./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/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 ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 --- 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 14:49:41,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:49:41,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:49:41,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:49:41,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:49:41,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:49:41,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:49:41,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:49:41,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:49:41,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:49:41,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:49:41,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:49:41,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:49:41,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:49:41,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:49:41,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:49:41,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:49:41,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:49:41,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:49:41,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:49:41,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:49:41,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:49:41,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:49:41,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:49:41,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:49:41,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:49:41,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:49:41,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:49:41,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:49:41,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:49:41,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:49:41,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:49:41,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:49:41,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:49:41,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:49:41,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:49:41,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:49:41,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:49:41,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:49:41,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:49:41,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:49:41,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:49:41,504 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:49:41,504 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:49:41,504 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:49:41,504 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:49:41,505 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:49:41,505 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:49:41,506 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:49:41,506 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:49:41,506 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:49:41,506 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:49:41,506 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:49:41,507 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:49:41,507 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:49:41,507 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:49:41,507 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:49:41,507 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:49:41,508 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:49:41,508 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:49:41,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:49:41,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:49:41,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:49:41,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:49:41,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:49:41,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:49:41,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:49:41,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:49:41,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:49:41,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:49:41,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:49:41,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:49:41,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:49:41,511 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:49:41,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:49:41,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:49:41,511 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:49:41,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:49:41,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:49:41,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:49:41,512 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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce7b7e06b36a72b3de911fb70c1b245fd97c856ddcef7fa1f63b6ddc09812498 [2022-12-14 14:49:41,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:49:41,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:49:41,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:49:41,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:49:41,706 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:49:41,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-12-14 14:49:44,318 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:49:44,791 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:49:44,792 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-12-14 14:49:44,823 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh/data/550d960d4/faac5d3afc9a4306a9d63a20cf1565b3/FLAGc120ce49c [2022-12-14 14:49:44,834 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh/data/550d960d4/faac5d3afc9a4306a9d63a20cf1565b3 [2022-12-14 14:49:44,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:49:44,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:49:44,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:49:44,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:49:44,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:49:44,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:49:44" (1/1) ... [2022-12-14 14:49:44,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76afb5da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:44, skipping insertion in model container [2022-12-14 14:49:44,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:49:44" (1/1) ... [2022-12-14 14:49:44,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:49:44,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:49:45,312 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 14:49:45,461 WARN L623 FunctionHandler]: Unknown extern function __bitmap_weight [2022-12-14 14:49:45,808 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:49:45,816 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:49:45,855 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 14:49:45,888 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 14:49:45,920 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:49:46,019 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:49:46,086 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 14:49:46,137 WARN L623 FunctionHandler]: Unknown extern function __get_page_tail [2022-12-14 14:49:46,138 WARN L623 FunctionHandler]: Unknown extern function dump_page [2022-12-14 14:49:46,169 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:46,235 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 14:49:46,242 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 14:49:46,248 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 14:49:46,255 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 14:49:46,281 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 14:49:46,286 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:49:46,288 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 14:49:46,294 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 14:49:46,326 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:46,382 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 14:49:46,410 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-12-14 14:49:46,480 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 14:49:46,481 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 14:49:46,491 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:49:46,491 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:46,525 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 14:49:46,530 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 14:49:46,623 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 14:49:46,629 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 14:49:46,634 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 14:49:46,639 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-12-14 14:49:46,644 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 14:49:46,649 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 14:49:46,734 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 14:49:46,764 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 14:49:46,896 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:46,902 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:46,919 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 14:49:46,919 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:49:46,926 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:49:46,944 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:49:46,951 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:46,952 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:49:46,965 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:46,965 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:46,966 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:49:46,973 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:46,974 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:46,981 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-12-14 14:49:46,981 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:46,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:46,982 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 14:49:46,983 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-14 14:49:46,997 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:46,998 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:46,999 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 14:49:47,006 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,007 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 14:49:47,007 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:49:47,008 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,020 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,020 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,021 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,064 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:49:47,077 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:49:47,084 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,090 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,098 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,099 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 14:49:47,099 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:49:47,099 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,111 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,111 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,112 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,112 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,112 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,112 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,113 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,113 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,113 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,114 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,114 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,114 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,115 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,115 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,121 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,122 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,124 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,138 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,147 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,179 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1997 [2022-12-14 14:49:47,180 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,181 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2032 [2022-12-14 14:49:47,182 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:49:47,185 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,186 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2106 [2022-12-14 14:49:47,187 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2125 [2022-12-14 14:49:47,187 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:49:47,188 WARN L623 FunctionHandler]: Unknown extern function csum_partial [2022-12-14 14:49:47,188 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2142 [2022-12-14 14:49:47,189 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 14:49:47,195 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:49:47,207 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,216 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,219 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:49:47,221 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,228 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,254 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,254 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,255 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,255 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,256 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,257 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,257 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,290 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,291 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 14:49:47,293 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2843 [2022-12-14 14:49:47,294 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,319 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 14:49:47,337 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:47,338 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:47,339 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,371 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,371 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 14:49:47,383 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 14:49:47,383 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,385 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,392 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:47,392 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,393 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:47,393 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,407 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,409 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,409 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,410 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,416 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 14:49:47,421 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:47,421 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 14:49:47,427 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:47,427 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:47,427 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:47,427 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,439 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 14:49:47,445 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 14:49:47,487 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 14:49:47,487 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 14:49:47,495 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,495 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:47,512 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:47,513 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:47,513 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:47,514 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:47,519 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:47,519 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:47,541 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:47,542 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:47,547 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:49:47,548 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:49:47,548 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:49:47,614 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:47,615 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:47,627 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,627 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 14:49:47,627 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:47,627 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:47,628 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 14:49:47,628 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:47,628 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 14:49:47,628 WARN L623 FunctionHandler]: Unknown extern function pci_try_set_mwi [2022-12-14 14:49:47,629 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:47,629 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:47,629 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:47,630 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:47,631 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:47,631 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:47,631 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:47,631 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:47,632 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:47,632 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:47,632 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:49:47,633 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 14:49:47,633 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 14:49:47,633 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 14:49:47,648 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:49:47,649 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 14:49:47,649 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:47,650 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 14:49:47,650 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:47,652 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:47,653 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,654 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:47,655 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:47,655 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 14:49:47,655 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 14:49:47,655 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:49:47,662 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:49:47,663 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:47,663 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 14:49:47,663 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:47,663 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 14:49:47,664 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 14:49:47,664 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:49:47,670 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:47,670 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 14:49:47,671 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:47,677 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:47,678 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:47,678 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 14:49:47,678 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:47,961 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,961 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,961 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,961 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,961 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,962 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,962 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,962 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,962 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,962 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,962 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,962 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:47,965 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 14:49:47,966 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 14:49:47,967 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:49:47,969 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:49:47,969 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:49:47,976 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:49:47,977 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 14:49:47,980 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:49:47,980 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:49:47,981 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 14:49:47,982 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 14:49:47,982 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 14:49:47,983 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,983 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,983 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 14:49:47,983 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,984 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,984 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,984 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 14:49:47,984 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,985 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,985 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,985 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 14:49:47,985 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,986 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,986 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,986 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,986 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,986 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,986 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,987 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,987 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 14:49:47,987 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 14:49:47,987 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:49:47,987 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 14:49:47,988 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:49:47,988 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,988 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:47,988 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 14:49:47,988 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 14:49:48,042 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 14:49:48,043 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:49:48,051 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:49:48,828 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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2022-12-14 14:49:48,831 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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2022-12-14 14:49:48,831 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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2022-12-14 14:49:48,832 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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2022-12-14 14:49:48,837 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:48,838 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:48,838 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:48,839 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:48,850 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:48,852 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:48,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:49:48,881 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:49:48,965 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 14:49:48,968 WARN L623 FunctionHandler]: Unknown extern function __bitmap_weight [2022-12-14 14:49:48,970 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:49:48,971 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:49:48,972 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 14:49:48,972 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 14:49:48,973 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:49:48,974 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:49:48,975 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 14:49:48,977 WARN L623 FunctionHandler]: Unknown extern function __get_page_tail [2022-12-14 14:49:48,977 WARN L623 FunctionHandler]: Unknown extern function dump_page [2022-12-14 14:49:48,978 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:48,982 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 14:49:48,983 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 14:49:48,984 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-12-14 14:49:48,985 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_device [2022-12-14 14:49:48,987 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 14:49:48,987 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:49:48,988 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 14:49:48,988 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 14:49:48,991 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:48,997 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 14:49:48,998 WARN L623 FunctionHandler]: Unknown extern function skb_pad [2022-12-14 14:49:49,000 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 14:49:49,000 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 14:49:49,001 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:49:49,001 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,002 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 14:49:49,003 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 14:49:49,003 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-12-14 14:49:49,005 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 14:49:49,007 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_dword [2022-12-14 14:49:49,008 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-12-14 14:49:49,010 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 14:49:49,011 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 14:49:49,015 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 14:49:49,016 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 14:49:49,022 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,023 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,024 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 14:49:49,024 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:49:49,025 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:49:49,027 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:49:49,029 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,030 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 14:49:49,032 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,032 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,032 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:49:49,034 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,035 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,036 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-12-14 14:49:49,036 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,036 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,037 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 14:49:49,038 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-14 14:49:49,040 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,041 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,041 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 14:49:49,043 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,043 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 14:49:49,044 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:49:49,044 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,046 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,046 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,047 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,055 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:49:49,056 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:49:49,058 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,058 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,060 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,060 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 14:49:49,061 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:49:49,061 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,062 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,062 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,062 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,063 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,063 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,063 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,063 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,063 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,064 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,064 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,064 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,064 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,064 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,065 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,065 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,066 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,067 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,068 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,070 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,073 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_1997 [2022-12-14 14:49:49,074 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,075 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2032 [2022-12-14 14:49:49,075 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:49:49,077 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,078 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2106 [2022-12-14 14:49:49,078 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2125 [2022-12-14 14:49:49,079 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:49:49,079 WARN L623 FunctionHandler]: Unknown extern function csum_partial [2022-12-14 14:49:49,079 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2142 [2022-12-14 14:49:49,079 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 14:49:49,081 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:49:49,082 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,084 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,086 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 14:49:49,088 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,088 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,091 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,091 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,091 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,091 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,092 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,092 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,092 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,094 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,095 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 14:49:49,097 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_2843 [2022-12-14 14:49:49,098 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,101 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 14:49:49,103 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,103 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,104 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,111 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,111 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 14:49:49,113 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 14:49:49,113 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,114 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,115 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,116 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,116 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,116 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,119 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,121 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,121 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,121 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,122 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 14:49:49,122 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,123 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 14:49:49,123 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,123 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,124 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,124 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,125 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 14:49:49,126 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-12-14 14:49:49,130 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 14:49:49,130 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 14:49:49,133 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,133 WARN L623 FunctionHandler]: Unknown extern function netdev_printk [2022-12-14 14:49:49,135 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:49,136 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:49:49,136 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:49,136 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:49,137 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:49,137 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:49,142 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,143 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:49:49,143 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:49:49,144 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:49:49,144 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:49:49,150 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:49,151 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:49,153 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,153 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 14:49:49,153 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:49,154 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:49,154 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 14:49:49,155 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:49,155 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 14:49:49,155 WARN L623 FunctionHandler]: Unknown extern function pci_try_set_mwi [2022-12-14 14:49:49,155 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:49:49,156 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:49,156 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:49,156 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:49,157 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:49,157 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:49,157 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:49,157 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:49,158 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:49,158 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:49:49,158 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:49:49,158 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 14:49:49,158 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 14:49:49,159 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 14:49:49,159 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:49:49,159 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 14:49:49,159 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:49,160 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 14:49:49,160 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:49,161 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:49:49,161 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,162 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:49,163 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:49,163 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 14:49:49,163 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 14:49:49,163 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:49:49,164 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:49:49,164 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:49,164 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 14:49:49,164 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:49,165 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 14:49:49,165 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 14:49:49,165 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:49:49,165 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:49,165 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 14:49:49,166 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:49,166 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:49:49,166 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:49:49,166 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 14:49:49,166 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:49:49,184 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,184 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,184 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,184 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,184 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,185 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,185 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,185 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,185 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,185 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,185 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,186 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,188 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 14:49:49,188 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 14:49:49,190 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:49:49,192 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:49:49,192 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:49:49,199 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:49:49,200 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 14:49:49,205 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:49:49,205 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:49:49,208 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 14:49:49,208 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 14:49:49,209 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 14:49:49,209 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,209 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,210 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 14:49:49,210 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,210 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,210 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,211 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 14:49:49,211 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,211 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,212 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,212 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 14:49:49,212 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,212 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,213 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,213 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,213 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,213 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,213 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,214 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,214 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 14:49:49,214 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 14:49:49,214 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:49:49,215 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 14:49:49,215 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:49:49,215 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,215 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:49:49,216 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 14:49:49,216 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 14:49:49,218 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 14:49:49,218 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:49:49,218 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:49:49,235 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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493165,493178] [2022-12-14 14:49:49,236 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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493334,493347] [2022-12-14 14:49:49,236 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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493501,493514] [2022-12-14 14:49:49,236 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_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[493669,493682] [2022-12-14 14:49:49,237 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,238 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,238 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,239 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,241 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,242 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:49:49,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:49:49,388 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:49:49,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49 WrapperNode [2022-12-14 14:49:49,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:49:49,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:49:49,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:49:49,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:49:49,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:49,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:49,679 INFO L138 Inliner]: procedures = 688, calls = 4282, calls flagged for inlining = 342, calls inlined = 319, statements flattened = 10347 [2022-12-14 14:49:49,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:49:49,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:49:49,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:49:49,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:49:49,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:49,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:49,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:49,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:49,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:49,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:49,996 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:50,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:50,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:49:50,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:49:50,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:49:50,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:49:50,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (1/1) ... [2022-12-14 14:49:50,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:49:50,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:49:50,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:49:50,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16f1a135-d1ca-4d95-bf94-cdb90d8b8b99/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:49:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 14:49:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 14:49:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_read [2022-12-14 14:49:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_read [2022-12-14 14:49:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure cas_pcs_link_check [2022-12-14 14:49:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_pcs_link_check [2022-12-14 14:49:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 14:49:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 14:49:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 14:49:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 14:49:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-12-14 14:49:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-12-14 14:49:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-12-14 14:49:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-12-14 14:49:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 14:49:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 14:49:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mii_link_check [2022-12-14 14:49:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mii_link_check [2022-12-14 14:49:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure cas_calc_tabort [2022-12-14 14:49:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_calc_tabort [2022-12-14 14:49:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-12-14 14:49:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-12-14 14:49:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2022-12-14 14:49:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2022-12-14 14:49:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 14:49:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 14:49:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-12-14 14:49:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-12-14 14:49:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 14:49:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 14:49:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-12-14 14:49:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-12-14 14:49:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure cas_lock_tx [2022-12-14 14:49:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_lock_tx [2022-12-14 14:49:50,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-12-14 14:49:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-12-14 14:49:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 14:49:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 14:49:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure cas_disable_irq [2022-12-14 14:49:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_disable_irq [2022-12-14 14:49:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure cas_free_rxds [2022-12-14 14:49:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_free_rxds [2022-12-14 14:49:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2022-12-14 14:49:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2022-12-14 14:49:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure cas_open [2022-12-14 14:49:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_open [2022-12-14 14:49:50,140 INFO L130 BoogieDeclarations]: Found specification of procedure cas_interrupt [2022-12-14 14:49:50,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_interrupt [2022-12-14 14:49:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_tiny_free [2022-12-14 14:49:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_tiny_free [2022-12-14 14:49:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-12-14 14:49:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-12-14 14:49:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_map [2022-12-14 14:49:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_map [2022-12-14 14:49:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_init [2022-12-14 14:49:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_init [2022-12-14 14:49:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-12-14 14:49:50,141 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-12-14 14:49:50,141 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-12-14 14:49:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-12-14 14:49:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 14:49:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 14:49:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 14:49:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 14:49:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure cas_enable_irq [2022-12-14 14:49:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_enable_irq [2022-12-14 14:49:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 14:49:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 14:49:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 14:49:50,142 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 14:49:50,142 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_dequeue [2022-12-14 14:49:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_dequeue [2022-12-14 14:49:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-12-14 14:49:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-12-14 14:49:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 14:49:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 14:49:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 14:49:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 14:49:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 14:49:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 14:49:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-12-14 14:49:50,143 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-12-14 14:49:50,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:49:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2022-12-14 14:49:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2022-12-14 14:49:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-12-14 14:49:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-12-14 14:49:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_multicast [2022-12-14 14:49:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_multicast [2022-12-14 14:49:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-14 14:49:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-14 14:49:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-12-14 14:49:50,144 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-12-14 14:49:50,144 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_free [2022-12-14 14:49:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_free [2022-12-14 14:49:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure cas_tx_timeout [2022-12-14 14:49:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_tx_timeout [2022-12-14 14:49:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 14:49:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 14:49:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_pcs_link_mode [2022-12-14 14:49:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_pcs_link_mode [2022-12-14 14:49:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 14:49:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 14:49:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 14:49:50,145 INFO L130 BoogieDeclarations]: Found specification of procedure cas_close [2022-12-14 14:49:50,145 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_close [2022-12-14 14:49:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_swap [2022-12-14 14:49:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_swap [2022-12-14 14:49:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 14:49:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 14:49:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure cas_netpoll [2022-12-14 14:49:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_netpoll [2022-12-14 14:49:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure cas_hard_reset [2022-12-14 14:49:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_hard_reset [2022-12-14 14:49:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 14:49:50,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 14:49:50,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 14:49:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 14:49:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 14:49:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure cas_rxc_init [2022-12-14 14:49:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_rxc_init [2022-12-14 14:49:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:49:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 14:49:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 14:49:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clear_mac_err [2022-12-14 14:49:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clear_mac_err [2022-12-14 14:49:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 14:49:50,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 14:49:50,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 14:49:50,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 14:49:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 14:49:50,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 14:49:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-12-14 14:49:50,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-12-14 14:49:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure cas_remove_one [2022-12-14 14:49:50,148 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_remove_one [2022-12-14 14:49:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_NOT_ARG_SIGN [2022-12-14 14:49:50,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_NOT_ARG_SIGN [2022-12-14 14:49:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 14:49:50,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 14:49:50,148 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 14:49:50,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 14:49:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 14:49:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 14:49:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-12-14 14:49:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-12-14 14:49:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:49:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 14:49:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 14:49:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 14:49:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 14:49:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-12-14 14:49:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-12-14 14:49:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:49:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_init [2022-12-14 14:49:50,149 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_init [2022-12-14 14:49:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 14:49:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 14:49:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 14:49:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 14:49:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:49:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 14:49:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 14:49:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 14:49:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure cas_set_link_modes [2022-12-14 14:49:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_set_link_modes [2022-12-14 14:49:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure cas_read_mii_link_mode [2022-12-14 14:49:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_read_mii_link_mode [2022-12-14 14:49:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-12-14 14:49:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-12-14 14:49:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-12-14 14:49:50,150 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-12-14 14:49:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-12-14 14:49:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-12-14 14:49:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-12-14 14:49:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-12-14 14:49:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-12-14 14:49:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-12-14 14:49:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 14:49:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 14:49:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 14:49:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 14:49:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-14 14:49:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-14 14:49:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 14:49:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 14:49:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure csum_unfold [2022-12-14 14:49:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_unfold [2022-12-14 14:49:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 14:49:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 14:49:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure cas_entropy_gather [2022-12-14 14:49:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_entropy_gather [2022-12-14 14:49:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure cas_resume [2022-12-14 14:49:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_resume [2022-12-14 14:49:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:49:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:49:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_alloc [2022-12-14 14:49:50,152 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_alloc [2022-12-14 14:49:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 14:49:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 14:49:50,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 14:49:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 14:49:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 14:49:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 14:49:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 14:49:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 14:49:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mif_poll [2022-12-14 14:49:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mif_poll [2022-12-14 14:49:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 14:49:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 14:49:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure cas_unlock_tx [2022-12-14 14:49:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_unlock_tx [2022-12-14 14:49:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 14:49:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 14:49:50,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2022-12-14 14:49:50,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2022-12-14 14:49:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice [2022-12-14 14:49:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice [2022-12-14 14:49:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_135 [2022-12-14 14:49:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_135 [2022-12-14 14:49:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-12-14 14:49:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-12-14 14:49:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-12-14 14:49:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-12-14 14:49:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 14:49:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 14:49:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 14:49:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 14:49:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 14:49:50,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 14:49:50,154 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-12-14 14:49:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-12-14 14:49:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure tx_tiny_buf [2022-12-14 14:49:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_tiny_buf [2022-12-14 14:49:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure cas_mac_reset [2022-12-14 14:49:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_mac_reset [2022-12-14 14:49:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_cas [2022-12-14 14:49:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_cas [2022-12-14 14:49:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:49:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 14:49:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 14:49:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_set_page [2022-12-14 14:49:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_set_page [2022-12-14 14:49:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:49:50,155 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_regs_len [2022-12-14 14:49:50,155 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_regs_len [2022-12-14 14:49:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure cas_reset [2022-12-14 14:49:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_reset [2022-12-14 14:49:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_NOT_ARG_SIGN [2022-12-14 14:49:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_NOT_ARG_SIGN [2022-12-14 14:49:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-12-14 14:49:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-12-14 14:49:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_page [2022-12-14 14:49:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_page [2022-12-14 14:49:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:49:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-12-14 14:49:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-12-14 14:49:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure cas_nway_reset [2022-12-14 14:49:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_nway_reset [2022-12-14 14:49:50,156 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 14:49:50,156 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 14:49:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 14:49:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 14:49:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 14:49:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 14:49:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure cas_setup_multicast [2022-12-14 14:49:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_setup_multicast [2022-12-14 14:49:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_powerdown [2022-12-14 14:49:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_powerdown [2022-12-14 14:49:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2022-12-14 14:49:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2022-12-14 14:49:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-12-14 14:49:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-12-14 14:49:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure cas_vpd_match [2022-12-14 14:49:50,157 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_vpd_match [2022-12-14 14:49:50,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_83 [2022-12-14 14:49:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_83 [2022-12-14 14:49:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2022-12-14 14:49:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2022-12-14 14:49:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-12-14 14:49:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-12-14 14:49:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-12-14 14:49:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-12-14 14:49:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 14:49:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 14:49:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure page_count [2022-12-14 14:49:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure page_count [2022-12-14 14:49:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 14:49:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 14:49:50,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2022-12-14 14:49:50,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2022-12-14 14:49:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure cas_shutdown [2022-12-14 14:49:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_shutdown [2022-12-14 14:49:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure cas_begin_auto_negotiation [2022-12-14 14:49:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_begin_auto_negotiation [2022-12-14 14:49:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-12-14 14:49:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-12-14 14:49:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 14:49:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 14:49:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure cas_write_txd [2022-12-14 14:49:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_write_txd [2022-12-14 14:49:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 14:49:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 14:49:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_frag_ref [2022-12-14 14:49:50,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_frag_ref [2022-12-14 14:49:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:49:50,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 14:49:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 14:49:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2022-12-14 14:49:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2022-12-14 14:49:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2022-12-14 14:49:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2022-12-14 14:49:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_79 [2022-12-14 14:49:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_79 [2022-12-14 14:49:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-12-14 14:49:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-12-14 14:49:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure cas_init_hw [2022-12-14 14:49:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_init_hw [2022-12-14 14:49:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure cas_clean_rings [2022-12-14 14:49:50,160 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_clean_rings [2022-12-14 14:49:50,160 INFO L130 BoogieDeclarations]: Found specification of procedure cas_page_free [2022-12-14 14:49:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_page_free [2022-12-14 14:49:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-12-14 14:49:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-12-14 14:49:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure cas_phy_write [2022-12-14 14:49:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_phy_write [2022-12-14 14:49:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 14:49:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 14:49:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-12-14 14:49:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-12-14 14:49:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-12-14 14:49:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-12-14 14:49:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure cas_spare_recover [2022-12-14 14:49:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_spare_recover [2022-12-14 14:49:50,161 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-12-14 14:49:50,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-12-14 14:49:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 14:49:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 14:49:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure cas_get_stats [2022-12-14 14:49:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_get_stats [2022-12-14 14:49:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 14:49:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 14:49:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-12-14 14:49:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-12-14 14:49:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:49:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 14:49:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 14:49:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2022-12-14 14:49:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2022-12-14 14:49:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-12-14 14:49:50,162 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-12-14 14:49:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2022-12-14 14:49:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2022-12-14 14:49:51,008 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:49:51,011 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:49:51,306 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 14:53:43,899 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 14:53:44,089 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:53:47,685 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:53:47,685 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 14:53:47,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:53:47 BoogieIcfgContainer [2022-12-14 14:53:47,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:53:47,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:53:47,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:53:47,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:53:47,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:49:44" (1/3) ... [2022-12-14 14:53:47,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c89002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:53:47, skipping insertion in model container [2022-12-14 14:53:47,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:49:49" (2/3) ... [2022-12-14 14:53:47,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c89002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:53:47, skipping insertion in model container [2022-12-14 14:53:47,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:53:47" (3/3) ... [2022-12-14 14:53:47,695 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2022-12-14 14:53:47,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:53:47,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 14:53:47,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:53:47,789 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;@81aaf45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:53:47,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 14:53:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 2916 states, 1656 states have (on average 1.2765700483091786) internal successors, (2114), 1726 states have internal predecessors, (2114), 1091 states have call successors, (1091), 168 states have call predecessors, (1091), 167 states have return successors, (1086), 1074 states have call predecessors, (1086), 1086 states have call successors, (1086) [2022-12-14 14:53:47,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-14 14:53:47,808 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:53:47,809 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:47,809 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 14:53:47,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:53:47,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1859912786, now seen corresponding path program 1 times [2022-12-14 14:53:47,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:53:47,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991494347] [2022-12-14 14:53:47,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:53:47,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:53:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:53:48,943 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-12-14 14:53:48,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:53:48,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991494347] [2022-12-14 14:53:48,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991494347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:53:48,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:53:48,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:53:48,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011730390] [2022-12-14 14:53:48,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:53:48,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:53:48,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:53:48,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:53:48,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:53:48,976 INFO L87 Difference]: Start difference. First operand has 2916 states, 1656 states have (on average 1.2765700483091786) internal successors, (2114), 1726 states have internal predecessors, (2114), 1091 states have call successors, (1091), 168 states have call predecessors, (1091), 167 states have return successors, (1086), 1074 states have call predecessors, (1086), 1086 states have call successors, (1086) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:53:51,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:53:57,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:53:57,120 INFO L93 Difference]: Finished difference Result 8626 states and 13064 transitions. [2022-12-14 14:53:57,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:53:57,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 137 [2022-12-14 14:53:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:53:57,173 INFO L225 Difference]: With dead ends: 8626 [2022-12-14 14:53:57,173 INFO L226 Difference]: Without dead ends: 5725 [2022-12-14 14:53:57,191 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 14:53:57,193 INFO L413 NwaCegarLoop]: 4891 mSDtfsCounter, 4172 mSDsluCounter, 3814 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4172 SdHoareTripleChecker+Valid, 8705 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:53:57,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4172 Valid, 8705 Invalid, 886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 882 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-12-14 14:53:57,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5725 states. [2022-12-14 14:53:57,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5725 to 5721. [2022-12-14 14:53:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5721 states, 3261 states have (on average 1.2744556884391292) internal successors, (4156), 3397 states have internal predecessors, (4156), 2126 states have call successors, (2126), 332 states have call predecessors, (2126), 331 states have return successors, (2123), 2099 states have call predecessors, (2123), 2123 states have call successors, (2123) [2022-12-14 14:53:57,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5721 states to 5721 states and 8405 transitions. [2022-12-14 14:53:57,492 INFO L78 Accepts]: Start accepts. Automaton has 5721 states and 8405 transitions. Word has length 137 [2022-12-14 14:53:57,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:53:57,492 INFO L495 AbstractCegarLoop]: Abstraction has 5721 states and 8405 transitions. [2022-12-14 14:53:57,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:53:57,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5721 states and 8405 transitions. [2022-12-14 14:53:57,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-12-14 14:53:57,496 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:53:57,496 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:57,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:53:57,496 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 14:53:57,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:53:57,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1522261638, now seen corresponding path program 1 times [2022-12-14 14:53:57,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:53:57,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530050841] [2022-12-14 14:53:57,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:53:57,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:53:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:53:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-12-14 14:53:58,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:53:58,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530050841] [2022-12-14 14:53:58,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530050841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:53:58,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:53:58,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:53:58,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700560240] [2022-12-14 14:53:58,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:53:58,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:53:58,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:53:58,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:53:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:53:58,288 INFO L87 Difference]: Start difference. First operand 5721 states and 8405 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:54:00,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:54:06,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:06,624 INFO L93 Difference]: Finished difference Result 16943 states and 24925 transitions. [2022-12-14 14:54:06,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:54:06,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2022-12-14 14:54:06,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:06,676 INFO L225 Difference]: With dead ends: 16943 [2022-12-14 14:54:06,677 INFO L226 Difference]: Without dead ends: 11247 [2022-12-14 14:54:06,698 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 14:54:06,698 INFO L413 NwaCegarLoop]: 5016 mSDtfsCounter, 4108 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4108 SdHoareTripleChecker+Valid, 8839 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:06,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4108 Valid, 8839 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 888 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-12-14 14:54:06,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11247 states. [2022-12-14 14:54:07,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11247 to 11211. [2022-12-14 14:54:07,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11211 states, 6406 states have (on average 1.2736497034030596) internal successors, (8159), 6672 states have internal predecessors, (8159), 4143 states have call successors, (4143), 662 states have call predecessors, (4143), 659 states have return successors, (4202), 4080 states have call predecessors, (4202), 4140 states have call successors, (4202) [2022-12-14 14:54:07,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11211 states to 11211 states and 16504 transitions. [2022-12-14 14:54:07,150 INFO L78 Accepts]: Start accepts. Automaton has 11211 states and 16504 transitions. Word has length 142 [2022-12-14 14:54:07,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:07,151 INFO L495 AbstractCegarLoop]: Abstraction has 11211 states and 16504 transitions. [2022-12-14 14:54:07,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:54:07,151 INFO L276 IsEmpty]: Start isEmpty. Operand 11211 states and 16504 transitions. [2022-12-14 14:54:07,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-12-14 14:54:07,155 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:07,156 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:07,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:54:07,156 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 14:54:07,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:07,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1870644715, now seen corresponding path program 1 times [2022-12-14 14:54:07,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:07,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081828330] [2022-12-14 14:54:07,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:07,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-12-14 14:54:07,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:07,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081828330] [2022-12-14 14:54:07,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081828330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:07,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:07,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:54:07,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170852716] [2022-12-14 14:54:07,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:07,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:54:07,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:07,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:54:07,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:54:07,830 INFO L87 Difference]: Start difference. First operand 11211 states and 16504 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:54:09,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:54:16,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:16,387 INFO L93 Difference]: Finished difference Result 32183 states and 47238 transitions. [2022-12-14 14:54:16,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:54:16,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 146 [2022-12-14 14:54:16,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:16,487 INFO L225 Difference]: With dead ends: 32183 [2022-12-14 14:54:16,488 INFO L226 Difference]: Without dead ends: 20997 [2022-12-14 14:54:16,540 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 14:54:16,541 INFO L413 NwaCegarLoop]: 4765 mSDtfsCounter, 3692 mSDsluCounter, 3754 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3692 SdHoareTripleChecker+Valid, 8519 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:16,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3692 Valid, 8519 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 920 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-12-14 14:54:16,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20997 states. [2022-12-14 14:54:17,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20997 to 20957. [2022-12-14 14:54:17,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20957 states, 11980 states have (on average 1.267195325542571) internal successors, (15181), 12474 states have internal predecessors, (15181), 7693 states have call successors, (7693), 1286 states have call predecessors, (7693), 1281 states have return successors, (7822), 7578 states have call predecessors, (7822), 7690 states have call successors, (7822) [2022-12-14 14:54:17,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20957 states to 20957 states and 30696 transitions. [2022-12-14 14:54:17,450 INFO L78 Accepts]: Start accepts. Automaton has 20957 states and 30696 transitions. Word has length 146 [2022-12-14 14:54:17,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:17,451 INFO L495 AbstractCegarLoop]: Abstraction has 20957 states and 30696 transitions. [2022-12-14 14:54:17,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:54:17,452 INFO L276 IsEmpty]: Start isEmpty. Operand 20957 states and 30696 transitions. [2022-12-14 14:54:17,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-14 14:54:17,453 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:17,454 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:17,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:54:17,454 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 14:54:17,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1874162914, now seen corresponding path program 1 times [2022-12-14 14:54:17,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:17,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742260679] [2022-12-14 14:54:17,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:17,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:18,153 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-12-14 14:54:18,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:18,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742260679] [2022-12-14 14:54:18,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742260679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:18,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:18,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:54:18,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693500148] [2022-12-14 14:54:18,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:18,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:54:18,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:18,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:54:18,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:54:18,155 INFO L87 Difference]: Start difference. First operand 20957 states and 30696 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:54:20,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:54:27,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:27,352 INFO L93 Difference]: Finished difference Result 39136 states and 56916 transitions. [2022-12-14 14:54:27,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:54:27,353 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 151 [2022-12-14 14:54:27,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:27,408 INFO L225 Difference]: With dead ends: 39136 [2022-12-14 14:54:27,408 INFO L226 Difference]: Without dead ends: 18204 [2022-12-14 14:54:27,457 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 14:54:27,457 INFO L413 NwaCegarLoop]: 5022 mSDtfsCounter, 2448 mSDsluCounter, 3789 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 8811 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:27,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 8811 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1045 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-12-14 14:54:27,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18204 states. [2022-12-14 14:54:27,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18204 to 18169. [2022-12-14 14:54:27,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18169 states, 10492 states have (on average 1.2646778497903164) internal successors, (13269), 10929 states have internal predecessors, (13269), 6383 states have call successors, (6383), 1294 states have call predecessors, (6383), 1291 states have return successors, (6465), 6286 states have call predecessors, (6465), 6380 states have call successors, (6465) [2022-12-14 14:54:28,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18169 states to 18169 states and 26117 transitions. [2022-12-14 14:54:28,056 INFO L78 Accepts]: Start accepts. Automaton has 18169 states and 26117 transitions. Word has length 151 [2022-12-14 14:54:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:28,057 INFO L495 AbstractCegarLoop]: Abstraction has 18169 states and 26117 transitions. [2022-12-14 14:54:28,057 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-14 14:54:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 18169 states and 26117 transitions. [2022-12-14 14:54:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-14 14:54:28,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:28,059 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:54:28,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:54:28,059 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 14:54:28,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:28,059 INFO L85 PathProgramCache]: Analyzing trace with hash 118587633, now seen corresponding path program 1 times [2022-12-14 14:54:28,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:28,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309764115] [2022-12-14 14:54:28,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:28,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:28,700 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-12-14 14:54:28,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:28,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309764115] [2022-12-14 14:54:28,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309764115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:28,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:28,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:54:28,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668621714] [2022-12-14 14:54:28,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:28,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:54:28,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:28,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:54:28,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:54:28,702 INFO L87 Difference]: Start difference. First operand 18169 states and 26117 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 14:54:30,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:54:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:37,987 INFO L93 Difference]: Finished difference Result 48716 states and 70299 transitions. [2022-12-14 14:54:37,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:54:37,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 154 [2022-12-14 14:54:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:38,099 INFO L225 Difference]: With dead ends: 48716 [2022-12-14 14:54:38,099 INFO L226 Difference]: Without dead ends: 30572 [2022-12-14 14:54:38,152 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 14:54:38,152 INFO L413 NwaCegarLoop]: 5055 mSDtfsCounter, 4201 mSDsluCounter, 3777 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4201 SdHoareTripleChecker+Valid, 8832 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:38,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4201 Valid, 8832 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 898 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-12-14 14:54:38,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30572 states. [2022-12-14 14:54:39,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30572 to 30532. [2022-12-14 14:54:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30532 states, 17605 states have (on average 1.2648679352456689) internal successors, (22268), 18346 states have internal predecessors, (22268), 10849 states have call successors, (10849), 2084 states have call predecessors, (10849), 2075 states have return successors, (11020), 10658 states have call predecessors, (11020), 10846 states have call successors, (11020) [2022-12-14 14:54:39,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30532 states to 30532 states and 44137 transitions. [2022-12-14 14:54:39,222 INFO L78 Accepts]: Start accepts. Automaton has 30532 states and 44137 transitions. Word has length 154 [2022-12-14 14:54:39,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:39,223 INFO L495 AbstractCegarLoop]: Abstraction has 30532 states and 44137 transitions. [2022-12-14 14:54:39,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 14:54:39,223 INFO L276 IsEmpty]: Start isEmpty. Operand 30532 states and 44137 transitions. [2022-12-14 14:54:39,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-14 14:54:39,224 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:39,225 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:54:39,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:54:39,225 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 14:54:39,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:39,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1864024644, now seen corresponding path program 1 times [2022-12-14 14:54:39,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:39,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006505283] [2022-12-14 14:54:39,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:39,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:40,247 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-12-14 14:54:40,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:40,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006505283] [2022-12-14 14:54:40,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006505283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:40,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:40,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:54:40,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307520657] [2022-12-14 14:54:40,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:40,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:54:40,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:40,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:54:40,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:54:40,250 INFO L87 Difference]: Start difference. First operand 30532 states and 44137 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 14:54:42,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:54:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:54:53,786 INFO L93 Difference]: Finished difference Result 56215 states and 81229 transitions. [2022-12-14 14:54:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:54:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 175 [2022-12-14 14:54:53,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:54:53,960 INFO L225 Difference]: With dead ends: 56215 [2022-12-14 14:54:53,961 INFO L226 Difference]: Without dead ends: 56213 [2022-12-14 14:54:53,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:54:53,982 INFO L413 NwaCegarLoop]: 4728 mSDtfsCounter, 4040 mSDsluCounter, 12620 mSDsCounter, 0 mSdLazyCounter, 1761 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 17348 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1761 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:54:53,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4058 Valid, 17348 Invalid, 1765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1761 Invalid, 1 Unknown, 0 Unchecked, 12.0s Time] [2022-12-14 14:54:54,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56213 states. [2022-12-14 14:54:55,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56213 to 56177. [2022-12-14 14:54:55,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56177 states, 32434 states have (on average 1.2666337793673306) internal successors, (41082), 33918 states have internal predecessors, (41082), 19801 states have call successors, (19801), 4049 states have call predecessors, (19801), 3939 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-12-14 14:54:55,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56177 states to 56177 states and 81194 transitions. [2022-12-14 14:54:55,963 INFO L78 Accepts]: Start accepts. Automaton has 56177 states and 81194 transitions. Word has length 175 [2022-12-14 14:54:55,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:54:55,963 INFO L495 AbstractCegarLoop]: Abstraction has 56177 states and 81194 transitions. [2022-12-14 14:54:55,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 14:54:55,964 INFO L276 IsEmpty]: Start isEmpty. Operand 56177 states and 81194 transitions. [2022-12-14 14:54:55,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-12-14 14:54:55,965 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:54:55,965 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2022-12-14 14:54:55,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:54:55,965 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 14:54:55,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:54:55,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1690075232, now seen corresponding path program 1 times [2022-12-14 14:54:55,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:54:55,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794780634] [2022-12-14 14:54:55,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:54:55,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:54:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:54:57,011 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-12-14 14:54:57,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:54:57,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794780634] [2022-12-14 14:54:57,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794780634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:54:57,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:54:57,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:54:57,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372586246] [2022-12-14 14:54:57,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:54:57,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:54:57,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:54:57,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:54:57,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:54:57,014 INFO L87 Difference]: Start difference. First operand 56177 states and 81194 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 14:54:59,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:55:09,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:09,029 INFO L93 Difference]: Finished difference Result 56187 states and 81203 transitions. [2022-12-14 14:55:09,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:55:09,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 180 [2022-12-14 14:55:09,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:09,208 INFO L225 Difference]: With dead ends: 56187 [2022-12-14 14:55:09,208 INFO L226 Difference]: Without dead ends: 56185 [2022-12-14 14:55:09,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:55:09,231 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4202 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4219 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:55:09,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4219 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 14:55:09,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56185 states. [2022-12-14 14:55:11,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56185 to 56185. [2022-12-14 14:55:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56185 states, 32440 states have (on average 1.2665844636251542) internal successors, (41088), 33924 states have internal predecessors, (41088), 19801 states have call successors, (19801), 4051 states have call predecessors, (19801), 3941 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-12-14 14:55:11,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56185 states to 56185 states and 81200 transitions. [2022-12-14 14:55:11,676 INFO L78 Accepts]: Start accepts. Automaton has 56185 states and 81200 transitions. Word has length 180 [2022-12-14 14:55:11,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:55:11,677 INFO L495 AbstractCegarLoop]: Abstraction has 56185 states and 81200 transitions. [2022-12-14 14:55:11,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-12-14 14:55:11,677 INFO L276 IsEmpty]: Start isEmpty. Operand 56185 states and 81200 transitions. [2022-12-14 14:55:11,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-12-14 14:55:11,679 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:11,679 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 6, 6, 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] [2022-12-14 14:55:11,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:55:11,679 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 14:55:11,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:11,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1565692380, now seen corresponding path program 1 times [2022-12-14 14:55:11,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:11,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695403201] [2022-12-14 14:55:11,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:11,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:55:12,776 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-12-14 14:55:12,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:55:12,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695403201] [2022-12-14 14:55:12,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695403201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:55:12,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:55:12,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:55:12,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415278583] [2022-12-14 14:55:12,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:55:12,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:55:12,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:55:12,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:55:12,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:55:12,778 INFO L87 Difference]: Start difference. First operand 56185 states and 81200 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 14:55:14,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:55:24,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:24,706 INFO L93 Difference]: Finished difference Result 56195 states and 81209 transitions. [2022-12-14 14:55:24,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:55:24,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 194 [2022-12-14 14:55:24,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:24,870 INFO L225 Difference]: With dead ends: 56195 [2022-12-14 14:55:24,870 INFO L226 Difference]: Without dead ends: 56193 [2022-12-14 14:55:24,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:55:24,889 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4214 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:55:24,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4214 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-12-14 14:55:24,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56193 states. [2022-12-14 14:55:27,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56193 to 56193. [2022-12-14 14:55:27,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56193 states, 32446 states have (on average 1.2665351661221722) internal successors, (41094), 33930 states have internal predecessors, (41094), 19801 states have call successors, (19801), 4053 states have call predecessors, (19801), 3943 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-12-14 14:55:27,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56193 states to 56193 states and 81206 transitions. [2022-12-14 14:55:27,944 INFO L78 Accepts]: Start accepts. Automaton has 56193 states and 81206 transitions. Word has length 194 [2022-12-14 14:55:27,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:55:27,944 INFO L495 AbstractCegarLoop]: Abstraction has 56193 states and 81206 transitions. [2022-12-14 14:55:27,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 14:55:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 56193 states and 81206 transitions. [2022-12-14 14:55:27,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-12-14 14:55:27,946 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:27,946 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2022-12-14 14:55:27,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:55:27,946 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 14:55:27,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:27,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1275168352, now seen corresponding path program 1 times [2022-12-14 14:55:27,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:27,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089520541] [2022-12-14 14:55:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:27,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:55:28,882 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2022-12-14 14:55:28,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:55:28,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089520541] [2022-12-14 14:55:28,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089520541] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:55:28,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:55:28,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:55:28,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812419529] [2022-12-14 14:55:28,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:55:28,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:55:28,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:55:28,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:55:28,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:55:28,884 INFO L87 Difference]: Start difference. First operand 56193 states and 81206 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 14:55:30,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:55:41,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:41,623 INFO L93 Difference]: Finished difference Result 56203 states and 81215 transitions. [2022-12-14 14:55:41,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:55:41,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 190 [2022-12-14 14:55:41,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:41,783 INFO L225 Difference]: With dead ends: 56203 [2022-12-14 14:55:41,784 INFO L226 Difference]: Without dead ends: 56201 [2022-12-14 14:55:41,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:55:41,803 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4202 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4217 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:55:41,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4217 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-12-14 14:55:41,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56201 states. [2022-12-14 14:55:44,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56201 to 56201. [2022-12-14 14:55:44,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56201 states, 32452 states have (on average 1.2664858868482682) internal successors, (41100), 33936 states have internal predecessors, (41100), 19801 states have call successors, (19801), 4055 states have call predecessors, (19801), 3945 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-12-14 14:55:44,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56201 states to 56201 states and 81212 transitions. [2022-12-14 14:55:44,379 INFO L78 Accepts]: Start accepts. Automaton has 56201 states and 81212 transitions. Word has length 190 [2022-12-14 14:55:44,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:55:44,380 INFO L495 AbstractCegarLoop]: Abstraction has 56201 states and 81212 transitions. [2022-12-14 14:55:44,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 14:55:44,380 INFO L276 IsEmpty]: Start isEmpty. Operand 56201 states and 81212 transitions. [2022-12-14 14:55:44,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-12-14 14:55:44,382 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:55:44,382 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 5, 4, 4, 4, 4, 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] [2022-12-14 14:55:44,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 14:55:44,382 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 14:55:44,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:55:44,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2090359356, now seen corresponding path program 1 times [2022-12-14 14:55:44,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:55:44,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322480846] [2022-12-14 14:55:44,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:55:44,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:55:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:55:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2022-12-14 14:55:45,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:55:45,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322480846] [2022-12-14 14:55:45,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322480846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:55:45,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:55:45,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:55:45,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436879019] [2022-12-14 14:55:45,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:55:45,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:55:45,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:55:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:55:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:55:45,245 INFO L87 Difference]: Start difference. First operand 56201 states and 81212 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 14:55:47,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:55:58,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:55:58,139 INFO L93 Difference]: Finished difference Result 56211 states and 81221 transitions. [2022-12-14 14:55:58,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:55:58,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 195 [2022-12-14 14:55:58,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:55:58,305 INFO L225 Difference]: With dead ends: 56211 [2022-12-14 14:55:58,305 INFO L226 Difference]: Without dead ends: 56209 [2022-12-14 14:55:58,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:55:58,327 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4202 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4216 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:55:58,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4216 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-12-14 14:55:58,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56209 states. [2022-12-14 14:56:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56209 to 56209. [2022-12-14 14:56:00,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56209 states, 32458 states have (on average 1.2664366257933328) internal successors, (41106), 33942 states have internal predecessors, (41106), 19801 states have call successors, (19801), 4057 states have call predecessors, (19801), 3947 states have return successors, (20311), 19168 states have call predecessors, (20311), 19795 states have call successors, (20311) [2022-12-14 14:56:01,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56209 states to 56209 states and 81218 transitions. [2022-12-14 14:56:01,036 INFO L78 Accepts]: Start accepts. Automaton has 56209 states and 81218 transitions. Word has length 195 [2022-12-14 14:56:01,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:01,037 INFO L495 AbstractCegarLoop]: Abstraction has 56209 states and 81218 transitions. [2022-12-14 14:56:01,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-12-14 14:56:01,037 INFO L276 IsEmpty]: Start isEmpty. Operand 56209 states and 81218 transitions. [2022-12-14 14:56:01,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-12-14 14:56:01,039 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:01,039 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:01,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 14:56:01,039 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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 14:56:01,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:01,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1387211597, now seen corresponding path program 1 times [2022-12-14 14:56:01,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:01,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840454298] [2022-12-14 14:56:01,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:01,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:01,577 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2022-12-14 14:56:01,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:01,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840454298] [2022-12-14 14:56:01,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840454298] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:01,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:01,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:01,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679548113] [2022-12-14 14:56:01,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:01,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:01,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:01,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:01,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:01,579 INFO L87 Difference]: Start difference. First operand 56209 states and 81218 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 14:56:03,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:56:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:15,854 INFO L93 Difference]: Finished difference Result 130623 states and 188334 transitions. [2022-12-14 14:56:15,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:56:15,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 194 [2022-12-14 14:56:15,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:16,110 INFO L225 Difference]: With dead ends: 130623 [2022-12-14 14:56:16,110 INFO L226 Difference]: Without dead ends: 74477 [2022-12-14 14:56:16,315 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 14:56:16,315 INFO L413 NwaCegarLoop]: 5921 mSDtfsCounter, 2448 mSDsluCounter, 3782 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 9703 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:16,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 9703 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1223 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-12-14 14:56:16,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74477 states. [2022-12-14 14:56:20,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74477 to 74369. [2022-12-14 14:56:20,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74369 states, 43106 states have (on average 1.2664594256020043) internal successors, (54592), 45062 states have internal predecessors, (54592), 25819 states have call successors, (25819), 5583 states have call predecessors, (25819), 5441 states have return successors, (26413), 24994 states have call predecessors, (26413), 25813 states have call successors, (26413) [2022-12-14 14:56:20,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74369 states to 74369 states and 106824 transitions. [2022-12-14 14:56:20,461 INFO L78 Accepts]: Start accepts. Automaton has 74369 states and 106824 transitions. Word has length 194 [2022-12-14 14:56:20,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:20,461 INFO L495 AbstractCegarLoop]: Abstraction has 74369 states and 106824 transitions. [2022-12-14 14:56:20,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-14 14:56:20,462 INFO L276 IsEmpty]: Start isEmpty. Operand 74369 states and 106824 transitions. [2022-12-14 14:56:20,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-12-14 14:56:20,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:20,463 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 6, 5, 5, 4, 4, 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] [2022-12-14 14:56:20,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 14:56:20,463 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 14:56:20,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:20,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1937478368, now seen corresponding path program 1 times [2022-12-14 14:56:20,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:20,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403189739] [2022-12-14 14:56:20,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:20,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-12-14 14:56:21,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:21,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403189739] [2022-12-14 14:56:21,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403189739] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:21,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:21,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:56:21,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054415931] [2022-12-14 14:56:21,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:21,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:56:21,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:21,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:56:21,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:56:21,508 INFO L87 Difference]: Start difference. First operand 74369 states and 106824 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 14:56:23,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:56:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:35,724 INFO L93 Difference]: Finished difference Result 74379 states and 106833 transitions. [2022-12-14 14:56:35,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:56:35,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 200 [2022-12-14 14:56:35,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:35,940 INFO L225 Difference]: With dead ends: 74379 [2022-12-14 14:56:35,941 INFO L226 Difference]: Without dead ends: 74377 [2022-12-14 14:56:35,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:56:35,966 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4202 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4215 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:35,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4215 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 14:56:36,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74377 states. [2022-12-14 14:56:39,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74377 to 74377. [2022-12-14 14:56:39,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74377 states, 43112 states have (on average 1.2664223418073854) internal successors, (54598), 45068 states have internal predecessors, (54598), 25819 states have call successors, (25819), 5585 states have call predecessors, (25819), 5443 states have return successors, (26413), 24994 states have call predecessors, (26413), 25813 states have call successors, (26413) [2022-12-14 14:56:39,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74377 states to 74377 states and 106830 transitions. [2022-12-14 14:56:39,780 INFO L78 Accepts]: Start accepts. Automaton has 74377 states and 106830 transitions. Word has length 200 [2022-12-14 14:56:39,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:39,781 INFO L495 AbstractCegarLoop]: Abstraction has 74377 states and 106830 transitions. [2022-12-14 14:56:39,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-12-14 14:56:39,781 INFO L276 IsEmpty]: Start isEmpty. Operand 74377 states and 106830 transitions. [2022-12-14 14:56:39,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-12-14 14:56:39,783 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:39,783 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 7, 6, 6, 4, 4, 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] [2022-12-14 14:56:39,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 14:56:39,783 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 14:56:39,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:39,784 INFO L85 PathProgramCache]: Analyzing trace with hash -103597956, now seen corresponding path program 1 times [2022-12-14 14:56:39,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:39,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772930303] [2022-12-14 14:56:39,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:39,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2022-12-14 14:56:40,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:40,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772930303] [2022-12-14 14:56:40,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772930303] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:40,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:40,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:56:40,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304332249] [2022-12-14 14:56:40,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:40,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:56:40,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:40,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:56:40,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:56:40,646 INFO L87 Difference]: Start difference. First operand 74377 states and 106830 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 14:56:42,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:56:54,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:54,809 INFO L93 Difference]: Finished difference Result 74387 states and 106839 transitions. [2022-12-14 14:56:54,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:56:54,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 205 [2022-12-14 14:56:54,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:55,097 INFO L225 Difference]: With dead ends: 74387 [2022-12-14 14:56:55,097 INFO L226 Difference]: Without dead ends: 74385 [2022-12-14 14:56:55,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:56:55,121 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4202 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4214 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:55,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4214 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-12-14 14:56:55,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74385 states. [2022-12-14 14:56:59,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74385 to 74385. [2022-12-14 14:56:59,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74385 states, 43118 states have (on average 1.2663852683334107) internal successors, (54604), 45074 states have internal predecessors, (54604), 25819 states have call successors, (25819), 5587 states have call predecessors, (25819), 5445 states have return successors, (26413), 24994 states have call predecessors, (26413), 25813 states have call successors, (26413) [2022-12-14 14:56:59,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74385 states to 74385 states and 106836 transitions. [2022-12-14 14:56:59,825 INFO L78 Accepts]: Start accepts. Automaton has 74385 states and 106836 transitions. Word has length 205 [2022-12-14 14:56:59,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:59,826 INFO L495 AbstractCegarLoop]: Abstraction has 74385 states and 106836 transitions. [2022-12-14 14:56:59,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 14:56:59,826 INFO L276 IsEmpty]: Start isEmpty. Operand 74385 states and 106836 transitions. [2022-12-14 14:56:59,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-12-14 14:56:59,828 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:59,828 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 8, 7, 7, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:56:59,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 14:56:59,828 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 14:56:59,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:59,829 INFO L85 PathProgramCache]: Analyzing trace with hash -639502600, now seen corresponding path program 1 times [2022-12-14 14:56:59,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:59,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678449128] [2022-12-14 14:56:59,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:59,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2022-12-14 14:57:00,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:00,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678449128] [2022-12-14 14:57:00,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678449128] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:00,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:00,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:57:00,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62620180] [2022-12-14 14:57:00,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:00,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:57:00,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:00,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:57:00,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:57:00,802 INFO L87 Difference]: Start difference. First operand 74385 states and 106836 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 14:57:02,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:18,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:18,531 INFO L93 Difference]: Finished difference Result 83671 states and 118361 transitions. [2022-12-14 14:57:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:57:18,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 219 [2022-12-14 14:57:18,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:18,780 INFO L225 Difference]: With dead ends: 83671 [2022-12-14 14:57:18,780 INFO L226 Difference]: Without dead ends: 83669 [2022-12-14 14:57:18,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:57:18,813 INFO L413 NwaCegarLoop]: 4526 mSDtfsCounter, 2571 mSDsluCounter, 11300 mSDsCounter, 0 mSdLazyCounter, 1718 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 15826 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1718 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:18,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2582 Valid, 15826 Invalid, 1721 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1718 Invalid, 1 Unknown, 0 Unchecked, 12.9s Time] [2022-12-14 14:57:18,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83669 states. [2022-12-14 14:57:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83669 to 83665. [2022-12-14 14:57:23,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83665 states, 48166 states have (on average 1.2555744716189843) internal successors, (60476), 50238 states have internal predecessors, (60476), 28639 states have call successors, (28639), 7051 states have call predecessors, (28639), 6857 states have return successors, (29241), 27750 states have call predecessors, (29241), 28633 states have call successors, (29241) [2022-12-14 14:57:23,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83665 states to 83665 states and 118356 transitions. [2022-12-14 14:57:23,388 INFO L78 Accepts]: Start accepts. Automaton has 83665 states and 118356 transitions. Word has length 219 [2022-12-14 14:57:23,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:23,389 INFO L495 AbstractCegarLoop]: Abstraction has 83665 states and 118356 transitions. [2022-12-14 14:57:23,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 14:57:23,389 INFO L276 IsEmpty]: Start isEmpty. Operand 83665 states and 118356 transitions. [2022-12-14 14:57:23,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-12-14 14:57:23,390 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:23,391 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 9, 8, 8, 4, 4, 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] [2022-12-14 14:57:23,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 14:57:23,391 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 14:57:23,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:23,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1697576636, now seen corresponding path program 1 times [2022-12-14 14:57:23,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:23,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010447357] [2022-12-14 14:57:23,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:23,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 771 trivial. 0 not checked. [2022-12-14 14:57:24,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:24,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010447357] [2022-12-14 14:57:24,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010447357] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:24,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:24,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:57:24,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40515572] [2022-12-14 14:57:24,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:24,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:57:24,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:24,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:57:24,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:57:24,331 INFO L87 Difference]: Start difference. First operand 83665 states and 118356 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 14:57:26,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:39,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:39,119 INFO L93 Difference]: Finished difference Result 83675 states and 118365 transitions. [2022-12-14 14:57:39,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:57:39,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 215 [2022-12-14 14:57:39,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:39,379 INFO L225 Difference]: With dead ends: 83675 [2022-12-14 14:57:39,380 INFO L226 Difference]: Without dead ends: 83673 [2022-12-14 14:57:39,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:57:39,413 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4202 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4212 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:39,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4212 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 14:57:39,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83673 states. [2022-12-14 14:57:44,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83673 to 83673. [2022-12-14 14:57:44,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83673 states, 48172 states have (on average 1.255542638877356) internal successors, (60482), 50244 states have internal predecessors, (60482), 28639 states have call successors, (28639), 7053 states have call predecessors, (28639), 6859 states have return successors, (29241), 27750 states have call predecessors, (29241), 28633 states have call successors, (29241) [2022-12-14 14:57:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83673 states to 83673 states and 118362 transitions. [2022-12-14 14:57:44,476 INFO L78 Accepts]: Start accepts. Automaton has 83673 states and 118362 transitions. Word has length 215 [2022-12-14 14:57:44,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:44,476 INFO L495 AbstractCegarLoop]: Abstraction has 83673 states and 118362 transitions. [2022-12-14 14:57:44,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 14:57:44,477 INFO L276 IsEmpty]: Start isEmpty. Operand 83673 states and 118362 transitions. [2022-12-14 14:57:44,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-12-14 14:57:44,478 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:44,478 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 10, 9, 9, 4, 4, 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] [2022-12-14 14:57:44,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 14:57:44,479 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 14:57:44,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:44,479 INFO L85 PathProgramCache]: Analyzing trace with hash -2021186208, now seen corresponding path program 1 times [2022-12-14 14:57:44,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:44,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819488504] [2022-12-14 14:57:44,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:44,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2022-12-14 14:57:45,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:45,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819488504] [2022-12-14 14:57:45,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819488504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:45,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:45,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:57:45,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2652810] [2022-12-14 14:57:45,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:45,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:57:45,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:45,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:57:45,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:57:45,548 INFO L87 Difference]: Start difference. First operand 83673 states and 118362 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 14:57:47,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:01,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:01,257 INFO L93 Difference]: Finished difference Result 83683 states and 118371 transitions. [2022-12-14 14:58:01,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:58:01,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 220 [2022-12-14 14:58:01,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:01,508 INFO L225 Difference]: With dead ends: 83683 [2022-12-14 14:58:01,508 INFO L226 Difference]: Without dead ends: 83681 [2022-12-14 14:58:01,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:58:01,538 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4202 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4211 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:01,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4211 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-12-14 14:58:01,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83681 states. [2022-12-14 14:58:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83681 to 83681. [2022-12-14 14:58:06,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83681 states, 48178 states have (on average 1.2555108140645108) internal successors, (60488), 50250 states have internal predecessors, (60488), 28639 states have call successors, (28639), 7055 states have call predecessors, (28639), 6861 states have return successors, (29241), 27750 states have call predecessors, (29241), 28633 states have call successors, (29241) [2022-12-14 14:58:06,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83681 states to 83681 states and 118368 transitions. [2022-12-14 14:58:06,872 INFO L78 Accepts]: Start accepts. Automaton has 83681 states and 118368 transitions. Word has length 220 [2022-12-14 14:58:06,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:06,872 INFO L495 AbstractCegarLoop]: Abstraction has 83681 states and 118368 transitions. [2022-12-14 14:58:06,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 14:58:06,873 INFO L276 IsEmpty]: Start isEmpty. Operand 83681 states and 118368 transitions. [2022-12-14 14:58:06,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-12-14 14:58:06,874 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:06,874 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 11, 10, 10, 6, 6, 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 14:58:06,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 14:58:06,874 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 14:58:06,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:06,875 INFO L85 PathProgramCache]: Analyzing trace with hash -675848412, now seen corresponding path program 1 times [2022-12-14 14:58:06,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:58:06,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590040744] [2022-12-14 14:58:06,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:06,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:58:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2022-12-14 14:58:07,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:58:07,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590040744] [2022-12-14 14:58:07,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590040744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:07,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:07,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:58:07,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130625552] [2022-12-14 14:58:07,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:07,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:58:07,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:58:07,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:58:07,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:58:07,911 INFO L87 Difference]: Start difference. First operand 83681 states and 118368 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 14:58:09,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:24,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:24,721 INFO L93 Difference]: Finished difference Result 83691 states and 118377 transitions. [2022-12-14 14:58:24,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:58:24,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 234 [2022-12-14 14:58:24,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:25,008 INFO L225 Difference]: With dead ends: 83691 [2022-12-14 14:58:25,009 INFO L226 Difference]: Without dead ends: 83689 [2022-12-14 14:58:25,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:58:25,036 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4206 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:25,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4206 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 11.4s Time] [2022-12-14 14:58:25,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83689 states. [2022-12-14 14:58:30,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83689 to 83689. [2022-12-14 14:58:30,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83689 states, 48184 states have (on average 1.2554789971774862) internal successors, (60494), 50256 states have internal predecessors, (60494), 28639 states have call successors, (28639), 7057 states have call predecessors, (28639), 6863 states have return successors, (29241), 27750 states have call predecessors, (29241), 28633 states have call successors, (29241) [2022-12-14 14:58:30,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83689 states to 83689 states and 118374 transitions. [2022-12-14 14:58:30,467 INFO L78 Accepts]: Start accepts. Automaton has 83689 states and 118374 transitions. Word has length 234 [2022-12-14 14:58:30,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:30,468 INFO L495 AbstractCegarLoop]: Abstraction has 83689 states and 118374 transitions. [2022-12-14 14:58:30,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 14:58:30,468 INFO L276 IsEmpty]: Start isEmpty. Operand 83689 states and 118374 transitions. [2022-12-14 14:58:30,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-12-14 14:58:30,469 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:30,469 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 12, 11, 11, 6, 6, 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 14:58:30,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 14:58:30,470 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 14:58:30,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:30,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1817055880, now seen corresponding path program 1 times [2022-12-14 14:58:30,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:58:30,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945363015] [2022-12-14 14:58:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:30,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:58:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:31,393 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 905 trivial. 0 not checked. [2022-12-14 14:58:31,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:58:31,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945363015] [2022-12-14 14:58:31,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945363015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:31,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:31,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:58:31,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137597319] [2022-12-14 14:58:31,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:31,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:58:31,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:58:31,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:58:31,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:58:31,395 INFO L87 Difference]: Start difference. First operand 83689 states and 118374 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 14:58:33,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:47,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:47,845 INFO L93 Difference]: Finished difference Result 83699 states and 118383 transitions. [2022-12-14 14:58:47,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:58:47,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 239 [2022-12-14 14:58:47,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:48,095 INFO L225 Difference]: With dead ends: 83699 [2022-12-14 14:58:48,095 INFO L226 Difference]: Without dead ends: 83697 [2022-12-14 14:58:48,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:58:48,126 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4205 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:48,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4205 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-12-14 14:58:48,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83697 states. [2022-12-14 14:58:53,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83697 to 83697. [2022-12-14 14:58:53,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83697 states, 48190 states have (on average 1.2554471882133222) internal successors, (60500), 50262 states have internal predecessors, (60500), 28639 states have call successors, (28639), 7059 states have call predecessors, (28639), 6865 states have return successors, (29241), 27750 states have call predecessors, (29241), 28633 states have call successors, (29241) [2022-12-14 14:58:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83697 states to 83697 states and 118380 transitions. [2022-12-14 14:58:54,170 INFO L78 Accepts]: Start accepts. Automaton has 83697 states and 118380 transitions. Word has length 239 [2022-12-14 14:58:54,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:54,171 INFO L495 AbstractCegarLoop]: Abstraction has 83697 states and 118380 transitions. [2022-12-14 14:58:54,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 14:58:54,171 INFO L276 IsEmpty]: Start isEmpty. Operand 83697 states and 118380 transitions. [2022-12-14 14:58:54,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-12-14 14:58:54,173 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:54,173 INFO L195 NwaCegarLoop]: trace histogram [16, 13, 12, 12, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2022-12-14 14:58:54,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 14:58:54,173 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 14:58:54,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:54,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1978209084, now seen corresponding path program 1 times [2022-12-14 14:58:54,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:58:54,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18298011] [2022-12-14 14:58:54,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:54,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:58:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:55,239 INFO L134 CoverageAnalysis]: Checked inductivity of 947 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 923 trivial. 0 not checked. [2022-12-14 14:58:55,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:58:55,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18298011] [2022-12-14 14:58:55,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18298011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:55,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:55,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:58:55,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090226932] [2022-12-14 14:58:55,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:55,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:58:55,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:58:55,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:58:55,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:58:55,241 INFO L87 Difference]: Start difference. First operand 83697 states and 118380 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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 14:58:57,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:12,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:12,585 INFO L93 Difference]: Finished difference Result 85321 states and 119826 transitions. [2022-12-14 14:59:12,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:59:12,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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 235 [2022-12-14 14:59:12,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:12,835 INFO L225 Difference]: With dead ends: 85321 [2022-12-14 14:59:12,835 INFO L226 Difference]: Without dead ends: 85319 [2022-12-14 14:59:12,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:59:12,865 INFO L413 NwaCegarLoop]: 3846 mSDtfsCounter, 4166 mSDsluCounter, 7728 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4172 SdHoareTripleChecker+Valid, 11574 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:12,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4172 Valid, 11574 Invalid, 1356 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1353 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2022-12-14 14:59:12,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85319 states. [2022-12-14 14:59:18,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85319 to 85317. [2022-12-14 14:59:18,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85317 states, 49160 states have (on average 1.253173311635476) internal successors, (61606), 51248 states have internal predecessors, (61606), 28807 states have call successors, (28807), 7541 states have call predecessors, (28807), 7347 states have return successors, (29409), 27918 states have call predecessors, (29409), 28801 states have call successors, (29409) [2022-12-14 14:59:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85317 states to 85317 states and 119822 transitions. [2022-12-14 14:59:18,987 INFO L78 Accepts]: Start accepts. Automaton has 85317 states and 119822 transitions. Word has length 235 [2022-12-14 14:59:18,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:59:18,988 INFO L495 AbstractCegarLoop]: Abstraction has 85317 states and 119822 transitions. [2022-12-14 14:59:18,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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 14:59:18,988 INFO L276 IsEmpty]: Start isEmpty. Operand 85317 states and 119822 transitions. [2022-12-14 14:59:18,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-12-14 14:59:18,990 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:59:18,990 INFO L195 NwaCegarLoop]: trace histogram [16, 14, 13, 13, 12, 12, 12, 12, 12, 12, 6, 6, 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 14:59:18,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 14:59:18,990 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 14:59:18,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:59:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1987631288, now seen corresponding path program 1 times [2022-12-14 14:59:18,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:59:18,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137581430] [2022-12-14 14:59:18,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:18,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:59:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1023 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 997 trivial. 0 not checked. [2022-12-14 14:59:19,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:59:19,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137581430] [2022-12-14 14:59:19,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137581430] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:59:19,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:59:19,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:59:19,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593022088] [2022-12-14 14:59:19,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:59:19,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:59:19,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:59:19,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:59:19,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:59:19,862 INFO L87 Difference]: Start difference. First operand 85317 states and 119822 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 14:59:21,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:25,431 WARN L539 Checker$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 14:59:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:38,284 INFO L93 Difference]: Finished difference Result 86193 states and 120406 transitions. [2022-12-14 14:59:38,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:59:38,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 249 [2022-12-14 14:59:38,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:38,547 INFO L225 Difference]: With dead ends: 86193 [2022-12-14 14:59:38,547 INFO L226 Difference]: Without dead ends: 86191 [2022-12-14 14:59:38,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:59:38,581 INFO L413 NwaCegarLoop]: 3829 mSDtfsCounter, 4143 mSDsluCounter, 7712 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4148 SdHoareTripleChecker+Valid, 11541 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:38,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4148 Valid, 11541 Invalid, 1358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1355 Invalid, 1 Unknown, 0 Unchecked, 12.4s Time] [2022-12-14 14:59:38,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86191 states. [2022-12-14 14:59:44,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86191 to 86189. [2022-12-14 14:59:44,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86189 states, 49684 states have (on average 1.2516303035182352) internal successors, (62186), 51772 states have internal predecessors, (62186), 28807 states have call successors, (28807), 7889 states have call predecessors, (28807), 7695 states have return successors, (29409), 27918 states have call predecessors, (29409), 28801 states have call successors, (29409) [2022-12-14 14:59:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86189 states to 86189 states and 120402 transitions. [2022-12-14 14:59:45,086 INFO L78 Accepts]: Start accepts. Automaton has 86189 states and 120402 transitions. Word has length 249 [2022-12-14 14:59:45,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:59:45,087 INFO L495 AbstractCegarLoop]: Abstraction has 86189 states and 120402 transitions. [2022-12-14 14:59:45,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 14:59:45,087 INFO L276 IsEmpty]: Start isEmpty. Operand 86189 states and 120402 transitions. [2022-12-14 14:59:45,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-12-14 14:59:45,089 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:59:45,089 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 14, 14, 12, 12, 12, 12, 12, 12, 6, 6, 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 14:59:45,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 14:59:45,089 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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 14:59:45,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:59:45,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2094569380, now seen corresponding path program 1 times [2022-12-14 14:59:45,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:59:45,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371802715] [2022-12-14 14:59:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:45,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:59:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:46,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2022-12-14 14:59:46,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:59:46,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371802715] [2022-12-14 14:59:46,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371802715] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:59:46,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:59:46,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:59:46,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510873432] [2022-12-14 14:59:46,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:59:46,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:59:46,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:59:46,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:59:46,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:59:46,044 INFO L87 Difference]: Start difference. First operand 86189 states and 120402 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 14:59:48,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:03,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:00:03,471 INFO L93 Difference]: Finished difference Result 86199 states and 120411 transitions. [2022-12-14 15:00:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:00:03,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 254 [2022-12-14 15:00:03,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:00:03,720 INFO L225 Difference]: With dead ends: 86199 [2022-12-14 15:00:03,720 INFO L226 Difference]: Without dead ends: 86197 [2022-12-14 15:00:03,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:00:03,750 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4202 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:00:03,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4202 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2022-12-14 15:00:03,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86197 states. [2022-12-14 15:00:10,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86197 to 86197. [2022-12-14 15:00:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86197 states, 49690 states have (on average 1.2515999195009055) internal successors, (62192), 51778 states have internal predecessors, (62192), 28807 states have call successors, (28807), 7891 states have call predecessors, (28807), 7697 states have return successors, (29409), 27918 states have call predecessors, (29409), 28801 states have call successors, (29409) [2022-12-14 15:00:10,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86197 states to 86197 states and 120408 transitions. [2022-12-14 15:00:10,640 INFO L78 Accepts]: Start accepts. Automaton has 86197 states and 120408 transitions. Word has length 254 [2022-12-14 15:00:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:00:10,640 INFO L495 AbstractCegarLoop]: Abstraction has 86197 states and 120408 transitions. [2022-12-14 15:00:10,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 15:00:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 86197 states and 120408 transitions. [2022-12-14 15:00:10,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-12-14 15:00:10,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:00:10,642 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2022-12-14 15:00:10,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 15:00:10,642 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:00:10,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:00:10,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1462497568, now seen corresponding path program 1 times [2022-12-14 15:00:10,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:00:10,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400322606] [2022-12-14 15:00:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:00:10,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:00:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:00:11,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1109 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1079 trivial. 0 not checked. [2022-12-14 15:00:11,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:00:11,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400322606] [2022-12-14 15:00:11,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400322606] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:00:11,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:00:11,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:00:11,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319744056] [2022-12-14 15:00:11,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:00:11,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:00:11,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:00:11,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:00:11,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:00:11,564 INFO L87 Difference]: Start difference. First operand 86197 states and 120408 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 15:00:13,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:29,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:00:29,140 INFO L93 Difference]: Finished difference Result 86207 states and 120417 transitions. [2022-12-14 15:00:29,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:00:29,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 250 [2022-12-14 15:00:29,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:00:29,396 INFO L225 Difference]: With dead ends: 86207 [2022-12-14 15:00:29,396 INFO L226 Difference]: Without dead ends: 86205 [2022-12-14 15:00:29,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:00:29,427 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4202 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4205 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:00:29,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4205 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-12-14 15:00:29,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86205 states. [2022-12-14 15:00:36,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86205 to 86205. [2022-12-14 15:00:36,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86205 states, 49696 states have (on average 1.2515695428203477) internal successors, (62198), 51784 states have internal predecessors, (62198), 28807 states have call successors, (28807), 7893 states have call predecessors, (28807), 7699 states have return successors, (29409), 27918 states have call predecessors, (29409), 28801 states have call successors, (29409) [2022-12-14 15:00:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86205 states to 86205 states and 120414 transitions. [2022-12-14 15:00:36,866 INFO L78 Accepts]: Start accepts. Automaton has 86205 states and 120414 transitions. Word has length 250 [2022-12-14 15:00:36,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:00:36,867 INFO L495 AbstractCegarLoop]: Abstraction has 86205 states and 120414 transitions. [2022-12-14 15:00:36,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 15:00:36,867 INFO L276 IsEmpty]: Start isEmpty. Operand 86205 states and 120414 transitions. [2022-12-14 15:00:36,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-12-14 15:00:36,869 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:00:36,869 INFO L195 NwaCegarLoop]: trace histogram [18, 12, 12, 12, 12, 12, 12, 8, 8, 3, 3, 3, 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] [2022-12-14 15:00:36,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 15:00:36,869 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:00:36,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:00:36,869 INFO L85 PathProgramCache]: Analyzing trace with hash -405820818, now seen corresponding path program 1 times [2022-12-14 15:00:36,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:00:36,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139933287] [2022-12-14 15:00:36,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:00:36,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:00:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:00:38,398 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2022-12-14 15:00:38,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:00:38,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139933287] [2022-12-14 15:00:38,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139933287] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:00:38,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:00:38,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:00:38,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467758057] [2022-12-14 15:00:38,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:00:38,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:00:38,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:00:38,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:00:38,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:00:38,401 INFO L87 Difference]: Start difference. First operand 86205 states and 120414 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 15:00:40,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:58,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:00:58,703 INFO L93 Difference]: Finished difference Result 86339 states and 120545 transitions. [2022-12-14 15:00:58,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:00:58,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 256 [2022-12-14 15:00:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:00:58,964 INFO L225 Difference]: With dead ends: 86339 [2022-12-14 15:00:58,964 INFO L226 Difference]: Without dead ends: 86337 [2022-12-14 15:00:58,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:00:58,997 INFO L413 NwaCegarLoop]: 4516 mSDtfsCounter, 2555 mSDsluCounter, 11298 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2560 SdHoareTripleChecker+Valid, 15814 SdHoareTripleChecker+Invalid, 1704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:00:58,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2560 Valid, 15814 Invalid, 1704 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1700 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2022-12-14 15:00:59,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86337 states. [2022-12-14 15:01:05,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86337 to 86333. [2022-12-14 15:01:05,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86333 states, 49792 states have (on average 1.2508435089974292) internal successors, (62282), 51880 states have internal predecessors, (62282), 28807 states have call successors, (28807), 7925 states have call predecessors, (28807), 7731 states have return successors, (29409), 27918 states have call predecessors, (29409), 28801 states have call successors, (29409) [2022-12-14 15:01:06,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86333 states to 86333 states and 120498 transitions. [2022-12-14 15:01:06,139 INFO L78 Accepts]: Start accepts. Automaton has 86333 states and 120498 transitions. Word has length 256 [2022-12-14 15:01:06,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:06,139 INFO L495 AbstractCegarLoop]: Abstraction has 86333 states and 120498 transitions. [2022-12-14 15:01:06,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 15:01:06,139 INFO L276 IsEmpty]: Start isEmpty. Operand 86333 states and 120498 transitions. [2022-12-14 15:01:06,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-12-14 15:01:06,141 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:06,141 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 12, 12, 12, 12, 12, 12, 6, 6, 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 15:01:06,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 15:01:06,142 INFO L420 AbstractCegarLoop]: === Iteration 24 === 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 15:01:06,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:06,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1372341220, now seen corresponding path program 1 times [2022-12-14 15:01:06,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:06,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768914312] [2022-12-14 15:01:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:06,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2022-12-14 15:01:07,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:07,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768914312] [2022-12-14 15:01:07,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768914312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:07,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:07,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:01:07,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660643155] [2022-12-14 15:01:07,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:07,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:01:07,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:07,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:01:07,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:01:07,199 INFO L87 Difference]: Start difference. First operand 86333 states and 120498 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 15:01:09,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:25,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:25,163 INFO L93 Difference]: Finished difference Result 86343 states and 120507 transitions. [2022-12-14 15:01:25,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:01:25,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 264 [2022-12-14 15:01:25,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:25,416 INFO L225 Difference]: With dead ends: 86343 [2022-12-14 15:01:25,416 INFO L226 Difference]: Without dead ends: 86341 [2022-12-14 15:01:25,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:01:25,447 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4198 mSDsluCounter, 7622 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4200 SdHoareTripleChecker+Valid, 11446 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:25,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4200 Valid, 11446 Invalid, 1342 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1340 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2022-12-14 15:01:25,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86341 states. [2022-12-14 15:01:32,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86341 to 86341. [2022-12-14 15:01:32,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86341 states, 49798 states have (on average 1.2508132856741234) internal successors, (62288), 51886 states have internal predecessors, (62288), 28807 states have call successors, (28807), 7927 states have call predecessors, (28807), 7733 states have return successors, (29409), 27918 states have call predecessors, (29409), 28801 states have call successors, (29409) [2022-12-14 15:01:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86341 states to 86341 states and 120504 transitions. [2022-12-14 15:01:32,642 INFO L78 Accepts]: Start accepts. Automaton has 86341 states and 120504 transitions. Word has length 264 [2022-12-14 15:01:32,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:32,643 INFO L495 AbstractCegarLoop]: Abstraction has 86341 states and 120504 transitions. [2022-12-14 15:01:32,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 15:01:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 86341 states and 120504 transitions. [2022-12-14 15:01:32,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-12-14 15:01:32,646 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:32,646 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 16, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2022-12-14 15:01:32,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 15:01:32,647 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:01:32,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:32,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1384368736, now seen corresponding path program 1 times [2022-12-14 15:01:32,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:32,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930652495] [2022-12-14 15:01:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:32,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:33,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1237 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 1203 trivial. 0 not checked. [2022-12-14 15:01:33,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:33,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930652495] [2022-12-14 15:01:33,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930652495] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:33,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:33,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:01:33,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706311410] [2022-12-14 15:01:33,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:33,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:01:33,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:33,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:01:33,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:01:33,625 INFO L87 Difference]: Start difference. First operand 86341 states and 120504 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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 15:01:35,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:51,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:51,941 INFO L93 Difference]: Finished difference Result 86781 states and 120858 transitions. [2022-12-14 15:01:51,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:01:51,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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 260 [2022-12-14 15:01:51,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:52,195 INFO L225 Difference]: With dead ends: 86781 [2022-12-14 15:01:52,195 INFO L226 Difference]: Without dead ends: 86777 [2022-12-14 15:01:52,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:01:52,227 INFO L413 NwaCegarLoop]: 3824 mSDtfsCounter, 4174 mSDsluCounter, 7652 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4175 SdHoareTripleChecker+Valid, 11476 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:52,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4175 Valid, 11476 Invalid, 1348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1345 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2022-12-14 15:01:52,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86777 states. [2022-12-14 15:01:59,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86777 to 86775. [2022-12-14 15:01:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86775 states, 50095 states have (on average 1.250344345743088) internal successors, (62636), 52182 states have internal predecessors, (62636), 28807 states have call successors, (28807), 8065 states have call predecessors, (28807), 7870 states have return successors, (29409), 27918 states have call predecessors, (29409), 28801 states have call successors, (29409) [2022-12-14 15:01:59,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86775 states to 86775 states and 120852 transitions. [2022-12-14 15:01:59,907 INFO L78 Accepts]: Start accepts. Automaton has 86775 states and 120852 transitions. Word has length 260 [2022-12-14 15:01:59,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:59,907 INFO L495 AbstractCegarLoop]: Abstraction has 86775 states and 120852 transitions. [2022-12-14 15:01:59,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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 15:01:59,907 INFO L276 IsEmpty]: Start isEmpty. Operand 86775 states and 120852 transitions. [2022-12-14 15:01:59,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-12-14 15:01:59,909 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:59,910 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 16, 12, 12, 12, 12, 12, 12, 6, 6, 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] [2022-12-14 15:01:59,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 15:01:59,910 INFO L420 AbstractCegarLoop]: === Iteration 26 === 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 15:01:59,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:59,910 INFO L85 PathProgramCache]: Analyzing trace with hash -692629468, now seen corresponding path program 1 times [2022-12-14 15:01:59,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:59,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784090117] [2022-12-14 15:01:59,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:59,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:00,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 1297 trivial. 0 not checked. [2022-12-14 15:02:00,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:00,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784090117] [2022-12-14 15:02:00,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784090117] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:00,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:00,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:02:00,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967673915] [2022-12-14 15:02:00,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:00,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:02:00,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:00,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:02:00,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:02:00,829 INFO L87 Difference]: Start difference. First operand 86775 states and 120852 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 15:02:02,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:19,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:19,493 INFO L93 Difference]: Finished difference Result 86781 states and 120857 transitions. [2022-12-14 15:02:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:02:19,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 274 [2022-12-14 15:02:19,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:19,747 INFO L225 Difference]: With dead ends: 86781 [2022-12-14 15:02:19,747 INFO L226 Difference]: Without dead ends: 86468 [2022-12-14 15:02:19,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:02:19,779 INFO L413 NwaCegarLoop]: 3825 mSDtfsCounter, 4198 mSDsluCounter, 7624 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4198 SdHoareTripleChecker+Valid, 11449 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:19,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4198 Valid, 11449 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1337 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2022-12-14 15:02:19,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86468 states. [2022-12-14 15:02:27,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86468 to 86468. [2022-12-14 15:02:27,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86468 states, 49960 states have (on average 1.2500400320256204) internal successors, (62452), 51999 states have internal predecessors, (62452), 28672 states have call successors, (28672), 8027 states have call predecessors, (28672), 7833 states have return successors, (29277), 27832 states have call predecessors, (29277), 28669 states have call successors, (29277) [2022-12-14 15:02:27,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86468 states to 86468 states and 120401 transitions. [2022-12-14 15:02:27,550 INFO L78 Accepts]: Start accepts. Automaton has 86468 states and 120401 transitions. Word has length 274 [2022-12-14 15:02:27,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:27,550 INFO L495 AbstractCegarLoop]: Abstraction has 86468 states and 120401 transitions. [2022-12-14 15:02:27,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 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 15:02:27,550 INFO L276 IsEmpty]: Start isEmpty. Operand 86468 states and 120401 transitions. [2022-12-14 15:02:27,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-12-14 15:02:27,553 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:27,553 INFO L195 NwaCegarLoop]: trace histogram [18, 12, 12, 12, 12, 12, 12, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:27,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 15:02:27,553 INFO L420 AbstractCegarLoop]: === Iteration 27 === 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 15:02:27,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:27,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1154765842, now seen corresponding path program 1 times [2022-12-14 15:02:27,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:27,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271113467] [2022-12-14 15:02:27,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:27,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2022-12-14 15:02:28,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:28,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271113467] [2022-12-14 15:02:28,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271113467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:28,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:28,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:02:28,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792267080] [2022-12-14 15:02:28,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:28,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:02:28,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:28,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:02:28,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:02:28,168 INFO L87 Difference]: Start difference. First operand 86468 states and 120401 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29)