./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/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_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/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_38f59fd8-2550-484e-abd6-4e0da3b16e11/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 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 --- 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 14:56:27,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:56:27,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:56:27,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:56:27,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:56:27,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:56:27,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:56:27,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:56:27,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:56:27,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:56:27,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:56:27,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:56:27,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:56:27,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:56:27,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:56:27,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:56:27,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:56:27,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:56:27,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:56:27,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:56:27,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:56:27,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:56:27,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:56:27,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:56:27,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:56:27,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:56:27,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:56:27,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:56:27,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:56:27,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:56:27,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:56:27,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:56:27,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:56:27,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:56:27,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:56:27,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:56:27,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:56:27,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:56:27,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:56:27,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:56:27,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:56:27,539 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:56:27,553 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:56:27,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:56:27,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:56:27,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:56:27,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:56:27,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:56:27,554 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:56:27,554 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:56:27,554 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:56:27,555 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:56:27,555 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:56:27,555 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:56:27,555 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:56:27,555 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:56:27,555 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:56:27,555 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:56:27,555 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:56:27,556 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:56:27,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:56:27,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:56:27,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:56:27,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:56:27,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:56:27,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:56:27,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:56:27,557 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:56:27,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:56:27,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:56:27,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:56:27,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:56:27,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:56:27,558 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:56:27,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:56:27,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:56:27,558 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:56:27,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:56:27,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:56:27,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:56:27,558 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_38f59fd8-2550-484e-abd6-4e0da3b16e11/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 [2022-12-14 14:56:27,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:56:27,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:56:27,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:56:27,759 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:56:27,759 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:56:27,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2022-12-14 14:56:30,279 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:56:30,760 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:56:30,761 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2022-12-14 14:56:30,802 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh/data/3449875db/2e3ba880df89436eb9d6ce9132a8dbc3/FLAG7d40a0bcf [2022-12-14 14:56:30,839 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh/data/3449875db/2e3ba880df89436eb9d6ce9132a8dbc3 [2022-12-14 14:56:30,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:56:30,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:56:30,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:56:30,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:56:30,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:56:30,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:56:30" (1/1) ... [2022-12-14 14:56:30,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@506cd011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:30, skipping insertion in model container [2022-12-14 14:56:30,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:56:30" (1/1) ... [2022-12-14 14:56:30,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:56:31,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:56:31,763 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:56:31,797 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 14:56:31,806 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 14:56:31,815 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:56:31,852 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:31,962 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 14:56:31,966 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 14:56:31,966 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 14:56:31,974 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 14:56:31,980 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 14:56:31,987 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 14:56:31,992 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 14:56:32,022 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 14:56:32,029 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:32,032 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 14:56:32,038 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 14:56:32,112 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:32,118 WARN L623 FunctionHandler]: Unknown extern function ___pskb_trim [2022-12-14 14:56:32,132 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 14:56:32,181 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 14:56:32,182 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:32,231 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 14:56:32,231 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 14:56:32,241 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:32,242 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:32,275 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 14:56:32,291 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 14:56:32,364 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 14:56:32,369 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 14:56:32,374 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 14:56:32,409 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-12-14 14:56:32,460 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 14:56:32,483 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 14:56:32,634 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 14:56:32,644 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:32,645 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:32,655 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:56:32,655 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:32,658 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 14:56:32,668 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:32,676 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 14:56:32,677 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 14:56:32,697 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:32,708 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:32,714 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:32,733 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 14:56:32,734 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:32,750 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:32,760 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:32,772 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:32,772 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:56:32,772 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:56:32,796 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-12-14 14:56:32,807 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:32,812 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:32,816 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:32,858 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:32,889 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:32,889 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:32,891 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 14:56:32,907 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:32,908 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:32,909 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:56:32,909 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 14:56:32,911 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:32,911 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 14:56:32,918 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 14:56:32,919 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:32,924 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 14:56:32,924 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 14:56:32,951 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 14:56:32,952 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 14:56:32,954 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:32,988 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:32,989 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:32,990 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:32,991 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:56:33,001 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:33,007 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:33,007 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 14:56:33,007 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 14:56:33,008 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:33,009 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:33,010 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:33,011 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:33,012 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:33,013 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 14:56:33,014 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 14:56:33,014 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:56:33,014 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 14:56:33,014 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 14:56:33,020 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 14:56:33,020 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 14:56:33,020 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 14:56:33,020 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,021 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 14:56:33,021 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 14:56:33,036 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 14:56:33,037 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:56:33,037 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:56:33,037 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:56:33,037 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 14:56:33,038 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:56:33,038 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 14:56:33,038 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,039 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 14:56:33,039 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,039 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 14:56:33,040 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 14:56:33,040 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,040 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,041 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:33,042 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 14:56:33,042 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 14:56:33,042 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 14:56:33,042 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 14:56:33,043 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,043 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:56:33,043 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 14:56:33,043 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 14:56:33,043 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:56:33,048 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 14:56:33,049 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 14:56:33,049 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:56:33,054 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 14:56:33,054 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:56:33,059 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 14:56:33,059 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,059 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 14:56:33,064 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,065 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 14:56:33,415 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,415 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,415 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,415 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,416 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,416 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,416 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,416 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,416 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,416 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,416 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,416 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,417 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,417 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,420 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 14:56:33,421 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:56:33,423 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:56:33,424 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:56:33,444 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:56:33,446 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 14:56:33,453 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:56:33,454 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:56:33,456 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:56:33,456 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:56:33,457 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 14:56:33,458 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:56:33,458 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_trylock [2022-12-14 14:56:33,459 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 14:56:33,460 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 14:56:33,460 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 14:56:33,461 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:56:33,461 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 14:56:33,462 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:56:33,462 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 14:56:33,462 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 14:56:33,514 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:33,516 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:33,518 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 14:56:33,520 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:33,522 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:33,536 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:33,536 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,537 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,538 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:33,538 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:33,540 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:33,540 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,540 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,542 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:33,542 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,543 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:33,544 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:33,544 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:33,568 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:33,596 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:33,628 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:33,628 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:33,635 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:33,640 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:56:33,640 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:56:33,641 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:56:33,641 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:56:33,652 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 14:56:33,659 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 14:56:33,672 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:33,672 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:33,673 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:33,673 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:33,674 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:33,675 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-12-14 14:56:33,675 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-12-14 14:56:33,725 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 14:56:33,725 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:56:33,734 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:56:34,430 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_38f59fd8-2550-484e-abd6-4e0da3b16e11/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2022-12-14 14:56:34,432 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_38f59fd8-2550-484e-abd6-4e0da3b16e11/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2022-12-14 14:56:34,433 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_38f59fd8-2550-484e-abd6-4e0da3b16e11/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2022-12-14 14:56:34,433 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_38f59fd8-2550-484e-abd6-4e0da3b16e11/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2022-12-14 14:56:34,434 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,434 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,435 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,451 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:56:34,476 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:56:34,553 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:56:34,553 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 14:56:34,553 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 14:56:34,554 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 14:56:34,554 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 14:56:34,557 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 14:56:34,558 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 14:56:34,558 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 14:56:34,559 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 14:56:34,560 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 14:56:34,560 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 14:56:34,561 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 14:56:34,563 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 14:56:34,563 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:34,564 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 14:56:34,564 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-12-14 14:56:34,567 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:34,567 WARN L623 FunctionHandler]: Unknown extern function ___pskb_trim [2022-12-14 14:56:34,568 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 14:56:34,569 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 14:56:34,569 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,571 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 14:56:34,571 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 14:56:34,571 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:34,572 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:56:34,572 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 14:56:34,573 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 14:56:34,573 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-12-14 14:56:34,574 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-12-14 14:56:34,575 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_dword [2022-12-14 14:56:34,577 WARN L623 FunctionHandler]: Unknown extern function __pci_enable_wake [2022-12-14 14:56:34,578 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-14 14:56:34,579 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 14:56:34,582 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-14 14:56:34,583 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:34,583 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,584 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:56:34,585 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:34,586 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 14:56:34,587 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:34,588 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 14:56:34,588 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 14:56:34,590 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,592 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,593 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,595 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 14:56:34,595 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,598 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,599 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,601 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,601 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:56:34,601 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 14:56:34,604 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-12-14 14:56:34,606 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:34,607 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,609 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,617 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,621 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,622 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,623 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 14:56:34,625 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,626 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,627 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 14:56:34,627 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 14:56:34,628 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,628 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 14:56:34,630 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 14:56:34,630 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,631 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 14:56:34,631 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 14:56:34,634 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-12-14 14:56:34,635 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 14:56:34,636 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,646 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,646 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,648 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,648 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:56:34,649 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:34,650 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 14:56:34,650 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 14:56:34,651 WARN L623 FunctionHandler]: Unknown extern function pci_save_state [2022-12-14 14:56:34,651 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,652 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,653 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,653 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,654 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,655 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 14:56:34,656 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 14:56:34,656 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:56:34,656 WARN L623 FunctionHandler]: Unknown extern function pci_choose_state [2022-12-14 14:56:34,656 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 14:56:34,657 WARN L623 FunctionHandler]: Unknown extern function pci_set_power_state [2022-12-14 14:56:34,657 WARN L623 FunctionHandler]: Unknown extern function pci_restore_state [2022-12-14 14:56:34,657 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 14:56:34,657 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,657 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 14:56:34,658 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 14:56:34,660 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 14:56:34,660 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:56:34,660 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:56:34,660 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:56:34,661 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-14 14:56:34,661 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 14:56:34,661 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 14:56:34,661 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,688 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-14 14:56:34,689 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,689 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 14:56:34,689 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 14:56:34,690 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,690 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,691 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,692 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 14:56:34,692 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 14:56:34,693 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 14:56:34,693 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 14:56:34,693 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,694 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 14:56:34,694 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 14:56:34,694 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 14:56:34,694 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:56:34,695 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-14 14:56:34,695 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-14 14:56:34,695 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:56:34,696 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 14:56:34,696 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-14 14:56:34,697 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-14 14:56:34,697 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,697 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-14 14:56:34,698 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,698 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 14:56:34,703 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,703 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,704 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,704 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,704 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,704 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,704 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,705 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,705 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,705 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,705 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,705 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,705 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,706 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,708 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 14:56:34,709 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:56:34,711 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:56:34,711 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:56:34,718 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 14:56:34,720 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 14:56:34,725 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 14:56:34,726 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 14:56:34,728 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:56:34,729 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:56:34,729 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 14:56:34,729 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 14:56:34,729 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_trylock [2022-12-14 14:56:34,730 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 14:56:34,730 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 14:56:34,730 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 14:56:34,731 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:56:34,731 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 14:56:34,731 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 14:56:34,731 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-14 14:56:34,731 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-14 14:56:34,733 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,734 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,735 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 14:56:34,736 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:34,737 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 14:56:34,741 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,741 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,742 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,744 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,745 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,745 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,745 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,746 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,746 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 14:56:34,747 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,749 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,750 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,750 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 14:56:34,752 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,753 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:56:34,759 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:34,759 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:34,761 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:56:34,762 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:56:34,762 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:56:34,762 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:56:34,762 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:56:34,764 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-12-14 14:56:34,765 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 14:56:34,767 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:34,767 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:34,768 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:34,768 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:34,769 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 14:56:34,769 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-12-14 14:56:34,769 WARN L623 FunctionHandler]: Unknown extern function netdev_notice [2022-12-14 14:56:34,773 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 14:56:34,773 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 14:56:34,773 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 14:56:34,788 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_38f59fd8-2550-484e-abd6-4e0da3b16e11/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2022-12-14 14:56:34,789 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_38f59fd8-2550-484e-abd6-4e0da3b16e11/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2022-12-14 14:56:34,789 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_38f59fd8-2550-484e-abd6-4e0da3b16e11/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2022-12-14 14:56:34,789 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_38f59fd8-2550-484e-abd6-4e0da3b16e11/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2022-12-14 14:56:34,790 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,792 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,793 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,795 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:56:34,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:56:35,065 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:56:35,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35 WrapperNode [2022-12-14 14:56:35,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:56:35,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:56:35,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:56:35,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:56:35,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,321 INFO L138 Inliner]: procedures = 625, calls = 3468, calls flagged for inlining = 312, calls inlined = 276, statements flattened = 7975 [2022-12-14 14:56:35,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:56:35,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:56:35,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:56:35,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:56:35,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:56:35,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:56:35,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:56:35,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:56:35,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (1/1) ... [2022-12-14 14:56:35,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:56:35,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:56:35,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:56:35,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38f59fd8-2550-484e-abd6-4e0da3b16e11/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:56:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 14:56:35,628 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 14:56:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-14 14:56:35,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-14 14:56:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2022-12-14 14:56:35,628 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2022-12-14 14:56:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 14:56:35,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 14:56:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2022-12-14 14:56:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2022-12-14 14:56:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-12-14 14:56:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-12-14 14:56:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 14:56:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 14:56:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_89 [2022-12-14 14:56:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_89 [2022-12-14 14:56:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 14:56:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 14:56:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2022-12-14 14:56:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2022-12-14 14:56:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-12-14 14:56:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-12-14 14:56:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_78 [2022-12-14 14:56:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_78 [2022-12-14 14:56:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 14:56:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 14:56:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-12-14 14:56:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-12-14 14:56:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 14:56:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 14:56:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 14:56:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 14:56:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 14:56:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 14:56:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2022-12-14 14:56:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2022-12-14 14:56:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_resume [2022-12-14 14:56:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_resume [2022-12-14 14:56:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2022-12-14 14:56:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2022-12-14 14:56:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_close [2022-12-14 14:56:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_close [2022-12-14 14:56:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-12-14 14:56:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-12-14 14:56:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 14:56:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 14:56:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2022-12-14 14:56:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2022-12-14 14:56:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 14:56:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 14:56:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 14:56:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 14:56:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 14:56:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 14:56:35,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 14:56:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 14:56:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 14:56:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 14:56:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2022-12-14 14:56:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2022-12-14 14:56:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-14 14:56:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-14 14:56:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-12-14 14:56:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-12-14 14:56:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:56:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-12-14 14:56:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-12-14 14:56:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2022-12-14 14:56:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2022-12-14 14:56:35,632 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-12-14 14:56:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-12-14 14:56:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2022-12-14 14:56:35,633 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2022-12-14 14:56:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-12-14 14:56:35,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-12-14 14:56:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 14:56:35,633 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 14:56:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 14:56:35,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 14:56:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 14:56:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2022-12-14 14:56:35,633 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2022-12-14 14:56:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 14:56:35,633 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 14:56:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 14:56:35,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 14:56:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2022-12-14 14:56:35,634 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2022-12-14 14:56:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 14:56:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 14:56:35,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 14:56:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:56:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 14:56:35,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 14:56:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 14:56:35,634 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 14:56:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 14:56:35,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 14:56:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-12-14 14:56:35,634 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-12-14 14:56:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 14:56:35,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 14:56:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-12-14 14:56:35,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-12-14 14:56:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-12-14 14:56:35,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-12-14 14:56:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2022-12-14 14:56:35,635 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2022-12-14 14:56:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-14 14:56:35,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-14 14:56:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-14 14:56:35,635 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-14 14:56:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2022-12-14 14:56:35,635 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2022-12-14 14:56:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 14:56:35,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 14:56:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:56:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2022-12-14 14:56:35,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2022-12-14 14:56:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 14:56:35,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 14:56:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 14:56:35,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 14:56:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:56:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-12-14 14:56:35,636 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-12-14 14:56:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 14:56:35,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 14:56:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 14:56:35,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 14:56:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:56:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 14:56:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-12-14 14:56:35,637 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-12-14 14:56:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-12-14 14:56:35,637 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-12-14 14:56:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2022-12-14 14:56:35,637 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2022-12-14 14:56:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2022-12-14 14:56:35,637 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2022-12-14 14:56:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 14:56:35,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 14:56:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2022-12-14 14:56:35,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2022-12-14 14:56:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-12-14 14:56:35,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-12-14 14:56:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-12-14 14:56:35,637 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-12-14 14:56:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 14:56:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 14:56:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 14:56:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 14:56:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2022-12-14 14:56:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2022-12-14 14:56:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-12-14 14:56:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-12-14 14:56:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 14:56:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 14:56:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 14:56:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 14:56:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2022-12-14 14:56:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2022-12-14 14:56:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-12-14 14:56:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-12-14 14:56:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-12-14 14:56:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-12-14 14:56:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:56:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:56:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-12-14 14:56:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-12-14 14:56:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 14:56:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 14:56:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 14:56:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 14:56:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 14:56:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 14:56:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-12-14 14:56:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-12-14 14:56:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 14:56:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 14:56:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 14:56:35,640 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 14:56:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-12-14 14:56:35,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-12-14 14:56:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-12-14 14:56:35,640 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-12-14 14:56:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 14:56:35,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 14:56:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2022-12-14 14:56:35,640 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2022-12-14 14:56:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2022-12-14 14:56:35,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2022-12-14 14:56:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-14 14:56:35,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-14 14:56:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-12-14 14:56:35,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-12-14 14:56:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-12-14 14:56:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-12-14 14:56:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2022-12-14 14:56:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2022-12-14 14:56:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 14:56:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 14:56:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 14:56:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 14:56:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2022-12-14 14:56:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2022-12-14 14:56:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 14:56:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 14:56:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-12-14 14:56:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-12-14 14:56:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:56:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 14:56:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 14:56:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-12-14 14:56:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-12-14 14:56:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 14:56:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 14:56:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2022-12-14 14:56:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2022-12-14 14:56:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:56:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2022-12-14 14:56:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2022-12-14 14:56:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2022-12-14 14:56:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2022-12-14 14:56:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-12-14 14:56:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-12-14 14:56:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2022-12-14 14:56:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2022-12-14 14:56:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:56:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2022-12-14 14:56:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2022-12-14 14:56:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-12-14 14:56:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-12-14 14:56:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-14 14:56:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-14 14:56:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 14:56:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 14:56:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 14:56:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 14:56:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-12-14 14:56:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-12-14 14:56:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 14:56:35,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 14:56:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2022-12-14 14:56:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2022-12-14 14:56:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_81 [2022-12-14 14:56:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_81 [2022-12-14 14:56:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2022-12-14 14:56:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2022-12-14 14:56:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2022-12-14 14:56:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2022-12-14 14:56:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 14:56:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 14:56:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-12-14 14:56:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-12-14 14:56:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_open [2022-12-14 14:56:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_open [2022-12-14 14:56:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 14:56:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 14:56:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-12-14 14:56:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-12-14 14:56:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2022-12-14 14:56:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2022-12-14 14:56:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 14:56:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 14:56:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:56:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2022-12-14 14:56:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2022-12-14 14:56:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 14:56:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 14:56:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_82 [2022-12-14 14:56:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_82 [2022-12-14 14:56:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2022-12-14 14:56:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2022-12-14 14:56:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2022-12-14 14:56:35,645 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2022-12-14 14:56:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 14:56:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 14:56:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-12-14 14:56:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-12-14 14:56:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_nway_reset [2022-12-14 14:56:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_nway_reset [2022-12-14 14:56:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-12-14 14:56:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-12-14 14:56:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2022-12-14 14:56:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2022-12-14 14:56:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-12-14 14:56:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-12-14 14:56:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 14:56:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 14:56:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-12-14 14:56:35,646 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-12-14 14:56:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-12-14 14:56:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-12-14 14:56:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2022-12-14 14:56:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2022-12-14 14:56:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-12-14 14:56:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-12-14 14:56:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-12-14 14:56:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-12-14 14:56:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2022-12-14 14:56:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2022-12-14 14:56:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-12-14 14:56:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-12-14 14:56:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 14:56:35,647 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 14:56:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:56:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-12-14 14:56:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-12-14 14:56:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 14:56:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 14:56:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2022-12-14 14:56:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2022-12-14 14:56:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2022-12-14 14:56:35,648 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2022-12-14 14:56:36,381 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:56:36,384 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:56:36,641 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 14:56:44,740 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 14:56:44,881 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:56:46,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:56:46,116 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:56:46,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:56:46 BoogieIcfgContainer [2022-12-14 14:56:46,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:56:46,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:56:46,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:56:46,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:56:46,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:56:30" (1/3) ... [2022-12-14 14:56:46,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd22115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:56:46, skipping insertion in model container [2022-12-14 14:56:46,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:56:35" (2/3) ... [2022-12-14 14:56:46,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd22115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:56:46, skipping insertion in model container [2022-12-14 14:56:46,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:56:46" (3/3) ... [2022-12-14 14:56:46,129 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2022-12-14 14:56:46,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:56:46,148 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 14:56:46,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:56:46,214 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;@1d5b2fd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:56:46,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 14:56:46,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 2192 states, 1279 states have (on average 1.2791243158717749) internal successors, (1636), 1307 states have internal predecessors, (1636), 761 states have call successors, (761), 149 states have call predecessors, (761), 148 states have return successors, (755), 753 states have call predecessors, (755), 755 states have call successors, (755) [2022-12-14 14:56:46,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-14 14:56:46,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:46,235 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:56:46,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:56:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:46,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1892094754, now seen corresponding path program 1 times [2022-12-14 14:56:46,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:46,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195463154] [2022-12-14 14:56:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:46,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-12-14 14:56:46,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:46,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195463154] [2022-12-14 14:56:46,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195463154] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:46,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:46,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:46,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123246313] [2022-12-14 14:56:46,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:46,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:46,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:46,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:46,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:46,896 INFO L87 Difference]: Start difference. First operand has 2192 states, 1279 states have (on average 1.2791243158717749) internal successors, (1636), 1307 states have internal predecessors, (1636), 761 states have call successors, (761), 149 states have call predecessors, (761), 148 states have return successors, (755), 753 states have call predecessors, (755), 755 states have call successors, (755) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 14:56:49,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:56:52,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:56:55,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:56:55,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:56:55,546 INFO L93 Difference]: Finished difference Result 6298 states and 9109 transitions. [2022-12-14 14:56:55,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:56:55,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2022-12-14 14:56:55,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:56:55,576 INFO L225 Difference]: With dead ends: 6298 [2022-12-14 14:56:55,577 INFO L226 Difference]: Without dead ends: 4125 [2022-12-14 14:56:55,589 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 14:56:55,591 INFO L413 NwaCegarLoop]: 3471 mSDtfsCounter, 2796 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 6203 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:56:55,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2796 Valid, 6203 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 768 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-12-14 14:56:55,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4125 states. [2022-12-14 14:56:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4125 to 4118. [2022-12-14 14:56:55,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4118 states, 2418 states have (on average 1.273366418527709) internal successors, (3079), 2471 states have internal predecessors, (3079), 1410 states have call successors, (1410), 287 states have call predecessors, (1410), 286 states have return successors, (1406), 1402 states have call predecessors, (1406), 1406 states have call successors, (1406) [2022-12-14 14:56:55,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4118 states to 4118 states and 5895 transitions. [2022-12-14 14:56:55,902 INFO L78 Accepts]: Start accepts. Automaton has 4118 states and 5895 transitions. Word has length 161 [2022-12-14 14:56:55,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:56:55,903 INFO L495 AbstractCegarLoop]: Abstraction has 4118 states and 5895 transitions. [2022-12-14 14:56:55,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 14:56:55,903 INFO L276 IsEmpty]: Start isEmpty. Operand 4118 states and 5895 transitions. [2022-12-14 14:56:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-14 14:56:55,906 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:56:55,906 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:56:55,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:56:55,906 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:56:55,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:56:55,907 INFO L85 PathProgramCache]: Analyzing trace with hash 971732389, now seen corresponding path program 1 times [2022-12-14 14:56:55,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:56:55,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90016068] [2022-12-14 14:56:55,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:56:55,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:56:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:56:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-12-14 14:56:56,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:56:56,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90016068] [2022-12-14 14:56:56,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90016068] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:56:56,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:56:56,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:56:56,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277161721] [2022-12-14 14:56:56,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:56:56,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:56:56,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:56:56,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:56:56,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:56:56,202 INFO L87 Difference]: Start difference. First operand 4118 states and 5895 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 14:56:58,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:00,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:02,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:05,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:05,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:05,604 INFO L93 Difference]: Finished difference Result 12068 states and 17286 transitions. [2022-12-14 14:57:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:57:05,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2022-12-14 14:57:05,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:05,655 INFO L225 Difference]: With dead ends: 12068 [2022-12-14 14:57:05,655 INFO L226 Difference]: Without dead ends: 7979 [2022-12-14 14:57:05,677 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 14:57:05,678 INFO L413 NwaCegarLoop]: 3459 mSDtfsCounter, 2919 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2919 SdHoareTripleChecker+Valid, 6132 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:05,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2919 Valid, 6132 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 752 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-12-14 14:57:05,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7979 states. [2022-12-14 14:57:05,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7979 to 7943. [2022-12-14 14:57:06,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7943 states, 4698 states have (on average 1.2773520647083865) internal successors, (6001), 4808 states have internal predecessors, (6001), 2689 states have call successors, (2689), 563 states have call predecessors, (2689), 552 states have return successors, (2695), 2648 states have call predecessors, (2695), 2685 states have call successors, (2695) [2022-12-14 14:57:06,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7943 states to 7943 states and 11385 transitions. [2022-12-14 14:57:06,030 INFO L78 Accepts]: Start accepts. Automaton has 7943 states and 11385 transitions. Word has length 161 [2022-12-14 14:57:06,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:06,031 INFO L495 AbstractCegarLoop]: Abstraction has 7943 states and 11385 transitions. [2022-12-14 14:57:06,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-14 14:57:06,031 INFO L276 IsEmpty]: Start isEmpty. Operand 7943 states and 11385 transitions. [2022-12-14 14:57:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-14 14:57:06,033 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:06,034 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:57:06,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:57:06,034 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:57:06,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:06,034 INFO L85 PathProgramCache]: Analyzing trace with hash -713498568, now seen corresponding path program 1 times [2022-12-14 14:57:06,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:06,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295024821] [2022-12-14 14:57:06,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:06,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-12-14 14:57:06,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:06,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295024821] [2022-12-14 14:57:06,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295024821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:06,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:06,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:57:06,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755203733] [2022-12-14 14:57:06,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:06,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:57:06,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:06,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:57:06,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:57:06,307 INFO L87 Difference]: Start difference. First operand 7943 states and 11385 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 14:57:07,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:10,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:14,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:16,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:17,080 INFO L93 Difference]: Finished difference Result 23585 states and 33858 transitions. [2022-12-14 14:57:17,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:57:17,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 174 [2022-12-14 14:57:17,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:17,138 INFO L225 Difference]: With dead ends: 23585 [2022-12-14 14:57:17,138 INFO L226 Difference]: Without dead ends: 15671 [2022-12-14 14:57:17,160 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 14:57:17,160 INFO L413 NwaCegarLoop]: 3512 mSDtfsCounter, 2940 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2940 SdHoareTripleChecker+Valid, 6228 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:17,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2940 Valid, 6228 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 764 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 14:57:17,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15671 states. [2022-12-14 14:57:17,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15671 to 15631. [2022-12-14 14:57:17,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15631 states, 9273 states have (on average 1.2783349509328157) internal successors, (11854), 9497 states have internal predecessors, (11854), 5270 states have call successors, (5270), 1113 states have call predecessors, (5270), 1084 states have return successors, (5329), 5166 states have call predecessors, (5329), 5266 states have call successors, (5329) [2022-12-14 14:57:17,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15631 states to 15631 states and 22453 transitions. [2022-12-14 14:57:17,710 INFO L78 Accepts]: Start accepts. Automaton has 15631 states and 22453 transitions. Word has length 174 [2022-12-14 14:57:17,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:17,710 INFO L495 AbstractCegarLoop]: Abstraction has 15631 states and 22453 transitions. [2022-12-14 14:57:17,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 14:57:17,711 INFO L276 IsEmpty]: Start isEmpty. Operand 15631 states and 22453 transitions. [2022-12-14 14:57:17,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-12-14 14:57:17,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:17,714 INFO L195 NwaCegarLoop]: trace histogram [16, 14, 14, 14, 14, 14, 14, 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] [2022-12-14 14:57:17,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:57:17,714 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:57:17,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:17,715 INFO L85 PathProgramCache]: Analyzing trace with hash -2132846955, now seen corresponding path program 1 times [2022-12-14 14:57:17,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:17,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113018448] [2022-12-14 14:57:17,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:17,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:17,978 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-12-14 14:57:17,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:17,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113018448] [2022-12-14 14:57:17,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113018448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:17,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:17,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:57:17,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525341413] [2022-12-14 14:57:17,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:17,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:57:17,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:17,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:57:17,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:57:17,980 INFO L87 Difference]: Start difference. First operand 15631 states and 22453 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 14:57:20,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:22,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:26,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:26,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:26,946 INFO L93 Difference]: Finished difference Result 35426 states and 50868 transitions. [2022-12-14 14:57:26,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:57:26,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 179 [2022-12-14 14:57:26,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:27,009 INFO L225 Difference]: With dead ends: 35426 [2022-12-14 14:57:27,009 INFO L226 Difference]: Without dead ends: 19824 [2022-12-14 14:57:27,044 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 14:57:27,045 INFO L413 NwaCegarLoop]: 3583 mSDtfsCounter, 2915 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2915 SdHoareTripleChecker+Valid, 6329 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:27,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2915 Valid, 6329 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 768 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-12-14 14:57:27,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19824 states. [2022-12-14 14:57:27,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19824 to 19780. [2022-12-14 14:57:27,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19780 states, 11733 states have (on average 1.278530640075002) internal successors, (15001), 12028 states have internal predecessors, (15001), 6661 states have call successors, (6661), 1414 states have call predecessors, (6661), 1382 states have return successors, (6729), 6523 states have call predecessors, (6729), 6657 states have call successors, (6729) [2022-12-14 14:57:27,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19780 states to 19780 states and 28391 transitions. [2022-12-14 14:57:27,833 INFO L78 Accepts]: Start accepts. Automaton has 19780 states and 28391 transitions. Word has length 179 [2022-12-14 14:57:27,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:27,833 INFO L495 AbstractCegarLoop]: Abstraction has 19780 states and 28391 transitions. [2022-12-14 14:57:27,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 14:57:27,833 INFO L276 IsEmpty]: Start isEmpty. Operand 19780 states and 28391 transitions. [2022-12-14 14:57:27,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-12-14 14:57:27,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:27,836 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:57:27,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:57:27,836 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:57:27,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:27,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1360032482, now seen corresponding path program 1 times [2022-12-14 14:57:27,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:27,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108272880] [2022-12-14 14:57:27,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:27,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-12-14 14:57:28,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:28,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108272880] [2022-12-14 14:57:28,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108272880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:28,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:28,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:57:28,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625520158] [2022-12-14 14:57:28,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:28,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:57:28,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:28,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:57:28,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:57:28,043 INFO L87 Difference]: Start difference. First operand 19780 states and 28391 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 14:57:30,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:33,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:35,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:37,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:37,102 INFO L93 Difference]: Finished difference Result 47754 states and 68193 transitions. [2022-12-14 14:57:37,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:57:37,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2022-12-14 14:57:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:37,201 INFO L225 Difference]: With dead ends: 47754 [2022-12-14 14:57:37,201 INFO L226 Difference]: Without dead ends: 28003 [2022-12-14 14:57:37,280 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 14:57:37,281 INFO L413 NwaCegarLoop]: 3209 mSDtfsCounter, 1882 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 5893 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:37,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1882 Valid, 5893 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 798 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 14:57:37,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28003 states. [2022-12-14 14:57:38,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28003 to 27972. [2022-12-14 14:57:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27972 states, 16490 states have (on average 1.2663432383262583) internal successors, (20882), 16946 states have internal predecessors, (20882), 9372 states have call successors, (9372), 2168 states have call predecessors, (9372), 2106 states have return successors, (9498), 9126 states have call predecessors, (9498), 9368 states have call successors, (9498) [2022-12-14 14:57:38,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27972 states to 27972 states and 39752 transitions. [2022-12-14 14:57:38,292 INFO L78 Accepts]: Start accepts. Automaton has 27972 states and 39752 transitions. Word has length 183 [2022-12-14 14:57:38,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:38,293 INFO L495 AbstractCegarLoop]: Abstraction has 27972 states and 39752 transitions. [2022-12-14 14:57:38,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-12-14 14:57:38,293 INFO L276 IsEmpty]: Start isEmpty. Operand 27972 states and 39752 transitions. [2022-12-14 14:57:38,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-12-14 14:57:38,299 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:38,299 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:57:38,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:57:38,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:57:38,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:38,300 INFO L85 PathProgramCache]: Analyzing trace with hash 531724298, now seen corresponding path program 1 times [2022-12-14 14:57:38,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:38,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137158013] [2022-12-14 14:57:38,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:38,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 879 trivial. 0 not checked. [2022-12-14 14:57:38,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:38,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137158013] [2022-12-14 14:57:38,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137158013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:38,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:38,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:57:38,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105734245] [2022-12-14 14:57:38,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:38,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:57:38,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:38,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:57:38,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:57:38,816 INFO L87 Difference]: Start difference. First operand 27972 states and 39752 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 14:57:40,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:42,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:44,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:47,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:50,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:52,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:57:54,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:57:54,334 INFO L93 Difference]: Finished difference Result 38110 states and 53928 transitions. [2022-12-14 14:57:54,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:57:54,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 203 [2022-12-14 14:57:54,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:57:54,456 INFO L225 Difference]: With dead ends: 38110 [2022-12-14 14:57:54,456 INFO L226 Difference]: Without dead ends: 38108 [2022-12-14 14:57:54,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:57:54,476 INFO L413 NwaCegarLoop]: 3225 mSDtfsCounter, 1937 mSDsluCounter, 9140 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 12365 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:57:54,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1952 Valid, 12365 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1528 Invalid, 3 Unknown, 0 Unchecked, 14.5s Time] [2022-12-14 14:57:54,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38108 states. [2022-12-14 14:57:55,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38108 to 37758. [2022-12-14 14:57:55,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37758 states, 22196 states have (on average 1.2619390881239863) internal successors, (28010), 22827 states have internal predecessors, (28010), 12635 states have call successors, (12635), 3014 states have call predecessors, (12635), 2923 states have return successors, (12815), 12281 states have call predecessors, (12815), 12627 states have call successors, (12815) [2022-12-14 14:57:55,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37758 states to 37758 states and 53460 transitions. [2022-12-14 14:57:55,776 INFO L78 Accepts]: Start accepts. Automaton has 37758 states and 53460 transitions. Word has length 203 [2022-12-14 14:57:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:57:55,777 INFO L495 AbstractCegarLoop]: Abstraction has 37758 states and 53460 transitions. [2022-12-14 14:57:55,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 14:57:55,777 INFO L276 IsEmpty]: Start isEmpty. Operand 37758 states and 53460 transitions. [2022-12-14 14:57:55,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-12-14 14:57:55,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:57:55,780 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:57:55,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:57:55,780 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:57:55,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:57:55,781 INFO L85 PathProgramCache]: Analyzing trace with hash 186050033, now seen corresponding path program 1 times [2022-12-14 14:57:55,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:57:55,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856868671] [2022-12-14 14:57:55,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:57:55,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:57:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:57:56,105 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 879 trivial. 0 not checked. [2022-12-14 14:57:56,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:57:56,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856868671] [2022-12-14 14:57:56,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856868671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:57:56,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:57:56,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:57:56,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677913269] [2022-12-14 14:57:56,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:57:56,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:57:56,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:57:56,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:57:56,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:57:56,107 INFO L87 Difference]: Start difference. First operand 37758 states and 53460 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 14:57:59,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:02,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:04,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:06,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:08,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:10,222 WARN L539 Checker$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 14:58:13,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:14,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:14,770 INFO L93 Difference]: Finished difference Result 37771 states and 53469 transitions. [2022-12-14 14:58:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:58:14,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 208 [2022-12-14 14:58:14,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:14,896 INFO L225 Difference]: With dead ends: 37771 [2022-12-14 14:58:14,896 INFO L226 Difference]: Without dead ends: 37769 [2022-12-14 14:58:14,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:58:14,918 INFO L413 NwaCegarLoop]: 3223 mSDtfsCounter, 1932 mSDsluCounter, 9130 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 12353 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:14,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 12353 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1529 Invalid, 4 Unknown, 0 Unchecked, 17.7s Time] [2022-12-14 14:58:14,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37769 states. [2022-12-14 14:58:16,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37769 to 37762. [2022-12-14 14:58:16,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37762 states, 22199 states have (on average 1.2619036893553763) internal successors, (28013), 22830 states have internal predecessors, (28013), 12635 states have call successors, (12635), 3015 states have call predecessors, (12635), 2924 states have return successors, (12815), 12281 states have call predecessors, (12815), 12627 states have call successors, (12815) [2022-12-14 14:58:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37762 states to 37762 states and 53463 transitions. [2022-12-14 14:58:16,228 INFO L78 Accepts]: Start accepts. Automaton has 37762 states and 53463 transitions. Word has length 208 [2022-12-14 14:58:16,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:16,228 INFO L495 AbstractCegarLoop]: Abstraction has 37762 states and 53463 transitions. [2022-12-14 14:58:16,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 14:58:16,229 INFO L276 IsEmpty]: Start isEmpty. Operand 37762 states and 53463 transitions. [2022-12-14 14:58:16,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-12-14 14:58:16,232 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:16,232 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:16,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:58:16,232 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:58:16,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:16,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1517500231, now seen corresponding path program 1 times [2022-12-14 14:58:16,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:58:16,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155917755] [2022-12-14 14:58:16,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:16,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:58:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:16,598 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2022-12-14 14:58:16,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:58:16,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155917755] [2022-12-14 14:58:16,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155917755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:16,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:16,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:58:16,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571150228] [2022-12-14 14:58:16,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:16,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:58:16,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:58:16,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:58:16,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:58:16,599 INFO L87 Difference]: Start difference. First operand 37762 states and 53463 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 14:58:18,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:20,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:22,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:25,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:27,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:29,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:33,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:34,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:34,490 INFO L93 Difference]: Finished difference Result 37775 states and 53472 transitions. [2022-12-14 14:58:34,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:58:34,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 217 [2022-12-14 14:58:34,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:34,605 INFO L225 Difference]: With dead ends: 37775 [2022-12-14 14:58:34,605 INFO L226 Difference]: Without dead ends: 37773 [2022-12-14 14:58:34,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:58:34,623 INFO L413 NwaCegarLoop]: 3228 mSDtfsCounter, 1931 mSDsluCounter, 9140 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 12368 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:34,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 12368 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1531 Invalid, 2 Unknown, 0 Unchecked, 17.0s Time] [2022-12-14 14:58:34,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37773 states. [2022-12-14 14:58:35,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37773 to 37766. [2022-12-14 14:58:35,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37766 states, 22202 states have (on average 1.2618683001531394) internal successors, (28016), 22833 states have internal predecessors, (28016), 12635 states have call successors, (12635), 3016 states have call predecessors, (12635), 2925 states have return successors, (12815), 12281 states have call predecessors, (12815), 12627 states have call successors, (12815) [2022-12-14 14:58:35,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37766 states to 37766 states and 53466 transitions. [2022-12-14 14:58:35,959 INFO L78 Accepts]: Start accepts. Automaton has 37766 states and 53466 transitions. Word has length 217 [2022-12-14 14:58:35,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:35,960 INFO L495 AbstractCegarLoop]: Abstraction has 37766 states and 53466 transitions. [2022-12-14 14:58:35,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 14:58:35,960 INFO L276 IsEmpty]: Start isEmpty. Operand 37766 states and 53466 transitions. [2022-12-14 14:58:35,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-12-14 14:58:35,964 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:35,964 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:35,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:58:35,964 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:58:35,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:35,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1226419116, now seen corresponding path program 1 times [2022-12-14 14:58:35,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:58:35,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213910822] [2022-12-14 14:58:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:35,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:58:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:36,281 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2022-12-14 14:58:36,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:58:36,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213910822] [2022-12-14 14:58:36,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213910822] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:36,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:36,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:58:36,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187611594] [2022-12-14 14:58:36,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:36,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:58:36,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:58:36,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:58:36,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:58:36,283 INFO L87 Difference]: Start difference. First operand 37766 states and 53466 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 14:58:38,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:40,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:44,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:47,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:49,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:52,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:52,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:58:52,962 INFO L93 Difference]: Finished difference Result 37779 states and 53475 transitions. [2022-12-14 14:58:52,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:58:52,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 222 [2022-12-14 14:58:52,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:58:53,069 INFO L225 Difference]: With dead ends: 37779 [2022-12-14 14:58:53,069 INFO L226 Difference]: Without dead ends: 37777 [2022-12-14 14:58:53,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:58:53,086 INFO L413 NwaCegarLoop]: 3226 mSDtfsCounter, 1931 mSDsluCounter, 9136 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 12362 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:58:53,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 12362 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1531 Invalid, 2 Unknown, 0 Unchecked, 15.8s Time] [2022-12-14 14:58:53,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37777 states. [2022-12-14 14:58:54,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37777 to 37770. [2022-12-14 14:58:54,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37770 states, 22205 states have (on average 1.2618329205133978) internal successors, (28019), 22836 states have internal predecessors, (28019), 12635 states have call successors, (12635), 3017 states have call predecessors, (12635), 2926 states have return successors, (12815), 12281 states have call predecessors, (12815), 12627 states have call successors, (12815) [2022-12-14 14:58:54,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37770 states to 37770 states and 53469 transitions. [2022-12-14 14:58:54,443 INFO L78 Accepts]: Start accepts. Automaton has 37770 states and 53469 transitions. Word has length 222 [2022-12-14 14:58:54,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:58:54,444 INFO L495 AbstractCegarLoop]: Abstraction has 37770 states and 53469 transitions. [2022-12-14 14:58:54,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 14:58:54,444 INFO L276 IsEmpty]: Start isEmpty. Operand 37770 states and 53469 transitions. [2022-12-14 14:58:54,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-12-14 14:58:54,447 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:58:54,447 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:58:54,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 14:58:54,448 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:58:54,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:58:54,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1121358041, now seen corresponding path program 1 times [2022-12-14 14:58:54,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:58:54,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954611738] [2022-12-14 14:58:54,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:58:54,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:58:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:58:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 919 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2022-12-14 14:58:54,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:58:54,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954611738] [2022-12-14 14:58:54,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954611738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:58:54,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:58:54,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:58:54,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285282343] [2022-12-14 14:58:54,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:58:54,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:58:54,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:58:54,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:58:54,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:58:54,786 INFO L87 Difference]: Start difference. First operand 37770 states and 53469 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 14:58:58,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:58:59,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:02,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:04,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:07,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:09,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:09,581 INFO L93 Difference]: Finished difference Result 37783 states and 53478 transitions. [2022-12-14 14:59:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:59:09,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 227 [2022-12-14 14:59:09,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:09,683 INFO L225 Difference]: With dead ends: 37783 [2022-12-14 14:59:09,683 INFO L226 Difference]: Without dead ends: 37781 [2022-12-14 14:59:09,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:59:09,699 INFO L413 NwaCegarLoop]: 3228 mSDtfsCounter, 1931 mSDsluCounter, 9140 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 12368 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:09,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1942 Valid, 12368 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1528 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2022-12-14 14:59:09,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37781 states. [2022-12-14 14:59:10,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37781 to 37774. [2022-12-14 14:59:10,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37774 states, 22208 states have (on average 1.2617975504322767) internal successors, (28022), 22839 states have internal predecessors, (28022), 12635 states have call successors, (12635), 3018 states have call predecessors, (12635), 2927 states have return successors, (12815), 12281 states have call predecessors, (12815), 12627 states have call successors, (12815) [2022-12-14 14:59:11,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37774 states to 37774 states and 53472 transitions. [2022-12-14 14:59:11,101 INFO L78 Accepts]: Start accepts. Automaton has 37774 states and 53472 transitions. Word has length 227 [2022-12-14 14:59:11,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:59:11,101 INFO L495 AbstractCegarLoop]: Abstraction has 37774 states and 53472 transitions. [2022-12-14 14:59:11,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 14:59:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 37774 states and 53472 transitions. [2022-12-14 14:59:11,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-12-14 14:59:11,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:59:11,106 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:59:11,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 14:59:11,106 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:59:11,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:59:11,107 INFO L85 PathProgramCache]: Analyzing trace with hash -967897366, now seen corresponding path program 1 times [2022-12-14 14:59:11,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:59:11,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694156887] [2022-12-14 14:59:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:11,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:59:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 936 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 926 trivial. 0 not checked. [2022-12-14 14:59:11,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:59:11,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694156887] [2022-12-14 14:59:11,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694156887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:59:11,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:59:11,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:59:11,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527938713] [2022-12-14 14:59:11,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:59:11,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:59:11,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:59:11,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:59:11,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:59:11,403 INFO L87 Difference]: Start difference. First operand 37774 states and 53472 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 14:59:13,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:15,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:18,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:20,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:22,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:25,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:27,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:28,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:28,552 INFO L93 Difference]: Finished difference Result 37787 states and 53481 transitions. [2022-12-14 14:59:28,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:59:28,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 231 [2022-12-14 14:59:28,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:28,657 INFO L225 Difference]: With dead ends: 37787 [2022-12-14 14:59:28,657 INFO L226 Difference]: Without dead ends: 37785 [2022-12-14 14:59:28,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:59:28,690 INFO L413 NwaCegarLoop]: 3226 mSDtfsCounter, 1931 mSDsluCounter, 9136 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 12362 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:28,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1941 Valid, 12362 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1531 Invalid, 2 Unknown, 0 Unchecked, 16.2s Time] [2022-12-14 14:59:28,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37785 states. [2022-12-14 14:59:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37785 to 37778. [2022-12-14 14:59:30,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37778 states, 22211 states have (on average 1.2617621899059024) internal successors, (28025), 22842 states have internal predecessors, (28025), 12635 states have call successors, (12635), 3019 states have call predecessors, (12635), 2928 states have return successors, (12815), 12281 states have call predecessors, (12815), 12627 states have call successors, (12815) [2022-12-14 14:59:30,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37778 states to 37778 states and 53475 transitions. [2022-12-14 14:59:30,130 INFO L78 Accepts]: Start accepts. Automaton has 37778 states and 53475 transitions. Word has length 231 [2022-12-14 14:59:30,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:59:30,131 INFO L495 AbstractCegarLoop]: Abstraction has 37778 states and 53475 transitions. [2022-12-14 14:59:30,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 14:59:30,131 INFO L276 IsEmpty]: Start isEmpty. Operand 37778 states and 53475 transitions. [2022-12-14 14:59:30,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-12-14 14:59:30,135 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:59:30,135 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 7, 6, 6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:59:30,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 14:59:30,136 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:59:30,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:59:30,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1096089351, now seen corresponding path program 1 times [2022-12-14 14:59:30,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:59:30,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190053047] [2022-12-14 14:59:30,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:30,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:59:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 947 trivial. 0 not checked. [2022-12-14 14:59:30,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:59:30,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190053047] [2022-12-14 14:59:30,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190053047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:59:30,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:59:30,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:59:30,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294771421] [2022-12-14 14:59:30,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:59:30,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:59:30,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:59:30,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:59:30,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:59:30,521 INFO L87 Difference]: Start difference. First operand 37778 states and 53475 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 14:59:32,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:34,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:36,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:39,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:41,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:43,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:46,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:50,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:52,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:59:52,053 INFO L93 Difference]: Finished difference Result 37791 states and 53484 transitions. [2022-12-14 14:59:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:59:52,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 237 [2022-12-14 14:59:52,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:59:52,158 INFO L225 Difference]: With dead ends: 37791 [2022-12-14 14:59:52,158 INFO L226 Difference]: Without dead ends: 37789 [2022-12-14 14:59:52,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:59:52,173 INFO L413 NwaCegarLoop]: 3223 mSDtfsCounter, 1931 mSDsluCounter, 9130 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 12353 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:59:52,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 12353 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1529 Invalid, 5 Unknown, 0 Unchecked, 20.4s Time] [2022-12-14 14:59:52,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37789 states. [2022-12-14 14:59:53,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37789 to 37782. [2022-12-14 14:59:53,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37782 states, 22214 states have (on average 1.2617268389304042) internal successors, (28028), 22845 states have internal predecessors, (28028), 12635 states have call successors, (12635), 3020 states have call predecessors, (12635), 2929 states have return successors, (12815), 12281 states have call predecessors, (12815), 12627 states have call successors, (12815) [2022-12-14 14:59:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37782 states to 37782 states and 53478 transitions. [2022-12-14 14:59:53,655 INFO L78 Accepts]: Start accepts. Automaton has 37782 states and 53478 transitions. Word has length 237 [2022-12-14 14:59:53,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:59:53,655 INFO L495 AbstractCegarLoop]: Abstraction has 37782 states and 53478 transitions. [2022-12-14 14:59:53,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 14:59:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 37782 states and 53478 transitions. [2022-12-14 14:59:53,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-12-14 14:59:53,660 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:59:53,660 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 8, 7, 7, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:59:53,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 14:59:53,660 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 14:59:53,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:59:53,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1722605322, now seen corresponding path program 1 times [2022-12-14 14:59:53,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:59:53,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332629381] [2022-12-14 14:59:53,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:59:53,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:59:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:59:53,946 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-12-14 14:59:53,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:59:53,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332629381] [2022-12-14 14:59:53,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332629381] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:59:53,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:59:53,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:59:53,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095987190] [2022-12-14 14:59:53,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:59:53,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:59:53,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:59:53,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:59:53,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:59:53,948 INFO L87 Difference]: Start difference. First operand 37782 states and 53478 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 14:59:56,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:59:59,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:02,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:05,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:06,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:08,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:10,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:14,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:15,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:17,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:00:17,108 INFO L93 Difference]: Finished difference Result 37795 states and 53487 transitions. [2022-12-14 15:00:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:00:17,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 241 [2022-12-14 15:00:17,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:00:17,228 INFO L225 Difference]: With dead ends: 37795 [2022-12-14 15:00:17,228 INFO L226 Difference]: Without dead ends: 37793 [2022-12-14 15:00:17,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:00:17,240 INFO L413 NwaCegarLoop]: 3226 mSDtfsCounter, 1931 mSDsluCounter, 9136 mSDsCounter, 0 mSdLazyCounter, 1531 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 12362 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1531 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:00:17,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1939 Valid, 12362 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1531 Invalid, 3 Unknown, 0 Unchecked, 21.8s Time] [2022-12-14 15:00:17,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37793 states. [2022-12-14 15:00:18,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37793 to 37786. [2022-12-14 15:00:18,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37786 states, 22217 states have (on average 1.261691497501913) internal successors, (28031), 22848 states have internal predecessors, (28031), 12635 states have call successors, (12635), 3021 states have call predecessors, (12635), 2930 states have return successors, (12815), 12281 states have call predecessors, (12815), 12627 states have call successors, (12815) [2022-12-14 15:00:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37786 states to 37786 states and 53481 transitions. [2022-12-14 15:00:18,759 INFO L78 Accepts]: Start accepts. Automaton has 37786 states and 53481 transitions. Word has length 241 [2022-12-14 15:00:18,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:00:18,760 INFO L495 AbstractCegarLoop]: Abstraction has 37786 states and 53481 transitions. [2022-12-14 15:00:18,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 15:00:18,760 INFO L276 IsEmpty]: Start isEmpty. Operand 37786 states and 53481 transitions. [2022-12-14 15:00:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-12-14 15:00:18,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:00:18,765 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:00:18,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 15:00:18,765 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:00:18,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:00:18,765 INFO L85 PathProgramCache]: Analyzing trace with hash 486503871, now seen corresponding path program 1 times [2022-12-14 15:00:18,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:00:18,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419353389] [2022-12-14 15:00:18,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:00:18,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:00:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:00:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 983 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked. [2022-12-14 15:00:19,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:00:19,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419353389] [2022-12-14 15:00:19,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419353389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:00:19,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:00:19,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:00:19,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525356132] [2022-12-14 15:00:19,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:00:19,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:00:19,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:00:19,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:00:19,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:00:19,153 INFO L87 Difference]: Start difference. First operand 37786 states and 53481 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 15:00:22,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:25,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:28,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:30,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:35,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:37,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:39,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:00:39,645 INFO L93 Difference]: Finished difference Result 62864 states and 89196 transitions. [2022-12-14 15:00:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:00:39,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 236 [2022-12-14 15:00:39,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:00:39,857 INFO L225 Difference]: With dead ends: 62864 [2022-12-14 15:00:39,857 INFO L226 Difference]: Without dead ends: 62862 [2022-12-14 15:00:39,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:00:39,889 INFO L413 NwaCegarLoop]: 4060 mSDtfsCounter, 2852 mSDsluCounter, 10808 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2853 SdHoareTripleChecker+Valid, 14868 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:00:39,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2853 Valid, 14868 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1897 Invalid, 4 Unknown, 0 Unchecked, 18.1s Time] [2022-12-14 15:00:39,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62862 states. [2022-12-14 15:00:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62862 to 62814. [2022-12-14 15:00:42,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62814 states, 37049 states have (on average 1.2646495182056197) internal successors, (46854), 38130 states have internal predecessors, (46854), 20968 states have call successors, (20968), 4968 states have call predecessors, (20968), 4793 states have return successors, (21292), 20308 states have call predecessors, (21292), 20960 states have call successors, (21292) [2022-12-14 15:00:42,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62814 states to 62814 states and 89114 transitions. [2022-12-14 15:00:42,556 INFO L78 Accepts]: Start accepts. Automaton has 62814 states and 89114 transitions. Word has length 236 [2022-12-14 15:00:42,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:00:42,556 INFO L495 AbstractCegarLoop]: Abstraction has 62814 states and 89114 transitions. [2022-12-14 15:00:42,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 15:00:42,556 INFO L276 IsEmpty]: Start isEmpty. Operand 62814 states and 89114 transitions. [2022-12-14 15:00:42,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-12-14 15:00:42,562 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:00:42,562 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 9, 8, 8, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:00:42,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 15:00:42,562 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:00:42,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:00:42,563 INFO L85 PathProgramCache]: Analyzing trace with hash -165157145, now seen corresponding path program 1 times [2022-12-14 15:00:42,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:00:42,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401122609] [2022-12-14 15:00:42,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:00:42,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:00:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:00:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2022-12-14 15:00:42,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:00:42,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401122609] [2022-12-14 15:00:42,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401122609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:00:42,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:00:42,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:00:42,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880963748] [2022-12-14 15:00:42,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:00:42,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:00:42,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:00:42,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:00:42,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:00:42,839 INFO L87 Difference]: Start difference. First operand 62814 states and 89114 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 15:00:45,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:46,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:49,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:51,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:53,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:55,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:00:57,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:00,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:03,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:04,801 INFO L93 Difference]: Finished difference Result 62872 states and 89183 transitions. [2022-12-14 15:01:04,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:01:04,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 247 [2022-12-14 15:01:04,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:04,985 INFO L225 Difference]: With dead ends: 62872 [2022-12-14 15:01:04,985 INFO L226 Difference]: Without dead ends: 62870 [2022-12-14 15:01:05,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:01:05,006 INFO L413 NwaCegarLoop]: 4063 mSDtfsCounter, 2853 mSDsluCounter, 10793 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 14856 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:05,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2860 Valid, 14856 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1915 Invalid, 4 Unknown, 0 Unchecked, 20.2s Time] [2022-12-14 15:01:05,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62870 states. [2022-12-14 15:01:07,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62870 to 62845. [2022-12-14 15:01:07,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62845 states, 37058 states have (on average 1.2646122294781155) internal successors, (46864), 38139 states have internal predecessors, (46864), 20987 states have call successors, (20987), 4972 states have call predecessors, (20987), 4796 states have return successors, (21307), 20326 states have call predecessors, (21307), 20975 states have call successors, (21307) [2022-12-14 15:01:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62845 states to 62845 states and 89158 transitions. [2022-12-14 15:01:07,455 INFO L78 Accepts]: Start accepts. Automaton has 62845 states and 89158 transitions. Word has length 247 [2022-12-14 15:01:07,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:07,455 INFO L495 AbstractCegarLoop]: Abstraction has 62845 states and 89158 transitions. [2022-12-14 15:01:07,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 15:01:07,455 INFO L276 IsEmpty]: Start isEmpty. Operand 62845 states and 89158 transitions. [2022-12-14 15:01:07,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-12-14 15:01:07,461 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:07,462 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 10, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:07,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 15:01:07,462 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:01:07,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:07,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1782643855, now seen corresponding path program 1 times [2022-12-14 15:01:07,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:07,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188238779] [2022-12-14 15:01:07,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:07,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:07,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1023 trivial. 0 not checked. [2022-12-14 15:01:07,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:07,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188238779] [2022-12-14 15:01:07,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188238779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:07,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:07,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:01:07,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562902491] [2022-12-14 15:01:07,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:07,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:01:07,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:07,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:01:07,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:01:07,716 INFO L87 Difference]: Start difference. First operand 62845 states and 89158 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 15:01:10,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:12,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:15,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:17,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:22,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:22,157 INFO L93 Difference]: Finished difference Result 62856 states and 89166 transitions. [2022-12-14 15:01:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:01:22,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 248 [2022-12-14 15:01:22,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:22,363 INFO L225 Difference]: With dead ends: 62856 [2022-12-14 15:01:22,363 INFO L226 Difference]: Without dead ends: 62854 [2022-12-14 15:01:22,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:01:22,391 INFO L413 NwaCegarLoop]: 3243 mSDtfsCounter, 1930 mSDsluCounter, 9170 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 12413 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:22,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 12413 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1540 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2022-12-14 15:01:22,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62854 states. [2022-12-14 15:01:24,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62854 to 62849. [2022-12-14 15:01:24,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62849 states, 37061 states have (on average 1.2645908097460943) internal successors, (46867), 38142 states have internal predecessors, (46867), 20987 states have call successors, (20987), 4973 states have call predecessors, (20987), 4797 states have return successors, (21307), 20326 states have call predecessors, (21307), 20975 states have call successors, (21307) [2022-12-14 15:01:24,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62849 states to 62849 states and 89161 transitions. [2022-12-14 15:01:24,963 INFO L78 Accepts]: Start accepts. Automaton has 62849 states and 89161 transitions. Word has length 248 [2022-12-14 15:01:24,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:24,963 INFO L495 AbstractCegarLoop]: Abstraction has 62849 states and 89161 transitions. [2022-12-14 15:01:24,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 15:01:24,963 INFO L276 IsEmpty]: Start isEmpty. Operand 62849 states and 89161 transitions. [2022-12-14 15:01:24,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-12-14 15:01:24,970 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:24,970 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 11, 10, 10, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:24,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 15:01:24,970 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:01:24,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:24,971 INFO L85 PathProgramCache]: Analyzing trace with hash 341059271, now seen corresponding path program 1 times [2022-12-14 15:01:24,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:24,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172312968] [2022-12-14 15:01:24,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:24,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1087 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2022-12-14 15:01:25,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:25,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172312968] [2022-12-14 15:01:25,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172312968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:25,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:25,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:01:25,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329668250] [2022-12-14 15:01:25,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:25,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:01:25,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:25,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:01:25,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:01:25,245 INFO L87 Difference]: Start difference. First operand 62849 states and 89161 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 15:01:27,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:28,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:30,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:33,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:35,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:37,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:39,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:41,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:45,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:47,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:47,001 INFO L93 Difference]: Finished difference Result 62860 states and 89169 transitions. [2022-12-14 15:01:47,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:01:47,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 257 [2022-12-14 15:01:47,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:47,196 INFO L225 Difference]: With dead ends: 62860 [2022-12-14 15:01:47,196 INFO L226 Difference]: Without dead ends: 62858 [2022-12-14 15:01:47,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:01:47,221 INFO L413 NwaCegarLoop]: 3243 mSDtfsCounter, 1929 mSDsluCounter, 9170 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 12413 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:47,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 12413 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1540 Invalid, 5 Unknown, 0 Unchecked, 19.9s Time] [2022-12-14 15:01:47,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62858 states. [2022-12-14 15:01:49,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62858 to 62853. [2022-12-14 15:01:49,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62853 states, 37064 states have (on average 1.2645693934815454) internal successors, (46870), 38145 states have internal predecessors, (46870), 20987 states have call successors, (20987), 4974 states have call predecessors, (20987), 4798 states have return successors, (21307), 20326 states have call predecessors, (21307), 20975 states have call successors, (21307) [2022-12-14 15:01:49,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62853 states to 62853 states and 89164 transitions. [2022-12-14 15:01:49,830 INFO L78 Accepts]: Start accepts. Automaton has 62853 states and 89164 transitions. Word has length 257 [2022-12-14 15:01:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:49,831 INFO L495 AbstractCegarLoop]: Abstraction has 62853 states and 89164 transitions. [2022-12-14 15:01:49,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 15:01:49,831 INFO L276 IsEmpty]: Start isEmpty. Operand 62853 states and 89164 transitions. [2022-12-14 15:01:49,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-12-14 15:01:49,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:49,839 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 12, 11, 11, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:49,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 15:01:49,839 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:01:49,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:49,840 INFO L85 PathProgramCache]: Analyzing trace with hash 403347274, now seen corresponding path program 1 times [2022-12-14 15:01:49,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:49,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484985505] [2022-12-14 15:01:49,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:49,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2022-12-14 15:01:50,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:50,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484985505] [2022-12-14 15:01:50,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484985505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:50,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:50,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:01:50,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748206519] [2022-12-14 15:01:50,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:50,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:01:50,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:50,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:01:50,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:01:50,097 INFO L87 Difference]: Start difference. First operand 62853 states and 89164 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 15:01:54,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:57,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:01:59,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:03,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:05,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:05,046 INFO L93 Difference]: Finished difference Result 62864 states and 89172 transitions. [2022-12-14 15:02:05,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:02:05,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 261 [2022-12-14 15:02:05,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:05,233 INFO L225 Difference]: With dead ends: 62864 [2022-12-14 15:02:05,233 INFO L226 Difference]: Without dead ends: 62862 [2022-12-14 15:02:05,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:02:05,256 INFO L413 NwaCegarLoop]: 3243 mSDtfsCounter, 1929 mSDsluCounter, 9170 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 12413 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:05,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1933 Valid, 12413 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1540 Invalid, 2 Unknown, 0 Unchecked, 13.2s Time] [2022-12-14 15:02:05,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62862 states. [2022-12-14 15:02:07,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62862 to 62857. [2022-12-14 15:02:07,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62857 states, 37067 states have (on average 1.2645479806836268) internal successors, (46873), 38148 states have internal predecessors, (46873), 20987 states have call successors, (20987), 4975 states have call predecessors, (20987), 4799 states have return successors, (21307), 20326 states have call predecessors, (21307), 20975 states have call successors, (21307) [2022-12-14 15:02:07,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62857 states to 62857 states and 89167 transitions. [2022-12-14 15:02:07,883 INFO L78 Accepts]: Start accepts. Automaton has 62857 states and 89167 transitions. Word has length 261 [2022-12-14 15:02:07,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:07,884 INFO L495 AbstractCegarLoop]: Abstraction has 62857 states and 89167 transitions. [2022-12-14 15:02:07,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 15:02:07,884 INFO L276 IsEmpty]: Start isEmpty. Operand 62857 states and 89167 transitions. [2022-12-14 15:02:07,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-12-14 15:02:07,893 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:07,893 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 13, 12, 12, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:07,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 15:02:07,893 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:02:07,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:07,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1223732239, now seen corresponding path program 1 times [2022-12-14 15:02:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:07,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232395890] [2022-12-14 15:02:07,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:07,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:08,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1174 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1150 trivial. 0 not checked. [2022-12-14 15:02:08,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:08,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232395890] [2022-12-14 15:02:08,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232395890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:08,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:08,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:02:08,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769830693] [2022-12-14 15:02:08,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:08,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:02:08,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:08,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:02:08,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:02:08,149 INFO L87 Difference]: Start difference. First operand 62857 states and 89167 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 15:02:10,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:12,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:15,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:17,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:18,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:19,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:21,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:25,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:26,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:26,851 INFO L93 Difference]: Finished difference Result 62868 states and 89175 transitions. [2022-12-14 15:02:26,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:02:26,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 266 [2022-12-14 15:02:26,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:27,047 INFO L225 Difference]: With dead ends: 62868 [2022-12-14 15:02:27,047 INFO L226 Difference]: Without dead ends: 62866 [2022-12-14 15:02:27,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:02:27,072 INFO L413 NwaCegarLoop]: 3243 mSDtfsCounter, 1929 mSDsluCounter, 9170 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 12413 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:27,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1932 Valid, 12413 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1544 Invalid, 1 Unknown, 0 Unchecked, 16.8s Time] [2022-12-14 15:02:27,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62866 states. [2022-12-14 15:02:29,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62866 to 62861. [2022-12-14 15:02:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62861 states, 37070 states have (on average 1.2645265713514973) internal successors, (46876), 38151 states have internal predecessors, (46876), 20987 states have call successors, (20987), 4976 states have call predecessors, (20987), 4800 states have return successors, (21307), 20326 states have call predecessors, (21307), 20975 states have call successors, (21307) [2022-12-14 15:02:29,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62861 states to 62861 states and 89170 transitions. [2022-12-14 15:02:29,713 INFO L78 Accepts]: Start accepts. Automaton has 62861 states and 89170 transitions. Word has length 266 [2022-12-14 15:02:29,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:29,713 INFO L495 AbstractCegarLoop]: Abstraction has 62861 states and 89170 transitions. [2022-12-14 15:02:29,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 15:02:29,714 INFO L276 IsEmpty]: Start isEmpty. Operand 62861 states and 89170 transitions. [2022-12-14 15:02:29,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-12-14 15:02:29,723 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:29,723 INFO L195 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 14, 13, 13, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:29,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 15:02:29,723 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:02:29,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:29,724 INFO L85 PathProgramCache]: Analyzing trace with hash -961118358, now seen corresponding path program 1 times [2022-12-14 15:02:29,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:29,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181745811] [2022-12-14 15:02:29,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:29,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:30,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1198 trivial. 0 not checked. [2022-12-14 15:02:30,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:30,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181745811] [2022-12-14 15:02:30,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181745811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:30,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:30,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:02:30,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734539992] [2022-12-14 15:02:30,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:30,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:02:30,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:30,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:02:30,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:02:30,019 INFO L87 Difference]: Start difference. First operand 62861 states and 89170 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 15:02:33,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:36,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:38,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:42,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:42,881 INFO L93 Difference]: Finished difference Result 62872 states and 89178 transitions. [2022-12-14 15:02:42,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:02:42,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 271 [2022-12-14 15:02:42,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:43,076 INFO L225 Difference]: With dead ends: 62872 [2022-12-14 15:02:43,076 INFO L226 Difference]: Without dead ends: 62870 [2022-12-14 15:02:43,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:02:43,101 INFO L413 NwaCegarLoop]: 3243 mSDtfsCounter, 1929 mSDsluCounter, 9170 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 12413 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:43,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 12413 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1540 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2022-12-14 15:02:43,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62870 states. [2022-12-14 15:02:45,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62870 to 62865. [2022-12-14 15:02:45,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62865 states, 37073 states have (on average 1.2645051654843147) internal successors, (46879), 38154 states have internal predecessors, (46879), 20987 states have call successors, (20987), 4977 states have call predecessors, (20987), 4801 states have return successors, (21307), 20326 states have call predecessors, (21307), 20975 states have call successors, (21307) [2022-12-14 15:02:45,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62865 states to 62865 states and 89173 transitions. [2022-12-14 15:02:45,789 INFO L78 Accepts]: Start accepts. Automaton has 62865 states and 89173 transitions. Word has length 271 [2022-12-14 15:02:45,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:45,789 INFO L495 AbstractCegarLoop]: Abstraction has 62865 states and 89173 transitions. [2022-12-14 15:02:45,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 15:02:45,789 INFO L276 IsEmpty]: Start isEmpty. Operand 62865 states and 89173 transitions. [2022-12-14 15:02:45,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-12-14 15:02:45,799 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:45,799 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:45,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 15:02:45,799 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:02:45,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:45,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1526737546, now seen corresponding path program 1 times [2022-12-14 15:02:45,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:45,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850504133] [2022-12-14 15:02:45,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:45,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:46,044 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2022-12-14 15:02:46,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:46,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850504133] [2022-12-14 15:02:46,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850504133] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:46,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:46,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:02:46,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773080907] [2022-12-14 15:02:46,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:46,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:02:46,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:46,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:02:46,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:02:46,046 INFO L87 Difference]: Start difference. First operand 62865 states and 89173 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2022-12-14 15:02:48,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:51,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:53,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:02:56,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:56,774 INFO L93 Difference]: Finished difference Result 126051 states and 181488 transitions. [2022-12-14 15:02:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:02:56,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 270 [2022-12-14 15:02:56,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:57,037 INFO L225 Difference]: With dead ends: 126051 [2022-12-14 15:02:57,037 INFO L226 Difference]: Without dead ends: 63233 [2022-12-14 15:02:57,203 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 15:02:57,203 INFO L413 NwaCegarLoop]: 2748 mSDtfsCounter, 5 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5491 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:57,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5491 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 754 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 15:02:57,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63233 states. [2022-12-14 15:03:00,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63233 to 62911. [2022-12-14 15:03:00,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62911 states, 37119 states have (on average 1.2641773754680892) internal successors, (46925), 38200 states have internal predecessors, (46925), 20987 states have call successors, (20987), 4977 states have call predecessors, (20987), 4801 states have return successors, (21307), 20326 states have call predecessors, (21307), 20975 states have call successors, (21307) [2022-12-14 15:03:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62911 states to 62911 states and 89219 transitions. [2022-12-14 15:03:00,367 INFO L78 Accepts]: Start accepts. Automaton has 62911 states and 89219 transitions. Word has length 270 [2022-12-14 15:03:00,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:00,367 INFO L495 AbstractCegarLoop]: Abstraction has 62911 states and 89219 transitions. [2022-12-14 15:03:00,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2022-12-14 15:03:00,368 INFO L276 IsEmpty]: Start isEmpty. Operand 62911 states and 89219 transitions. [2022-12-14 15:03:00,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-12-14 15:03:00,381 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:00,381 INFO L195 NwaCegarLoop]: trace histogram [18, 15, 14, 14, 14, 14, 14, 14, 14, 14, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:00,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 15:03:00,381 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:03:00,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:00,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1771458735, now seen corresponding path program 1 times [2022-12-14 15:03:00,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:03:00,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379201879] [2022-12-14 15:03:00,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:00,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:03:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1278 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2022-12-14 15:03:00,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:03:00,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379201879] [2022-12-14 15:03:00,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379201879] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:00,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:00,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:03:00,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580509045] [2022-12-14 15:03:00,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:00,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:03:00,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:03:00,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:03:00,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:03:00,752 INFO L87 Difference]: Start difference. First operand 62911 states and 89219 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 15:03:05,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:08,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:10,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:14,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:16,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:16,504 INFO L93 Difference]: Finished difference Result 62922 states and 89227 transitions. [2022-12-14 15:03:16,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:03:16,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 276 [2022-12-14 15:03:16,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:16,721 INFO L225 Difference]: With dead ends: 62922 [2022-12-14 15:03:16,722 INFO L226 Difference]: Without dead ends: 62918 [2022-12-14 15:03:16,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:03:16,749 INFO L413 NwaCegarLoop]: 3243 mSDtfsCounter, 1929 mSDsluCounter, 9170 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 12413 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:16,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1930 Valid, 12413 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1538 Invalid, 4 Unknown, 0 Unchecked, 13.6s Time] [2022-12-14 15:03:16,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62918 states. [2022-12-14 15:03:19,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62918 to 62913. [2022-12-14 15:03:19,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62913 states, 37121 states have (on average 1.2641362032272838) internal successors, (46926), 38201 states have internal predecessors, (46926), 20987 states have call successors, (20987), 4978 states have call predecessors, (20987), 4801 states have return successors, (21307), 20326 states have call predecessors, (21307), 20975 states have call successors, (21307) [2022-12-14 15:03:19,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62913 states to 62913 states and 89220 transitions. [2022-12-14 15:03:19,495 INFO L78 Accepts]: Start accepts. Automaton has 62913 states and 89220 transitions. Word has length 276 [2022-12-14 15:03:19,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:19,495 INFO L495 AbstractCegarLoop]: Abstraction has 62913 states and 89220 transitions. [2022-12-14 15:03:19,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (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 15:03:19,495 INFO L276 IsEmpty]: Start isEmpty. Operand 62913 states and 89220 transitions. [2022-12-14 15:03:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-12-14 15:03:19,505 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:19,505 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 15, 15, 14, 14, 14, 14, 14, 14, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:19,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 15:03:19,505 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:03:19,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:19,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2136688017, now seen corresponding path program 1 times [2022-12-14 15:03:19,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:03:19,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607786880] [2022-12-14 15:03:19,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:19,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:03:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:19,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1329 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1299 trivial. 0 not checked. [2022-12-14 15:03:19,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:03:19,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607786880] [2022-12-14 15:03:19,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607786880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:19,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:19,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:03:19,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060649206] [2022-12-14 15:03:19,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:19,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:03:19,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:03:19,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:03:19,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:03:19,785 INFO L87 Difference]: Start difference. First operand 62913 states and 89220 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 15:03:25,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:28,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:34,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:34,159 INFO L93 Difference]: Finished difference Result 109818 states and 155995 transitions. [2022-12-14 15:03:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:03:34,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 278 [2022-12-14 15:03:34,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:34,558 INFO L225 Difference]: With dead ends: 109818 [2022-12-14 15:03:34,558 INFO L226 Difference]: Without dead ends: 109653 [2022-12-14 15:03:34,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:03:34,607 INFO L413 NwaCegarLoop]: 3814 mSDtfsCounter, 2610 mSDsluCounter, 10300 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2610 SdHoareTripleChecker+Valid, 14114 SdHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:34,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2610 Valid, 14114 Invalid, 1849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1844 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2022-12-14 15:03:34,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109653 states. [2022-12-14 15:03:39,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109653 to 109624. [2022-12-14 15:03:39,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109624 states, 64829 states have (on average 1.2677042681515989) internal successors, (82184), 66742 states have internal predecessors, (82184), 36488 states have call successors, (36488), 8622 states have call predecessors, (36488), 8303 states have return successors, (37068), 35288 states have call predecessors, (37068), 36472 states have call successors, (37068) [2022-12-14 15:03:39,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109624 states to 109624 states and 155740 transitions. [2022-12-14 15:03:39,478 INFO L78 Accepts]: Start accepts. Automaton has 109624 states and 155740 transitions. Word has length 278 [2022-12-14 15:03:39,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:39,479 INFO L495 AbstractCegarLoop]: Abstraction has 109624 states and 155740 transitions. [2022-12-14 15:03:39,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 15:03:39,479 INFO L276 IsEmpty]: Start isEmpty. Operand 109624 states and 155740 transitions. [2022-12-14 15:03:39,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-12-14 15:03:39,489 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:39,490 INFO L195 NwaCegarLoop]: trace histogram [20, 14, 14, 14, 14, 14, 14, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:39,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 15:03:39,490 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:03:39,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:39,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1331840988, now seen corresponding path program 1 times [2022-12-14 15:03:39,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:03:39,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58225344] [2022-12-14 15:03:39,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:39,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:03:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:39,898 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2022-12-14 15:03:39,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:03:39,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58225344] [2022-12-14 15:03:39,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58225344] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:39,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:03:39,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:03:39,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872211721] [2022-12-14 15:03:39,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:39,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:03:39,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:03:39,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:03:39,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:03:39,900 INFO L87 Difference]: Start difference. First operand 109624 states and 155740 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 15:03:42,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:43,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:45,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:48,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:51,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:03:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:55,646 INFO L93 Difference]: Finished difference Result 110686 states and 156945 transitions. [2022-12-14 15:03:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:03:55,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 279 [2022-12-14 15:03:55,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:56,089 INFO L225 Difference]: With dead ends: 110686 [2022-12-14 15:03:56,090 INFO L226 Difference]: Without dead ends: 110684 [2022-12-14 15:03:56,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:03:56,135 INFO L413 NwaCegarLoop]: 2791 mSDtfsCounter, 107 mSDsluCounter, 8282 mSDsCounter, 0 mSdLazyCounter, 1520 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 11073 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1520 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:56,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 11073 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1520 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2022-12-14 15:03:56,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110684 states. [2022-12-14 15:04:00,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110684 to 110684. [2022-12-14 15:04:00,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110684 states, 65497 states have (on average 1.2667603096325022) internal successors, (82969), 67410 states have internal predecessors, (82969), 36680 states have call successors, (36680), 8822 states have call predecessors, (36680), 8503 states have return successors, (37260), 35480 states have call predecessors, (37260), 36664 states have call successors, (37260) [2022-12-14 15:04:01,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110684 states to 110684 states and 156909 transitions. [2022-12-14 15:04:01,356 INFO L78 Accepts]: Start accepts. Automaton has 110684 states and 156909 transitions. Word has length 279 [2022-12-14 15:04:01,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:04:01,356 INFO L495 AbstractCegarLoop]: Abstraction has 110684 states and 156909 transitions. [2022-12-14 15:04:01,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 15:04:01,357 INFO L276 IsEmpty]: Start isEmpty. Operand 110684 states and 156909 transitions. [2022-12-14 15:04:01,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-12-14 15:04:01,376 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:04:01,377 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:01,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-14 15:04:01,377 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:04:01,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:04:01,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1417963226, now seen corresponding path program 1 times [2022-12-14 15:04:01,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:04:01,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818113840] [2022-12-14 15:04:01,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:04:01,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:04:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:04:01,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2022-12-14 15:04:01,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:04:01,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818113840] [2022-12-14 15:04:01,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818113840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:04:01,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:04:01,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:04:01,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980870090] [2022-12-14 15:04:01,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:04:01,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:04:01,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:04:01,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:04:01,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:04:01,898 INFO L87 Difference]: Start difference. First operand 110684 states and 156909 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-12-14 15:04:04,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:04:07,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:04:10,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:04:16,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:04:16,073 INFO L93 Difference]: Finished difference Result 266791 states and 377588 transitions. [2022-12-14 15:04:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:04:16,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 328 [2022-12-14 15:04:16,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:04:16,653 INFO L225 Difference]: With dead ends: 266791 [2022-12-14 15:04:16,653 INFO L226 Difference]: Without dead ends: 156154 [2022-12-14 15:04:17,030 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 15:04:17,031 INFO L413 NwaCegarLoop]: 4388 mSDtfsCounter, 2109 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 18 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 7090 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:04:17,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 7090 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1029 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 15:04:17,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156154 states. [2022-12-14 15:04:22,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156154 to 155916. [2022-12-14 15:04:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155916 states, 92986 states have (on average 1.2659109973544405) internal successors, (117712), 95767 states have internal predecessors, (117712), 50468 states have call successors, (50468), 12938 states have call predecessors, (50468), 12458 states have return successors, (51103), 48552 states have call predecessors, (51103), 50452 states have call successors, (51103) [2022-12-14 15:04:23,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155916 states to 155916 states and 219283 transitions. [2022-12-14 15:04:23,322 INFO L78 Accepts]: Start accepts. Automaton has 155916 states and 219283 transitions. Word has length 328 [2022-12-14 15:04:23,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:04:23,322 INFO L495 AbstractCegarLoop]: Abstraction has 155916 states and 219283 transitions. [2022-12-14 15:04:23,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2022-12-14 15:04:23,322 INFO L276 IsEmpty]: Start isEmpty. Operand 155916 states and 219283 transitions. [2022-12-14 15:04:23,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-12-14 15:04:23,479 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:04:23,479 INFO L195 NwaCegarLoop]: trace histogram [23, 16, 16, 16, 16, 16, 16, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:04:23,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-14 15:04:23,480 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:04:23,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:04:23,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2005191743, now seen corresponding path program 1 times [2022-12-14 15:04:23,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:04:23,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75680354] [2022-12-14 15:04:23,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:04:23,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:04:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:04:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1357 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1342 trivial. 0 not checked. [2022-12-14 15:04:23,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:04:23,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75680354] [2022-12-14 15:04:23,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75680354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:04:23,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:04:23,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:04:23,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452278207] [2022-12-14 15:04:23,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:04:23,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:04:23,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:04:23,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:04:23,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:04:23,853 INFO L87 Difference]: Start difference. First operand 155916 states and 219283 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-12-14 15:04:27,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:04:28,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:04:30,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:04:32,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:04:34,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:04:37,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:04:43,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:04:43,129 INFO L93 Difference]: Finished difference Result 359728 states and 505673 transitions. [2022-12-14 15:04:43,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:04:43,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 375 [2022-12-14 15:04:43,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:04:43,901 INFO L225 Difference]: With dead ends: 359728 [2022-12-14 15:04:43,901 INFO L226 Difference]: Without dead ends: 203906 [2022-12-14 15:04:44,379 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 15:04:44,379 INFO L413 NwaCegarLoop]: 4512 mSDtfsCounter, 2103 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 7212 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:04:44,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 7212 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1065 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2022-12-14 15:04:44,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203906 states. [2022-12-14 15:04:52,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203906 to 203668. [2022-12-14 15:04:52,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203668 states, 121826 states have (on average 1.26518148835224) internal successors, (154132), 125509 states have internal predecessors, (154132), 65152 states have call successors, (65152), 17330 states have call predecessors, (65152), 16686 states have return successors, (65851), 62510 states have call predecessors, (65851), 65136 states have call successors, (65851) [2022-12-14 15:04:53,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203668 states to 203668 states and 285135 transitions. [2022-12-14 15:04:53,740 INFO L78 Accepts]: Start accepts. Automaton has 203668 states and 285135 transitions. Word has length 375 [2022-12-14 15:04:53,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:04:53,741 INFO L495 AbstractCegarLoop]: Abstraction has 203668 states and 285135 transitions. [2022-12-14 15:04:53,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-12-14 15:04:53,741 INFO L276 IsEmpty]: Start isEmpty. Operand 203668 states and 285135 transitions. [2022-12-14 15:04:53,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2022-12-14 15:04:53,766 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:04:53,767 INFO L195 NwaCegarLoop]: trace histogram [25, 16, 16, 16, 16, 16, 16, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:04:53,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-14 15:04:53,767 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:04:53,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:04:53,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1358837019, now seen corresponding path program 1 times [2022-12-14 15:04:53,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:04:53,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608431609] [2022-12-14 15:04:53,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:04:53,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:04:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:04:54,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1601 trivial. 0 not checked. [2022-12-14 15:04:54,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:04:54,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608431609] [2022-12-14 15:04:54,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608431609] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:04:54,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:04:54,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:04:54,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981324710] [2022-12-14 15:04:54,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:04:54,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:04:54,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:04:54,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:04:54,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:04:54,433 INFO L87 Difference]: Start difference. First operand 203668 states and 285135 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 15:05:00,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:05:02,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:05:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:05:10,576 INFO L93 Difference]: Finished difference Result 393387 states and 551481 transitions. [2022-12-14 15:05:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:05:10,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 437 [2022-12-14 15:05:10,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:05:11,458 INFO L225 Difference]: With dead ends: 393387 [2022-12-14 15:05:11,458 INFO L226 Difference]: Without dead ends: 203668 [2022-12-14 15:05:11,902 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 15:05:11,902 INFO L413 NwaCegarLoop]: 3099 mSDtfsCounter, 688 mSDsluCounter, 2213 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 5312 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:05:11,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 5312 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 719 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-12-14 15:05:12,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203668 states. [2022-12-14 15:05:19,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203668 to 203668. [2022-12-14 15:05:19,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203668 states, 121826 states have (on average 1.2651732799238258) internal successors, (154131), 125509 states have internal predecessors, (154131), 65152 states have call successors, (65152), 17330 states have call predecessors, (65152), 16686 states have return successors, (65851), 62510 states have call predecessors, (65851), 65136 states have call successors, (65851) [2022-12-14 15:05:20,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203668 states to 203668 states and 285134 transitions. [2022-12-14 15:05:20,674 INFO L78 Accepts]: Start accepts. Automaton has 203668 states and 285134 transitions. Word has length 437 [2022-12-14 15:05:20,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:05:20,675 INFO L495 AbstractCegarLoop]: Abstraction has 203668 states and 285134 transitions. [2022-12-14 15:05:20,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 15:05:20,675 INFO L276 IsEmpty]: Start isEmpty. Operand 203668 states and 285134 transitions. [2022-12-14 15:05:20,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2022-12-14 15:05:20,704 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:20,704 INFO L195 NwaCegarLoop]: trace histogram [25, 16, 16, 16, 16, 16, 16, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:20,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-14 15:05:20,705 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:05:20,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:20,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1648692760, now seen corresponding path program 1 times [2022-12-14 15:05:20,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:20,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286767147] [2022-12-14 15:05:20,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:20,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:05:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1621 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1605 trivial. 0 not checked. [2022-12-14 15:05:21,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:05:21,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286767147] [2022-12-14 15:05:21,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286767147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:05:21,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:05:21,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:05:21,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644736803] [2022-12-14 15:05:21,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:05:21,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:05:21,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:05:21,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:05:21,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:05:21,425 INFO L87 Difference]: Start difference. First operand 203668 states and 285134 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-12-14 15:05:25,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:05:28,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:05:30,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:05:32,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:05:36,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:05:46,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:05:46,301 INFO L93 Difference]: Finished difference Result 472068 states and 672635 transitions. [2022-12-14 15:05:46,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:05:46,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 458 [2022-12-14 15:05:46,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:05:47,444 INFO L225 Difference]: With dead ends: 472068 [2022-12-14 15:05:47,444 INFO L226 Difference]: Without dead ends: 268494 [2022-12-14 15:05:48,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:05:48,064 INFO L413 NwaCegarLoop]: 4351 mSDtfsCounter, 1329 mSDsluCounter, 6024 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 639 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 10375 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:05:48,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 10375 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 1329 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2022-12-14 15:05:48,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268494 states. [2022-12-14 15:05:58,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268494 to 203668. [2022-12-14 15:05:58,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203668 states, 121826 states have (on average 1.2645740646495822) internal successors, (154058), 125509 states have internal predecessors, (154058), 65152 states have call successors, (65152), 17330 states have call predecessors, (65152), 16686 states have return successors, (65851), 62510 states have call predecessors, (65851), 65136 states have call successors, (65851) [2022-12-14 15:05:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203668 states to 203668 states and 285061 transitions. [2022-12-14 15:05:59,387 INFO L78 Accepts]: Start accepts. Automaton has 203668 states and 285061 transitions. Word has length 458 [2022-12-14 15:05:59,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:05:59,387 INFO L495 AbstractCegarLoop]: Abstraction has 203668 states and 285061 transitions. [2022-12-14 15:05:59,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2022-12-14 15:05:59,387 INFO L276 IsEmpty]: Start isEmpty. Operand 203668 states and 285061 transitions. [2022-12-14 15:05:59,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2022-12-14 15:05:59,420 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:59,421 INFO L195 NwaCegarLoop]: trace histogram [25, 16, 16, 16, 16, 16, 16, 13, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:59,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-14 15:05:59,421 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:05:59,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:59,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1813245158, now seen corresponding path program 1 times [2022-12-14 15:05:59,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:59,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038277290] [2022-12-14 15:05:59,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:59,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:06:00,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1627 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1611 trivial. 0 not checked. [2022-12-14 15:06:00,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:06:00,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038277290] [2022-12-14 15:06:00,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038277290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:06:00,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:06:00,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:06:00,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245058239] [2022-12-14 15:06:00,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:06:00,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:06:00,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:06:00,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:06:00,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:06:00,108 INFO L87 Difference]: Start difference. First operand 203668 states and 285061 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-12-14 15:06:03,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:06:06,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:06:09,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:06:17,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:06:17,841 INFO L93 Difference]: Finished difference Result 408330 states and 574115 transitions. [2022-12-14 15:06:17,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:06:17,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 486 [2022-12-14 15:06:17,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:06:18,814 INFO L225 Difference]: With dead ends: 408330 [2022-12-14 15:06:18,814 INFO L226 Difference]: Without dead ends: 204756 [2022-12-14 15:06:19,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 15:06:19,409 INFO L413 NwaCegarLoop]: 2747 mSDtfsCounter, 11 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5479 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:06:19,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5479 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 749 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 15:06:19,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204756 states. [2022-12-14 15:06:28,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204756 to 203804. [2022-12-14 15:06:28,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203804 states, 121962 states have (on average 1.2642790377330644) internal successors, (154194), 125645 states have internal predecessors, (154194), 65152 states have call successors, (65152), 17330 states have call predecessors, (65152), 16686 states have return successors, (65851), 62510 states have call predecessors, (65851), 65136 states have call successors, (65851) [2022-12-14 15:06:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203804 states to 203804 states and 285197 transitions. [2022-12-14 15:06:29,328 INFO L78 Accepts]: Start accepts. Automaton has 203804 states and 285197 transitions. Word has length 486 [2022-12-14 15:06:29,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:06:29,328 INFO L495 AbstractCegarLoop]: Abstraction has 203804 states and 285197 transitions. [2022-12-14 15:06:29,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-12-14 15:06:29,329 INFO L276 IsEmpty]: Start isEmpty. Operand 203804 states and 285197 transitions. [2022-12-14 15:06:29,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2022-12-14 15:06:29,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:06:29,362 INFO L195 NwaCegarLoop]: trace histogram [25, 16, 16, 16, 16, 16, 16, 13, 13, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:06:29,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-14 15:06:29,362 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 15:06:29,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:06:29,362 INFO L85 PathProgramCache]: Analyzing trace with hash 813501102, now seen corresponding path program 1 times [2022-12-14 15:06:29,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:06:29,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768981089] [2022-12-14 15:06:29,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:06:29,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:06:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:06:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1631 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1631 trivial. 0 not checked. [2022-12-14 15:06:30,505 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:06:30,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768981089] [2022-12-14 15:06:30,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768981089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:06:30,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:06:30,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:06:30,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895011730] [2022-12-14 15:06:30,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:06:30,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:06:30,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:06:30,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:06:30,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:06:30,508 INFO L87 Difference]: Start difference. First operand 203804 states and 285197 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-12-14 15:06:33,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:06:37,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:06:40,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:06:47,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:06:56,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:06:56,027 INFO L93 Difference]: Finished difference Result 393669 states and 551622 transitions. [2022-12-14 15:06:56,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:06:56,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 491 [2022-12-14 15:06:56,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:06:57,626 INFO L225 Difference]: With dead ends: 393669 [2022-12-14 15:06:57,626 INFO L226 Difference]: Without dead ends: 393667 [2022-12-14 15:06:57,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:06:57,782 INFO L413 NwaCegarLoop]: 3479 mSDtfsCounter, 2955 mSDsluCounter, 9645 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 13124 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:06:57,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2970 Valid, 13124 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1522 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2022-12-14 15:06:58,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393667 states.