoop]: 3571 mSDtfsCounter, 3235 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3235 SdHoareTripleChecker+Valid, 6349 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:03:45,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3235 Valid, 6349 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1059 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2022-12-14 09:03:45,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8933 states. [2022-12-14 09:03:45,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8933 to 8904. [2022-12-14 09:03:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8904 states, 5358 states have (on average 1.314856289660321) internal successors, (7045), 5618 states have internal predecessors, (7045), 2872 states have call successors, (2872), 672 states have call predecessors, (2872), 671 states have return successors, (2907), 2809 states have call predecessors, (2907), 2868 states have call successors, (2907) [2022-12-14 09:03:45,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8904 states to 8904 states and 12824 transitions. [2022-12-14 09:03:45,415 INFO L78 Accepts]: Start accepts. Automaton has 8904 states and 12824 transitions. Word has length 215 [2022-12-14 09:03:45,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:03:45,416 INFO L495 AbstractCegarLoop]: Abstraction has 8904 states and 12824 transitions. [2022-12-14 09:03:45,416 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, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 09:03:45,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8904 states and 12824 transitions. [2022-12-14 09:03:45,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-12-14 09:03:45,421 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:03:45,421 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:03:45,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:03:45,421 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 09:03:45,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:03:45,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1872055952, now seen corresponding path program 1 times [2022-12-14 09:03:45,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:03:45,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082031799] [2022-12-14 09:03:45,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:03:45,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:03:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:03:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-12-14 09:03:45,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:03:45,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082031799] [2022-12-14 09:03:45,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082031799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:03:45,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:03:45,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:03:45,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511045509] [2022-12-14 09:03:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:03:45,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:03:45,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:03:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:03:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:03:45,957 INFO L87 Difference]: Start difference. First operand 8904 states and 12824 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 09:03:49,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:03:51,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:03:56,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:03:58,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:04:00,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:00,000 INFO L93 Difference]: Finished difference Result 26386 states and 38023 transitions. [2022-12-14 09:04:00,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:00,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 226 [2022-12-14 09:04:00,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:00,071 INFO L225 Difference]: With dead ends: 26386 [2022-12-14 09:04:00,071 INFO L226 Difference]: Without dead ends: 17521 [2022-12-14 09:04:00,119 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 09:04:00,120 INFO L413 NwaCegarLoop]: 3631 mSDtfsCounter, 3154 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3156 SdHoareTripleChecker+Valid, 6418 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:00,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3156 Valid, 6418 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1071 Invalid, 1 Unknown, 0 Unchecked, 13.6s Time] [2022-12-14 09:04:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17521 states. [2022-12-14 09:04:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17521 to 17474. [2022-12-14 09:04:00,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17474 states, 10518 states have (on average 1.3138429359193764) internal successors, (13819), 11020 states have internal predecessors, (13819), 5620 states have call successors, (5620), 1334 states have call predecessors, (5620), 1333 states have return successors, (5759), 5491 states have call predecessors, (5759), 5616 states have call successors, (5759) [2022-12-14 09:04:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17474 states to 17474 states and 25198 transitions. [2022-12-14 09:04:00,841 INFO L78 Accepts]: Start accepts. Automaton has 17474 states and 25198 transitions. Word has length 226 [2022-12-14 09:04:00,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:00,842 INFO L495 AbstractCegarLoop]: Abstraction has 17474 states and 25198 transitions. [2022-12-14 09:04:00,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 09:04:00,843 INFO L276 IsEmpty]: Start isEmpty. Operand 17474 states and 25198 transitions. [2022-12-14 09:04:00,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-12-14 09:04:00,847 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:00,847 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2022-12-14 09:04:00,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:04:00,847 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 09:04:00,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:00,848 INFO L85 PathProgramCache]: Analyzing trace with hash 312627879, now seen corresponding path program 1 times [2022-12-14 09:04:00,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:00,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793354613] [2022-12-14 09:04:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:00,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:01,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2022-12-14 09:04:01,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:01,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793354613] [2022-12-14 09:04:01,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793354613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:01,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:01,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:04:01,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700506571] [2022-12-14 09:04:01,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:01,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:04:01,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:01,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:04:01,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:04:01,557 INFO L87 Difference]: Start difference. First operand 17474 states and 25198 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 09:04:04,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:04:09,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:04:13,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:04:14,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:04:16,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:04:26,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:26,661 INFO L93 Difference]: Finished difference Result 45478 states and 65123 transitions. [2022-12-14 09:04:26,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:04:26,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 237 [2022-12-14 09:04:26,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:26,758 INFO L225 Difference]: With dead ends: 45478 [2022-12-14 09:04:26,758 INFO L226 Difference]: Without dead ends: 28043 [2022-12-14 09:04:26,833 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 09:04:26,834 INFO L413 NwaCegarLoop]: 4043 mSDtfsCounter, 6266 mSDsluCounter, 6865 mSDsCounter, 0 mSdLazyCounter, 5068 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6474 SdHoareTripleChecker+Valid, 10908 SdHoareTripleChecker+Invalid, 5106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 5068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:26,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6474 Valid, 10908 Invalid, 5106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 5068 Invalid, 0 Unknown, 0 Unchecked, 24.0s Time] [2022-12-14 09:04:26,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28043 states. [2022-12-14 09:04:27,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28043 to 27973. [2022-12-14 09:04:27,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27973 states, 16755 states have (on average 1.3087436586093704) internal successors, (21928), 17572 states have internal predecessors, (21928), 8852 states have call successors, (8852), 2362 states have call predecessors, (8852), 2363 states have return successors, (8989), 8664 states have call predecessors, (8989), 8848 states have call successors, (8989) [2022-12-14 09:04:28,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27973 states to 27973 states and 39769 transitions. [2022-12-14 09:04:28,041 INFO L78 Accepts]: Start accepts. Automaton has 27973 states and 39769 transitions. Word has length 237 [2022-12-14 09:04:28,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:28,042 INFO L495 AbstractCegarLoop]: Abstraction has 27973 states and 39769 transitions. [2022-12-14 09:04:28,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 09:04:28,042 INFO L276 IsEmpty]: Start isEmpty. Operand 27973 states and 39769 transitions. [2022-12-14 09:04:28,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-12-14 09:04:28,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:28,049 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:04:28,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:04:28,049 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 09:04:28,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:28,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1107721718, now seen corresponding path program 1 times [2022-12-14 09:04:28,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:28,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570111351] [2022-12-14 09:04:28,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:28,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-12-14 09:04:28,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:28,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570111351] [2022-12-14 09:04:28,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570111351] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:28,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:28,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:28,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208275957] [2022-12-14 09:04:28,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:28,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:28,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:28,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:28,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:28,381 INFO L87 Difference]: Start difference. First operand 27973 states and 39769 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 09:04:30,964 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 09:04:36,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:04:37,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:37,990 INFO L93 Difference]: Finished difference Result 65953 states and 92724 transitions. [2022-12-14 09:04:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:37,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 237 [2022-12-14 09:04:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:38,147 INFO L225 Difference]: With dead ends: 65953 [2022-12-14 09:04:38,147 INFO L226 Difference]: Without dead ends: 38019 [2022-12-14 09:04:38,224 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 09:04:38,225 INFO L413 NwaCegarLoop]: 3378 mSDtfsCounter, 2497 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 6115 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:38,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2500 Valid, 6115 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1106 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-12-14 09:04:38,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38019 states. [2022-12-14 09:04:39,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38019 to 37982. [2022-12-14 09:04:39,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37982 states, 22713 states have (on average 1.287500550345617) internal successors, (29243), 23838 states have internal predecessors, (29243), 11682 states have call successors, (11682), 3585 states have call predecessors, (11682), 3584 states have return successors, (11963), 11372 states have call predecessors, (11963), 11678 states have call successors, (11963) [2022-12-14 09:04:39,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37982 states to 37982 states and 52888 transitions. [2022-12-14 09:04:39,630 INFO L78 Accepts]: Start accepts. Automaton has 37982 states and 52888 transitions. Word has length 237 [2022-12-14 09:04:39,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:39,630 INFO L495 AbstractCegarLoop]: Abstraction has 37982 states and 52888 transitions. [2022-12-14 09:04:39,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 09:04:39,630 INFO L276 IsEmpty]: Start isEmpty. Operand 37982 states and 52888 transitions. [2022-12-14 09:04:39,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-12-14 09:04:39,632 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:39,632 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 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] [2022-12-14 09:04:39,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:04:39,632 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 09:04:39,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:39,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1783481783, now seen corresponding path program 1 times [2022-12-14 09:04:39,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:39,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914388413] [2022-12-14 09:04:39,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:39,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:39,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-12-14 09:04:39,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:39,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914388413] [2022-12-14 09:04:39,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914388413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:39,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:39,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:04:39,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664697451] [2022-12-14 09:04:39,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:39,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:39,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:39,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:39,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:39,909 INFO L87 Difference]: Start difference. First operand 37982 states and 52888 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 09:04:43,552 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 09:04:50,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:50,502 INFO L93 Difference]: Finished difference Result 108386 states and 151403 transitions. [2022-12-14 09:04:50,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:50,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 244 [2022-12-14 09:04:50,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:50,730 INFO L225 Difference]: With dead ends: 108386 [2022-12-14 09:04:50,731 INFO L226 Difference]: Without dead ends: 70443 [2022-12-14 09:04:50,830 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 09:04:50,830 INFO L413 NwaCegarLoop]: 3709 mSDtfsCounter, 3235 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 6496 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:50,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 6496 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1070 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-12-14 09:04:50,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70443 states. [2022-12-14 09:04:53,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70443 to 70370. [2022-12-14 09:04:53,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70370 states, 42025 states have (on average 1.2907317073170732) internal successors, (54243), 44169 states have internal predecessors, (54243), 21829 states have call successors, (21829), 6522 states have call predecessors, (21829), 6513 states have return successors, (22370), 21192 states have call predecessors, (22370), 21825 states have call successors, (22370) [2022-12-14 09:04:53,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70370 states to 70370 states and 98442 transitions. [2022-12-14 09:04:53,359 INFO L78 Accepts]: Start accepts. Automaton has 70370 states and 98442 transitions. Word has length 244 [2022-12-14 09:04:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:53,360 INFO L495 AbstractCegarLoop]: Abstraction has 70370 states and 98442 transitions. [2022-12-14 09:04:53,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 09:04:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 70370 states and 98442 transitions. [2022-12-14 09:04:53,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-14 09:04:53,361 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:53,362 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 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] [2022-12-14 09:04:53,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:04:53,362 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 09:04:53,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:53,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1366644721, now seen corresponding path program 1 times [2022-12-14 09:04:53,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:53,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005253664] [2022-12-14 09:04:53,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:53,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-12-14 09:04:54,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:54,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005253664] [2022-12-14 09:04:54,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005253664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:54,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:54,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:04:54,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508153761] [2022-12-14 09:04:54,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:54,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:04:54,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:54,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:04:54,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:04:54,031 INFO L87 Difference]: Start difference. First operand 70370 states and 98442 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 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 09:04:57,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:04:58,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:00,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:09,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:09,487 INFO L93 Difference]: Finished difference Result 70376 states and 98447 transitions. [2022-12-14 09:05:09,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:05:09,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 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 253 [2022-12-14 09:05:09,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:09,722 INFO L225 Difference]: With dead ends: 70376 [2022-12-14 09:05:09,722 INFO L226 Difference]: Without dead ends: 70374 [2022-12-14 09:05:09,752 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 09:05:09,753 INFO L413 NwaCegarLoop]: 2786 mSDtfsCounter, 3244 mSDsluCounter, 5559 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3255 SdHoareTripleChecker+Valid, 8345 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:09,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3255 Valid, 8345 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2022-12-14 09:05:09,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70374 states. [2022-12-14 09:05:12,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70374 to 70374. [2022-12-14 09:05:12,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70374 states, 42028 states have (on average 1.2907109546016942) internal successors, (54246), 44172 states have internal predecessors, (54246), 21829 states have call successors, (21829), 6523 states have call predecessors, (21829), 6514 states have return successors, (22370), 21192 states have call predecessors, (22370), 21825 states have call successors, (22370) [2022-12-14 09:05:13,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70374 states to 70374 states and 98445 transitions. [2022-12-14 09:05:13,019 INFO L78 Accepts]: Start accepts. Automaton has 70374 states and 98445 transitions. Word has length 253 [2022-12-14 09:05:13,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:13,020 INFO L495 AbstractCegarLoop]: Abstraction has 70374 states and 98445 transitions. [2022-12-14 09:05:13,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 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 09:05:13,020 INFO L276 IsEmpty]: Start isEmpty. Operand 70374 states and 98445 transitions. [2022-12-14 09:05:13,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-12-14 09:05:13,023 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:13,023 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 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] [2022-12-14 09:05:13,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:05:13,023 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 09:05:13,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:13,024 INFO L85 PathProgramCache]: Analyzing trace with hash -462968194, now seen corresponding path program 1 times [2022-12-14 09:05:13,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:13,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492422804] [2022-12-14 09:05:13,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:13,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:13,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2022-12-14 09:05:13,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:13,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492422804] [2022-12-14 09:05:13,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492422804] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:13,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:13,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:05:13,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334023966] [2022-12-14 09:05:13,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:13,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:05:13,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:13,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:05:13,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:05:13,668 INFO L87 Difference]: Start difference. First operand 70374 states and 98445 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 09:05:18,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:19,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:21,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:29,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:29,574 INFO L93 Difference]: Finished difference Result 70380 states and 98450 transitions. [2022-12-14 09:05:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:05:29,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 262 [2022-12-14 09:05:29,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:29,823 INFO L225 Difference]: With dead ends: 70380 [2022-12-14 09:05:29,823 INFO L226 Difference]: Without dead ends: 70378 [2022-12-14 09:05:29,847 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 09:05:29,848 INFO L413 NwaCegarLoop]: 2789 mSDtfsCounter, 3238 mSDsluCounter, 5559 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 8348 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:29,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3248 Valid, 8348 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2022-12-14 09:05:29,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70378 states. [2022-12-14 09:05:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70378 to 70378. [2022-12-14 09:05:32,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70378 states, 42031 states have (on average 1.290690204848802) internal successors, (54249), 44175 states have internal predecessors, (54249), 21829 states have call successors, (21829), 6524 states have call predecessors, (21829), 6515 states have return successors, (22370), 21192 states have call predecessors, (22370), 21825 states have call successors, (22370) [2022-12-14 09:05:32,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70378 states to 70378 states and 98448 transitions. [2022-12-14 09:05:32,987 INFO L78 Accepts]: Start accepts. Automaton has 70378 states and 98448 transitions. Word has length 262 [2022-12-14 09:05:32,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:32,988 INFO L495 AbstractCegarLoop]: Abstraction has 70378 states and 98448 transitions. [2022-12-14 09:05:32,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 09:05:32,988 INFO L276 IsEmpty]: Start isEmpty. Operand 70378 states and 98448 transitions. [2022-12-14 09:05:32,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-12-14 09:05:32,990 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:32,990 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:05:32,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:05:32,990 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 09:05:32,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1560485239, now seen corresponding path program 1 times [2022-12-14 09:05:32,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:32,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729871649] [2022-12-14 09:05:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:32,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:33,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1574 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-12-14 09:05:33,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:33,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729871649] [2022-12-14 09:05:33,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729871649] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:33,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:33,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:05:33,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109871800] [2022-12-14 09:05:33,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:33,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:05:33,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:33,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:05:33,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:05:33,426 INFO L87 Difference]: Start difference. First operand 70378 states and 98448 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 09:05:37,661 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 09:05:44,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:05:44,896 INFO L93 Difference]: Finished difference Result 70638 states and 98745 transitions. [2022-12-14 09:05:44,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:05:44,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 266 [2022-12-14 09:05:44,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:05:45,111 INFO L225 Difference]: With dead ends: 70638 [2022-12-14 09:05:45,111 INFO L226 Difference]: Without dead ends: 70636 [2022-12-14 09:05:45,136 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 09:05:45,137 INFO L413 NwaCegarLoop]: 2799 mSDtfsCounter, 3236 mSDsluCounter, 5615 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 8414 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:05:45,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3248 Valid, 8414 Invalid, 1606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1604 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-12-14 09:05:45,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70636 states. [2022-12-14 09:05:48,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70636 to 70634. [2022-12-14 09:05:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70634 states, 42178 states have (on average 1.2902460998624876) internal successors, (54420), 44328 states have internal predecessors, (54420), 21883 states have call successors, (21883), 6573 states have call predecessors, (21883), 6570 states have return successors, (22439), 21246 states have call predecessors, (22439), 21879 states have call successors, (22439) [2022-12-14 09:05:48,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70634 states to 70634 states and 98742 transitions. [2022-12-14 09:05:48,524 INFO L78 Accepts]: Start accepts. Automaton has 70634 states and 98742 transitions. Word has length 266 [2022-12-14 09:05:48,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:05:48,524 INFO L495 AbstractCegarLoop]: Abstraction has 70634 states and 98742 transitions. [2022-12-14 09:05:48,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 09:05:48,524 INFO L276 IsEmpty]: Start isEmpty. Operand 70634 states and 98742 transitions. [2022-12-14 09:05:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-12-14 09:05:48,527 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:05:48,528 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 4, 3, 3, 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] [2022-12-14 09:05:48,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:05:48,528 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 09:05:48,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:05:48,528 INFO L85 PathProgramCache]: Analyzing trace with hash -166000322, now seen corresponding path program 1 times [2022-12-14 09:05:48,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:05:48,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177119985] [2022-12-14 09:05:48,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:05:48,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:05:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:05:49,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1585 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1579 trivial. 0 not checked. [2022-12-14 09:05:49,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:05:49,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177119985] [2022-12-14 09:05:49,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177119985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:05:49,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:05:49,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:05:49,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260258842] [2022-12-14 09:05:49,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:05:49,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:05:49,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:05:49,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:05:49,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:05:49,071 INFO L87 Difference]: Start difference. First operand 70634 states and 98742 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 09:05:53,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:55,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:05:57,575 WARN L539 Checker$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 09:05:59,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:08,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:10,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:10,073 INFO L93 Difference]: Finished difference Result 77228 states and 105931 transitions. [2022-12-14 09:06:10,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:06:10,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 272 [2022-12-14 09:06:10,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:10,285 INFO L225 Difference]: With dead ends: 77228 [2022-12-14 09:06:10,286 INFO L226 Difference]: Without dead ends: 77226 [2022-12-14 09:06:10,310 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 09:06:10,310 INFO L413 NwaCegarLoop]: 2844 mSDtfsCounter, 3032 mSDsluCounter, 6033 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3040 SdHoareTripleChecker+Valid, 8877 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:10,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3040 Valid, 8877 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1659 Invalid, 3 Unknown, 0 Unchecked, 17.9s Time] [2022-12-14 09:06:10,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77226 states. [2022-12-14 09:06:13,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77226 to 77226. [2022-12-14 09:06:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77226 states, 45837 states have (on average 1.2776359709405065) internal successors, (58563), 48073 states have internal predecessors, (58563), 23405 states have call successors, (23405), 7984 states have call predecessors, (23405), 7981 states have return successors, (23961), 22768 states have call predecessors, (23961), 23401 states have call successors, (23961) [2022-12-14 09:06:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77226 states to 77226 states and 105929 transitions. [2022-12-14 09:06:13,735 INFO L78 Accepts]: Start accepts. Automaton has 77226 states and 105929 transitions. Word has length 272 [2022-12-14 09:06:13,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:13,736 INFO L495 AbstractCegarLoop]: Abstraction has 77226 states and 105929 transitions. [2022-12-14 09:06:13,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 09:06:13,736 INFO L276 IsEmpty]: Start isEmpty. Operand 77226 states and 105929 transitions. [2022-12-14 09:06:13,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-12-14 09:06:13,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:13,739 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 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 09:06:13,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:06:13,739 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 09:06:13,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:13,740 INFO L85 PathProgramCache]: Analyzing trace with hash 59796977, now seen corresponding path program 1 times [2022-12-14 09:06:13,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:13,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716852622] [2022-12-14 09:06:13,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:13,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1591 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1583 trivial. 0 not checked. [2022-12-14 09:06:14,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:14,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716852622] [2022-12-14 09:06:14,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716852622] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:14,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:14,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:06:14,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612517226] [2022-12-14 09:06:14,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:14,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:06:14,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:14,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:06:14,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:14,199 INFO L87 Difference]: Start difference. First operand 77226 states and 105929 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 09:06:18,230 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 09:06:27,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:27,059 INFO L93 Difference]: Finished difference Result 77234 states and 105935 transitions. [2022-12-14 09:06:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:06:27,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 273 [2022-12-14 09:06:27,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:27,283 INFO L225 Difference]: With dead ends: 77234 [2022-12-14 09:06:27,284 INFO L226 Difference]: Without dead ends: 77232 [2022-12-14 09:06:27,312 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 09:06:27,312 INFO L413 NwaCegarLoop]: 2798 mSDtfsCounter, 3238 mSDsluCounter, 5613 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 8411 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:27,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3248 Valid, 8411 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1592 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-12-14 09:06:27,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77232 states. [2022-12-14 09:06:30,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77232 to 77230. [2022-12-14 09:06:30,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77230 states, 45840 states have (on average 1.2776178010471204) internal successors, (58566), 48076 states have internal predecessors, (58566), 23405 states have call successors, (23405), 7985 states have call predecessors, (23405), 7982 states have return successors, (23961), 22768 states have call predecessors, (23961), 23401 states have call successors, (23961) [2022-12-14 09:06:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77230 states to 77230 states and 105932 transitions. [2022-12-14 09:06:31,062 INFO L78 Accepts]: Start accepts. Automaton has 77230 states and 105932 transitions. Word has length 273 [2022-12-14 09:06:31,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:31,063 INFO L495 AbstractCegarLoop]: Abstraction has 77230 states and 105932 transitions. [2022-12-14 09:06:31,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 09:06:31,063 INFO L276 IsEmpty]: Start isEmpty. Operand 77230 states and 105932 transitions. [2022-12-14 09:06:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-12-14 09:06:31,067 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:31,068 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:31,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:06:31,068 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 09:06:31,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:31,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1951881218, now seen corresponding path program 1 times [2022-12-14 09:06:31,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:31,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360646413] [2022-12-14 09:06:31,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:31,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1607 trivial. 0 not checked. [2022-12-14 09:06:31,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:31,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360646413] [2022-12-14 09:06:31,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360646413] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:31,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:31,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:06:31,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726852808] [2022-12-14 09:06:31,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:31,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:06:31,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:31,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:06:31,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:31,472 INFO L87 Difference]: Start difference. First operand 77230 states and 105932 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 09:06:35,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:36,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:06:38,921 WARN L539 Checker$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 09:06:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:06:48,871 INFO L93 Difference]: Finished difference Result 77236 states and 105937 transitions. [2022-12-14 09:06:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:06:48,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 282 [2022-12-14 09:06:48,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:06:49,127 INFO L225 Difference]: With dead ends: 77236 [2022-12-14 09:06:49,127 INFO L226 Difference]: Without dead ends: 77234 [2022-12-14 09:06:49,155 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 09:06:49,156 INFO L413 NwaCegarLoop]: 2789 mSDtfsCounter, 3238 mSDsluCounter, 5559 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3244 SdHoareTripleChecker+Valid, 8348 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:06:49,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3244 Valid, 8348 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1584 Invalid, 1 Unknown, 0 Unchecked, 13.6s Time] [2022-12-14 09:06:49,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77234 states. [2022-12-14 09:06:53,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77234 to 77234. [2022-12-14 09:06:53,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77234 states, 45843 states have (on average 1.277599633531837) internal successors, (58569), 48079 states have internal predecessors, (58569), 23405 states have call successors, (23405), 7986 states have call predecessors, (23405), 7983 states have return successors, (23961), 22768 states have call predecessors, (23961), 23401 states have call successors, (23961) [2022-12-14 09:06:53,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77234 states to 77234 states and 105935 transitions. [2022-12-14 09:06:53,616 INFO L78 Accepts]: Start accepts. Automaton has 77234 states and 105935 transitions. Word has length 282 [2022-12-14 09:06:53,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:06:53,616 INFO L495 AbstractCegarLoop]: Abstraction has 77234 states and 105935 transitions. [2022-12-14 09:06:53,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 09:06:53,617 INFO L276 IsEmpty]: Start isEmpty. Operand 77234 states and 105935 transitions. [2022-12-14 09:06:53,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-12-14 09:06:53,621 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:06:53,621 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 7, 6, 6, 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, 1, 1, 1, 1] [2022-12-14 09:06:53,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:06:53,622 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 09:06:53,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:06:53,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1915559695, now seen corresponding path program 1 times [2022-12-14 09:06:53,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:06:53,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957330991] [2022-12-14 09:06:53,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:06:53,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:06:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:06:54,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1631 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1619 trivial. 0 not checked. [2022-12-14 09:06:54,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:06:54,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957330991] [2022-12-14 09:06:54,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957330991] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:06:54,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:06:54,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:06:54,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587918414] [2022-12-14 09:06:54,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:06:54,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:06:54,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:06:54,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:06:54,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:06:54,156 INFO L87 Difference]: Start difference. First operand 77234 states and 105935 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 09:06:58,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:00,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:02,050 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 09:07:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:07:11,276 INFO L93 Difference]: Finished difference Result 77240 states and 105940 transitions. [2022-12-14 09:07:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:07:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 283 [2022-12-14 09:07:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:07:11,499 INFO L225 Difference]: With dead ends: 77240 [2022-12-14 09:07:11,499 INFO L226 Difference]: Without dead ends: 77238 [2022-12-14 09:07:11,526 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 09:07:11,527 INFO L413 NwaCegarLoop]: 2789 mSDtfsCounter, 3239 mSDsluCounter, 5559 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3244 SdHoareTripleChecker+Valid, 8348 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:07:11,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3244 Valid, 8348 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1584 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2022-12-14 09:07:11,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77238 states. [2022-12-14 09:07:15,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77238 to 77238. [2022-12-14 09:07:15,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77238 states, 45846 states have (on average 1.2775814683941893) internal successors, (58572), 48082 states have internal predecessors, (58572), 23405 states have call successors, (23405), 7987 states have call predecessors, (23405), 7984 states have return successors, (23961), 22768 states have call predecessors, (23961), 23401 states have call successors, (23961) [2022-12-14 09:07:16,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77238 states to 77238 states and 105938 transitions. [2022-12-14 09:07:16,050 INFO L78 Accepts]: Start accepts. Automaton has 77238 states and 105938 transitions. Word has length 283 [2022-12-14 09:07:16,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:07:16,051 INFO L495 AbstractCegarLoop]: Abstraction has 77238 states and 105938 transitions. [2022-12-14 09:07:16,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 09:07:16,051 INFO L276 IsEmpty]: Start isEmpty. Operand 77238 states and 105938 transitions. [2022-12-14 09:07:16,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-12-14 09:07:16,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:07:16,058 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:16,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:07:16,058 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 09:07:16,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:07:16,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1641756797, now seen corresponding path program 1 times [2022-12-14 09:07:16,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:07:16,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345709722] [2022-12-14 09:07:16,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:07:16,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:07:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:07:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1643 trivial. 0 not checked. [2022-12-14 09:07:16,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:07:16,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345709722] [2022-12-14 09:07:16,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345709722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:16,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:07:16,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:07:16,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824823122] [2022-12-14 09:07:16,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:16,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:07:16,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:16,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:07:16,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:07:16,645 INFO L87 Difference]: Start difference. First operand 77238 states and 105938 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 09:07:20,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:22,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:23,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:32,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:07:33,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:07:33,703 INFO L93 Difference]: Finished difference Result 77244 states and 105943 transitions. [2022-12-14 09:07:33,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:07:33,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 288 [2022-12-14 09:07:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:07:33,927 INFO L225 Difference]: With dead ends: 77244 [2022-12-14 09:07:33,927 INFO L226 Difference]: Without dead ends: 77242 [2022-12-14 09:07:33,955 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 09:07:33,955 INFO L413 NwaCegarLoop]: 2789 mSDtfsCounter, 3239 mSDsluCounter, 5559 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3243 SdHoareTripleChecker+Valid, 8348 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:07:33,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3243 Valid, 8348 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2022-12-14 09:07:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77242 states. [2022-12-14 09:07:38,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77242 to 77242. [2022-12-14 09:07:38,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77242 states, 45849 states have (on average 1.2775633056337106) internal successors, (58575), 48085 states have internal predecessors, (58575), 23405 states have call successors, (23405), 7988 states have call predecessors, (23405), 7985 states have return successors, (23961), 22768 states have call predecessors, (23961), 23401 states have call successors, (23961) [2022-12-14 09:07:38,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77242 states to 77242 states and 105941 transitions. [2022-12-14 09:07:38,528 INFO L78 Accepts]: Start accepts. Automaton has 77242 states and 105941 transitions. Word has length 288 [2022-12-14 09:07:38,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:07:38,529 INFO L495 AbstractCegarLoop]: Abstraction has 77242 states and 105941 transitions. [2022-12-14 09:07:38,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 09:07:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 77242 states and 105941 transitions. [2022-12-14 09:07:38,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-12-14 09:07:38,533 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:07:38,533 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 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 09:07:38,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:07:38,533 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:07:38,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:07:38,534 INFO L85 PathProgramCache]: Analyzing trace with hash -328937066, now seen corresponding path program 1 times [2022-12-14 09:07:38,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:07:38,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095787821] [2022-12-14 09:07:38,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:07:38,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:07:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:07:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1695 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1679 trivial. 0 not checked. [2022-12-14 09:07:38,912 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:07:38,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095787821] [2022-12-14 09:07:38,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095787821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:38,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:07:38,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:07:38,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089460990] [2022-12-14 09:07:38,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:38,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:07:38,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:38,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:07:38,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:07:38,913 INFO L87 Difference]: Start difference. First operand 77242 states and 105941 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 09:07:43,116 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 09:07:52,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:07:52,958 INFO L93 Difference]: Finished difference Result 77250 states and 105947 transitions. [2022-12-14 09:07:52,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:07:52,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 297 [2022-12-14 09:07:52,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:07:53,180 INFO L225 Difference]: With dead ends: 77250 [2022-12-14 09:07:53,180 INFO L226 Difference]: Without dead ends: 77248 [2022-12-14 09:07:53,208 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 09:07:53,208 INFO L413 NwaCegarLoop]: 2798 mSDtfsCounter, 3237 mSDsluCounter, 5613 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3243 SdHoareTripleChecker+Valid, 8411 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:07:53,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3243 Valid, 8411 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1592 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-12-14 09:07:53,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77248 states. [2022-12-14 09:07:57,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77248 to 77246. [2022-12-14 09:07:57,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77246 states, 45852 states have (on average 1.2775451452499347) internal successors, (58578), 48088 states have internal predecessors, (58578), 23405 states have call successors, (23405), 7989 states have call predecessors, (23405), 7986 states have return successors, (23961), 22768 states have call predecessors, (23961), 23401 states have call successors, (23961) [2022-12-14 09:07:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77246 states to 77246 states and 105944 transitions. [2022-12-14 09:07:58,001 INFO L78 Accepts]: Start accepts. Automaton has 77246 states and 105944 transitions. Word has length 297 [2022-12-14 09:07:58,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:07:58,002 INFO L495 AbstractCegarLoop]: Abstraction has 77246 states and 105944 transitions. [2022-12-14 09:07:58,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 09:07:58,002 INFO L276 IsEmpty]: Start isEmpty. Operand 77246 states and 105944 transitions. [2022-12-14 09:07:58,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-12-14 09:07:58,007 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:07:58,007 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 10, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:58,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:07:58,007 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 09:07:58,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:07:58,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1616612349, now seen corresponding path program 1 times [2022-12-14 09:07:58,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:07:58,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044959221] [2022-12-14 09:07:58,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:07:58,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:07:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:07:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1703 trivial. 0 not checked. [2022-12-14 09:07:58,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:07:58,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044959221] [2022-12-14 09:07:58,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044959221] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:07:58,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:07:58,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:07:58,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972440280] [2022-12-14 09:07:58,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:07:58,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:07:58,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:07:58,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:07:58,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:07:58,401 INFO L87 Difference]: Start difference. First operand 77246 states and 105944 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 09:08:03,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:12,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:13,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:08:13,877 INFO L93 Difference]: Finished difference Result 77254 states and 105950 transitions. [2022-12-14 09:08:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:08:13,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 298 [2022-12-14 09:08:13,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:08:14,098 INFO L225 Difference]: With dead ends: 77254 [2022-12-14 09:08:14,098 INFO L226 Difference]: Without dead ends: 77252 [2022-12-14 09:08:14,125 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 09:08:14,125 INFO L413 NwaCegarLoop]: 2798 mSDtfsCounter, 3238 mSDsluCounter, 5613 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3243 SdHoareTripleChecker+Valid, 8411 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:08:14,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3243 Valid, 8411 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1592 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-12-14 09:08:14,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77252 states. [2022-12-14 09:08:18,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77252 to 77250. [2022-12-14 09:08:18,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77250 states, 45855 states have (on average 1.2775269872423944) internal successors, (58581), 48091 states have internal predecessors, (58581), 23405 states have call successors, (23405), 7990 states have call predecessors, (23405), 7987 states have return successors, (23961), 22768 states have call predecessors, (23961), 23401 states have call successors, (23961) [2022-12-14 09:08:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77250 states to 77250 states and 105947 transitions. [2022-12-14 09:08:19,187 INFO L78 Accepts]: Start accepts. Automaton has 77250 states and 105947 transitions. Word has length 298 [2022-12-14 09:08:19,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:08:19,188 INFO L495 AbstractCegarLoop]: Abstraction has 77250 states and 105947 transitions. [2022-12-14 09:08:19,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 09:08:19,188 INFO L276 IsEmpty]: Start isEmpty. Operand 77250 states and 105947 transitions. [2022-12-14 09:08:19,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-12-14 09:08:19,194 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:08:19,194 INFO L195 NwaCegarLoop]: trace histogram [25, 19, 19, 19, 19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:08:19,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 09:08:19,195 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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 09:08:19,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:08:19,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2029183941, now seen corresponding path program 1 times [2022-12-14 09:08:19,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:08:19,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553952680] [2022-12-14 09:08:19,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:08:19,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:08:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:08:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2022-12-14 09:08:19,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:08:19,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553952680] [2022-12-14 09:08:19,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553952680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:08:19,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:08:19,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:08:19,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722006749] [2022-12-14 09:08:19,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:08:19,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:08:19,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:08:19,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:08:19,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:08:19,835 INFO L87 Difference]: Start difference. First operand 77250 states and 105947 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 09:08:23,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:25,271 WARN L539 Checker$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 09:08:27,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:29,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:39,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:08:39,073 INFO L93 Difference]: Finished difference Result 77250 states and 105947 transitions. [2022-12-14 09:08:39,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:08:39,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 301 [2022-12-14 09:08:39,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:08:39,292 INFO L225 Difference]: With dead ends: 77250 [2022-12-14 09:08:39,292 INFO L226 Difference]: Without dead ends: 77248 [2022-12-14 09:08:39,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 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 09:08:39,319 INFO L413 NwaCegarLoop]: 2839 mSDtfsCounter, 3016 mSDsluCounter, 6039 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3017 SdHoareTripleChecker+Valid, 8878 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:08:39,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3017 Valid, 8878 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1646 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2022-12-14 09:08:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77248 states. [2022-12-14 09:08:44,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77248 to 77248. [2022-12-14 09:08:44,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77248 states, 45854 states have (on average 1.2764862389322633) internal successors, (58532), 48089 states have internal predecessors, (58532), 23405 states have call successors, (23405), 7990 states have call predecessors, (23405), 7987 states have return successors, (23961), 22768 states have call predecessors, (23961), 23401 states have call successors, (23961) [2022-12-14 09:08:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77248 states to 77248 states and 105898 transitions. [2022-12-14 09:08:44,430 INFO L78 Accepts]: Start accepts. Automaton has 77248 states and 105898 transitions. Word has length 301 [2022-12-14 09:08:44,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:08:44,430 INFO L495 AbstractCegarLoop]: Abstraction has 77248 states and 105898 transitions. [2022-12-14 09:08:44,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 09:08:44,430 INFO L276 IsEmpty]: Start isEmpty. Operand 77248 states and 105898 transitions. [2022-12-14 09:08:44,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-12-14 09:08:44,437 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:08:44,437 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 11, 10, 10, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:08:44,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:08:44,437 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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 09:08:44,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:08:44,438 INFO L85 PathProgramCache]: Analyzing trace with hash 12654217, now seen corresponding path program 1 times [2022-12-14 09:08:44,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:08:44,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818739403] [2022-12-14 09:08:44,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:08:44,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:08:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:08:44,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1766 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1746 trivial. 0 not checked. [2022-12-14 09:08:44,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:08:44,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818739403] [2022-12-14 09:08:44,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818739403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:08:44,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:08:44,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:08:44,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384264599] [2022-12-14 09:08:44,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:08:44,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:08:44,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:08:44,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:08:44,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:08:44,987 INFO L87 Difference]: Start difference. First operand 77248 states and 105898 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 09:08:49,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:51,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:08:53,195 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 09:09:03,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:03,596 INFO L93 Difference]: Finished difference Result 77254 states and 105903 transitions. [2022-12-14 09:09:03,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:09:03,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 306 [2022-12-14 09:09:03,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:03,818 INFO L225 Difference]: With dead ends: 77254 [2022-12-14 09:09:03,818 INFO L226 Difference]: Without dead ends: 77250 [2022-12-14 09:09:03,845 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 09:09:03,845 INFO L413 NwaCegarLoop]: 2787 mSDtfsCounter, 3236 mSDsluCounter, 5555 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3237 SdHoareTripleChecker+Valid, 8342 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:03,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3237 Valid, 8342 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1584 Invalid, 1 Unknown, 0 Unchecked, 13.6s Time] [2022-12-14 09:09:03,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77250 states. [2022-12-14 09:09:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77250 to 77250. [2022-12-14 09:09:08,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77250 states, 45856 states have (on average 1.2764523726448012) internal successors, (58533), 48090 states have internal predecessors, (58533), 23405 states have call successors, (23405), 7991 states have call predecessors, (23405), 7987 states have return successors, (23961), 22768 states have call predecessors, (23961), 23401 states have call successors, (23961) [2022-12-14 09:09:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77250 states to 77250 states and 105899 transitions. [2022-12-14 09:09:09,254 INFO L78 Accepts]: Start accepts. Automaton has 77250 states and 105899 transitions. Word has length 306 [2022-12-14 09:09:09,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:09,255 INFO L495 AbstractCegarLoop]: Abstraction has 77250 states and 105899 transitions. [2022-12-14 09:09:09,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 09:09:09,255 INFO L276 IsEmpty]: Start isEmpty. Operand 77250 states and 105899 transitions. [2022-12-14 09:09:09,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-12-14 09:09:09,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:09,262 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 12, 11, 11, 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, 1, 1, 1, 1, 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 09:09:09,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:09:09,262 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 09:09:09,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:09,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1632568382, now seen corresponding path program 1 times [2022-12-14 09:09:09,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:09,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280192226] [2022-12-14 09:09:09,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:09,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:09,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1787 trivial. 0 not checked. [2022-12-14 09:09:09,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:09,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280192226] [2022-12-14 09:09:09,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280192226] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:09,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:09,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:09:09,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463752569] [2022-12-14 09:09:09,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:09,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:09:09,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:09,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:09:09,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:09:09,740 INFO L87 Difference]: Start difference. First operand 77250 states and 105899 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 09:09:14,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:09:16,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:09:18,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:09:28,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:28,369 INFO L93 Difference]: Finished difference Result 77250 states and 105899 transitions. [2022-12-14 09:09:28,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:09:28,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 312 [2022-12-14 09:09:28,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:28,586 INFO L225 Difference]: With dead ends: 77250 [2022-12-14 09:09:28,586 INFO L226 Difference]: Without dead ends: 76819 [2022-12-14 09:09:28,612 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 09:09:28,613 INFO L413 NwaCegarLoop]: 2785 mSDtfsCounter, 3232 mSDsluCounter, 5554 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3232 SdHoareTripleChecker+Valid, 8339 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:28,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3232 Valid, 8339 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1579 Invalid, 1 Unknown, 0 Unchecked, 13.1s Time] [2022-12-14 09:09:28,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76819 states. [2022-12-14 09:09:33,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76819 to 76819. [2022-12-14 09:09:33,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76819 states, 45756 states have (on average 1.2739094326427136) internal successors, (58289), 47846 states have internal predecessors, (58289), 23102 states have call successors, (23102), 7930 states have call predecessors, (23102), 7960 states have return successors, (23662), 22642 states have call predecessors, (23662), 23102 states have call successors, (23662) [2022-12-14 09:09:34,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76819 states to 76819 states and 105053 transitions. [2022-12-14 09:09:34,234 INFO L78 Accepts]: Start accepts. Automaton has 76819 states and 105053 transitions. Word has length 312 [2022-12-14 09:09:34,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:34,235 INFO L495 AbstractCegarLoop]: Abstraction has 76819 states and 105053 transitions. [2022-12-14 09:09:34,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 09:09:34,235 INFO L276 IsEmpty]: Start isEmpty. Operand 76819 states and 105053 transitions. [2022-12-14 09:09:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-12-14 09:09:34,245 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:34,245 INFO L195 NwaCegarLoop]: trace histogram [25, 19, 19, 19, 19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:09:34,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 09:09:34,246 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:09:34,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:34,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1703979227, now seen corresponding path program 1 times [2022-12-14 09:09:34,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:34,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457770879] [2022-12-14 09:09:34,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:34,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:34,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1698 trivial. 0 not checked. [2022-12-14 09:09:34,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:34,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457770879] [2022-12-14 09:09:34,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457770879] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:34,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:34,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:09:34,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812071712] [2022-12-14 09:09:34,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:34,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:09:34,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:34,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:09:34,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:09:34,746 INFO L87 Difference]: Start difference. First operand 76819 states and 105053 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) [2022-12-14 09:09:39,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:09:50,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:09:53,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:53,186 INFO L93 Difference]: Finished difference Result 76821 states and 105054 transitions. [2022-12-14 09:09:53,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:09:53,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) Word has length 321 [2022-12-14 09:09:53,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:53,433 INFO L225 Difference]: With dead ends: 76821 [2022-12-14 09:09:53,433 INFO L226 Difference]: Without dead ends: 76819 [2022-12-14 09:09:53,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 09:09:53,459 INFO L413 NwaCegarLoop]: 2916 mSDtfsCounter, 426 mSDsluCounter, 8409 mSDsCounter, 0 mSdLazyCounter, 2215 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 11325 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:53,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 11325 Invalid, 2217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2215 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2022-12-14 09:09:53,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76819 states. [2022-12-14 09:09:59,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76819 to 76819. [2022-12-14 09:09:59,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76819 states, 45756 states have (on average 1.2728603898942215) internal successors, (58241), 47846 states have internal predecessors, (58241), 23102 states have call successors, (23102), 7930 states have call predecessors, (23102), 7960 states have return successors, (23662), 22642 states have call predecessors, (23662), 23102 states have call successors, (23662) [2022-12-14 09:09:59,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76819 states to 76819 states and 105005 transitions. [2022-12-14 09:09:59,389 INFO L78 Accepts]: Start accepts. Automaton has 76819 states and 105005 transitions. Word has length 321 [2022-12-14 09:09:59,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:59,390 INFO L495 AbstractCegarLoop]: Abstraction has 76819 states and 105005 transitions. [2022-12-14 09:09:59,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (36), 2 states have call predecessors, (36), 1 states have call successors, (36) [2022-12-14 09:09:59,390 INFO L276 IsEmpty]: Start isEmpty. Operand 76819 states and 105005 transitions. [2022-12-14 09:09:59,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-12-14 09:09:59,417 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:59,417 INFO L195 NwaCegarLoop]: trace histogram [26, 19, 19, 19, 19, 19, 19, 6, 6, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:09:59,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 09:09:59,417 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 09:09:59,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:59,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1059865059, now seen corresponding path program 1 times [2022-12-14 09:09:59,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:59,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745992387] [2022-12-14 09:09:59,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:59,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:59,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1775 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2022-12-14 09:09:59,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:59,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745992387] [2022-12-14 09:09:59,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745992387] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:59,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:59,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:09:59,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831103391] [2022-12-14 09:09:59,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:59,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:09:59,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:59,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:09:59,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:09:59,939 INFO L87 Difference]: Start difference. First operand 76819 states and 105005 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 09:10:06,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:10:09,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 09:10:17,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:10:17,839 INFO L93 Difference]: Finished difference Result 153833 states and 210280 transitions. [2022-12-14 09:10:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:10:17,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 358 [2022-12-14 09:10:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:10:18,107 INFO L225 Difference]: With dead ends: 153833 [2022-12-14 09:10:18,107 INFO L226 Difference]: Without dead ends: 77099 [2022-12-14 09:10:18,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:10:18,320 INFO L413 NwaCegarLoop]: 2741 mSDtfsCounter, 19 mSDsluCounter, 5474 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 8215 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-12-14 09:10:18,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 8215 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1566 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-12-14 09:10:18,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77099 states. [2022-12-14 09:10:23,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77099 to 77099. [2022-12-14 09:10:23,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77099 states, 45956 states have (on average 1.272456262511968) internal successors, (58477), 48046 states have internal predecessors, (58477), 23162 states have call successors, (23162), 7950 states have call predecessors, (23162), 7980 states have return successors, (23698), 22702 states have call predecessors, (23698), 23162 states have call successors, (23698) [2022-12-14 09:10:24,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77099 states to 77099 states and 105337 transitions. [2022-12-14 09:10:24,045 INFO L78 Accepts]: Start accepts. Automaton has 77099 states and 105337 transitions. Word has length 358 [2022-12-14 09:10:24,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:10:24,046 INFO L495 AbstractCegarLoop]: Abstraction has 77099 states and 105337 transitions. [2022-12-14 09:10:24,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 09:10:24,046 INFO L276 IsEmpty]: Start isEmpty. Operand 77099 states and 105337 transitions. [2022-12-14 09:10:24,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-12-14 09:10:24,074 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:10:24,074 INFO L195 NwaCegarLoop]: trace histogram [25, 19, 19, 19, 19, 19, 19, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:10:24,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 09:10:24,074 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:10:24,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:10:24,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1948804835, now seen corresponding path program 1 times [2022-12-14 09:10:24,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:10:24,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122025386] [2022-12-14 09:10:24,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:10:24,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:10:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:10:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1689 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1674 trivial. 0 not checked. [2022-12-14 09:10:24,464 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:10:24,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122025386] [2022-12-14 09:10:24,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122025386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:10:24,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:10:24,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:10:24,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376272029] [2022-12-14 09:10:24,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:10:24,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:10:24,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:10:24,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:10:24,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:10:24,466 INFO L87 Difference]: Start difference. First operand 77099 states and 105337 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-12-14 09:10:30,520 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 09:10:41,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:10:41,269 INFO L93 Difference]: Finished difference Result 174561 states and 238256 transitions. [2022-12-14 09:10:41,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:10:41,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 378 [2022-12-14 09:10:41,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:10:41,609 INFO L225 Difference]: With dead ends: 174561 [2022-12-14 09:10:41,609 INFO L226 Difference]: Without dead ends: 97547 [2022-12-14 09:10:41,778 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 09:10:41,779 INFO L413 NwaCegarLoop]: 4056 mSDtfsCounter, 2484 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2486 SdHoareTripleChecker+Valid, 6755 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:10:41,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2486 Valid, 6755 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1283 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2022-12-14 09:10:41,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97547 states. [2022-12-14 09:10:48,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97547 to 97531. [2022-12-14 09:10:48,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97531 states, 58168 states have (on average 1.2708190070141658) internal successors, (73921), 60794 states have internal predecessors, (73921), 29126 states have call successors, (29126), 10190 states have call predecessors, (29126), 10236 states have return successors, (29742), 28570 states have call predecessors, (29742), 29126 states have call successors, (29742) [2022-12-14 09:10:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97531 states to 97531 states and 132789 transitions. [2022-12-14 09:10:49,102 INFO L78 Accepts]: Start accepts. Automaton has 97531 states and 132789 transitions. Word has length 378 [2022-12-14 09:10:49,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:10:49,103 INFO L495 AbstractCegarLoop]: Abstraction has 97531 states and 132789 transitions. [2022-12-14 09:10:49,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-12-14 09:10:49,103 INFO L276 IsEmpty]: Start isEmpty. Operand 97531 states and 132789 transitions. [2022-12-14 09:10:49,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2022-12-14 09:10:49,145 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:10:49,145 INFO L195 NwaCegarLoop]: trace histogram [28, 19, 19, 19, 19, 19, 19, 10, 10, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:10:49,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 09:10:49,146 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 09:10:49,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:10:49,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1537944116, now seen corresponding path program 1 times [2022-12-14 09:10:49,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:10:49,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838508996] [2022-12-14 09:10:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:10:49,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:10:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:10:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1999 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1999 trivial. 0 not checked. [2022-12-14 09:10:49,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:10:49,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838508996] [2022-12-14 09:10:49,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838508996] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:10:49,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:10:49,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:10:49,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823365194] [2022-12-14 09:10:49,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:10:49,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:10:49,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:10:49,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:10:49,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:10:49,872 INFO L87 Difference]: Start difference. First operand 97531 states and 132789 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (63), 3 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 09:10:56,948 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 09:11:06,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:11:07,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:11:10,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:11:10,541 INFO L93 Difference]: Finished difference Result 97531 states and 132789 transitions. [2022-12-14 09:11:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:11:10,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (63), 3 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 455 [2022-12-14 09:11:10,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:11:10,546 INFO L225 Difference]: With dead ends: 97531 [2022-12-14 09:11:10,546 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 09:11:10,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 09:11:10,719 INFO L413 NwaCegarLoop]: 2905 mSDtfsCounter, 420 mSDsluCounter, 8363 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 11268 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:11:10,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 11268 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2206 Invalid, 1 Unknown, 0 Unchecked, 14.4s Time] [2022-12-14 09:11:10,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 09:11:10,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 09:11:10,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:11:10,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 09:11:10,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 455 [2022-12-14 09:11:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:11:10,731 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 09:11:10,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (63), 3 states have call predecessors, (63), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 09:11:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 09:11:10,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 09:11:10,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-14 09:11:10,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-12-14 09:11:10,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-14 09:11:10,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 09:11:10,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.